Profile Dauntless SBD-3 THE IDEA FOR 15-sized Profile Carrier came club members called during early month 1982 concerned so-called beginners Carrier event Profile Carrier grown too complicated Hot engines line sliders ailerons flaps rudders often graced mechanisms could make Rube Goldberg envious Dave concerned club mem ber suggested new beginning Carrier event 15 engine jumped chance design model sim plicity decided movable components during flight would throttle elevators tail hook first model HR 15-powered Wildcat flown 5214-ft lines achieved top speed 60 mph Most members model club Rocky Mountain Aeromodelers have flown airplane Top completed model ready flight ltweighsin at24oz LeftThe l5Dauntless low-speed fllghtwlth tail hook down lttakesonlyasmallamountofup-ele vator hold model reduced speed Its very stable flier lIfting off deck quickly smooth high-speed flight before going low-speed phase unanimous comment Hey fun could hardly feel 15 Carrier airplane end lines less 7 lb pull 60 mph took very little effort fly Talk about economy could make three flights same amount fuel used flight 35-powered Carrier airplane Also model built about half cost 15 Wildcat experience club established following rules 15 Profile Navy Carrier 1 Use existing Profile Navy Carrier rules except specified following rules 2 Engine 1525 cu maximum 3 Line length52 ft 0 52 ft 6 4 Minimum line diameter012 stranded 010 solid 5 Scale bonus pointsnone 6 Minimum wing areanone 7 Maximum high speed scoring 70 mph 8 Permissible movable components throttle hook elevator 9 Time model eight laps lieu landing hook up position left down position right released up position quick down-elevator control movement details see pictures further clarified authors excellent exploded-view drawings seven rules decided next model should 1 Have wing area 160 sq 2 Have low wing throttle control difficult route around fuel tank mid-wing design 3 replica actual Navy carrier airplane After searching through information about World War II carrier air craft selected favorite air planes Douglas SBD-3 Dauntless span 22A model would have wing area 161 sq has low wing Douglas Dauntless Navys principal carrier-based dive bomber dur ing World War II tack Pearl Harbor until V-J day airplane responsible sinking 18 warships six carriers over 300000 tons enemy shipping Also Dauntless gunners shot down 138 Japanese planes fewer 80 Dauntlesses shot down Japanese aircraft wars end US carrier aircraft operational Pearl Harbor still service Altogether 5321 Dauntlesses built Douglas Construction model basically volves conventional construction techniques Only method mounting landing gear control bellcranks corporate somewhat novel practices recommend components model built following order land ing gear wing fuselage empennage An easy way transfer various pieces such ribs doublers spars etc plans patterns wood starts making Xerox copies compo nents Cut out Xeroxed patterns glue applicable balsa plywood pieces rubber cement After components have cut out can peel off paper templates best part havent cut up plans concept 15-powered Control Line Profile Carrier club competition has successful Rocky Mountain Aeromodelers due large part simplicity systems allowed models have appealing ap pearance well see exampleE Gerry Deneau Left direct attention engine fuel tank Installation view Youll want strong 15 engine carburetor Right jig eases building landing gear left gear leg shown place right gear leg uses opposite side jig November 1984 73 ____________5 ENGINEI 02 WEIGHT -~FRONT SPAR LEFT LER3/32 PLOWOODI Il/INPL H ____B __ ______________________________________________3/402 O LEADING EDGES4 IMARE FROM BALSAB0 SN. I/16B I/IS NOTCHES FOR RIBS ~ BALSA N*1/16 PLYWOOD 7''~( LG SOPPORT PLATE ELCOATOR BELLCRANR- .E 025 MUSIC WIRE~-SOLDER TO HOOK HOOK MUSIC WIRCI G THROTTLEBELLCRANHI/HS I/B SPAR CAPS BARE FROM 3 BELLCHANHSI B I/IS FOR S-S HANDLELG STRAP 2 I/H FOR ROBEHTDC Il/B WI NH DOABLER ______ I/IN PLOWOODI -130—I/W PLYWOOD I1/16 WHEELNO60 3/4 SCREWRIBS A-H S/BO S/B HARD MAPLE/BD 3/B BASSWOOD10 ENGINE MOUNTS S/BDOUBLER Z § J7I7AI ___Il/H BALSAI WHITE LETTERS______ - E-___ -___ CONNECT ELEVATORS SHEET OF DI __________AlL WHE EL _______-DAUNTLESS _________WING DPAN2BTD WING AREA 161 DOIS PROFILE CARRIER EADIND SPACER_________DEDIGNED B DRAWN BY GERALD DENEAA Landing gear might think odd build landing gear first reason main landing gear must stalled during wing construction Refer Sheet 1 plans detail Item 6 dimensions main landing gear made %2-in music wire sure slide aileron horn bearing onto wire before making final bend 1 A-in leg horn bearing permits landing gear incorporate efficient torsion bar action flexing loads ab sorbed twisting action horizontal part gear Make left main gear first construct right gear mirror op posite accurate landing gear bends use jig Refer Sheet 1 plans detail Item 9 dimensions tail gear Use A6-in music wire loop bolt can made bending wire around nail held vise nail should same diameter 2-56 bolt Solder inboard washer wire install A-in wheel solder Profile Dauntless structure has completed covered its now ready painting decorating Balsa ply construction typical profile CL models retaining washer wing complicated part model However following se quence will simplify its construction Make two Ribs through H holes bellcrank lead-out wires needed set ribs Make ribs sheet balsa Ribs B through H A6 balsa Make landing gear spar Item 3 3A2 plywood two doublers Item 4 A6 plywood two spacers Item 15 AD balsa Make leading edge spacer Item 2 A-in balsa Make two leading edges Item 1 left right 3A-in balsa A6-in notches used simplify positioning wing ribs shape leading edges time Retain rectangular cross section until final stages wing assembly Make lower engine mount Item 14 hard maple Drill A-in hole bellcrank mounting bolt Countersink install 6-32 blind nut Make landing gear support plate Item 5 A6 plywood Make trailing edges AA x 1-in balsa strips Glue outboard trailing edges center section trailing edge Make two important step assembling straight wing hold rib alignment strongly suggest use A-justo-jig Great Planes wing jig similar device handmade jig also does job very well sure 74 Model Aviation Full-Size Plans Available. See Page 180 B/B A I/B BALSA 1/16 BALSA032 MUSIC WIRETHREASES LINK 1/16 THREADED COUPLER SOLDER TO PUSOROSI3/5 UALSA 1/16 BALSA CONTROL MORN 25 / U PLYWOOD I/lU PLYWOOD-025 MUSIC WIRE I/3D BALSA I/lU BALSA 1/16 BALSA MAIN 3/32 BRASS NO2 MASHER SOLDER ______________________ /10 PLYWOQO lU WHEEL COLLARS 3/B U 3/B HARD MAPLE~ISPLYWOOD @ 3/B BALSA I/B 0 I/H BALSA U DO BLIND NOT NO B FLAT WASHES ~---~--lAO NEEDEDI N ROTTLE BELLORANK ELEVATOR PUORROD s11/16 MUSIC WIRE K WASHERS~ SOLDER LINKS SPARK BREADED COOP ER \~---Am ELEVATOR BELLCRANB SOLDER SHROD U P_WOOD~J5_________ HREADEDNB6-SD U I/O BOLT ITRIM FLUSH ROTI AND NO STRA-DETAILi.THROTTLE PUORROS 11/16 THREADED ROD NO 20DB SCREWS DETAIL B DETAIL IBMEET DO DI DAUNTLESS DRAWN BY SERALO DENEAUSBD3 chord line rib same distance above working surface Glue lower engine mount Item 22 root ribs Item Locate ribs proper positions glue trailing edges Position front spar Item 3 glue center section ribs Items through D Glue leading edge spacer Item 2 front spar Position left leading edge Item 1 wing ribs serted slots Glue place Repeat right leading edge Position glue upper spar caps place Turn wing upside down glue lower spar cap ribs Glue leading edge segments Item 17 leading edges wing center section Glue landing gear support plates Item 5 front spar ribs Items B C lower spar cap plates fit notches bottom edge front spar lay top lower spar cap Before proceeding leading edge sheeting install landing gear bellcranks wing control system Temporarily position left gear bearing horn shoulder presses against lower edge spar board end horn touching board rib Item C Refer Detail C Check spacer Item 15 fits tween horn rib Item D Remove landing gear glue spacer place Repeat right gear spacer Reposition left gear horn against spar inboard landing gear leg laying support plate Item 5 place doubler Item 4 aft side horn spacer Drill two XH-in holes through doubler horn spar part way leading edge Temporarily insert toothpicks holes back side Enlarge holes needed permit toothpicks penetrate leading edge Withdraw toothpicks doubler landing gear Apply epoxy glue both sides horn front side doub ler Reposition landing gear horn spar place doubler against horn spacer insert toothContinued page 170 Left article written members Rocky Mountain Aeromodeers built five Profile Dauntiessestwo shown Right author gerry Deneau first 15 Carrier model Gruman Wildcat L second Dauntless featured November 1984 75 CL CombatlJohnson Continued page 168 pie turns rich-lean rather usual one-eighth turn During Saturday night repairing model used made six matches chance use epoxy injector Chuck Rudner Myles Lawrence made Its just regular syringe some brass tubing stuck tip sharpened will slice soft wood foam Its easy mix epoxy equal amounts because have ounce cc graduations side also found microwave superior old hot-water trick comes warming epoxy itll set faster put whole thing Howard Rushs oven worked fine Cleanup pretty easy because epoxy used didnt stick plastic syringe rubber plunger Make sure brass tube clear epoxy before sets can see revolution model repair during matches Envision pit crew premixed portions epoxy kept cooler model hits ground 10cc portion rushed microwave being run generator much time left match mechanic sets control Roast 10 seconds later epoxy ready go 25 seconds later 5-minute epoxy has dried engine being started Well above may work too well have Howard Rush story everyone Howard will representing USA Combat team year besides some exotic FAI stuff has some equally-exotic Fast Combat materi al choice propeller Y&O cast carbon fibre Mind no thinned down Y&O real McCoy measure ruler rather calipers Just confound everyone models very fast using ratherFifties-appearing prop Howard crashed matches Rich Lopez couldnt get prop off couldnt get off during match after match rest day theorized heat crank must have glued prop together Lopez suggested using chisel maybe just sticking whole thing microwave seeing what would happen Just after midnight Rich succeeded getting remains prop off using gear puller same thing can happen some plastic-type props break off cleanly thrust washer Noth ing short miracle would have saved us good water-pump pliers might help Something did think about after match lost leaving hub place just putting another prop since engine Brasher crank would have enough room second prop washer left off received some literature USE 15 model engine see photo looks very interesting another good 15 couldnt hurt claim 85 horse power very light weight 114 grams four ounces cylinder barrel has intergral cooling fins much like old K&D greenheads exhaust exits right side about midway between sideport engine rearport crank 10mm diameter plenty robust note received said would some engines World Championships address USE Floridadreef 17 3565 AM Utrecht Neth erlands should much engine after World Championships Charlie Johnson 3716 Ingraham St San Diego CA 92109 Profile DauntlesslDeneau Continued page 75 picks Clamp hold assembly togeth er until epoxy sets up Secure land ing gear leg support plate landing gear strap No 2 x 3/-in screws Follow same steps right landing gear Attach lead-out wires bellcranks see Detail C assemble elevator bellcrank Item 7 throttle bellcrank Item B bolt washers DUAL PERSONAUTY TRAINER GEEMS BEAUTIFUL SUPER CHAMP WS 54 20 - 35 ENGINEs 3 CHANNEL THE BEGINNERS KITT AND EXPERTS TIC Revolutionary snap ss wing eliminates bolts fibber Complete kit $5495 dealer GEMINI MODELS INC PO Soy 1 168 Pussaic NJ 07050 locknut Trim bolt flush nut Thread lead-out wires through lefi wing secure bellcrank assembi lower engine mount bolt anc washers cut off bolt flush tor blind nut Cut off piece A6-in music wire g length 8 throttle linkage Solder clevis link end Drill Y-in hole through leading edge leading edge spacer spar hole lines up outer hole throttle bellcrank inside wing thread unsoldered end through leading edge hole Engage solder link outboard hole throttle bellcrank Item 8 Cut off piece 1/6-in wire length 12 solder clevis link end wire will used elevator pushrod Drill A-in hole through trailing edge wing /2 right wing centerline Widen hole make x Ye-in slot inside wing slide unsoldered end through trailing edge engage solder link elevator bellcrank Glue upper lower leading edge sheets rib leading edges spar caps Glue balsa sheet segments between Ribs B C between Ribs C D Glue spar caps ribs See Detail C Item 16 Glue Vie sheeting upper lower surfaces center section ribs Cut rib cap strips Detail B Item 31 glue upper lower edges ribs Items E F G Sand leading edges shape should blend smoothly leading edge sheeting Make right wing tip A-in balsa block Roughly shape ghw place sanding block final shaping blend tip smoothly wing left wing tip made like sand wich lower part made A-in balsa center pieces balsa top piece Ae balsa Detail B Glue pieces together drill holes eyelets Thread lead-out wires through holes glue tip wing Sand shape Position eyelets glue place tie ends 170 Model Aviation [ REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE Incoeporote J 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm 7ICHANGE TO RECHARG EARL Re lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo $3500 RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI J RC Reference YouwII Read Year Round wont gather dust R/C bookshelf youll Keep too busy workbench lap Because new Radio Control Buyers Guide 8th Edition design ed used year round planning projects locating hardto-find products getting ahad hobby Guide master reference work R/C product formation 8th edition features over 2500 RC Aircraft Cars Boats related products including hundreds new pro ducts recently released Toledo other major R/C shows highly descriptive information illustrated thousands photographs new double-listing format easier-than-ever use Newcomers will find Guide mind-jogging excursion seemingly endless possibilities R/C world wildest machines its devotees Models shown commercially available Get new Radio Control Buyers Guide 8th Edition Its R/C reference book youll read f wires time will done ifter engine installed Final-sand wing remove rough dges fuselage constructed like pro File models deviation nor nal practice installation bass vood reinforcement strip between up per lower fuselage pieces Refer Detail First cut out upper lower fuse age pieces Y-in balsa cut asswood strip Item 20 upper engine mount Item 22 correct lengths 3lue basswood strip lower Fuselage Item 19 Glue upper engine mount upper fuselage Item 18 iure lower surface engine mount flush bottom surface upper fuselage Cut balsa spacer Item 23 glue tin place Position upper fuselage lie lower fuselage Check V-in slot exists between upper fuselage ipacer must enough space stabilizer inserted Cut two round doublers Item 10 X6 plywood Drill A6-in hole through center doubler through lower fuselage Glue doublers asing A6-in wire hold pieces align ment remove wire before glue sets Make tail gear doublers Item 29 X6 plywood glue side lower fuselage glue has dried drill A-in hole front leg tail gear A-in hole tail gear mounting bolt Redrill X6-in hole through center round doublers Also outboard side fuselage drill A6-in hole Y-in deep doubler fuselage last hole located lower aft part outboard doubler will used locate #6 x X-in screw Sand fuselage its final shape Tail surfaces Make stabilizer Item 27 elevators Item 28 fin Item 25 rudder Item 26 A-in balsa Sand parts shape Glue rudder fin rudder trailing edge off set Connect left right eleva tors music wire Item 29 Secure wire elevators epoxy Cut slots elevators stabilizer hinges Insert hinges stabilizer glue place After glue dries slide elevators onto hinges glue place careful get glue hinge pivot areas Install control horn right elevator Assembly Slide stabilizer elevator assembly fuselage slot secure glue Next glue tail cone spacer Item 24 fuselage leaving equal space between elevators spacer Glue fin rudder assembly top fuselage Glue wing fuselage Glue fuselage chin Item 21 lower engine mount wing leading edge Sand rough edges joints glue plywood rein forcements Items 11 12 fuselage epoxy Position engine locate mounting holes Drill A-in holes mounting counter sinking larger holes inboard side blind nuts Position fuel tank drill 42-in mounting holes Install fuel tank retaining wires Bend elevator pushrod aligns appropriate hole elevator horn Screw threaded cotipler threaded link connect link elevator horn Cut elevator pushrod fit threaded coupler Solder pushrod coupler Install engine Screw threaded coupler onto threaded link refer Detail C Connect link engine throttle arm arm half-throttle position throttle bellcrank neutral position bend throttle pushrod align coupler Cut pushrod solder coupler Slide brass eyelets over lead-out wires glue wing tip epoxy Move throttle arm fullthrottle position Holding arm position tie ends lead-out wires shown Sheet 1 plans Hook installation Fabricate hook November1984 171 See Hobby Dealer dealer send $695 plus $200 postage handling 1BOYNTON & ASSOCIATES INC CLIFTON HOUSE CUFTON VA 22024 NEW MK 2 H & K SUPER STARTERS Look before leap original still best Has new larger clutch fully supported applications 90 day warranty new lower prices MODEL 1 Q-35 Q-50 ZENOAH ROPER MODEL 2Super Hustler MAG II MODEL 3Tartan Twin Super Twin Glow Manufactured Distributed P K Products PO Box 62260 Hayward CA 945400 415 581-4277 Add $150 postage handling Item 13 shown Sheet 1 plans Install hook fuselage shown Detail Install #6 x %-in screw A6-in hole drilled earlierscrew until protrudes 1A-in screw will used stop hook down position Wrap solder length A2-in music wire elevator pushrod bend hold tail hook up position Trim end wire hook will drop elevator full-down position see Detail B Item 20 Loop rubberband around hook engage screw extending round doubler Engage hook elevator pushrod recheck will drop full-down elevator Finishing Remove engine hook tail gear Cover wings silkspan equivalent material Paint upper part fuselage blue-gray lower part light gray plan shows approximate line separates colors upper part wing blue-gray bottom light gray canopy windows white Apply white fuselage lettering star insignias latter red white blue colors Apply 1 oz stick-on lead weight underside right wing tip stall engine fuel tank hook tail gear Check model balances within / center gravity CG loca tion shown Sheet 1 plans Apply nose tail weight needed achieve desired balance point Flying little Dauntless very stable flight lifts off deck very quickly settles down smooth high-speed flight Speeds 60 70 mph easily attained have flown Dauntless 70 mph take first place club contests Slowing down Dauntless lowspeed flight quite uneventful little ship requires small amount upelevator hold reduced speed practice can really get nose up correct throttle control being applied Landing best part Just pick Z495 $3295 $3995 Dealers inquiries invited spot chop throttle let settle Its easy make three-point landings model hope enjoy flying 15 Dauntless much have Happy landings ScannerlMarez Continued page 79 quickly possible crystals damaged soldering de-soldering like electronic components dont really like long sustained applica tions high temperatures Fortunately pins installed crystals cut off can re-use sockets after cleaning solder off Assuming interested couple new frequencies may opt solder new crystals point However interest cludes sockets should first talk about crystals little bit First former two types sockets available has same pin diameter spacing crystals will drop right hole printed circuit board Another has wide flat pins wider spacing will Both available Kraft Systems boardmounted type need point Part No 120-074 $300 other type use will described later Part No 120-141K $100 Small crystal sockets such something rarity dont bother looking Radio Shack small electronics supply houses Back crystals again recom mendation get Airtronics insist different source need HC-25/U type accept HC 18/U same size has long wires instead pins unless definitely intend solder Airtronics crystals come nice neat molded plastic cap identified colors channel numbers tremendous help especially have decided plug-in field changes ever cap too wide allow seven plug-in crystals space provided PC board can install sockets ProTt MO MOLDED STRONG -METAL FRAMEGREAT GIFT 5 FOAM FILLED Transmitter ection Case X PRICE $35 Include Shipping & Kondling US CA re odd 6% Send check yr 0 5 ERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 other position four plug-ins enough satisfy requirements can trim lip sides th molded cap narrows enough allow seven side-by-side crystals However previous men tion plug-in crystals will still need remove top cover whenever fre quency change required too slow involved constant changes required scanner ing used active contest situa tion will get worse new frequencies phased have developed ultimate update will now described Full-house update Basically will stall support-mounted crystal socket board high enough permit easy crystal identification changes clear plastic window will provided checking installed crystals new board being larger space initially used original crystal circuitry will require relocation speaker antenna mount Dont put off scary-sounding things recommended changes still mainly mechanical no volved electronics changes being required Start taking off top bottom covers rear panel Unsolder wires speaker antenna connec tor remove 12-volt power input jack panel Using small iron solder wick remove seven crystals board clean solder completely off pins best done applying bit paste solder flux heat wiping off melt ed solder rag careful leave solder bridges board dur ing desoldening operation make crystal socket board youll need piece 1-in spacing elec tronic prototype perforated board prefer ably epoxy-based type cheaper phenolic board acceptable though does drill cut cleanly epoxy strong Cut size 14 x 32 holes shown photo Referring again photo note locations new holes drill indicated Note 14 crystal 172 Model Aviation
Edition: Model Aviation - 1984/11
Page Numbers: 72, 73, 74, 75, 170, 171, 172
Profile Dauntless SBD-3 THE IDEA FOR 15-sized Profile Carrier came club members called during early month 1982 concerned so-called beginners Carrier event Profile Carrier grown too complicated Hot engines line sliders ailerons flaps rudders often graced mechanisms could make Rube Goldberg envious Dave concerned club mem ber suggested new beginning Carrier event 15 engine jumped chance design model sim plicity decided movable components during flight would throttle elevators tail hook first model HR 15-powered Wildcat flown 5214-ft lines achieved top speed 60 mph Most members model club Rocky Mountain Aeromodelers have flown airplane Top completed model ready flight ltweighsin at24oz LeftThe l5Dauntless low-speed fllghtwlth tail hook down lttakesonlyasmallamountofup-ele vator hold model reduced speed Its very stable flier lIfting off deck quickly smooth high-speed flight before going low-speed phase unanimous comment Hey fun could hardly feel 15 Carrier airplane end lines less 7 lb pull 60 mph took very little effort fly Talk about economy could make three flights same amount fuel used flight 35-powered Carrier airplane Also model built about half cost 15 Wildcat experience club established following rules 15 Profile Navy Carrier 1 Use existing Profile Navy Carrier rules except specified following rules 2 Engine 1525 cu maximum 3 Line length52 ft 0 52 ft 6 4 Minimum line diameter012 stranded 010 solid 5 Scale bonus pointsnone 6 Minimum wing areanone 7 Maximum high speed scoring 70 mph 8 Permissible movable components throttle hook elevator 9 Time model eight laps lieu landing hook up position left down position right released up position quick down-elevator control movement details see pictures further clarified authors excellent exploded-view drawings seven rules decided next model should 1 Have wing area 160 sq 2 Have low wing throttle control difficult route around fuel tank mid-wing design 3 replica actual Navy carrier airplane After searching through information about World War II carrier air craft selected favorite air planes Douglas SBD-3 Dauntless span 22A model would have wing area 161 sq has low wing Douglas Dauntless Navys principal carrier-based dive bomber dur ing World War II tack Pearl Harbor until V-J day airplane responsible sinking 18 warships six carriers over 300000 tons enemy shipping Also Dauntless gunners shot down 138 Japanese planes fewer 80 Dauntlesses shot down Japanese aircraft wars end US carrier aircraft operational Pearl Harbor still service Altogether 5321 Dauntlesses built Douglas Construction model basically volves conventional construction techniques Only method mounting landing gear control bellcranks corporate somewhat novel practices recommend components model built following order land ing gear wing fuselage empennage An easy way transfer various pieces such ribs doublers spars etc plans patterns wood starts making Xerox copies compo nents Cut out Xeroxed patterns glue applicable balsa plywood pieces rubber cement After components have cut out can peel off paper templates best part havent cut up plans concept 15-powered Control Line Profile Carrier club competition has successful Rocky Mountain Aeromodelers due large part simplicity systems allowed models have appealing ap pearance well see exampleE Gerry Deneau Left direct attention engine fuel tank Installation view Youll want strong 15 engine carburetor Right jig eases building landing gear left gear leg shown place right gear leg uses opposite side jig November 1984 73 ____________5 ENGINEI 02 WEIGHT -~FRONT SPAR LEFT LER3/32 PLOWOODI Il/INPL H ____B __ ______________________________________________3/402 O LEADING EDGES4 IMARE FROM BALSAB0 SN. I/16B I/IS NOTCHES FOR RIBS ~ BALSA N*1/16 PLYWOOD 7''~( LG SOPPORT PLATE ELCOATOR BELLCRANR- .E 025 MUSIC WIRE~-SOLDER TO HOOK HOOK MUSIC WIRCI G THROTTLEBELLCRANHI/HS I/B SPAR CAPS BARE FROM 3 BELLCHANHSI B I/IS FOR S-S HANDLELG STRAP 2 I/H FOR ROBEHTDC Il/B WI NH DOABLER ______ I/IN PLOWOODI -130—I/W PLYWOOD I1/16 WHEELNO60 3/4 SCREWRIBS A-H S/BO S/B HARD MAPLE/BD 3/B BASSWOOD10 ENGINE MOUNTS S/BDOUBLER Z § J7I7AI ___Il/H BALSAI WHITE LETTERS______ - E-___ -___ CONNECT ELEVATORS SHEET OF DI __________AlL WHE EL _______-DAUNTLESS _________WING DPAN2BTD WING AREA 161 DOIS PROFILE CARRIER EADIND SPACER_________DEDIGNED B DRAWN BY GERALD DENEAA Landing gear might think odd build landing gear first reason main landing gear must stalled during wing construction Refer Sheet 1 plans detail Item 6 dimensions main landing gear made %2-in music wire sure slide aileron horn bearing onto wire before making final bend 1 A-in leg horn bearing permits landing gear incorporate efficient torsion bar action flexing loads ab sorbed twisting action horizontal part gear Make left main gear first construct right gear mirror op posite accurate landing gear bends use jig Refer Sheet 1 plans detail Item 9 dimensions tail gear Use A6-in music wire loop bolt can made bending wire around nail held vise nail should same diameter 2-56 bolt Solder inboard washer wire install A-in wheel solder Profile Dauntless structure has completed covered its now ready painting decorating Balsa ply construction typical profile CL models retaining washer wing complicated part model However following se quence will simplify its construction Make two Ribs through H holes bellcrank lead-out wires needed set ribs Make ribs sheet balsa Ribs B through H A6 balsa Make landing gear spar Item 3 3A2 plywood two doublers Item 4 A6 plywood two spacers Item 15 AD balsa Make leading edge spacer Item 2 A-in balsa Make two leading edges Item 1 left right 3A-in balsa A6-in notches used simplify positioning wing ribs shape leading edges time Retain rectangular cross section until final stages wing assembly Make lower engine mount Item 14 hard maple Drill A-in hole bellcrank mounting bolt Countersink install 6-32 blind nut Make landing gear support plate Item 5 A6 plywood Make trailing edges AA x 1-in balsa strips Glue outboard trailing edges center section trailing edge Make two important step assembling straight wing hold rib alignment strongly suggest use A-justo-jig Great Planes wing jig similar device handmade jig also does job very well sure 74 Model Aviation Full-Size Plans Available. See Page 180 B/B A I/B BALSA 1/16 BALSA032 MUSIC WIRETHREASES LINK 1/16 THREADED COUPLER SOLDER TO PUSOROSI3/5 UALSA 1/16 BALSA CONTROL MORN 25 / U PLYWOOD I/lU PLYWOOD-025 MUSIC WIRE I/3D BALSA I/lU BALSA 1/16 BALSA MAIN 3/32 BRASS NO2 MASHER SOLDER ______________________ /10 PLYWOQO lU WHEEL COLLARS 3/B U 3/B HARD MAPLE~ISPLYWOOD @ 3/B BALSA I/B 0 I/H BALSA U DO BLIND NOT NO B FLAT WASHES ~---~--lAO NEEDEDI N ROTTLE BELLORANK ELEVATOR PUORROD s11/16 MUSIC WIRE K WASHERS~ SOLDER LINKS SPARK BREADED COOP ER \~---Am ELEVATOR BELLCRANB SOLDER SHROD U P_WOOD~J5_________ HREADEDNB6-SD U I/O BOLT ITRIM FLUSH ROTI AND NO STRA-DETAILi.THROTTLE PUORROS 11/16 THREADED ROD NO 20DB SCREWS DETAIL B DETAIL IBMEET DO DI DAUNTLESS DRAWN BY SERALO DENEAUSBD3 chord line rib same distance above working surface Glue lower engine mount Item 22 root ribs Item Locate ribs proper positions glue trailing edges Position front spar Item 3 glue center section ribs Items through D Glue leading edge spacer Item 2 front spar Position left leading edge Item 1 wing ribs serted slots Glue place Repeat right leading edge Position glue upper spar caps place Turn wing upside down glue lower spar cap ribs Glue leading edge segments Item 17 leading edges wing center section Glue landing gear support plates Item 5 front spar ribs Items B C lower spar cap plates fit notches bottom edge front spar lay top lower spar cap Before proceeding leading edge sheeting install landing gear bellcranks wing control system Temporarily position left gear bearing horn shoulder presses against lower edge spar board end horn touching board rib Item C Refer Detail C Check spacer Item 15 fits tween horn rib Item D Remove landing gear glue spacer place Repeat right gear spacer Reposition left gear horn against spar inboard landing gear leg laying support plate Item 5 place doubler Item 4 aft side horn spacer Drill two XH-in holes through doubler horn spar part way leading edge Temporarily insert toothpicks holes back side Enlarge holes needed permit toothpicks penetrate leading edge Withdraw toothpicks doubler landing gear Apply epoxy glue both sides horn front side doub ler Reposition landing gear horn spar place doubler against horn spacer insert toothContinued page 170 Left article written members Rocky Mountain Aeromodeers built five Profile Dauntiessestwo shown Right author gerry Deneau first 15 Carrier model Gruman Wildcat L second Dauntless featured November 1984 75 CL CombatlJohnson Continued page 168 pie turns rich-lean rather usual one-eighth turn During Saturday night repairing model used made six matches chance use epoxy injector Chuck Rudner Myles Lawrence made Its just regular syringe some brass tubing stuck tip sharpened will slice soft wood foam Its easy mix epoxy equal amounts because have ounce cc graduations side also found microwave superior old hot-water trick comes warming epoxy itll set faster put whole thing Howard Rushs oven worked fine Cleanup pretty easy because epoxy used didnt stick plastic syringe rubber plunger Make sure brass tube clear epoxy before sets can see revolution model repair during matches Envision pit crew premixed portions epoxy kept cooler model hits ground 10cc portion rushed microwave being run generator much time left match mechanic sets control Roast 10 seconds later epoxy ready go 25 seconds later 5-minute epoxy has dried engine being started Well above may work too well have Howard Rush story everyone Howard will representing USA Combat team year besides some exotic FAI stuff has some equally-exotic Fast Combat materi al choice propeller Y&O cast carbon fibre Mind no thinned down Y&O real McCoy measure ruler rather calipers Just confound everyone models very fast using ratherFifties-appearing prop Howard crashed matches Rich Lopez couldnt get prop off couldnt get off during match after match rest day theorized heat crank must have glued prop together Lopez suggested using chisel maybe just sticking whole thing microwave seeing what would happen Just after midnight Rich succeeded getting remains prop off using gear puller same thing can happen some plastic-type props break off cleanly thrust washer Noth ing short miracle would have saved us good water-pump pliers might help Something did think about after match lost leaving hub place just putting another prop since engine Brasher crank would have enough room second prop washer left off received some literature USE 15 model engine see photo looks very interesting another good 15 couldnt hurt claim 85 horse power very light weight 114 grams four ounces cylinder barrel has intergral cooling fins much like old K&D greenheads exhaust exits right side about midway between sideport engine rearport crank 10mm diameter plenty robust note received said would some engines World Championships address USE Floridadreef 17 3565 AM Utrecht Neth erlands should much engine after World Championships Charlie Johnson 3716 Ingraham St San Diego CA 92109 Profile DauntlesslDeneau Continued page 75 picks Clamp hold assembly togeth er until epoxy sets up Secure land ing gear leg support plate landing gear strap No 2 x 3/-in screws Follow same steps right landing gear Attach lead-out wires bellcranks see Detail C assemble elevator bellcrank Item 7 throttle bellcrank Item B bolt washers DUAL PERSONAUTY TRAINER GEEMS BEAUTIFUL SUPER CHAMP WS 54 20 - 35 ENGINEs 3 CHANNEL THE BEGINNERS KITT AND EXPERTS TIC Revolutionary snap ss wing eliminates bolts fibber Complete kit $5495 dealer GEMINI MODELS INC PO Soy 1 168 Pussaic NJ 07050 locknut Trim bolt flush nut Thread lead-out wires through lefi wing secure bellcrank assembi lower engine mount bolt anc washers cut off bolt flush tor blind nut Cut off piece A6-in music wire g length 8 throttle linkage Solder clevis link end Drill Y-in hole through leading edge leading edge spacer spar hole lines up outer hole throttle bellcrank inside wing thread unsoldered end through leading edge hole Engage solder link outboard hole throttle bellcrank Item 8 Cut off piece 1/6-in wire length 12 solder clevis link end wire will used elevator pushrod Drill A-in hole through trailing edge wing /2 right wing centerline Widen hole make x Ye-in slot inside wing slide unsoldered end through trailing edge engage solder link elevator bellcrank Glue upper lower leading edge sheets rib leading edges spar caps Glue balsa sheet segments between Ribs B C between Ribs C D Glue spar caps ribs See Detail C Item 16 Glue Vie sheeting upper lower surfaces center section ribs Cut rib cap strips Detail B Item 31 glue upper lower edges ribs Items E F G Sand leading edges shape should blend smoothly leading edge sheeting Make right wing tip A-in balsa block Roughly shape ghw place sanding block final shaping blend tip smoothly wing left wing tip made like sand wich lower part made A-in balsa center pieces balsa top piece Ae balsa Detail B Glue pieces together drill holes eyelets Thread lead-out wires through holes glue tip wing Sand shape Position eyelets glue place tie ends 170 Model Aviation [ REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE Incoeporote J 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm 7ICHANGE TO RECHARG EARL Re lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo $3500 RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI J RC Reference YouwII Read Year Round wont gather dust R/C bookshelf youll Keep too busy workbench lap Because new Radio Control Buyers Guide 8th Edition design ed used year round planning projects locating hardto-find products getting ahad hobby Guide master reference work R/C product formation 8th edition features over 2500 RC Aircraft Cars Boats related products including hundreds new pro ducts recently released Toledo other major R/C shows highly descriptive information illustrated thousands photographs new double-listing format easier-than-ever use Newcomers will find Guide mind-jogging excursion seemingly endless possibilities R/C world wildest machines its devotees Models shown commercially available Get new Radio Control Buyers Guide 8th Edition Its R/C reference book youll read f wires time will done ifter engine installed Final-sand wing remove rough dges fuselage constructed like pro File models deviation nor nal practice installation bass vood reinforcement strip between up per lower fuselage pieces Refer Detail First cut out upper lower fuse age pieces Y-in balsa cut asswood strip Item 20 upper engine mount Item 22 correct lengths 3lue basswood strip lower Fuselage Item 19 Glue upper engine mount upper fuselage Item 18 iure lower surface engine mount flush bottom surface upper fuselage Cut balsa spacer Item 23 glue tin place Position upper fuselage lie lower fuselage Check V-in slot exists between upper fuselage ipacer must enough space stabilizer inserted Cut two round doublers Item 10 X6 plywood Drill A6-in hole through center doubler through lower fuselage Glue doublers asing A6-in wire hold pieces align ment remove wire before glue sets Make tail gear doublers Item 29 X6 plywood glue side lower fuselage glue has dried drill A-in hole front leg tail gear A-in hole tail gear mounting bolt Redrill X6-in hole through center round doublers Also outboard side fuselage drill A6-in hole Y-in deep doubler fuselage last hole located lower aft part outboard doubler will used locate #6 x X-in screw Sand fuselage its final shape Tail surfaces Make stabilizer Item 27 elevators Item 28 fin Item 25 rudder Item 26 A-in balsa Sand parts shape Glue rudder fin rudder trailing edge off set Connect left right eleva tors music wire Item 29 Secure wire elevators epoxy Cut slots elevators stabilizer hinges Insert hinges stabilizer glue place After glue dries slide elevators onto hinges glue place careful get glue hinge pivot areas Install control horn right elevator Assembly Slide stabilizer elevator assembly fuselage slot secure glue Next glue tail cone spacer Item 24 fuselage leaving equal space between elevators spacer Glue fin rudder assembly top fuselage Glue wing fuselage Glue fuselage chin Item 21 lower engine mount wing leading edge Sand rough edges joints glue plywood rein forcements Items 11 12 fuselage epoxy Position engine locate mounting holes Drill A-in holes mounting counter sinking larger holes inboard side blind nuts Position fuel tank drill 42-in mounting holes Install fuel tank retaining wires Bend elevator pushrod aligns appropriate hole elevator horn Screw threaded cotipler threaded link connect link elevator horn Cut elevator pushrod fit threaded coupler Solder pushrod coupler Install engine Screw threaded coupler onto threaded link refer Detail C Connect link engine throttle arm arm half-throttle position throttle bellcrank neutral position bend throttle pushrod align coupler Cut pushrod solder coupler Slide brass eyelets over lead-out wires glue wing tip epoxy Move throttle arm fullthrottle position Holding arm position tie ends lead-out wires shown Sheet 1 plans Hook installation Fabricate hook November1984 171 See Hobby Dealer dealer send $695 plus $200 postage handling 1BOYNTON & ASSOCIATES INC CLIFTON HOUSE CUFTON VA 22024 NEW MK 2 H & K SUPER STARTERS Look before leap original still best Has new larger clutch fully supported applications 90 day warranty new lower prices MODEL 1 Q-35 Q-50 ZENOAH ROPER MODEL 2Super Hustler MAG II MODEL 3Tartan Twin Super Twin Glow Manufactured Distributed P K Products PO Box 62260 Hayward CA 945400 415 581-4277 Add $150 postage handling Item 13 shown Sheet 1 plans Install hook fuselage shown Detail Install #6 x %-in screw A6-in hole drilled earlierscrew until protrudes 1A-in screw will used stop hook down position Wrap solder length A2-in music wire elevator pushrod bend hold tail hook up position Trim end wire hook will drop elevator full-down position see Detail B Item 20 Loop rubberband around hook engage screw extending round doubler Engage hook elevator pushrod recheck will drop full-down elevator Finishing Remove engine hook tail gear Cover wings silkspan equivalent material Paint upper part fuselage blue-gray lower part light gray plan shows approximate line separates colors upper part wing blue-gray bottom light gray canopy windows white Apply white fuselage lettering star insignias latter red white blue colors Apply 1 oz stick-on lead weight underside right wing tip stall engine fuel tank hook tail gear Check model balances within / center gravity CG loca tion shown Sheet 1 plans Apply nose tail weight needed achieve desired balance point Flying little Dauntless very stable flight lifts off deck very quickly settles down smooth high-speed flight Speeds 60 70 mph easily attained have flown Dauntless 70 mph take first place club contests Slowing down Dauntless lowspeed flight quite uneventful little ship requires small amount upelevator hold reduced speed practice can really get nose up correct throttle control being applied Landing best part Just pick Z495 $3295 $3995 Dealers inquiries invited spot chop throttle let settle Its easy make three-point landings model hope enjoy flying 15 Dauntless much have Happy landings ScannerlMarez Continued page 79 quickly possible crystals damaged soldering de-soldering like electronic components dont really like long sustained applica tions high temperatures Fortunately pins installed crystals cut off can re-use sockets after cleaning solder off Assuming interested couple new frequencies may opt solder new crystals point However interest cludes sockets should first talk about crystals little bit First former two types sockets available has same pin diameter spacing crystals will drop right hole printed circuit board Another has wide flat pins wider spacing will Both available Kraft Systems boardmounted type need point Part No 120-074 $300 other type use will described later Part No 120-141K $100 Small crystal sockets such something rarity dont bother looking Radio Shack small electronics supply houses Back crystals again recom mendation get Airtronics insist different source need HC-25/U type accept HC 18/U same size has long wires instead pins unless definitely intend solder Airtronics crystals come nice neat molded plastic cap identified colors channel numbers tremendous help especially have decided plug-in field changes ever cap too wide allow seven plug-in crystals space provided PC board can install sockets ProTt MO MOLDED STRONG -METAL FRAMEGREAT GIFT 5 FOAM FILLED Transmitter ection Case X PRICE $35 Include Shipping & Kondling US CA re odd 6% Send check yr 0 5 ERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 other position four plug-ins enough satisfy requirements can trim lip sides th molded cap narrows enough allow seven side-by-side crystals However previous men tion plug-in crystals will still need remove top cover whenever fre quency change required too slow involved constant changes required scanner ing used active contest situa tion will get worse new frequencies phased have developed ultimate update will now described Full-house update Basically will stall support-mounted crystal socket board high enough permit easy crystal identification changes clear plastic window will provided checking installed crystals new board being larger space initially used original crystal circuitry will require relocation speaker antenna mount Dont put off scary-sounding things recommended changes still mainly mechanical no volved electronics changes being required Start taking off top bottom covers rear panel Unsolder wires speaker antenna connec tor remove 12-volt power input jack panel Using small iron solder wick remove seven crystals board clean solder completely off pins best done applying bit paste solder flux heat wiping off melt ed solder rag careful leave solder bridges board dur ing desoldening operation make crystal socket board youll need piece 1-in spacing elec tronic prototype perforated board prefer ably epoxy-based type cheaper phenolic board acceptable though does drill cut cleanly epoxy strong Cut size 14 x 32 holes shown photo Referring again photo note locations new holes drill indicated Note 14 crystal 172 Model Aviation
Edition: Model Aviation - 1984/11
Page Numbers: 72, 73, 74, 75, 170, 171, 172
Profile Dauntless SBD-3 THE IDEA FOR 15-sized Profile Carrier came club members called during early month 1982 concerned so-called beginners Carrier event Profile Carrier grown too complicated Hot engines line sliders ailerons flaps rudders often graced mechanisms could make Rube Goldberg envious Dave concerned club mem ber suggested new beginning Carrier event 15 engine jumped chance design model sim plicity decided movable components during flight would throttle elevators tail hook first model HR 15-powered Wildcat flown 5214-ft lines achieved top speed 60 mph Most members model club Rocky Mountain Aeromodelers have flown airplane Top completed model ready flight ltweighsin at24oz LeftThe l5Dauntless low-speed fllghtwlth tail hook down lttakesonlyasmallamountofup-ele vator hold model reduced speed Its very stable flier lIfting off deck quickly smooth high-speed flight before going low-speed phase unanimous comment Hey fun could hardly feel 15 Carrier airplane end lines less 7 lb pull 60 mph took very little effort fly Talk about economy could make three flights same amount fuel used flight 35-powered Carrier airplane Also model built about half cost 15 Wildcat experience club established following rules 15 Profile Navy Carrier 1 Use existing Profile Navy Carrier rules except specified following rules 2 Engine 1525 cu maximum 3 Line length52 ft 0 52 ft 6 4 Minimum line diameter012 stranded 010 solid 5 Scale bonus pointsnone 6 Minimum wing areanone 7 Maximum high speed scoring 70 mph 8 Permissible movable components throttle hook elevator 9 Time model eight laps lieu landing hook up position left down position right released up position quick down-elevator control movement details see pictures further clarified authors excellent exploded-view drawings seven rules decided next model should 1 Have wing area 160 sq 2 Have low wing throttle control difficult route around fuel tank mid-wing design 3 replica actual Navy carrier airplane After searching through information about World War II carrier air craft selected favorite air planes Douglas SBD-3 Dauntless span 22A model would have wing area 161 sq has low wing Douglas Dauntless Navys principal carrier-based dive bomber dur ing World War II tack Pearl Harbor until V-J day airplane responsible sinking 18 warships six carriers over 300000 tons enemy shipping Also Dauntless gunners shot down 138 Japanese planes fewer 80 Dauntlesses shot down Japanese aircraft wars end US carrier aircraft operational Pearl Harbor still service Altogether 5321 Dauntlesses built Douglas Construction model basically volves conventional construction techniques Only method mounting landing gear control bellcranks corporate somewhat novel practices recommend components model built following order land ing gear wing fuselage empennage An easy way transfer various pieces such ribs doublers spars etc plans patterns wood starts making Xerox copies compo nents Cut out Xeroxed patterns glue applicable balsa plywood pieces rubber cement After components have cut out can peel off paper templates best part havent cut up plans concept 15-powered Control Line Profile Carrier club competition has successful Rocky Mountain Aeromodelers due large part simplicity systems allowed models have appealing ap pearance well see exampleE Gerry Deneau Left direct attention engine fuel tank Installation view Youll want strong 15 engine carburetor Right jig eases building landing gear left gear leg shown place right gear leg uses opposite side jig November 1984 73 ____________5 ENGINEI 02 WEIGHT -~FRONT SPAR LEFT LER3/32 PLOWOODI Il/INPL H ____B __ ______________________________________________3/402 O LEADING EDGES4 IMARE FROM BALSAB0 SN. I/16B I/IS NOTCHES FOR RIBS ~ BALSA N*1/16 PLYWOOD 7''~( LG SOPPORT PLATE ELCOATOR BELLCRANR- .E 025 MUSIC WIRE~-SOLDER TO HOOK HOOK MUSIC WIRCI G THROTTLEBELLCRANHI/HS I/B SPAR CAPS BARE FROM 3 BELLCHANHSI B I/IS FOR S-S HANDLELG STRAP 2 I/H FOR ROBEHTDC Il/B WI NH DOABLER ______ I/IN PLOWOODI -130—I/W PLYWOOD I1/16 WHEELNO60 3/4 SCREWRIBS A-H S/BO S/B HARD MAPLE/BD 3/B BASSWOOD10 ENGINE MOUNTS S/BDOUBLER Z § J7I7AI ___Il/H BALSAI WHITE LETTERS______ - E-___ -___ CONNECT ELEVATORS SHEET OF DI __________AlL WHE EL _______-DAUNTLESS _________WING DPAN2BTD WING AREA 161 DOIS PROFILE CARRIER EADIND SPACER_________DEDIGNED B DRAWN BY GERALD DENEAA Landing gear might think odd build landing gear first reason main landing gear must stalled during wing construction Refer Sheet 1 plans detail Item 6 dimensions main landing gear made %2-in music wire sure slide aileron horn bearing onto wire before making final bend 1 A-in leg horn bearing permits landing gear incorporate efficient torsion bar action flexing loads ab sorbed twisting action horizontal part gear Make left main gear first construct right gear mirror op posite accurate landing gear bends use jig Refer Sheet 1 plans detail Item 9 dimensions tail gear Use A6-in music wire loop bolt can made bending wire around nail held vise nail should same diameter 2-56 bolt Solder inboard washer wire install A-in wheel solder Profile Dauntless structure has completed covered its now ready painting decorating Balsa ply construction typical profile CL models retaining washer wing complicated part model However following se quence will simplify its construction Make two Ribs through H holes bellcrank lead-out wires needed set ribs Make ribs sheet balsa Ribs B through H A6 balsa Make landing gear spar Item 3 3A2 plywood two doublers Item 4 A6 plywood two spacers Item 15 AD balsa Make leading edge spacer Item 2 A-in balsa Make two leading edges Item 1 left right 3A-in balsa A6-in notches used simplify positioning wing ribs shape leading edges time Retain rectangular cross section until final stages wing assembly Make lower engine mount Item 14 hard maple Drill A-in hole bellcrank mounting bolt Countersink install 6-32 blind nut Make landing gear support plate Item 5 A6 plywood Make trailing edges AA x 1-in balsa strips Glue outboard trailing edges center section trailing edge Make two important step assembling straight wing hold rib alignment strongly suggest use A-justo-jig Great Planes wing jig similar device handmade jig also does job very well sure 74 Model Aviation Full-Size Plans Available. See Page 180 B/B A I/B BALSA 1/16 BALSA032 MUSIC WIRETHREASES LINK 1/16 THREADED COUPLER SOLDER TO PUSOROSI3/5 UALSA 1/16 BALSA CONTROL MORN 25 / U PLYWOOD I/lU PLYWOOD-025 MUSIC WIRE I/3D BALSA I/lU BALSA 1/16 BALSA MAIN 3/32 BRASS NO2 MASHER SOLDER ______________________ /10 PLYWOQO lU WHEEL COLLARS 3/B U 3/B HARD MAPLE~ISPLYWOOD @ 3/B BALSA I/B 0 I/H BALSA U DO BLIND NOT NO B FLAT WASHES ~---~--lAO NEEDEDI N ROTTLE BELLORANK ELEVATOR PUORROD s11/16 MUSIC WIRE K WASHERS~ SOLDER LINKS SPARK BREADED COOP ER \~---Am ELEVATOR BELLCRANB SOLDER SHROD U P_WOOD~J5_________ HREADEDNB6-SD U I/O BOLT ITRIM FLUSH ROTI AND NO STRA-DETAILi.THROTTLE PUORROS 11/16 THREADED ROD NO 20DB SCREWS DETAIL B DETAIL IBMEET DO DI DAUNTLESS DRAWN BY SERALO DENEAUSBD3 chord line rib same distance above working surface Glue lower engine mount Item 22 root ribs Item Locate ribs proper positions glue trailing edges Position front spar Item 3 glue center section ribs Items through D Glue leading edge spacer Item 2 front spar Position left leading edge Item 1 wing ribs serted slots Glue place Repeat right leading edge Position glue upper spar caps place Turn wing upside down glue lower spar cap ribs Glue leading edge segments Item 17 leading edges wing center section Glue landing gear support plates Item 5 front spar ribs Items B C lower spar cap plates fit notches bottom edge front spar lay top lower spar cap Before proceeding leading edge sheeting install landing gear bellcranks wing control system Temporarily position left gear bearing horn shoulder presses against lower edge spar board end horn touching board rib Item C Refer Detail C Check spacer Item 15 fits tween horn rib Item D Remove landing gear glue spacer place Repeat right gear spacer Reposition left gear horn against spar inboard landing gear leg laying support plate Item 5 place doubler Item 4 aft side horn spacer Drill two XH-in holes through doubler horn spar part way leading edge Temporarily insert toothpicks holes back side Enlarge holes needed permit toothpicks penetrate leading edge Withdraw toothpicks doubler landing gear Apply epoxy glue both sides horn front side doub ler Reposition landing gear horn spar place doubler against horn spacer insert toothContinued page 170 Left article written members Rocky Mountain Aeromodeers built five Profile Dauntiessestwo shown Right author gerry Deneau first 15 Carrier model Gruman Wildcat L second Dauntless featured November 1984 75 CL CombatlJohnson Continued page 168 pie turns rich-lean rather usual one-eighth turn During Saturday night repairing model used made six matches chance use epoxy injector Chuck Rudner Myles Lawrence made Its just regular syringe some brass tubing stuck tip sharpened will slice soft wood foam Its easy mix epoxy equal amounts because have ounce cc graduations side also found microwave superior old hot-water trick comes warming epoxy itll set faster put whole thing Howard Rushs oven worked fine Cleanup pretty easy because epoxy used didnt stick plastic syringe rubber plunger Make sure brass tube clear epoxy before sets can see revolution model repair during matches Envision pit crew premixed portions epoxy kept cooler model hits ground 10cc portion rushed microwave being run generator much time left match mechanic sets control Roast 10 seconds later epoxy ready go 25 seconds later 5-minute epoxy has dried engine being started Well above may work too well have Howard Rush story everyone Howard will representing USA Combat team year besides some exotic FAI stuff has some equally-exotic Fast Combat materi al choice propeller Y&O cast carbon fibre Mind no thinned down Y&O real McCoy measure ruler rather calipers Just confound everyone models very fast using ratherFifties-appearing prop Howard crashed matches Rich Lopez couldnt get prop off couldnt get off during match after match rest day theorized heat crank must have glued prop together Lopez suggested using chisel maybe just sticking whole thing microwave seeing what would happen Just after midnight Rich succeeded getting remains prop off using gear puller same thing can happen some plastic-type props break off cleanly thrust washer Noth ing short miracle would have saved us good water-pump pliers might help Something did think about after match lost leaving hub place just putting another prop since engine Brasher crank would have enough room second prop washer left off received some literature USE 15 model engine see photo looks very interesting another good 15 couldnt hurt claim 85 horse power very light weight 114 grams four ounces cylinder barrel has intergral cooling fins much like old K&D greenheads exhaust exits right side about midway between sideport engine rearport crank 10mm diameter plenty robust note received said would some engines World Championships address USE Floridadreef 17 3565 AM Utrecht Neth erlands should much engine after World Championships Charlie Johnson 3716 Ingraham St San Diego CA 92109 Profile DauntlesslDeneau Continued page 75 picks Clamp hold assembly togeth er until epoxy sets up Secure land ing gear leg support plate landing gear strap No 2 x 3/-in screws Follow same steps right landing gear Attach lead-out wires bellcranks see Detail C assemble elevator bellcrank Item 7 throttle bellcrank Item B bolt washers DUAL PERSONAUTY TRAINER GEEMS BEAUTIFUL SUPER CHAMP WS 54 20 - 35 ENGINEs 3 CHANNEL THE BEGINNERS KITT AND EXPERTS TIC Revolutionary snap ss wing eliminates bolts fibber Complete kit $5495 dealer GEMINI MODELS INC PO Soy 1 168 Pussaic NJ 07050 locknut Trim bolt flush nut Thread lead-out wires through lefi wing secure bellcrank assembi lower engine mount bolt anc washers cut off bolt flush tor blind nut Cut off piece A6-in music wire g length 8 throttle linkage Solder clevis link end Drill Y-in hole through leading edge leading edge spacer spar hole lines up outer hole throttle bellcrank inside wing thread unsoldered end through leading edge hole Engage solder link outboard hole throttle bellcrank Item 8 Cut off piece 1/6-in wire length 12 solder clevis link end wire will used elevator pushrod Drill A-in hole through trailing edge wing /2 right wing centerline Widen hole make x Ye-in slot inside wing slide unsoldered end through trailing edge engage solder link elevator bellcrank Glue upper lower leading edge sheets rib leading edges spar caps Glue balsa sheet segments between Ribs B C between Ribs C D Glue spar caps ribs See Detail C Item 16 Glue Vie sheeting upper lower surfaces center section ribs Cut rib cap strips Detail B Item 31 glue upper lower edges ribs Items E F G Sand leading edges shape should blend smoothly leading edge sheeting Make right wing tip A-in balsa block Roughly shape ghw place sanding block final shaping blend tip smoothly wing left wing tip made like sand wich lower part made A-in balsa center pieces balsa top piece Ae balsa Detail B Glue pieces together drill holes eyelets Thread lead-out wires through holes glue tip wing Sand shape Position eyelets glue place tie ends 170 Model Aviation [ REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE Incoeporote J 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm 7ICHANGE TO RECHARG EARL Re lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo $3500 RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI J RC Reference YouwII Read Year Round wont gather dust R/C bookshelf youll Keep too busy workbench lap Because new Radio Control Buyers Guide 8th Edition design ed used year round planning projects locating hardto-find products getting ahad hobby Guide master reference work R/C product formation 8th edition features over 2500 RC Aircraft Cars Boats related products including hundreds new pro ducts recently released Toledo other major R/C shows highly descriptive information illustrated thousands photographs new double-listing format easier-than-ever use Newcomers will find Guide mind-jogging excursion seemingly endless possibilities R/C world wildest machines its devotees Models shown commercially available Get new Radio Control Buyers Guide 8th Edition Its R/C reference book youll read f wires time will done ifter engine installed Final-sand wing remove rough dges fuselage constructed like pro File models deviation nor nal practice installation bass vood reinforcement strip between up per lower fuselage pieces Refer Detail First cut out upper lower fuse age pieces Y-in balsa cut asswood strip Item 20 upper engine mount Item 22 correct lengths 3lue basswood strip lower Fuselage Item 19 Glue upper engine mount upper fuselage Item 18 iure lower surface engine mount flush bottom surface upper fuselage Cut balsa spacer Item 23 glue tin place Position upper fuselage lie lower fuselage Check V-in slot exists between upper fuselage ipacer must enough space stabilizer inserted Cut two round doublers Item 10 X6 plywood Drill A6-in hole through center doubler through lower fuselage Glue doublers asing A6-in wire hold pieces align ment remove wire before glue sets Make tail gear doublers Item 29 X6 plywood glue side lower fuselage glue has dried drill A-in hole front leg tail gear A-in hole tail gear mounting bolt Redrill X6-in hole through center round doublers Also outboard side fuselage drill A6-in hole Y-in deep doubler fuselage last hole located lower aft part outboard doubler will used locate #6 x X-in screw Sand fuselage its final shape Tail surfaces Make stabilizer Item 27 elevators Item 28 fin Item 25 rudder Item 26 A-in balsa Sand parts shape Glue rudder fin rudder trailing edge off set Connect left right eleva tors music wire Item 29 Secure wire elevators epoxy Cut slots elevators stabilizer hinges Insert hinges stabilizer glue place After glue dries slide elevators onto hinges glue place careful get glue hinge pivot areas Install control horn right elevator Assembly Slide stabilizer elevator assembly fuselage slot secure glue Next glue tail cone spacer Item 24 fuselage leaving equal space between elevators spacer Glue fin rudder assembly top fuselage Glue wing fuselage Glue fuselage chin Item 21 lower engine mount wing leading edge Sand rough edges joints glue plywood rein forcements Items 11 12 fuselage epoxy Position engine locate mounting holes Drill A-in holes mounting counter sinking larger holes inboard side blind nuts Position fuel tank drill 42-in mounting holes Install fuel tank retaining wires Bend elevator pushrod aligns appropriate hole elevator horn Screw threaded cotipler threaded link connect link elevator horn Cut elevator pushrod fit threaded coupler Solder pushrod coupler Install engine Screw threaded coupler onto threaded link refer Detail C Connect link engine throttle arm arm half-throttle position throttle bellcrank neutral position bend throttle pushrod align coupler Cut pushrod solder coupler Slide brass eyelets over lead-out wires glue wing tip epoxy Move throttle arm fullthrottle position Holding arm position tie ends lead-out wires shown Sheet 1 plans Hook installation Fabricate hook November1984 171 See Hobby Dealer dealer send $695 plus $200 postage handling 1BOYNTON & ASSOCIATES INC CLIFTON HOUSE CUFTON VA 22024 NEW MK 2 H & K SUPER STARTERS Look before leap original still best Has new larger clutch fully supported applications 90 day warranty new lower prices MODEL 1 Q-35 Q-50 ZENOAH ROPER MODEL 2Super Hustler MAG II MODEL 3Tartan Twin Super Twin Glow Manufactured Distributed P K Products PO Box 62260 Hayward CA 945400 415 581-4277 Add $150 postage handling Item 13 shown Sheet 1 plans Install hook fuselage shown Detail Install #6 x %-in screw A6-in hole drilled earlierscrew until protrudes 1A-in screw will used stop hook down position Wrap solder length A2-in music wire elevator pushrod bend hold tail hook up position Trim end wire hook will drop elevator full-down position see Detail B Item 20 Loop rubberband around hook engage screw extending round doubler Engage hook elevator pushrod recheck will drop full-down elevator Finishing Remove engine hook tail gear Cover wings silkspan equivalent material Paint upper part fuselage blue-gray lower part light gray plan shows approximate line separates colors upper part wing blue-gray bottom light gray canopy windows white Apply white fuselage lettering star insignias latter red white blue colors Apply 1 oz stick-on lead weight underside right wing tip stall engine fuel tank hook tail gear Check model balances within / center gravity CG loca tion shown Sheet 1 plans Apply nose tail weight needed achieve desired balance point Flying little Dauntless very stable flight lifts off deck very quickly settles down smooth high-speed flight Speeds 60 70 mph easily attained have flown Dauntless 70 mph take first place club contests Slowing down Dauntless lowspeed flight quite uneventful little ship requires small amount upelevator hold reduced speed practice can really get nose up correct throttle control being applied Landing best part Just pick Z495 $3295 $3995 Dealers inquiries invited spot chop throttle let settle Its easy make three-point landings model hope enjoy flying 15 Dauntless much have Happy landings ScannerlMarez Continued page 79 quickly possible crystals damaged soldering de-soldering like electronic components dont really like long sustained applica tions high temperatures Fortunately pins installed crystals cut off can re-use sockets after cleaning solder off Assuming interested couple new frequencies may opt solder new crystals point However interest cludes sockets should first talk about crystals little bit First former two types sockets available has same pin diameter spacing crystals will drop right hole printed circuit board Another has wide flat pins wider spacing will Both available Kraft Systems boardmounted type need point Part No 120-074 $300 other type use will described later Part No 120-141K $100 Small crystal sockets such something rarity dont bother looking Radio Shack small electronics supply houses Back crystals again recom mendation get Airtronics insist different source need HC-25/U type accept HC 18/U same size has long wires instead pins unless definitely intend solder Airtronics crystals come nice neat molded plastic cap identified colors channel numbers tremendous help especially have decided plug-in field changes ever cap too wide allow seven plug-in crystals space provided PC board can install sockets ProTt MO MOLDED STRONG -METAL FRAMEGREAT GIFT 5 FOAM FILLED Transmitter ection Case X PRICE $35 Include Shipping & Kondling US CA re odd 6% Send check yr 0 5 ERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 other position four plug-ins enough satisfy requirements can trim lip sides th molded cap narrows enough allow seven side-by-side crystals However previous men tion plug-in crystals will still need remove top cover whenever fre quency change required too slow involved constant changes required scanner ing used active contest situa tion will get worse new frequencies phased have developed ultimate update will now described Full-house update Basically will stall support-mounted crystal socket board high enough permit easy crystal identification changes clear plastic window will provided checking installed crystals new board being larger space initially used original crystal circuitry will require relocation speaker antenna mount Dont put off scary-sounding things recommended changes still mainly mechanical no volved electronics changes being required Start taking off top bottom covers rear panel Unsolder wires speaker antenna connec tor remove 12-volt power input jack panel Using small iron solder wick remove seven crystals board clean solder completely off pins best done applying bit paste solder flux heat wiping off melt ed solder rag careful leave solder bridges board dur ing desoldening operation make crystal socket board youll need piece 1-in spacing elec tronic prototype perforated board prefer ably epoxy-based type cheaper phenolic board acceptable though does drill cut cleanly epoxy strong Cut size 14 x 32 holes shown photo Referring again photo note locations new holes drill indicated Note 14 crystal 172 Model Aviation
Edition: Model Aviation - 1984/11
Page Numbers: 72, 73, 74, 75, 170, 171, 172
Profile Dauntless SBD-3 THE IDEA FOR 15-sized Profile Carrier came club members called during early month 1982 concerned so-called beginners Carrier event Profile Carrier grown too complicated Hot engines line sliders ailerons flaps rudders often graced mechanisms could make Rube Goldberg envious Dave concerned club mem ber suggested new beginning Carrier event 15 engine jumped chance design model sim plicity decided movable components during flight would throttle elevators tail hook first model HR 15-powered Wildcat flown 5214-ft lines achieved top speed 60 mph Most members model club Rocky Mountain Aeromodelers have flown airplane Top completed model ready flight ltweighsin at24oz LeftThe l5Dauntless low-speed fllghtwlth tail hook down lttakesonlyasmallamountofup-ele vator hold model reduced speed Its very stable flier lIfting off deck quickly smooth high-speed flight before going low-speed phase unanimous comment Hey fun could hardly feel 15 Carrier airplane end lines less 7 lb pull 60 mph took very little effort fly Talk about economy could make three flights same amount fuel used flight 35-powered Carrier airplane Also model built about half cost 15 Wildcat experience club established following rules 15 Profile Navy Carrier 1 Use existing Profile Navy Carrier rules except specified following rules 2 Engine 1525 cu maximum 3 Line length52 ft 0 52 ft 6 4 Minimum line diameter012 stranded 010 solid 5 Scale bonus pointsnone 6 Minimum wing areanone 7 Maximum high speed scoring 70 mph 8 Permissible movable components throttle hook elevator 9 Time model eight laps lieu landing hook up position left down position right released up position quick down-elevator control movement details see pictures further clarified authors excellent exploded-view drawings seven rules decided next model should 1 Have wing area 160 sq 2 Have low wing throttle control difficult route around fuel tank mid-wing design 3 replica actual Navy carrier airplane After searching through information about World War II carrier air craft selected favorite air planes Douglas SBD-3 Dauntless span 22A model would have wing area 161 sq has low wing Douglas Dauntless Navys principal carrier-based dive bomber dur ing World War II tack Pearl Harbor until V-J day airplane responsible sinking 18 warships six carriers over 300000 tons enemy shipping Also Dauntless gunners shot down 138 Japanese planes fewer 80 Dauntlesses shot down Japanese aircraft wars end US carrier aircraft operational Pearl Harbor still service Altogether 5321 Dauntlesses built Douglas Construction model basically volves conventional construction techniques Only method mounting landing gear control bellcranks corporate somewhat novel practices recommend components model built following order land ing gear wing fuselage empennage An easy way transfer various pieces such ribs doublers spars etc plans patterns wood starts making Xerox copies compo nents Cut out Xeroxed patterns glue applicable balsa plywood pieces rubber cement After components have cut out can peel off paper templates best part havent cut up plans concept 15-powered Control Line Profile Carrier club competition has successful Rocky Mountain Aeromodelers due large part simplicity systems allowed models have appealing ap pearance well see exampleE Gerry Deneau Left direct attention engine fuel tank Installation view Youll want strong 15 engine carburetor Right jig eases building landing gear left gear leg shown place right gear leg uses opposite side jig November 1984 73 ____________5 ENGINEI 02 WEIGHT -~FRONT SPAR LEFT LER3/32 PLOWOODI Il/INPL H ____B __ ______________________________________________3/402 O LEADING EDGES4 IMARE FROM BALSAB0 SN. I/16B I/IS NOTCHES FOR RIBS ~ BALSA N*1/16 PLYWOOD 7''~( LG SOPPORT PLATE ELCOATOR BELLCRANR- .E 025 MUSIC WIRE~-SOLDER TO HOOK HOOK MUSIC WIRCI G THROTTLEBELLCRANHI/HS I/B SPAR CAPS BARE FROM 3 BELLCHANHSI B I/IS FOR S-S HANDLELG STRAP 2 I/H FOR ROBEHTDC Il/B WI NH DOABLER ______ I/IN PLOWOODI -130—I/W PLYWOOD I1/16 WHEELNO60 3/4 SCREWRIBS A-H S/BO S/B HARD MAPLE/BD 3/B BASSWOOD10 ENGINE MOUNTS S/BDOUBLER Z § J7I7AI ___Il/H BALSAI WHITE LETTERS______ - E-___ -___ CONNECT ELEVATORS SHEET OF DI __________AlL WHE EL _______-DAUNTLESS _________WING DPAN2BTD WING AREA 161 DOIS PROFILE CARRIER EADIND SPACER_________DEDIGNED B DRAWN BY GERALD DENEAA Landing gear might think odd build landing gear first reason main landing gear must stalled during wing construction Refer Sheet 1 plans detail Item 6 dimensions main landing gear made %2-in music wire sure slide aileron horn bearing onto wire before making final bend 1 A-in leg horn bearing permits landing gear incorporate efficient torsion bar action flexing loads ab sorbed twisting action horizontal part gear Make left main gear first construct right gear mirror op posite accurate landing gear bends use jig Refer Sheet 1 plans detail Item 9 dimensions tail gear Use A6-in music wire loop bolt can made bending wire around nail held vise nail should same diameter 2-56 bolt Solder inboard washer wire install A-in wheel solder Profile Dauntless structure has completed covered its now ready painting decorating Balsa ply construction typical profile CL models retaining washer wing complicated part model However following se quence will simplify its construction Make two Ribs through H holes bellcrank lead-out wires needed set ribs Make ribs sheet balsa Ribs B through H A6 balsa Make landing gear spar Item 3 3A2 plywood two doublers Item 4 A6 plywood two spacers Item 15 AD balsa Make leading edge spacer Item 2 A-in balsa Make two leading edges Item 1 left right 3A-in balsa A6-in notches used simplify positioning wing ribs shape leading edges time Retain rectangular cross section until final stages wing assembly Make lower engine mount Item 14 hard maple Drill A-in hole bellcrank mounting bolt Countersink install 6-32 blind nut Make landing gear support plate Item 5 A6 plywood Make trailing edges AA x 1-in balsa strips Glue outboard trailing edges center section trailing edge Make two important step assembling straight wing hold rib alignment strongly suggest use A-justo-jig Great Planes wing jig similar device handmade jig also does job very well sure 74 Model Aviation Full-Size Plans Available. See Page 180 B/B A I/B BALSA 1/16 BALSA032 MUSIC WIRETHREASES LINK 1/16 THREADED COUPLER SOLDER TO PUSOROSI3/5 UALSA 1/16 BALSA CONTROL MORN 25 / U PLYWOOD I/lU PLYWOOD-025 MUSIC WIRE I/3D BALSA I/lU BALSA 1/16 BALSA MAIN 3/32 BRASS NO2 MASHER SOLDER ______________________ /10 PLYWOQO lU WHEEL COLLARS 3/B U 3/B HARD MAPLE~ISPLYWOOD @ 3/B BALSA I/B 0 I/H BALSA U DO BLIND NOT NO B FLAT WASHES ~---~--lAO NEEDEDI N ROTTLE BELLORANK ELEVATOR PUORROD s11/16 MUSIC WIRE K WASHERS~ SOLDER LINKS SPARK BREADED COOP ER \~---Am ELEVATOR BELLCRANB SOLDER SHROD U P_WOOD~J5_________ HREADEDNB6-SD U I/O BOLT ITRIM FLUSH ROTI AND NO STRA-DETAILi.THROTTLE PUORROS 11/16 THREADED ROD NO 20DB SCREWS DETAIL B DETAIL IBMEET DO DI DAUNTLESS DRAWN BY SERALO DENEAUSBD3 chord line rib same distance above working surface Glue lower engine mount Item 22 root ribs Item Locate ribs proper positions glue trailing edges Position front spar Item 3 glue center section ribs Items through D Glue leading edge spacer Item 2 front spar Position left leading edge Item 1 wing ribs serted slots Glue place Repeat right leading edge Position glue upper spar caps place Turn wing upside down glue lower spar cap ribs Glue leading edge segments Item 17 leading edges wing center section Glue landing gear support plates Item 5 front spar ribs Items B C lower spar cap plates fit notches bottom edge front spar lay top lower spar cap Before proceeding leading edge sheeting install landing gear bellcranks wing control system Temporarily position left gear bearing horn shoulder presses against lower edge spar board end horn touching board rib Item C Refer Detail C Check spacer Item 15 fits tween horn rib Item D Remove landing gear glue spacer place Repeat right gear spacer Reposition left gear horn against spar inboard landing gear leg laying support plate Item 5 place doubler Item 4 aft side horn spacer Drill two XH-in holes through doubler horn spar part way leading edge Temporarily insert toothpicks holes back side Enlarge holes needed permit toothpicks penetrate leading edge Withdraw toothpicks doubler landing gear Apply epoxy glue both sides horn front side doub ler Reposition landing gear horn spar place doubler against horn spacer insert toothContinued page 170 Left article written members Rocky Mountain Aeromodeers built five Profile Dauntiessestwo shown Right author gerry Deneau first 15 Carrier model Gruman Wildcat L second Dauntless featured November 1984 75 CL CombatlJohnson Continued page 168 pie turns rich-lean rather usual one-eighth turn During Saturday night repairing model used made six matches chance use epoxy injector Chuck Rudner Myles Lawrence made Its just regular syringe some brass tubing stuck tip sharpened will slice soft wood foam Its easy mix epoxy equal amounts because have ounce cc graduations side also found microwave superior old hot-water trick comes warming epoxy itll set faster put whole thing Howard Rushs oven worked fine Cleanup pretty easy because epoxy used didnt stick plastic syringe rubber plunger Make sure brass tube clear epoxy before sets can see revolution model repair during matches Envision pit crew premixed portions epoxy kept cooler model hits ground 10cc portion rushed microwave being run generator much time left match mechanic sets control Roast 10 seconds later epoxy ready go 25 seconds later 5-minute epoxy has dried engine being started Well above may work too well have Howard Rush story everyone Howard will representing USA Combat team year besides some exotic FAI stuff has some equally-exotic Fast Combat materi al choice propeller Y&O cast carbon fibre Mind no thinned down Y&O real McCoy measure ruler rather calipers Just confound everyone models very fast using ratherFifties-appearing prop Howard crashed matches Rich Lopez couldnt get prop off couldnt get off during match after match rest day theorized heat crank must have glued prop together Lopez suggested using chisel maybe just sticking whole thing microwave seeing what would happen Just after midnight Rich succeeded getting remains prop off using gear puller same thing can happen some plastic-type props break off cleanly thrust washer Noth ing short miracle would have saved us good water-pump pliers might help Something did think about after match lost leaving hub place just putting another prop since engine Brasher crank would have enough room second prop washer left off received some literature USE 15 model engine see photo looks very interesting another good 15 couldnt hurt claim 85 horse power very light weight 114 grams four ounces cylinder barrel has intergral cooling fins much like old K&D greenheads exhaust exits right side about midway between sideport engine rearport crank 10mm diameter plenty robust note received said would some engines World Championships address USE Floridadreef 17 3565 AM Utrecht Neth erlands should much engine after World Championships Charlie Johnson 3716 Ingraham St San Diego CA 92109 Profile DauntlesslDeneau Continued page 75 picks Clamp hold assembly togeth er until epoxy sets up Secure land ing gear leg support plate landing gear strap No 2 x 3/-in screws Follow same steps right landing gear Attach lead-out wires bellcranks see Detail C assemble elevator bellcrank Item 7 throttle bellcrank Item B bolt washers DUAL PERSONAUTY TRAINER GEEMS BEAUTIFUL SUPER CHAMP WS 54 20 - 35 ENGINEs 3 CHANNEL THE BEGINNERS KITT AND EXPERTS TIC Revolutionary snap ss wing eliminates bolts fibber Complete kit $5495 dealer GEMINI MODELS INC PO Soy 1 168 Pussaic NJ 07050 locknut Trim bolt flush nut Thread lead-out wires through lefi wing secure bellcrank assembi lower engine mount bolt anc washers cut off bolt flush tor blind nut Cut off piece A6-in music wire g length 8 throttle linkage Solder clevis link end Drill Y-in hole through leading edge leading edge spacer spar hole lines up outer hole throttle bellcrank inside wing thread unsoldered end through leading edge hole Engage solder link outboard hole throttle bellcrank Item 8 Cut off piece 1/6-in wire length 12 solder clevis link end wire will used elevator pushrod Drill A-in hole through trailing edge wing /2 right wing centerline Widen hole make x Ye-in slot inside wing slide unsoldered end through trailing edge engage solder link elevator bellcrank Glue upper lower leading edge sheets rib leading edges spar caps Glue balsa sheet segments between Ribs B C between Ribs C D Glue spar caps ribs See Detail C Item 16 Glue Vie sheeting upper lower surfaces center section ribs Cut rib cap strips Detail B Item 31 glue upper lower edges ribs Items E F G Sand leading edges shape should blend smoothly leading edge sheeting Make right wing tip A-in balsa block Roughly shape ghw place sanding block final shaping blend tip smoothly wing left wing tip made like sand wich lower part made A-in balsa center pieces balsa top piece Ae balsa Detail B Glue pieces together drill holes eyelets Thread lead-out wires through holes glue tip wing Sand shape Position eyelets glue place tie ends 170 Model Aviation [ REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE Incoeporote J 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm 7ICHANGE TO RECHARG EARL Re lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo $3500 RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI J RC Reference YouwII Read Year Round wont gather dust R/C bookshelf youll Keep too busy workbench lap Because new Radio Control Buyers Guide 8th Edition design ed used year round planning projects locating hardto-find products getting ahad hobby Guide master reference work R/C product formation 8th edition features over 2500 RC Aircraft Cars Boats related products including hundreds new pro ducts recently released Toledo other major R/C shows highly descriptive information illustrated thousands photographs new double-listing format easier-than-ever use Newcomers will find Guide mind-jogging excursion seemingly endless possibilities R/C world wildest machines its devotees Models shown commercially available Get new Radio Control Buyers Guide 8th Edition Its R/C reference book youll read f wires time will done ifter engine installed Final-sand wing remove rough dges fuselage constructed like pro File models deviation nor nal practice installation bass vood reinforcement strip between up per lower fuselage pieces Refer Detail First cut out upper lower fuse age pieces Y-in balsa cut asswood strip Item 20 upper engine mount Item 22 correct lengths 3lue basswood strip lower Fuselage Item 19 Glue upper engine mount upper fuselage Item 18 iure lower surface engine mount flush bottom surface upper fuselage Cut balsa spacer Item 23 glue tin place Position upper fuselage lie lower fuselage Check V-in slot exists between upper fuselage ipacer must enough space stabilizer inserted Cut two round doublers Item 10 X6 plywood Drill A6-in hole through center doubler through lower fuselage Glue doublers asing A6-in wire hold pieces align ment remove wire before glue sets Make tail gear doublers Item 29 X6 plywood glue side lower fuselage glue has dried drill A-in hole front leg tail gear A-in hole tail gear mounting bolt Redrill X6-in hole through center round doublers Also outboard side fuselage drill A6-in hole Y-in deep doubler fuselage last hole located lower aft part outboard doubler will used locate #6 x X-in screw Sand fuselage its final shape Tail surfaces Make stabilizer Item 27 elevators Item 28 fin Item 25 rudder Item 26 A-in balsa Sand parts shape Glue rudder fin rudder trailing edge off set Connect left right eleva tors music wire Item 29 Secure wire elevators epoxy Cut slots elevators stabilizer hinges Insert hinges stabilizer glue place After glue dries slide elevators onto hinges glue place careful get glue hinge pivot areas Install control horn right elevator Assembly Slide stabilizer elevator assembly fuselage slot secure glue Next glue tail cone spacer Item 24 fuselage leaving equal space between elevators spacer Glue fin rudder assembly top fuselage Glue wing fuselage Glue fuselage chin Item 21 lower engine mount wing leading edge Sand rough edges joints glue plywood rein forcements Items 11 12 fuselage epoxy Position engine locate mounting holes Drill A-in holes mounting counter sinking larger holes inboard side blind nuts Position fuel tank drill 42-in mounting holes Install fuel tank retaining wires Bend elevator pushrod aligns appropriate hole elevator horn Screw threaded cotipler threaded link connect link elevator horn Cut elevator pushrod fit threaded coupler Solder pushrod coupler Install engine Screw threaded coupler onto threaded link refer Detail C Connect link engine throttle arm arm half-throttle position throttle bellcrank neutral position bend throttle pushrod align coupler Cut pushrod solder coupler Slide brass eyelets over lead-out wires glue wing tip epoxy Move throttle arm fullthrottle position Holding arm position tie ends lead-out wires shown Sheet 1 plans Hook installation Fabricate hook November1984 171 See Hobby Dealer dealer send $695 plus $200 postage handling 1BOYNTON & ASSOCIATES INC CLIFTON HOUSE CUFTON VA 22024 NEW MK 2 H & K SUPER STARTERS Look before leap original still best Has new larger clutch fully supported applications 90 day warranty new lower prices MODEL 1 Q-35 Q-50 ZENOAH ROPER MODEL 2Super Hustler MAG II MODEL 3Tartan Twin Super Twin Glow Manufactured Distributed P K Products PO Box 62260 Hayward CA 945400 415 581-4277 Add $150 postage handling Item 13 shown Sheet 1 plans Install hook fuselage shown Detail Install #6 x %-in screw A6-in hole drilled earlierscrew until protrudes 1A-in screw will used stop hook down position Wrap solder length A2-in music wire elevator pushrod bend hold tail hook up position Trim end wire hook will drop elevator full-down position see Detail B Item 20 Loop rubberband around hook engage screw extending round doubler Engage hook elevator pushrod recheck will drop full-down elevator Finishing Remove engine hook tail gear Cover wings silkspan equivalent material Paint upper part fuselage blue-gray lower part light gray plan shows approximate line separates colors upper part wing blue-gray bottom light gray canopy windows white Apply white fuselage lettering star insignias latter red white blue colors Apply 1 oz stick-on lead weight underside right wing tip stall engine fuel tank hook tail gear Check model balances within / center gravity CG loca tion shown Sheet 1 plans Apply nose tail weight needed achieve desired balance point Flying little Dauntless very stable flight lifts off deck very quickly settles down smooth high-speed flight Speeds 60 70 mph easily attained have flown Dauntless 70 mph take first place club contests Slowing down Dauntless lowspeed flight quite uneventful little ship requires small amount upelevator hold reduced speed practice can really get nose up correct throttle control being applied Landing best part Just pick Z495 $3295 $3995 Dealers inquiries invited spot chop throttle let settle Its easy make three-point landings model hope enjoy flying 15 Dauntless much have Happy landings ScannerlMarez Continued page 79 quickly possible crystals damaged soldering de-soldering like electronic components dont really like long sustained applica tions high temperatures Fortunately pins installed crystals cut off can re-use sockets after cleaning solder off Assuming interested couple new frequencies may opt solder new crystals point However interest cludes sockets should first talk about crystals little bit First former two types sockets available has same pin diameter spacing crystals will drop right hole printed circuit board Another has wide flat pins wider spacing will Both available Kraft Systems boardmounted type need point Part No 120-074 $300 other type use will described later Part No 120-141K $100 Small crystal sockets such something rarity dont bother looking Radio Shack small electronics supply houses Back crystals again recom mendation get Airtronics insist different source need HC-25/U type accept HC 18/U same size has long wires instead pins unless definitely intend solder Airtronics crystals come nice neat molded plastic cap identified colors channel numbers tremendous help especially have decided plug-in field changes ever cap too wide allow seven plug-in crystals space provided PC board can install sockets ProTt MO MOLDED STRONG -METAL FRAMEGREAT GIFT 5 FOAM FILLED Transmitter ection Case X PRICE $35 Include Shipping & Kondling US CA re odd 6% Send check yr 0 5 ERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 other position four plug-ins enough satisfy requirements can trim lip sides th molded cap narrows enough allow seven side-by-side crystals However previous men tion plug-in crystals will still need remove top cover whenever fre quency change required too slow involved constant changes required scanner ing used active contest situa tion will get worse new frequencies phased have developed ultimate update will now described Full-house update Basically will stall support-mounted crystal socket board high enough permit easy crystal identification changes clear plastic window will provided checking installed crystals new board being larger space initially used original crystal circuitry will require relocation speaker antenna mount Dont put off scary-sounding things recommended changes still mainly mechanical no volved electronics changes being required Start taking off top bottom covers rear panel Unsolder wires speaker antenna connec tor remove 12-volt power input jack panel Using small iron solder wick remove seven crystals board clean solder completely off pins best done applying bit paste solder flux heat wiping off melt ed solder rag careful leave solder bridges board dur ing desoldening operation make crystal socket board youll need piece 1-in spacing elec tronic prototype perforated board prefer ably epoxy-based type cheaper phenolic board acceptable though does drill cut cleanly epoxy strong Cut size 14 x 32 holes shown photo Referring again photo note locations new holes drill indicated Note 14 crystal 172 Model Aviation
Edition: Model Aviation - 1984/11
Page Numbers: 72, 73, 74, 75, 170, 171, 172
Profile Dauntless SBD-3 THE IDEA FOR 15-sized Profile Carrier came club members called during early month 1982 concerned so-called beginners Carrier event Profile Carrier grown too complicated Hot engines line sliders ailerons flaps rudders often graced mechanisms could make Rube Goldberg envious Dave concerned club mem ber suggested new beginning Carrier event 15 engine jumped chance design model sim plicity decided movable components during flight would throttle elevators tail hook first model HR 15-powered Wildcat flown 5214-ft lines achieved top speed 60 mph Most members model club Rocky Mountain Aeromodelers have flown airplane Top completed model ready flight ltweighsin at24oz LeftThe l5Dauntless low-speed fllghtwlth tail hook down lttakesonlyasmallamountofup-ele vator hold model reduced speed Its very stable flier lIfting off deck quickly smooth high-speed flight before going low-speed phase unanimous comment Hey fun could hardly feel 15 Carrier airplane end lines less 7 lb pull 60 mph took very little effort fly Talk about economy could make three flights same amount fuel used flight 35-powered Carrier airplane Also model built about half cost 15 Wildcat experience club established following rules 15 Profile Navy Carrier 1 Use existing Profile Navy Carrier rules except specified following rules 2 Engine 1525 cu maximum 3 Line length52 ft 0 52 ft 6 4 Minimum line diameter012 stranded 010 solid 5 Scale bonus pointsnone 6 Minimum wing areanone 7 Maximum high speed scoring 70 mph 8 Permissible movable components throttle hook elevator 9 Time model eight laps lieu landing hook up position left down position right released up position quick down-elevator control movement details see pictures further clarified authors excellent exploded-view drawings seven rules decided next model should 1 Have wing area 160 sq 2 Have low wing throttle control difficult route around fuel tank mid-wing design 3 replica actual Navy carrier airplane After searching through information about World War II carrier air craft selected favorite air planes Douglas SBD-3 Dauntless span 22A model would have wing area 161 sq has low wing Douglas Dauntless Navys principal carrier-based dive bomber dur ing World War II tack Pearl Harbor until V-J day airplane responsible sinking 18 warships six carriers over 300000 tons enemy shipping Also Dauntless gunners shot down 138 Japanese planes fewer 80 Dauntlesses shot down Japanese aircraft wars end US carrier aircraft operational Pearl Harbor still service Altogether 5321 Dauntlesses built Douglas Construction model basically volves conventional construction techniques Only method mounting landing gear control bellcranks corporate somewhat novel practices recommend components model built following order land ing gear wing fuselage empennage An easy way transfer various pieces such ribs doublers spars etc plans patterns wood starts making Xerox copies compo nents Cut out Xeroxed patterns glue applicable balsa plywood pieces rubber cement After components have cut out can peel off paper templates best part havent cut up plans concept 15-powered Control Line Profile Carrier club competition has successful Rocky Mountain Aeromodelers due large part simplicity systems allowed models have appealing ap pearance well see exampleE Gerry Deneau Left direct attention engine fuel tank Installation view Youll want strong 15 engine carburetor Right jig eases building landing gear left gear leg shown place right gear leg uses opposite side jig November 1984 73 ____________5 ENGINEI 02 WEIGHT -~FRONT SPAR LEFT LER3/32 PLOWOODI Il/INPL H ____B __ ______________________________________________3/402 O LEADING EDGES4 IMARE FROM BALSAB0 SN. I/16B I/IS NOTCHES FOR RIBS ~ BALSA N*1/16 PLYWOOD 7''~( LG SOPPORT PLATE ELCOATOR BELLCRANR- .E 025 MUSIC WIRE~-SOLDER TO HOOK HOOK MUSIC WIRCI G THROTTLEBELLCRANHI/HS I/B SPAR CAPS BARE FROM 3 BELLCHANHSI B I/IS FOR S-S HANDLELG STRAP 2 I/H FOR ROBEHTDC Il/B WI NH DOABLER ______ I/IN PLOWOODI -130—I/W PLYWOOD I1/16 WHEELNO60 3/4 SCREWRIBS A-H S/BO S/B HARD MAPLE/BD 3/B BASSWOOD10 ENGINE MOUNTS S/BDOUBLER Z § J7I7AI ___Il/H BALSAI WHITE LETTERS______ - E-___ -___ CONNECT ELEVATORS SHEET OF DI __________AlL WHE EL _______-DAUNTLESS _________WING DPAN2BTD WING AREA 161 DOIS PROFILE CARRIER EADIND SPACER_________DEDIGNED B DRAWN BY GERALD DENEAA Landing gear might think odd build landing gear first reason main landing gear must stalled during wing construction Refer Sheet 1 plans detail Item 6 dimensions main landing gear made %2-in music wire sure slide aileron horn bearing onto wire before making final bend 1 A-in leg horn bearing permits landing gear incorporate efficient torsion bar action flexing loads ab sorbed twisting action horizontal part gear Make left main gear first construct right gear mirror op posite accurate landing gear bends use jig Refer Sheet 1 plans detail Item 9 dimensions tail gear Use A6-in music wire loop bolt can made bending wire around nail held vise nail should same diameter 2-56 bolt Solder inboard washer wire install A-in wheel solder Profile Dauntless structure has completed covered its now ready painting decorating Balsa ply construction typical profile CL models retaining washer wing complicated part model However following se quence will simplify its construction Make two Ribs through H holes bellcrank lead-out wires needed set ribs Make ribs sheet balsa Ribs B through H A6 balsa Make landing gear spar Item 3 3A2 plywood two doublers Item 4 A6 plywood two spacers Item 15 AD balsa Make leading edge spacer Item 2 A-in balsa Make two leading edges Item 1 left right 3A-in balsa A6-in notches used simplify positioning wing ribs shape leading edges time Retain rectangular cross section until final stages wing assembly Make lower engine mount Item 14 hard maple Drill A-in hole bellcrank mounting bolt Countersink install 6-32 blind nut Make landing gear support plate Item 5 A6 plywood Make trailing edges AA x 1-in balsa strips Glue outboard trailing edges center section trailing edge Make two important step assembling straight wing hold rib alignment strongly suggest use A-justo-jig Great Planes wing jig similar device handmade jig also does job very well sure 74 Model Aviation Full-Size Plans Available. See Page 180 B/B A I/B BALSA 1/16 BALSA032 MUSIC WIRETHREASES LINK 1/16 THREADED COUPLER SOLDER TO PUSOROSI3/5 UALSA 1/16 BALSA CONTROL MORN 25 / U PLYWOOD I/lU PLYWOOD-025 MUSIC WIRE I/3D BALSA I/lU BALSA 1/16 BALSA MAIN 3/32 BRASS NO2 MASHER SOLDER ______________________ /10 PLYWOQO lU WHEEL COLLARS 3/B U 3/B HARD MAPLE~ISPLYWOOD @ 3/B BALSA I/B 0 I/H BALSA U DO BLIND NOT NO B FLAT WASHES ~---~--lAO NEEDEDI N ROTTLE BELLORANK ELEVATOR PUORROD s11/16 MUSIC WIRE K WASHERS~ SOLDER LINKS SPARK BREADED COOP ER \~---Am ELEVATOR BELLCRANB SOLDER SHROD U P_WOOD~J5_________ HREADEDNB6-SD U I/O BOLT ITRIM FLUSH ROTI AND NO STRA-DETAILi.THROTTLE PUORROS 11/16 THREADED ROD NO 20DB SCREWS DETAIL B DETAIL IBMEET DO DI DAUNTLESS DRAWN BY SERALO DENEAUSBD3 chord line rib same distance above working surface Glue lower engine mount Item 22 root ribs Item Locate ribs proper positions glue trailing edges Position front spar Item 3 glue center section ribs Items through D Glue leading edge spacer Item 2 front spar Position left leading edge Item 1 wing ribs serted slots Glue place Repeat right leading edge Position glue upper spar caps place Turn wing upside down glue lower spar cap ribs Glue leading edge segments Item 17 leading edges wing center section Glue landing gear support plates Item 5 front spar ribs Items B C lower spar cap plates fit notches bottom edge front spar lay top lower spar cap Before proceeding leading edge sheeting install landing gear bellcranks wing control system Temporarily position left gear bearing horn shoulder presses against lower edge spar board end horn touching board rib Item C Refer Detail C Check spacer Item 15 fits tween horn rib Item D Remove landing gear glue spacer place Repeat right gear spacer Reposition left gear horn against spar inboard landing gear leg laying support plate Item 5 place doubler Item 4 aft side horn spacer Drill two XH-in holes through doubler horn spar part way leading edge Temporarily insert toothpicks holes back side Enlarge holes needed permit toothpicks penetrate leading edge Withdraw toothpicks doubler landing gear Apply epoxy glue both sides horn front side doub ler Reposition landing gear horn spar place doubler against horn spacer insert toothContinued page 170 Left article written members Rocky Mountain Aeromodeers built five Profile Dauntiessestwo shown Right author gerry Deneau first 15 Carrier model Gruman Wildcat L second Dauntless featured November 1984 75 CL CombatlJohnson Continued page 168 pie turns rich-lean rather usual one-eighth turn During Saturday night repairing model used made six matches chance use epoxy injector Chuck Rudner Myles Lawrence made Its just regular syringe some brass tubing stuck tip sharpened will slice soft wood foam Its easy mix epoxy equal amounts because have ounce cc graduations side also found microwave superior old hot-water trick comes warming epoxy itll set faster put whole thing Howard Rushs oven worked fine Cleanup pretty easy because epoxy used didnt stick plastic syringe rubber plunger Make sure brass tube clear epoxy before sets can see revolution model repair during matches Envision pit crew premixed portions epoxy kept cooler model hits ground 10cc portion rushed microwave being run generator much time left match mechanic sets control Roast 10 seconds later epoxy ready go 25 seconds later 5-minute epoxy has dried engine being started Well above may work too well have Howard Rush story everyone Howard will representing USA Combat team year besides some exotic FAI stuff has some equally-exotic Fast Combat materi al choice propeller Y&O cast carbon fibre Mind no thinned down Y&O real McCoy measure ruler rather calipers Just confound everyone models very fast using ratherFifties-appearing prop Howard crashed matches Rich Lopez couldnt get prop off couldnt get off during match after match rest day theorized heat crank must have glued prop together Lopez suggested using chisel maybe just sticking whole thing microwave seeing what would happen Just after midnight Rich succeeded getting remains prop off using gear puller same thing can happen some plastic-type props break off cleanly thrust washer Noth ing short miracle would have saved us good water-pump pliers might help Something did think about after match lost leaving hub place just putting another prop since engine Brasher crank would have enough room second prop washer left off received some literature USE 15 model engine see photo looks very interesting another good 15 couldnt hurt claim 85 horse power very light weight 114 grams four ounces cylinder barrel has intergral cooling fins much like old K&D greenheads exhaust exits right side about midway between sideport engine rearport crank 10mm diameter plenty robust note received said would some engines World Championships address USE Floridadreef 17 3565 AM Utrecht Neth erlands should much engine after World Championships Charlie Johnson 3716 Ingraham St San Diego CA 92109 Profile DauntlesslDeneau Continued page 75 picks Clamp hold assembly togeth er until epoxy sets up Secure land ing gear leg support plate landing gear strap No 2 x 3/-in screws Follow same steps right landing gear Attach lead-out wires bellcranks see Detail C assemble elevator bellcrank Item 7 throttle bellcrank Item B bolt washers DUAL PERSONAUTY TRAINER GEEMS BEAUTIFUL SUPER CHAMP WS 54 20 - 35 ENGINEs 3 CHANNEL THE BEGINNERS KITT AND EXPERTS TIC Revolutionary snap ss wing eliminates bolts fibber Complete kit $5495 dealer GEMINI MODELS INC PO Soy 1 168 Pussaic NJ 07050 locknut Trim bolt flush nut Thread lead-out wires through lefi wing secure bellcrank assembi lower engine mount bolt anc washers cut off bolt flush tor blind nut Cut off piece A6-in music wire g length 8 throttle linkage Solder clevis link end Drill Y-in hole through leading edge leading edge spacer spar hole lines up outer hole throttle bellcrank inside wing thread unsoldered end through leading edge hole Engage solder link outboard hole throttle bellcrank Item 8 Cut off piece 1/6-in wire length 12 solder clevis link end wire will used elevator pushrod Drill A-in hole through trailing edge wing /2 right wing centerline Widen hole make x Ye-in slot inside wing slide unsoldered end through trailing edge engage solder link elevator bellcrank Glue upper lower leading edge sheets rib leading edges spar caps Glue balsa sheet segments between Ribs B C between Ribs C D Glue spar caps ribs See Detail C Item 16 Glue Vie sheeting upper lower surfaces center section ribs Cut rib cap strips Detail B Item 31 glue upper lower edges ribs Items E F G Sand leading edges shape should blend smoothly leading edge sheeting Make right wing tip A-in balsa block Roughly shape ghw place sanding block final shaping blend tip smoothly wing left wing tip made like sand wich lower part made A-in balsa center pieces balsa top piece Ae balsa Detail B Glue pieces together drill holes eyelets Thread lead-out wires through holes glue tip wing Sand shape Position eyelets glue place tie ends 170 Model Aviation [ REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE Incoeporote J 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm 7ICHANGE TO RECHARG EARL Re lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo $3500 RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI J RC Reference YouwII Read Year Round wont gather dust R/C bookshelf youll Keep too busy workbench lap Because new Radio Control Buyers Guide 8th Edition design ed used year round planning projects locating hardto-find products getting ahad hobby Guide master reference work R/C product formation 8th edition features over 2500 RC Aircraft Cars Boats related products including hundreds new pro ducts recently released Toledo other major R/C shows highly descriptive information illustrated thousands photographs new double-listing format easier-than-ever use Newcomers will find Guide mind-jogging excursion seemingly endless possibilities R/C world wildest machines its devotees Models shown commercially available Get new Radio Control Buyers Guide 8th Edition Its R/C reference book youll read f wires time will done ifter engine installed Final-sand wing remove rough dges fuselage constructed like pro File models deviation nor nal practice installation bass vood reinforcement strip between up per lower fuselage pieces Refer Detail First cut out upper lower fuse age pieces Y-in balsa cut asswood strip Item 20 upper engine mount Item 22 correct lengths 3lue basswood strip lower Fuselage Item 19 Glue upper engine mount upper fuselage Item 18 iure lower surface engine mount flush bottom surface upper fuselage Cut balsa spacer Item 23 glue tin place Position upper fuselage lie lower fuselage Check V-in slot exists between upper fuselage ipacer must enough space stabilizer inserted Cut two round doublers Item 10 X6 plywood Drill A6-in hole through center doubler through lower fuselage Glue doublers asing A6-in wire hold pieces align ment remove wire before glue sets Make tail gear doublers Item 29 X6 plywood glue side lower fuselage glue has dried drill A-in hole front leg tail gear A-in hole tail gear mounting bolt Redrill X6-in hole through center round doublers Also outboard side fuselage drill A6-in hole Y-in deep doubler fuselage last hole located lower aft part outboard doubler will used locate #6 x X-in screw Sand fuselage its final shape Tail surfaces Make stabilizer Item 27 elevators Item 28 fin Item 25 rudder Item 26 A-in balsa Sand parts shape Glue rudder fin rudder trailing edge off set Connect left right eleva tors music wire Item 29 Secure wire elevators epoxy Cut slots elevators stabilizer hinges Insert hinges stabilizer glue place After glue dries slide elevators onto hinges glue place careful get glue hinge pivot areas Install control horn right elevator Assembly Slide stabilizer elevator assembly fuselage slot secure glue Next glue tail cone spacer Item 24 fuselage leaving equal space between elevators spacer Glue fin rudder assembly top fuselage Glue wing fuselage Glue fuselage chin Item 21 lower engine mount wing leading edge Sand rough edges joints glue plywood rein forcements Items 11 12 fuselage epoxy Position engine locate mounting holes Drill A-in holes mounting counter sinking larger holes inboard side blind nuts Position fuel tank drill 42-in mounting holes Install fuel tank retaining wires Bend elevator pushrod aligns appropriate hole elevator horn Screw threaded cotipler threaded link connect link elevator horn Cut elevator pushrod fit threaded coupler Solder pushrod coupler Install engine Screw threaded coupler onto threaded link refer Detail C Connect link engine throttle arm arm half-throttle position throttle bellcrank neutral position bend throttle pushrod align coupler Cut pushrod solder coupler Slide brass eyelets over lead-out wires glue wing tip epoxy Move throttle arm fullthrottle position Holding arm position tie ends lead-out wires shown Sheet 1 plans Hook installation Fabricate hook November1984 171 See Hobby Dealer dealer send $695 plus $200 postage handling 1BOYNTON & ASSOCIATES INC CLIFTON HOUSE CUFTON VA 22024 NEW MK 2 H & K SUPER STARTERS Look before leap original still best Has new larger clutch fully supported applications 90 day warranty new lower prices MODEL 1 Q-35 Q-50 ZENOAH ROPER MODEL 2Super Hustler MAG II MODEL 3Tartan Twin Super Twin Glow Manufactured Distributed P K Products PO Box 62260 Hayward CA 945400 415 581-4277 Add $150 postage handling Item 13 shown Sheet 1 plans Install hook fuselage shown Detail Install #6 x %-in screw A6-in hole drilled earlierscrew until protrudes 1A-in screw will used stop hook down position Wrap solder length A2-in music wire elevator pushrod bend hold tail hook up position Trim end wire hook will drop elevator full-down position see Detail B Item 20 Loop rubberband around hook engage screw extending round doubler Engage hook elevator pushrod recheck will drop full-down elevator Finishing Remove engine hook tail gear Cover wings silkspan equivalent material Paint upper part fuselage blue-gray lower part light gray plan shows approximate line separates colors upper part wing blue-gray bottom light gray canopy windows white Apply white fuselage lettering star insignias latter red white blue colors Apply 1 oz stick-on lead weight underside right wing tip stall engine fuel tank hook tail gear Check model balances within / center gravity CG loca tion shown Sheet 1 plans Apply nose tail weight needed achieve desired balance point Flying little Dauntless very stable flight lifts off deck very quickly settles down smooth high-speed flight Speeds 60 70 mph easily attained have flown Dauntless 70 mph take first place club contests Slowing down Dauntless lowspeed flight quite uneventful little ship requires small amount upelevator hold reduced speed practice can really get nose up correct throttle control being applied Landing best part Just pick Z495 $3295 $3995 Dealers inquiries invited spot chop throttle let settle Its easy make three-point landings model hope enjoy flying 15 Dauntless much have Happy landings ScannerlMarez Continued page 79 quickly possible crystals damaged soldering de-soldering like electronic components dont really like long sustained applica tions high temperatures Fortunately pins installed crystals cut off can re-use sockets after cleaning solder off Assuming interested couple new frequencies may opt solder new crystals point However interest cludes sockets should first talk about crystals little bit First former two types sockets available has same pin diameter spacing crystals will drop right hole printed circuit board Another has wide flat pins wider spacing will Both available Kraft Systems boardmounted type need point Part No 120-074 $300 other type use will described later Part No 120-141K $100 Small crystal sockets such something rarity dont bother looking Radio Shack small electronics supply houses Back crystals again recom mendation get Airtronics insist different source need HC-25/U type accept HC 18/U same size has long wires instead pins unless definitely intend solder Airtronics crystals come nice neat molded plastic cap identified colors channel numbers tremendous help especially have decided plug-in field changes ever cap too wide allow seven plug-in crystals space provided PC board can install sockets ProTt MO MOLDED STRONG -METAL FRAMEGREAT GIFT 5 FOAM FILLED Transmitter ection Case X PRICE $35 Include Shipping & Kondling US CA re odd 6% Send check yr 0 5 ERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 other position four plug-ins enough satisfy requirements can trim lip sides th molded cap narrows enough allow seven side-by-side crystals However previous men tion plug-in crystals will still need remove top cover whenever fre quency change required too slow involved constant changes required scanner ing used active contest situa tion will get worse new frequencies phased have developed ultimate update will now described Full-house update Basically will stall support-mounted crystal socket board high enough permit easy crystal identification changes clear plastic window will provided checking installed crystals new board being larger space initially used original crystal circuitry will require relocation speaker antenna mount Dont put off scary-sounding things recommended changes still mainly mechanical no volved electronics changes being required Start taking off top bottom covers rear panel Unsolder wires speaker antenna connec tor remove 12-volt power input jack panel Using small iron solder wick remove seven crystals board clean solder completely off pins best done applying bit paste solder flux heat wiping off melt ed solder rag careful leave solder bridges board dur ing desoldening operation make crystal socket board youll need piece 1-in spacing elec tronic prototype perforated board prefer ably epoxy-based type cheaper phenolic board acceptable though does drill cut cleanly epoxy strong Cut size 14 x 32 holes shown photo Referring again photo note locations new holes drill indicated Note 14 crystal 172 Model Aviation
Edition: Model Aviation - 1984/11
Page Numbers: 72, 73, 74, 75, 170, 171, 172
Profile Dauntless SBD-3 THE IDEA FOR 15-sized Profile Carrier came club members called during early month 1982 concerned so-called beginners Carrier event Profile Carrier grown too complicated Hot engines line sliders ailerons flaps rudders often graced mechanisms could make Rube Goldberg envious Dave concerned club mem ber suggested new beginning Carrier event 15 engine jumped chance design model sim plicity decided movable components during flight would throttle elevators tail hook first model HR 15-powered Wildcat flown 5214-ft lines achieved top speed 60 mph Most members model club Rocky Mountain Aeromodelers have flown airplane Top completed model ready flight ltweighsin at24oz LeftThe l5Dauntless low-speed fllghtwlth tail hook down lttakesonlyasmallamountofup-ele vator hold model reduced speed Its very stable flier lIfting off deck quickly smooth high-speed flight before going low-speed phase unanimous comment Hey fun could hardly feel 15 Carrier airplane end lines less 7 lb pull 60 mph took very little effort fly Talk about economy could make three flights same amount fuel used flight 35-powered Carrier airplane Also model built about half cost 15 Wildcat experience club established following rules 15 Profile Navy Carrier 1 Use existing Profile Navy Carrier rules except specified following rules 2 Engine 1525 cu maximum 3 Line length52 ft 0 52 ft 6 4 Minimum line diameter012 stranded 010 solid 5 Scale bonus pointsnone 6 Minimum wing areanone 7 Maximum high speed scoring 70 mph 8 Permissible movable components throttle hook elevator 9 Time model eight laps lieu landing hook up position left down position right released up position quick down-elevator control movement details see pictures further clarified authors excellent exploded-view drawings seven rules decided next model should 1 Have wing area 160 sq 2 Have low wing throttle control difficult route around fuel tank mid-wing design 3 replica actual Navy carrier airplane After searching through information about World War II carrier air craft selected favorite air planes Douglas SBD-3 Dauntless span 22A model would have wing area 161 sq has low wing Douglas Dauntless Navys principal carrier-based dive bomber dur ing World War II tack Pearl Harbor until V-J day airplane responsible sinking 18 warships six carriers over 300000 tons enemy shipping Also Dauntless gunners shot down 138 Japanese planes fewer 80 Dauntlesses shot down Japanese aircraft wars end US carrier aircraft operational Pearl Harbor still service Altogether 5321 Dauntlesses built Douglas Construction model basically volves conventional construction techniques Only method mounting landing gear control bellcranks corporate somewhat novel practices recommend components model built following order land ing gear wing fuselage empennage An easy way transfer various pieces such ribs doublers spars etc plans patterns wood starts making Xerox copies compo nents Cut out Xeroxed patterns glue applicable balsa plywood pieces rubber cement After components have cut out can peel off paper templates best part havent cut up plans concept 15-powered Control Line Profile Carrier club competition has successful Rocky Mountain Aeromodelers due large part simplicity systems allowed models have appealing ap pearance well see exampleE Gerry Deneau Left direct attention engine fuel tank Installation view Youll want strong 15 engine carburetor Right jig eases building landing gear left gear leg shown place right gear leg uses opposite side jig November 1984 73 ____________5 ENGINEI 02 WEIGHT -~FRONT SPAR LEFT LER3/32 PLOWOODI Il/INPL H ____B __ ______________________________________________3/402 O LEADING EDGES4 IMARE FROM BALSAB0 SN. I/16B I/IS NOTCHES FOR RIBS ~ BALSA N*1/16 PLYWOOD 7''~( LG SOPPORT PLATE ELCOATOR BELLCRANR- .E 025 MUSIC WIRE~-SOLDER TO HOOK HOOK MUSIC WIRCI G THROTTLEBELLCRANHI/HS I/B SPAR CAPS BARE FROM 3 BELLCHANHSI B I/IS FOR S-S HANDLELG STRAP 2 I/H FOR ROBEHTDC Il/B WI NH DOABLER ______ I/IN PLOWOODI -130—I/W PLYWOOD I1/16 WHEELNO60 3/4 SCREWRIBS A-H S/BO S/B HARD MAPLE/BD 3/B BASSWOOD10 ENGINE MOUNTS S/BDOUBLER Z § J7I7AI ___Il/H BALSAI WHITE LETTERS______ - E-___ -___ CONNECT ELEVATORS SHEET OF DI __________AlL WHE EL _______-DAUNTLESS _________WING DPAN2BTD WING AREA 161 DOIS PROFILE CARRIER EADIND SPACER_________DEDIGNED B DRAWN BY GERALD DENEAA Landing gear might think odd build landing gear first reason main landing gear must stalled during wing construction Refer Sheet 1 plans detail Item 6 dimensions main landing gear made %2-in music wire sure slide aileron horn bearing onto wire before making final bend 1 A-in leg horn bearing permits landing gear incorporate efficient torsion bar action flexing loads ab sorbed twisting action horizontal part gear Make left main gear first construct right gear mirror op posite accurate landing gear bends use jig Refer Sheet 1 plans detail Item 9 dimensions tail gear Use A6-in music wire loop bolt can made bending wire around nail held vise nail should same diameter 2-56 bolt Solder inboard washer wire install A-in wheel solder Profile Dauntless structure has completed covered its now ready painting decorating Balsa ply construction typical profile CL models retaining washer wing complicated part model However following se quence will simplify its construction Make two Ribs through H holes bellcrank lead-out wires needed set ribs Make ribs sheet balsa Ribs B through H A6 balsa Make landing gear spar Item 3 3A2 plywood two doublers Item 4 A6 plywood two spacers Item 15 AD balsa Make leading edge spacer Item 2 A-in balsa Make two leading edges Item 1 left right 3A-in balsa A6-in notches used simplify positioning wing ribs shape leading edges time Retain rectangular cross section until final stages wing assembly Make lower engine mount Item 14 hard maple Drill A-in hole bellcrank mounting bolt Countersink install 6-32 blind nut Make landing gear support plate Item 5 A6 plywood Make trailing edges AA x 1-in balsa strips Glue outboard trailing edges center section trailing edge Make two important step assembling straight wing hold rib alignment strongly suggest use A-justo-jig Great Planes wing jig similar device handmade jig also does job very well sure 74 Model Aviation Full-Size Plans Available. See Page 180 B/B A I/B BALSA 1/16 BALSA032 MUSIC WIRETHREASES LINK 1/16 THREADED COUPLER SOLDER TO PUSOROSI3/5 UALSA 1/16 BALSA CONTROL MORN 25 / U PLYWOOD I/lU PLYWOOD-025 MUSIC WIRE I/3D BALSA I/lU BALSA 1/16 BALSA MAIN 3/32 BRASS NO2 MASHER SOLDER ______________________ /10 PLYWOQO lU WHEEL COLLARS 3/B U 3/B HARD MAPLE~ISPLYWOOD @ 3/B BALSA I/B 0 I/H BALSA U DO BLIND NOT NO B FLAT WASHES ~---~--lAO NEEDEDI N ROTTLE BELLORANK ELEVATOR PUORROD s11/16 MUSIC WIRE K WASHERS~ SOLDER LINKS SPARK BREADED COOP ER \~---Am ELEVATOR BELLCRANB SOLDER SHROD U P_WOOD~J5_________ HREADEDNB6-SD U I/O BOLT ITRIM FLUSH ROTI AND NO STRA-DETAILi.THROTTLE PUORROS 11/16 THREADED ROD NO 20DB SCREWS DETAIL B DETAIL IBMEET DO DI DAUNTLESS DRAWN BY SERALO DENEAUSBD3 chord line rib same distance above working surface Glue lower engine mount Item 22 root ribs Item Locate ribs proper positions glue trailing edges Position front spar Item 3 glue center section ribs Items through D Glue leading edge spacer Item 2 front spar Position left leading edge Item 1 wing ribs serted slots Glue place Repeat right leading edge Position glue upper spar caps place Turn wing upside down glue lower spar cap ribs Glue leading edge segments Item 17 leading edges wing center section Glue landing gear support plates Item 5 front spar ribs Items B C lower spar cap plates fit notches bottom edge front spar lay top lower spar cap Before proceeding leading edge sheeting install landing gear bellcranks wing control system Temporarily position left gear bearing horn shoulder presses against lower edge spar board end horn touching board rib Item C Refer Detail C Check spacer Item 15 fits tween horn rib Item D Remove landing gear glue spacer place Repeat right gear spacer Reposition left gear horn against spar inboard landing gear leg laying support plate Item 5 place doubler Item 4 aft side horn spacer Drill two XH-in holes through doubler horn spar part way leading edge Temporarily insert toothpicks holes back side Enlarge holes needed permit toothpicks penetrate leading edge Withdraw toothpicks doubler landing gear Apply epoxy glue both sides horn front side doub ler Reposition landing gear horn spar place doubler against horn spacer insert toothContinued page 170 Left article written members Rocky Mountain Aeromodeers built five Profile Dauntiessestwo shown Right author gerry Deneau first 15 Carrier model Gruman Wildcat L second Dauntless featured November 1984 75 CL CombatlJohnson Continued page 168 pie turns rich-lean rather usual one-eighth turn During Saturday night repairing model used made six matches chance use epoxy injector Chuck Rudner Myles Lawrence made Its just regular syringe some brass tubing stuck tip sharpened will slice soft wood foam Its easy mix epoxy equal amounts because have ounce cc graduations side also found microwave superior old hot-water trick comes warming epoxy itll set faster put whole thing Howard Rushs oven worked fine Cleanup pretty easy because epoxy used didnt stick plastic syringe rubber plunger Make sure brass tube clear epoxy before sets can see revolution model repair during matches Envision pit crew premixed portions epoxy kept cooler model hits ground 10cc portion rushed microwave being run generator much time left match mechanic sets control Roast 10 seconds later epoxy ready go 25 seconds later 5-minute epoxy has dried engine being started Well above may work too well have Howard Rush story everyone Howard will representing USA Combat team year besides some exotic FAI stuff has some equally-exotic Fast Combat materi al choice propeller Y&O cast carbon fibre Mind no thinned down Y&O real McCoy measure ruler rather calipers Just confound everyone models very fast using ratherFifties-appearing prop Howard crashed matches Rich Lopez couldnt get prop off couldnt get off during match after match rest day theorized heat crank must have glued prop together Lopez suggested using chisel maybe just sticking whole thing microwave seeing what would happen Just after midnight Rich succeeded getting remains prop off using gear puller same thing can happen some plastic-type props break off cleanly thrust washer Noth ing short miracle would have saved us good water-pump pliers might help Something did think about after match lost leaving hub place just putting another prop since engine Brasher crank would have enough room second prop washer left off received some literature USE 15 model engine see photo looks very interesting another good 15 couldnt hurt claim 85 horse power very light weight 114 grams four ounces cylinder barrel has intergral cooling fins much like old K&D greenheads exhaust exits right side about midway between sideport engine rearport crank 10mm diameter plenty robust note received said would some engines World Championships address USE Floridadreef 17 3565 AM Utrecht Neth erlands should much engine after World Championships Charlie Johnson 3716 Ingraham St San Diego CA 92109 Profile DauntlesslDeneau Continued page 75 picks Clamp hold assembly togeth er until epoxy sets up Secure land ing gear leg support plate landing gear strap No 2 x 3/-in screws Follow same steps right landing gear Attach lead-out wires bellcranks see Detail C assemble elevator bellcrank Item 7 throttle bellcrank Item B bolt washers DUAL PERSONAUTY TRAINER GEEMS BEAUTIFUL SUPER CHAMP WS 54 20 - 35 ENGINEs 3 CHANNEL THE BEGINNERS KITT AND EXPERTS TIC Revolutionary snap ss wing eliminates bolts fibber Complete kit $5495 dealer GEMINI MODELS INC PO Soy 1 168 Pussaic NJ 07050 locknut Trim bolt flush nut Thread lead-out wires through lefi wing secure bellcrank assembi lower engine mount bolt anc washers cut off bolt flush tor blind nut Cut off piece A6-in music wire g length 8 throttle linkage Solder clevis link end Drill Y-in hole through leading edge leading edge spacer spar hole lines up outer hole throttle bellcrank inside wing thread unsoldered end through leading edge hole Engage solder link outboard hole throttle bellcrank Item 8 Cut off piece 1/6-in wire length 12 solder clevis link end wire will used elevator pushrod Drill A-in hole through trailing edge wing /2 right wing centerline Widen hole make x Ye-in slot inside wing slide unsoldered end through trailing edge engage solder link elevator bellcrank Glue upper lower leading edge sheets rib leading edges spar caps Glue balsa sheet segments between Ribs B C between Ribs C D Glue spar caps ribs See Detail C Item 16 Glue Vie sheeting upper lower surfaces center section ribs Cut rib cap strips Detail B Item 31 glue upper lower edges ribs Items E F G Sand leading edges shape should blend smoothly leading edge sheeting Make right wing tip A-in balsa block Roughly shape ghw place sanding block final shaping blend tip smoothly wing left wing tip made like sand wich lower part made A-in balsa center pieces balsa top piece Ae balsa Detail B Glue pieces together drill holes eyelets Thread lead-out wires through holes glue tip wing Sand shape Position eyelets glue place tie ends 170 Model Aviation [ REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE Incoeporote J 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm 7ICHANGE TO RECHARG EARL Re lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo $3500 RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI J RC Reference YouwII Read Year Round wont gather dust R/C bookshelf youll Keep too busy workbench lap Because new Radio Control Buyers Guide 8th Edition design ed used year round planning projects locating hardto-find products getting ahad hobby Guide master reference work R/C product formation 8th edition features over 2500 RC Aircraft Cars Boats related products including hundreds new pro ducts recently released Toledo other major R/C shows highly descriptive information illustrated thousands photographs new double-listing format easier-than-ever use Newcomers will find Guide mind-jogging excursion seemingly endless possibilities R/C world wildest machines its devotees Models shown commercially available Get new Radio Control Buyers Guide 8th Edition Its R/C reference book youll read f wires time will done ifter engine installed Final-sand wing remove rough dges fuselage constructed like pro File models deviation nor nal practice installation bass vood reinforcement strip between up per lower fuselage pieces Refer Detail First cut out upper lower fuse age pieces Y-in balsa cut asswood strip Item 20 upper engine mount Item 22 correct lengths 3lue basswood strip lower Fuselage Item 19 Glue upper engine mount upper fuselage Item 18 iure lower surface engine mount flush bottom surface upper fuselage Cut balsa spacer Item 23 glue tin place Position upper fuselage lie lower fuselage Check V-in slot exists between upper fuselage ipacer must enough space stabilizer inserted Cut two round doublers Item 10 X6 plywood Drill A6-in hole through center doubler through lower fuselage Glue doublers asing A6-in wire hold pieces align ment remove wire before glue sets Make tail gear doublers Item 29 X6 plywood glue side lower fuselage glue has dried drill A-in hole front leg tail gear A-in hole tail gear mounting bolt Redrill X6-in hole through center round doublers Also outboard side fuselage drill A6-in hole Y-in deep doubler fuselage last hole located lower aft part outboard doubler will used locate #6 x X-in screw Sand fuselage its final shape Tail surfaces Make stabilizer Item 27 elevators Item 28 fin Item 25 rudder Item 26 A-in balsa Sand parts shape Glue rudder fin rudder trailing edge off set Connect left right eleva tors music wire Item 29 Secure wire elevators epoxy Cut slots elevators stabilizer hinges Insert hinges stabilizer glue place After glue dries slide elevators onto hinges glue place careful get glue hinge pivot areas Install control horn right elevator Assembly Slide stabilizer elevator assembly fuselage slot secure glue Next glue tail cone spacer Item 24 fuselage leaving equal space between elevators spacer Glue fin rudder assembly top fuselage Glue wing fuselage Glue fuselage chin Item 21 lower engine mount wing leading edge Sand rough edges joints glue plywood rein forcements Items 11 12 fuselage epoxy Position engine locate mounting holes Drill A-in holes mounting counter sinking larger holes inboard side blind nuts Position fuel tank drill 42-in mounting holes Install fuel tank retaining wires Bend elevator pushrod aligns appropriate hole elevator horn Screw threaded cotipler threaded link connect link elevator horn Cut elevator pushrod fit threaded coupler Solder pushrod coupler Install engine Screw threaded coupler onto threaded link refer Detail C Connect link engine throttle arm arm half-throttle position throttle bellcrank neutral position bend throttle pushrod align coupler Cut pushrod solder coupler Slide brass eyelets over lead-out wires glue wing tip epoxy Move throttle arm fullthrottle position Holding arm position tie ends lead-out wires shown Sheet 1 plans Hook installation Fabricate hook November1984 171 See Hobby Dealer dealer send $695 plus $200 postage handling 1BOYNTON & ASSOCIATES INC CLIFTON HOUSE CUFTON VA 22024 NEW MK 2 H & K SUPER STARTERS Look before leap original still best Has new larger clutch fully supported applications 90 day warranty new lower prices MODEL 1 Q-35 Q-50 ZENOAH ROPER MODEL 2Super Hustler MAG II MODEL 3Tartan Twin Super Twin Glow Manufactured Distributed P K Products PO Box 62260 Hayward CA 945400 415 581-4277 Add $150 postage handling Item 13 shown Sheet 1 plans Install hook fuselage shown Detail Install #6 x %-in screw A6-in hole drilled earlierscrew until protrudes 1A-in screw will used stop hook down position Wrap solder length A2-in music wire elevator pushrod bend hold tail hook up position Trim end wire hook will drop elevator full-down position see Detail B Item 20 Loop rubberband around hook engage screw extending round doubler Engage hook elevator pushrod recheck will drop full-down elevator Finishing Remove engine hook tail gear Cover wings silkspan equivalent material Paint upper part fuselage blue-gray lower part light gray plan shows approximate line separates colors upper part wing blue-gray bottom light gray canopy windows white Apply white fuselage lettering star insignias latter red white blue colors Apply 1 oz stick-on lead weight underside right wing tip stall engine fuel tank hook tail gear Check model balances within / center gravity CG loca tion shown Sheet 1 plans Apply nose tail weight needed achieve desired balance point Flying little Dauntless very stable flight lifts off deck very quickly settles down smooth high-speed flight Speeds 60 70 mph easily attained have flown Dauntless 70 mph take first place club contests Slowing down Dauntless lowspeed flight quite uneventful little ship requires small amount upelevator hold reduced speed practice can really get nose up correct throttle control being applied Landing best part Just pick Z495 $3295 $3995 Dealers inquiries invited spot chop throttle let settle Its easy make three-point landings model hope enjoy flying 15 Dauntless much have Happy landings ScannerlMarez Continued page 79 quickly possible crystals damaged soldering de-soldering like electronic components dont really like long sustained applica tions high temperatures Fortunately pins installed crystals cut off can re-use sockets after cleaning solder off Assuming interested couple new frequencies may opt solder new crystals point However interest cludes sockets should first talk about crystals little bit First former two types sockets available has same pin diameter spacing crystals will drop right hole printed circuit board Another has wide flat pins wider spacing will Both available Kraft Systems boardmounted type need point Part No 120-074 $300 other type use will described later Part No 120-141K $100 Small crystal sockets such something rarity dont bother looking Radio Shack small electronics supply houses Back crystals again recom mendation get Airtronics insist different source need HC-25/U type accept HC 18/U same size has long wires instead pins unless definitely intend solder Airtronics crystals come nice neat molded plastic cap identified colors channel numbers tremendous help especially have decided plug-in field changes ever cap too wide allow seven plug-in crystals space provided PC board can install sockets ProTt MO MOLDED STRONG -METAL FRAMEGREAT GIFT 5 FOAM FILLED Transmitter ection Case X PRICE $35 Include Shipping & Kondling US CA re odd 6% Send check yr 0 5 ERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 other position four plug-ins enough satisfy requirements can trim lip sides th molded cap narrows enough allow seven side-by-side crystals However previous men tion plug-in crystals will still need remove top cover whenever fre quency change required too slow involved constant changes required scanner ing used active contest situa tion will get worse new frequencies phased have developed ultimate update will now described Full-house update Basically will stall support-mounted crystal socket board high enough permit easy crystal identification changes clear plastic window will provided checking installed crystals new board being larger space initially used original crystal circuitry will require relocation speaker antenna mount Dont put off scary-sounding things recommended changes still mainly mechanical no volved electronics changes being required Start taking off top bottom covers rear panel Unsolder wires speaker antenna connec tor remove 12-volt power input jack panel Using small iron solder wick remove seven crystals board clean solder completely off pins best done applying bit paste solder flux heat wiping off melt ed solder rag careful leave solder bridges board dur ing desoldening operation make crystal socket board youll need piece 1-in spacing elec tronic prototype perforated board prefer ably epoxy-based type cheaper phenolic board acceptable though does drill cut cleanly epoxy strong Cut size 14 x 32 holes shown photo Referring again photo note locations new holes drill indicated Note 14 crystal 172 Model Aviation
Edition: Model Aviation - 1984/11
Page Numbers: 72, 73, 74, 75, 170, 171, 172
Profile Dauntless SBD-3 THE IDEA FOR 15-sized Profile Carrier came club members called during early month 1982 concerned so-called beginners Carrier event Profile Carrier grown too complicated Hot engines line sliders ailerons flaps rudders often graced mechanisms could make Rube Goldberg envious Dave concerned club mem ber suggested new beginning Carrier event 15 engine jumped chance design model sim plicity decided movable components during flight would throttle elevators tail hook first model HR 15-powered Wildcat flown 5214-ft lines achieved top speed 60 mph Most members model club Rocky Mountain Aeromodelers have flown airplane Top completed model ready flight ltweighsin at24oz LeftThe l5Dauntless low-speed fllghtwlth tail hook down lttakesonlyasmallamountofup-ele vator hold model reduced speed Its very stable flier lIfting off deck quickly smooth high-speed flight before going low-speed phase unanimous comment Hey fun could hardly feel 15 Carrier airplane end lines less 7 lb pull 60 mph took very little effort fly Talk about economy could make three flights same amount fuel used flight 35-powered Carrier airplane Also model built about half cost 15 Wildcat experience club established following rules 15 Profile Navy Carrier 1 Use existing Profile Navy Carrier rules except specified following rules 2 Engine 1525 cu maximum 3 Line length52 ft 0 52 ft 6 4 Minimum line diameter012 stranded 010 solid 5 Scale bonus pointsnone 6 Minimum wing areanone 7 Maximum high speed scoring 70 mph 8 Permissible movable components throttle hook elevator 9 Time model eight laps lieu landing hook up position left down position right released up position quick down-elevator control movement details see pictures further clarified authors excellent exploded-view drawings seven rules decided next model should 1 Have wing area 160 sq 2 Have low wing throttle control difficult route around fuel tank mid-wing design 3 replica actual Navy carrier airplane After searching through information about World War II carrier air craft selected favorite air planes Douglas SBD-3 Dauntless span 22A model would have wing area 161 sq has low wing Douglas Dauntless Navys principal carrier-based dive bomber dur ing World War II tack Pearl Harbor until V-J day airplane responsible sinking 18 warships six carriers over 300000 tons enemy shipping Also Dauntless gunners shot down 138 Japanese planes fewer 80 Dauntlesses shot down Japanese aircraft wars end US carrier aircraft operational Pearl Harbor still service Altogether 5321 Dauntlesses built Douglas Construction model basically volves conventional construction techniques Only method mounting landing gear control bellcranks corporate somewhat novel practices recommend components model built following order land ing gear wing fuselage empennage An easy way transfer various pieces such ribs doublers spars etc plans patterns wood starts making Xerox copies compo nents Cut out Xeroxed patterns glue applicable balsa plywood pieces rubber cement After components have cut out can peel off paper templates best part havent cut up plans concept 15-powered Control Line Profile Carrier club competition has successful Rocky Mountain Aeromodelers due large part simplicity systems allowed models have appealing ap pearance well see exampleE Gerry Deneau Left direct attention engine fuel tank Installation view Youll want strong 15 engine carburetor Right jig eases building landing gear left gear leg shown place right gear leg uses opposite side jig November 1984 73 ____________5 ENGINEI 02 WEIGHT -~FRONT SPAR LEFT LER3/32 PLOWOODI Il/INPL H ____B __ ______________________________________________3/402 O LEADING EDGES4 IMARE FROM BALSAB0 SN. I/16B I/IS NOTCHES FOR RIBS ~ BALSA N*1/16 PLYWOOD 7''~( LG SOPPORT PLATE ELCOATOR BELLCRANR- .E 025 MUSIC WIRE~-SOLDER TO HOOK HOOK MUSIC WIRCI G THROTTLEBELLCRANHI/HS I/B SPAR CAPS BARE FROM 3 BELLCHANHSI B I/IS FOR S-S HANDLELG STRAP 2 I/H FOR ROBEHTDC Il/B WI NH DOABLER ______ I/IN PLOWOODI -130—I/W PLYWOOD I1/16 WHEELNO60 3/4 SCREWRIBS A-H S/BO S/B HARD MAPLE/BD 3/B BASSWOOD10 ENGINE MOUNTS S/BDOUBLER Z § J7I7AI ___Il/H BALSAI WHITE LETTERS______ - E-___ -___ CONNECT ELEVATORS SHEET OF DI __________AlL WHE EL _______-DAUNTLESS _________WING DPAN2BTD WING AREA 161 DOIS PROFILE CARRIER EADIND SPACER_________DEDIGNED B DRAWN BY GERALD DENEAA Landing gear might think odd build landing gear first reason main landing gear must stalled during wing construction Refer Sheet 1 plans detail Item 6 dimensions main landing gear made %2-in music wire sure slide aileron horn bearing onto wire before making final bend 1 A-in leg horn bearing permits landing gear incorporate efficient torsion bar action flexing loads ab sorbed twisting action horizontal part gear Make left main gear first construct right gear mirror op posite accurate landing gear bends use jig Refer Sheet 1 plans detail Item 9 dimensions tail gear Use A6-in music wire loop bolt can made bending wire around nail held vise nail should same diameter 2-56 bolt Solder inboard washer wire install A-in wheel solder Profile Dauntless structure has completed covered its now ready painting decorating Balsa ply construction typical profile CL models retaining washer wing complicated part model However following se quence will simplify its construction Make two Ribs through H holes bellcrank lead-out wires needed set ribs Make ribs sheet balsa Ribs B through H A6 balsa Make landing gear spar Item 3 3A2 plywood two doublers Item 4 A6 plywood two spacers Item 15 AD balsa Make leading edge spacer Item 2 A-in balsa Make two leading edges Item 1 left right 3A-in balsa A6-in notches used simplify positioning wing ribs shape leading edges time Retain rectangular cross section until final stages wing assembly Make lower engine mount Item 14 hard maple Drill A-in hole bellcrank mounting bolt Countersink install 6-32 blind nut Make landing gear support plate Item 5 A6 plywood Make trailing edges AA x 1-in balsa strips Glue outboard trailing edges center section trailing edge Make two important step assembling straight wing hold rib alignment strongly suggest use A-justo-jig Great Planes wing jig similar device handmade jig also does job very well sure 74 Model Aviation Full-Size Plans Available. See Page 180 B/B A I/B BALSA 1/16 BALSA032 MUSIC WIRETHREASES LINK 1/16 THREADED COUPLER SOLDER TO PUSOROSI3/5 UALSA 1/16 BALSA CONTROL MORN 25 / U PLYWOOD I/lU PLYWOOD-025 MUSIC WIRE I/3D BALSA I/lU BALSA 1/16 BALSA MAIN 3/32 BRASS NO2 MASHER SOLDER ______________________ /10 PLYWOQO lU WHEEL COLLARS 3/B U 3/B HARD MAPLE~ISPLYWOOD @ 3/B BALSA I/B 0 I/H BALSA U DO BLIND NOT NO B FLAT WASHES ~---~--lAO NEEDEDI N ROTTLE BELLORANK ELEVATOR PUORROD s11/16 MUSIC WIRE K WASHERS~ SOLDER LINKS SPARK BREADED COOP ER \~---Am ELEVATOR BELLCRANB SOLDER SHROD U P_WOOD~J5_________ HREADEDNB6-SD U I/O BOLT ITRIM FLUSH ROTI AND NO STRA-DETAILi.THROTTLE PUORROS 11/16 THREADED ROD NO 20DB SCREWS DETAIL B DETAIL IBMEET DO DI DAUNTLESS DRAWN BY SERALO DENEAUSBD3 chord line rib same distance above working surface Glue lower engine mount Item 22 root ribs Item Locate ribs proper positions glue trailing edges Position front spar Item 3 glue center section ribs Items through D Glue leading edge spacer Item 2 front spar Position left leading edge Item 1 wing ribs serted slots Glue place Repeat right leading edge Position glue upper spar caps place Turn wing upside down glue lower spar cap ribs Glue leading edge segments Item 17 leading edges wing center section Glue landing gear support plates Item 5 front spar ribs Items B C lower spar cap plates fit notches bottom edge front spar lay top lower spar cap Before proceeding leading edge sheeting install landing gear bellcranks wing control system Temporarily position left gear bearing horn shoulder presses against lower edge spar board end horn touching board rib Item C Refer Detail C Check spacer Item 15 fits tween horn rib Item D Remove landing gear glue spacer place Repeat right gear spacer Reposition left gear horn against spar inboard landing gear leg laying support plate Item 5 place doubler Item 4 aft side horn spacer Drill two XH-in holes through doubler horn spar part way leading edge Temporarily insert toothpicks holes back side Enlarge holes needed permit toothpicks penetrate leading edge Withdraw toothpicks doubler landing gear Apply epoxy glue both sides horn front side doub ler Reposition landing gear horn spar place doubler against horn spacer insert toothContinued page 170 Left article written members Rocky Mountain Aeromodeers built five Profile Dauntiessestwo shown Right author gerry Deneau first 15 Carrier model Gruman Wildcat L second Dauntless featured November 1984 75 CL CombatlJohnson Continued page 168 pie turns rich-lean rather usual one-eighth turn During Saturday night repairing model used made six matches chance use epoxy injector Chuck Rudner Myles Lawrence made Its just regular syringe some brass tubing stuck tip sharpened will slice soft wood foam Its easy mix epoxy equal amounts because have ounce cc graduations side also found microwave superior old hot-water trick comes warming epoxy itll set faster put whole thing Howard Rushs oven worked fine Cleanup pretty easy because epoxy used didnt stick plastic syringe rubber plunger Make sure brass tube clear epoxy before sets can see revolution model repair during matches Envision pit crew premixed portions epoxy kept cooler model hits ground 10cc portion rushed microwave being run generator much time left match mechanic sets control Roast 10 seconds later epoxy ready go 25 seconds later 5-minute epoxy has dried engine being started Well above may work too well have Howard Rush story everyone Howard will representing USA Combat team year besides some exotic FAI stuff has some equally-exotic Fast Combat materi al choice propeller Y&O cast carbon fibre Mind no thinned down Y&O real McCoy measure ruler rather calipers Just confound everyone models very fast using ratherFifties-appearing prop Howard crashed matches Rich Lopez couldnt get prop off couldnt get off during match after match rest day theorized heat crank must have glued prop together Lopez suggested using chisel maybe just sticking whole thing microwave seeing what would happen Just after midnight Rich succeeded getting remains prop off using gear puller same thing can happen some plastic-type props break off cleanly thrust washer Noth ing short miracle would have saved us good water-pump pliers might help Something did think about after match lost leaving hub place just putting another prop since engine Brasher crank would have enough room second prop washer left off received some literature USE 15 model engine see photo looks very interesting another good 15 couldnt hurt claim 85 horse power very light weight 114 grams four ounces cylinder barrel has intergral cooling fins much like old K&D greenheads exhaust exits right side about midway between sideport engine rearport crank 10mm diameter plenty robust note received said would some engines World Championships address USE Floridadreef 17 3565 AM Utrecht Neth erlands should much engine after World Championships Charlie Johnson 3716 Ingraham St San Diego CA 92109 Profile DauntlesslDeneau Continued page 75 picks Clamp hold assembly togeth er until epoxy sets up Secure land ing gear leg support plate landing gear strap No 2 x 3/-in screws Follow same steps right landing gear Attach lead-out wires bellcranks see Detail C assemble elevator bellcrank Item 7 throttle bellcrank Item B bolt washers DUAL PERSONAUTY TRAINER GEEMS BEAUTIFUL SUPER CHAMP WS 54 20 - 35 ENGINEs 3 CHANNEL THE BEGINNERS KITT AND EXPERTS TIC Revolutionary snap ss wing eliminates bolts fibber Complete kit $5495 dealer GEMINI MODELS INC PO Soy 1 168 Pussaic NJ 07050 locknut Trim bolt flush nut Thread lead-out wires through lefi wing secure bellcrank assembi lower engine mount bolt anc washers cut off bolt flush tor blind nut Cut off piece A6-in music wire g length 8 throttle linkage Solder clevis link end Drill Y-in hole through leading edge leading edge spacer spar hole lines up outer hole throttle bellcrank inside wing thread unsoldered end through leading edge hole Engage solder link outboard hole throttle bellcrank Item 8 Cut off piece 1/6-in wire length 12 solder clevis link end wire will used elevator pushrod Drill A-in hole through trailing edge wing /2 right wing centerline Widen hole make x Ye-in slot inside wing slide unsoldered end through trailing edge engage solder link elevator bellcrank Glue upper lower leading edge sheets rib leading edges spar caps Glue balsa sheet segments between Ribs B C between Ribs C D Glue spar caps ribs See Detail C Item 16 Glue Vie sheeting upper lower surfaces center section ribs Cut rib cap strips Detail B Item 31 glue upper lower edges ribs Items E F G Sand leading edges shape should blend smoothly leading edge sheeting Make right wing tip A-in balsa block Roughly shape ghw place sanding block final shaping blend tip smoothly wing left wing tip made like sand wich lower part made A-in balsa center pieces balsa top piece Ae balsa Detail B Glue pieces together drill holes eyelets Thread lead-out wires through holes glue tip wing Sand shape Position eyelets glue place tie ends 170 Model Aviation [ REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE Incoeporote J 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm 7ICHANGE TO RECHARG EARL Re lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo $3500 RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI J RC Reference YouwII Read Year Round wont gather dust R/C bookshelf youll Keep too busy workbench lap Because new Radio Control Buyers Guide 8th Edition design ed used year round planning projects locating hardto-find products getting ahad hobby Guide master reference work R/C product formation 8th edition features over 2500 RC Aircraft Cars Boats related products including hundreds new pro ducts recently released Toledo other major R/C shows highly descriptive information illustrated thousands photographs new double-listing format easier-than-ever use Newcomers will find Guide mind-jogging excursion seemingly endless possibilities R/C world wildest machines its devotees Models shown commercially available Get new Radio Control Buyers Guide 8th Edition Its R/C reference book youll read f wires time will done ifter engine installed Final-sand wing remove rough dges fuselage constructed like pro File models deviation nor nal practice installation bass vood reinforcement strip between up per lower fuselage pieces Refer Detail First cut out upper lower fuse age pieces Y-in balsa cut asswood strip Item 20 upper engine mount Item 22 correct lengths 3lue basswood strip lower Fuselage Item 19 Glue upper engine mount upper fuselage Item 18 iure lower surface engine mount flush bottom surface upper fuselage Cut balsa spacer Item 23 glue tin place Position upper fuselage lie lower fuselage Check V-in slot exists between upper fuselage ipacer must enough space stabilizer inserted Cut two round doublers Item 10 X6 plywood Drill A6-in hole through center doubler through lower fuselage Glue doublers asing A6-in wire hold pieces align ment remove wire before glue sets Make tail gear doublers Item 29 X6 plywood glue side lower fuselage glue has dried drill A-in hole front leg tail gear A-in hole tail gear mounting bolt Redrill X6-in hole through center round doublers Also outboard side fuselage drill A6-in hole Y-in deep doubler fuselage last hole located lower aft part outboard doubler will used locate #6 x X-in screw Sand fuselage its final shape Tail surfaces Make stabilizer Item 27 elevators Item 28 fin Item 25 rudder Item 26 A-in balsa Sand parts shape Glue rudder fin rudder trailing edge off set Connect left right eleva tors music wire Item 29 Secure wire elevators epoxy Cut slots elevators stabilizer hinges Insert hinges stabilizer glue place After glue dries slide elevators onto hinges glue place careful get glue hinge pivot areas Install control horn right elevator Assembly Slide stabilizer elevator assembly fuselage slot secure glue Next glue tail cone spacer Item 24 fuselage leaving equal space between elevators spacer Glue fin rudder assembly top fuselage Glue wing fuselage Glue fuselage chin Item 21 lower engine mount wing leading edge Sand rough edges joints glue plywood rein forcements Items 11 12 fuselage epoxy Position engine locate mounting holes Drill A-in holes mounting counter sinking larger holes inboard side blind nuts Position fuel tank drill 42-in mounting holes Install fuel tank retaining wires Bend elevator pushrod aligns appropriate hole elevator horn Screw threaded cotipler threaded link connect link elevator horn Cut elevator pushrod fit threaded coupler Solder pushrod coupler Install engine Screw threaded coupler onto threaded link refer Detail C Connect link engine throttle arm arm half-throttle position throttle bellcrank neutral position bend throttle pushrod align coupler Cut pushrod solder coupler Slide brass eyelets over lead-out wires glue wing tip epoxy Move throttle arm fullthrottle position Holding arm position tie ends lead-out wires shown Sheet 1 plans Hook installation Fabricate hook November1984 171 See Hobby Dealer dealer send $695 plus $200 postage handling 1BOYNTON & ASSOCIATES INC CLIFTON HOUSE CUFTON VA 22024 NEW MK 2 H & K SUPER STARTERS Look before leap original still best Has new larger clutch fully supported applications 90 day warranty new lower prices MODEL 1 Q-35 Q-50 ZENOAH ROPER MODEL 2Super Hustler MAG II MODEL 3Tartan Twin Super Twin Glow Manufactured Distributed P K Products PO Box 62260 Hayward CA 945400 415 581-4277 Add $150 postage handling Item 13 shown Sheet 1 plans Install hook fuselage shown Detail Install #6 x %-in screw A6-in hole drilled earlierscrew until protrudes 1A-in screw will used stop hook down position Wrap solder length A2-in music wire elevator pushrod bend hold tail hook up position Trim end wire hook will drop elevator full-down position see Detail B Item 20 Loop rubberband around hook engage screw extending round doubler Engage hook elevator pushrod recheck will drop full-down elevator Finishing Remove engine hook tail gear Cover wings silkspan equivalent material Paint upper part fuselage blue-gray lower part light gray plan shows approximate line separates colors upper part wing blue-gray bottom light gray canopy windows white Apply white fuselage lettering star insignias latter red white blue colors Apply 1 oz stick-on lead weight underside right wing tip stall engine fuel tank hook tail gear Check model balances within / center gravity CG loca tion shown Sheet 1 plans Apply nose tail weight needed achieve desired balance point Flying little Dauntless very stable flight lifts off deck very quickly settles down smooth high-speed flight Speeds 60 70 mph easily attained have flown Dauntless 70 mph take first place club contests Slowing down Dauntless lowspeed flight quite uneventful little ship requires small amount upelevator hold reduced speed practice can really get nose up correct throttle control being applied Landing best part Just pick Z495 $3295 $3995 Dealers inquiries invited spot chop throttle let settle Its easy make three-point landings model hope enjoy flying 15 Dauntless much have Happy landings ScannerlMarez Continued page 79 quickly possible crystals damaged soldering de-soldering like electronic components dont really like long sustained applica tions high temperatures Fortunately pins installed crystals cut off can re-use sockets after cleaning solder off Assuming interested couple new frequencies may opt solder new crystals point However interest cludes sockets should first talk about crystals little bit First former two types sockets available has same pin diameter spacing crystals will drop right hole printed circuit board Another has wide flat pins wider spacing will Both available Kraft Systems boardmounted type need point Part No 120-074 $300 other type use will described later Part No 120-141K $100 Small crystal sockets such something rarity dont bother looking Radio Shack small electronics supply houses Back crystals again recom mendation get Airtronics insist different source need HC-25/U type accept HC 18/U same size has long wires instead pins unless definitely intend solder Airtronics crystals come nice neat molded plastic cap identified colors channel numbers tremendous help especially have decided plug-in field changes ever cap too wide allow seven plug-in crystals space provided PC board can install sockets ProTt MO MOLDED STRONG -METAL FRAMEGREAT GIFT 5 FOAM FILLED Transmitter ection Case X PRICE $35 Include Shipping & Kondling US CA re odd 6% Send check yr 0 5 ERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 other position four plug-ins enough satisfy requirements can trim lip sides th molded cap narrows enough allow seven side-by-side crystals However previous men tion plug-in crystals will still need remove top cover whenever fre quency change required too slow involved constant changes required scanner ing used active contest situa tion will get worse new frequencies phased have developed ultimate update will now described Full-house update Basically will stall support-mounted crystal socket board high enough permit easy crystal identification changes clear plastic window will provided checking installed crystals new board being larger space initially used original crystal circuitry will require relocation speaker antenna mount Dont put off scary-sounding things recommended changes still mainly mechanical no volved electronics changes being required Start taking off top bottom covers rear panel Unsolder wires speaker antenna connec tor remove 12-volt power input jack panel Using small iron solder wick remove seven crystals board clean solder completely off pins best done applying bit paste solder flux heat wiping off melt ed solder rag careful leave solder bridges board dur ing desoldening operation make crystal socket board youll need piece 1-in spacing elec tronic prototype perforated board prefer ably epoxy-based type cheaper phenolic board acceptable though does drill cut cleanly epoxy strong Cut size 14 x 32 holes shown photo Referring again photo note locations new holes drill indicated Note 14 crystal 172 Model Aviation