BDF-1 replica earlier Half Pint originally meant single-channel RC plane proved unsuitable radios available 1940s Name comes workshop known years Balsa Dust Factory TWENTY YEARS ago wrote article build little plane called Quar ter Pint look closely plane youd notice BDF-1 strik ingly similar build again thrill Quarter Pint originally intended novice Junior modeler wants add little fun hum drum RC existence will get kick out Juniors want start out model avi ation becoming involved RC might find project particularly appealing sensible ways get RC starting stick-and-tissue model has stood test time youre sure will fly After build can get fly regularly have build larger add RC unit guide around sky So heres Quarter Pint againgiven new life BDF-1much better cause its design profits 20 years experience Gliders Old-Timers Elec trics sport fliers 1964 issue American Modeler Annual concise tory book chock-full ideas sport Free Flight carried picture Lou Garamis Half Pint somewhat larger BDF-l 1940 Lou commented its size small could carried 1011 flying site shopping bag aero modelist would spared embarrass ment explanations way field Jeers neighborhood kids truck drivers dogs will cease tuck Half Pint under arm set out field BDF- 1 intended replica Scale model Half Pint planned single-channel RC plane too small accommodate radios available forties developed Free Flight model started out side view Half Pint Later found construction ar ticle 1940 issue Air Trails took above quote made fuselage plane square rather diamond-shapedeven early con cept hoped make plan workable Junior modelers original model single wheel changed two order provide protection engine front plane wing built up empen nage sheet balsa used icc syringe fill fuel tank original Quarter Pint started en gine heaved plane blue sky flew about 30 50 ft gained speed lift climbed up 76 Model Aviation hold fuel tank upright two rings heat shrink tubing stretched over top tank adhered MonoKote heat gun Full-Size Plans Available. See Page 200 _ PR-SO YIREWOI9\ PROP 45 09 PSSRT OESIGNED& DOAWN1JI 0 loop top rolled out ever grace fully continued circling right-hand direction until fuel ran out point rudders took over plane circled left floated gently ground Recalling magical flights indel ibly impressed memory knew build anotherif send aloft catch days past before landed Construction suggest start kitting plane Look over parts list visit local hobby shop stock up everything already have around workshop Fuselage Build right fuselage side Pin V16 fuselage side filler plans add longerons crosspieces Build left side same manner Prop fuse lage filler up /46 above plans finish construction A-in-sq balsa Pin right side back plans glue formers F3 F4 place ensuring perpendicular side use UFO Thick Thin Satellite City really shortens wait ad hesives set up spray Kick-It cuts wait zero Glue left side place atop two formers Sew landing gear former Fl dicated plans Check location blind mounting nuts will secure engine firewall make sure landing gear doesnt interfere Remove fuselage plans sert former Fl glue place Drill firewall four blind mounting nuts fuselage side sheeting built during construction side pylon made three layers 1Ae sheeting two outside lay ers vertical inside layer horizontal stabilizer slides between two tail longerons twin rudders added after stab glued place give empennage extra strength run glue bead top bottom stabilizer fuselage fin December 1990 77 SAW RE STOCK OINEOROL BRACE IARPLV wing mount glued top pylon braced 14-in triangular stock blue version piece /a2 stock needed under leading edge added incidence pylon cemented between second fourth formers no F3 landing gear sewn heavy thread F2 glued between F2 firewall After spraying water painting dope mount wing blocks ana pin inc worKbench air may circulate reely dries Blocks under leading edge show Note bottom view wing shows center sheeting top dihedral doubler made %-in sheeting should worked back side firewall Add drop UFO hold place Add firewall fuse lage Level fuselage inserting block un der firewall pin fuselage plan top view Bring tail end together squeezing between two food cans pantry such way rims cans touching longeron lines plans Insert glue crosspieces top bottom tail end fuselage sert cross braces top bottom along whole fuselage Fill bottom area between Fl F2 1/16 sheet balsa Cut three pylon sec tions /16 sheet balsa sure check plans appropriate direction wood grain piece Laminate pieces using UFO Thick UFO Thick Kick-It work great laminating sheet balsa Put glue piece spray associated piece Kick-It carefully place together UFO will bond stantly Remove fuselage plans insert pylon between formers F2 F4 step important construction whole plane cidence wing determined proper location pylon Mark cen terline top both formers Measure plans top former top pylon measurements must duplicated plane Glue pylon place Add wing platform atop pylon brace A-in triangular stock whittled own short pieces /4 -in sq balsa Add %2-sq strips act dihedral fillers Drill holes add wing hold-down dowels nothin2 round toothpicks Using A6 sheet balsa fill area tween pylon longeron side fill between pylon former Fl Wing Using two pieces hacksaw blade taped together cut notches trail ing edge stock can tape gauge blades limit depth cut see drawing plans built wing piece cut half later Place waxed paper plastic wrap over plans pin trailing edge stock place Using ribs spacers pin center spar place Add ribs ex cept two center Wls glue Add glue leading edge spar glue has set cut wing two halves Remove pins holding half workbench prop tip end up three inches Check fit between spars No doubt bit sanding will nec essary Using edge workbench guide sand bevel wing half Check fit glue two halves gether glue has set remove wing plans insert dihedral brace glue securely side center spar wing tips can made very soft triangular stock can whittle soft sheet balsa Add A6 center sheeting little notch must cut first W2 wing ribs accommodate sheeting Assembly Very carefully sand whole plane use 2 x 9 x A-in ply blocks width sheets sandpaper glue various grades sandpaper next step seems bamboozle builders Cover plane tissue Its tough may think Go over whole plane thick dope Use just comes out bottle Apply three coats allowing drying time between Lets start bottom wing Tear corner sheet tissue see direction tears easily called spanwise direction length wing fuselage elevator should cov ered spanwise Cut piece tissue about er sides area covered Ready small brush bottle dope thin ner Lay tissue bottom wing run line thinner across tis sue touches centerline wing Using fingertip rub tissue dope will come up through paper will dry almost instantly Once its dry can stretch paper spanwise attach same way tip wing Again dope dries stretch paper over bottom wing tip neces sary add thinner stretch rub paper down fingertip Use same maneuver leading trailing edge spars pulling paper tight go Allow whole thing dry youre working other wing half its finished use sharp single edge razor blade trim paper back Continued page 182 78 Model Aviation SMASH BASH ITS CRAZY AND HILARIOUS YOULL LOVE IT EVER WISH YOU HAD CAMERA WHEN THAT SPECIAL CRASH OCCU RED OR WHEN SOME CRAZY THING HAPPENED UNEXPECTEDLY WELL WEVE CAPTURED 30 MINUTES OF THOSE MOMENTS WATCH AS PT BOATS DEPTH CHARGE NEARLY DESTROYS CHOPPER SEE 14 SCALE LEAR JET HOVER TO ITS DEATH CRASH AFTER CRASH SLOW MOTION CLOSE CALLS AND MUCH MUCH MORE HURRY THIS VIDEO IS HOT AND IN LIMITED SUPPLY SEND CHECK OR MONEY ORDER FOR ONLY $1950 TO CJ ELECTRONICS 401 N MAIN ST 290A WILLIAMSTOWN NJ 08094 WE PAY SHIPPING & HANDLING NJ RESIDENTS ADO 706 SALES TAX SORRY NO CODS settling second Phil Granderdog undoing several other big-time com petitors including Michael Willcox Vaca yule Money Meet winner Steve Stewart over $15000 pickup-truck bedful stereo prizes its no wonder people drawn classic among Combat meets As usual organization very good site roomy well preparedand above safe scary moment cut away model hit pitman leg Luckily foam wing rather engine did hitting circle marshal used throughout meet ensure pilots stayed circle close together during line tangles DQ sawing lines otherwise making things diffi cult processing commendably tight lines checked diameter length condition case unfortunately meets emphasis safety made differ ence probably provides benefit written rules world could Kelly Crozier brought fuel shutoff model Bladder Grabber inspection model flying lines weight wing tip pulls wire holds pinchoff open model gets cut away weight will no longer pulling against trip wire small rubberband will have sufficient force job Its similar swing weight valves used AMA Slow Rats centrifugal force opens valve model gets up speed Does work betcha Frank Boden re ports Airwaves newsletter British Colum bia Kelly friends tested remote site Using measured quantity fuel wouldnt lose model didnt wor9 cut lines appropriate moment model veered outside circle immedi ately quit fell harmlessly back earth Kellys design could refined pretty com pact unit wouldnt add few grams weight model dreaded Canadian contingent may have come through solution glaring problem facing Fast Combat Also seen Bladder Grabber old friend Rich Porter Northwest Terror putting demonstrations whip model can picture unpowered Stunter string attached short pole Great kids some good exercise adults Rich also 15-powered 600-sq-in model action features Combat-style con struction lightness tuned pipe risingrate control system system features very slow insensitive control around neutral increasing rate crank Up Down system really appeals us dont like use lot handle movement same time dont want touchy control near neutral Ive speed up controls models because after three four flights wrist arm lose just enough quick ness necessary miss ground opponent Quick controls mean too much elevator move ment unless stops used Until Rich brought out special bellcrank thing get used giving full control swer whether works 110 mph well 50 mph will have wait until next time proper test can done Whos hot latest issue MACA news letter showed Alan Deveuve leading points battle champion 60 points followed Tom Fluker 46 1989 champion Paul Smith 45 Alan has using Mark Smiths products described above Fast model par Hills Arrowplane hes planning make PAl version team trials Gary Frost commented newsletter goes out PAl competitors may have adopt European flying style want win over think Gary probably right love wiggle-waggle style use cant say same tactical line tangles midairs Remember days wrap punch artist AMA Combat think relieved running-around-the-circle style didnt catch USA Euros seem have forgotten too BDF-1 /Denson Continued page 78 balsa wood Using dope-filled brush go over edges paper make sure everything stuck down piece fine sandpaper around edges will remove ragged bits tissue smooth down dope Use same process cover top wing wing fully covered youre ready shrink paper Gather some straight pins some pieces soft balsa same thickness Using spray bottle mister spray-wet bottom half wing pin workbench small balsa pieces should 182 Model Aviation CRASH READYTOFLYTOPGUN 1/8 SCALE H/C C/b F/F YOU WANT TO R0111 SETTER MOORS FROM START TO FIRISH nSAVt TIME RHO EFFORT HAVE MUCH MORE FART o SHARPER YOUR SEILLS GET MORE SATISFACTION thee secrets MORE have vow revealed withour FIRISHING FRIEND SYSTEM recejee complete PHOTO illustrated brochure FIRISHIRO FRItNO can change look hohby please seod lout SASE Qattsmc~ Models ln 1311 C 161st Street Westfield Indiana 46074 Build just model using FINISHING FRIEND yavil never huild another used spacers air can get under wing Pinning wing workbench dries will prevent warping its dry repeat process four sides sealing paper diluted dope can dope both sides same wing half before pin workbench Cover fuselage similar manner balsa filler under paper apply thinner smooth paper fingertip open apply thinner around edges center will shrink water added later Cover whole empennage tissue wet thinner rub tissue until dope comes through use sandpaper remove excess tissue around edges As sand edges tissue will part fall off Give surfaces plane two coats dope diluted 11 Sand lightly between coats 400 wet dry sandpaper Trim plane like done Super MonoKote Trim Sheet Slide stabilizer between two longe rons tail end fuselage glue place Glue vertical fin end stabilizer run glue bead top bottom stabilizer meets fuselage juxtaposition stab fin gives whole empennage extra strength firewall designed give downthrust necessary youll have add side thrust As bolt engine fire wall place couple washers between back engine firewall left side viewed imaginary pilot Drill hole fuel tank location hole very important must pass between two bolts hold backplate tank crankcase see photo tank has hole other side too Its evidence failed locate hole properly first try course once drill hole tank wont hurt drill two dont get posi tioned exactly first crack youve got another try coming ever want use engine tank youll need get new theyre too expensive acquired foot A-in fuel tubing medicine dropper hobby shop Using propane torch manner chemist heated glass tubing stretched new end around A-in plastic tubing would fit shortened medicine dropper tied strip hardwood fastened firewall made plane yellow used little strips heat shrink tubing hold drop per riser picture pretty much self-explanatory process much easier see explain plans Fill medicine dropper tank fuel extract bit syringe prime engine wind up spring off goes Watch fuel level bottom string launch plane time launch determination must make self after few launches will have PO Box 299 Gonzales TX 78629 5121 672-7023 225 pus stunning Hardware Included Now Fully Sheeted Rec Engine 90- 108 Two Stroke 120 Four Stroke Wing Span 72 Area 875 oximate Weight 9- 11 lbs THE FIRST PRECISION-ENGINEERED ENGINE MOUNT tte PROVIDES VIBRATION-DAMPING SOFT MOUNTING USA WITHOUT EXCESSIVE ENGINE SHAKE AT LOW RPM soft mounting excessive engine shake low RPM due damped nonlinear forcedisplacement characteristics mounting system Vibration mounts loaded compression shear Thrust forces cant cause tension failures Constructed aluminum oil resistant elastomer Safety featureunique mount design captures engine airframe Light weightless standard aluminum hard mount Allows lighter front end construction Radial beam mounts available 40-65 7011 12-18 cu sizes hardware complete installation instructions included 60-day no-risk money-back guarantee direct orders 19s Rad jal Meant $ 4055hws 75, six $0495 sossa oflware10319 Pine Pass Drive Houston TXritP1ThtmSW] ociates visastzoasI coos zurqssnl oatzn isqsiisns vtIcosz o nsa sxax,s ixsass,vx December 1990 183 D&R F4U Sport Scale Corsair Beam Meant$ 4065 size 75IISRO $5695 luissIze $0195 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need package Cycler-Chargec $23996 o Fits 48V Ra 96V Ta packsPlus $6 S&HceGelled Cell Others available write caIll Trickier$3495%CY1tRegular Model- $4695 ForPlus $3 S&Hc4 d kit smallPlus $3 S&H electric boat batteriesSpecify 6 12 24V Heavy Duty Model$5896 sport winch large boat andPlus $4 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsSEf~iea ox 221 605-987-5924Dear inqurnes invitedCanton SD 57013 SUCKER-KIT$5995 Show & Tell Video$3995 -Add $400 shipping & handling MI residents add 4O/ sales tax C nd Si SASE br product list asamples oh real wood veneer skins Product List lijcIudes Gapless Arrow Shalt HInges Carbon Tow Mylar Sheet Eand High-Tech items ac -O ler Inquires Welcome C ND CHECK DR MONEY ORDER TO COa P0 Box866 Lapeer Ml 48446 0 a C 0 a 313 664-3330 Composite Aircraft Eng & Supply FAX 664-9780 Kraft Midwest Inc 115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Special Agreement RCD Rxs 50 & 53 Mhz Complete 6m conversion Available Littlest Miracle Workshop PROFE TOOL SUITABLESend 5O FOR ALLfor catalog HOBBIES AND CRAFTS Makers of. Mini-Glue Tips Stray- Tray Tee Bar Mini-Saw Ruff-Stuff & Jewel Stripes down pat picture shows prop po sitioned correctly turned prop back wards first few launches slow down plane order get trimmed properly Later turned prop around Flying under circumstances launch BDF-l full tank fuel APPLIED DESIGN CORP PO Box 3384 Torrance CA 90510 An engine run length will put plane out sight overhead First check center-of-gravity should marked plans about two-thirds wing chord few test flights will necessary windless day find flat soft location such football baseball field Hold plane over head walk fast run until plane wants lift out hand Launch forward level stop watch floats straight out drops slowly ground rolls stop perfect dives bit stalls changes wing incidence necessary cut strips /16 sheet balsa crack match dihedral place between either front back wing wing saddle plane dives place under forward edge stalls put spacer under trailing edge wing theres breeze launch plane Otherwise launch straight out As plane picks up speed will gain lift start climb same time right thrust will pull right plane will climb back toward right spiral should top out after second turn en gine should quit plane loses speed rudders take over plane will figure-eight left spiral float downward perfect flight just turn around reach up plane will hand did once three times row thrill weve remembered af ter years Free Flight experts Most time spent RC So bit difficulty initial flights werent immediately sure correct problem plane started off climbed bit got up speed right thrust put steep right bank did recover tried fix cranking goodly amount left rudder put BDF 1 left death-spiral bunch broken props later came upon magic formula Notice plans tab right wing tip tab made cardboard light aluminum will keep plane doing right spiral Just bend tab down bit correct maneuver now understand washin will accomplish same thing give tiny bit left trim left rud der leave right alone Make changes tiny increments until plane flies should wish wed Free Flight expert available tell us some ways BDF-l same old plane built years ago some ways least us RCers its return stick-and-tissue new flying Free Flight again new playing engine doesnt start RC engine does hit starterwell thats new too thrill new So youre novice wants graduate all-balsa wind-up planes rea sonably priced glow engine power try youre dyed-in-the-wool RC pilot give BDF-l try think youll find welcome change responding advertisers mention read about ModelAviation 184 Model Aviation Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz ectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 120F 10 Khz spacing Bandwidth 1- 85 khz 60db down 301P 3db Image 60db down List Prices Special War Speed Service Exceeds AMi Rx Guidelines 4 Channel$9495 5 Channel$9995 6 Channel$10495 7 Channel$10995 Pro-Line Units Negative Pulse add $1000 Dealers Discounts available Rx Trade $5-Sb NEW Floria Flyers STUNT WAGON New Only $5995 Wing Span 50 Area- 786 sq th 405 Power 25 40 ci gn Weight -3 4 lbs Features maple engine rails band-sewn pans formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout Designed flown computer radloel Radical design performance conventIonal construction competItion Fun Fly contender Ask Floric Flyer STUNT WAGON favorite hobby shop first direct orders add $4 Se-H per kit Z Send free Florio Flyer catalog VISA & MC accepted PA Residents add 6% sales tax Florio Flyer Corp 837 Johnsonburg Rd. St Marys PA 15857w t814 834-2586 $275 epl strips Add 20% postage
Edition: Model Aviation - 1990/12
Page Numbers: 76, 77, 78, 182, 183, 184
BDF-1 replica earlier Half Pint originally meant single-channel RC plane proved unsuitable radios available 1940s Name comes workshop known years Balsa Dust Factory TWENTY YEARS ago wrote article build little plane called Quar ter Pint look closely plane youd notice BDF-1 strik ingly similar build again thrill Quarter Pint originally intended novice Junior modeler wants add little fun hum drum RC existence will get kick out Juniors want start out model avi ation becoming involved RC might find project particularly appealing sensible ways get RC starting stick-and-tissue model has stood test time youre sure will fly After build can get fly regularly have build larger add RC unit guide around sky So heres Quarter Pint againgiven new life BDF-1much better cause its design profits 20 years experience Gliders Old-Timers Elec trics sport fliers 1964 issue American Modeler Annual concise tory book chock-full ideas sport Free Flight carried picture Lou Garamis Half Pint somewhat larger BDF-l 1940 Lou commented its size small could carried 1011 flying site shopping bag aero modelist would spared embarrass ment explanations way field Jeers neighborhood kids truck drivers dogs will cease tuck Half Pint under arm set out field BDF- 1 intended replica Scale model Half Pint planned single-channel RC plane too small accommodate radios available forties developed Free Flight model started out side view Half Pint Later found construction ar ticle 1940 issue Air Trails took above quote made fuselage plane square rather diamond-shapedeven early con cept hoped make plan workable Junior modelers original model single wheel changed two order provide protection engine front plane wing built up empen nage sheet balsa used icc syringe fill fuel tank original Quarter Pint started en gine heaved plane blue sky flew about 30 50 ft gained speed lift climbed up 76 Model Aviation hold fuel tank upright two rings heat shrink tubing stretched over top tank adhered MonoKote heat gun Full-Size Plans Available. See Page 200 _ PR-SO YIREWOI9\ PROP 45 09 PSSRT OESIGNED& DOAWN1JI 0 loop top rolled out ever grace fully continued circling right-hand direction until fuel ran out point rudders took over plane circled left floated gently ground Recalling magical flights indel ibly impressed memory knew build anotherif send aloft catch days past before landed Construction suggest start kitting plane Look over parts list visit local hobby shop stock up everything already have around workshop Fuselage Build right fuselage side Pin V16 fuselage side filler plans add longerons crosspieces Build left side same manner Prop fuse lage filler up /46 above plans finish construction A-in-sq balsa Pin right side back plans glue formers F3 F4 place ensuring perpendicular side use UFO Thick Thin Satellite City really shortens wait ad hesives set up spray Kick-It cuts wait zero Glue left side place atop two formers Sew landing gear former Fl dicated plans Check location blind mounting nuts will secure engine firewall make sure landing gear doesnt interfere Remove fuselage plans sert former Fl glue place Drill firewall four blind mounting nuts fuselage side sheeting built during construction side pylon made three layers 1Ae sheeting two outside lay ers vertical inside layer horizontal stabilizer slides between two tail longerons twin rudders added after stab glued place give empennage extra strength run glue bead top bottom stabilizer fuselage fin December 1990 77 SAW RE STOCK OINEOROL BRACE IARPLV wing mount glued top pylon braced 14-in triangular stock blue version piece /a2 stock needed under leading edge added incidence pylon cemented between second fourth formers no F3 landing gear sewn heavy thread F2 glued between F2 firewall After spraying water painting dope mount wing blocks ana pin inc worKbench air may circulate reely dries Blocks under leading edge show Note bottom view wing shows center sheeting top dihedral doubler made %-in sheeting should worked back side firewall Add drop UFO hold place Add firewall fuse lage Level fuselage inserting block un der firewall pin fuselage plan top view Bring tail end together squeezing between two food cans pantry such way rims cans touching longeron lines plans Insert glue crosspieces top bottom tail end fuselage sert cross braces top bottom along whole fuselage Fill bottom area between Fl F2 1/16 sheet balsa Cut three pylon sec tions /16 sheet balsa sure check plans appropriate direction wood grain piece Laminate pieces using UFO Thick UFO Thick Kick-It work great laminating sheet balsa Put glue piece spray associated piece Kick-It carefully place together UFO will bond stantly Remove fuselage plans insert pylon between formers F2 F4 step important construction whole plane cidence wing determined proper location pylon Mark cen terline top both formers Measure plans top former top pylon measurements must duplicated plane Glue pylon place Add wing platform atop pylon brace A-in triangular stock whittled own short pieces /4 -in sq balsa Add %2-sq strips act dihedral fillers Drill holes add wing hold-down dowels nothin2 round toothpicks Using A6 sheet balsa fill area tween pylon longeron side fill between pylon former Fl Wing Using two pieces hacksaw blade taped together cut notches trail ing edge stock can tape gauge blades limit depth cut see drawing plans built wing piece cut half later Place waxed paper plastic wrap over plans pin trailing edge stock place Using ribs spacers pin center spar place Add ribs ex cept two center Wls glue Add glue leading edge spar glue has set cut wing two halves Remove pins holding half workbench prop tip end up three inches Check fit between spars No doubt bit sanding will nec essary Using edge workbench guide sand bevel wing half Check fit glue two halves gether glue has set remove wing plans insert dihedral brace glue securely side center spar wing tips can made very soft triangular stock can whittle soft sheet balsa Add A6 center sheeting little notch must cut first W2 wing ribs accommodate sheeting Assembly Very carefully sand whole plane use 2 x 9 x A-in ply blocks width sheets sandpaper glue various grades sandpaper next step seems bamboozle builders Cover plane tissue Its tough may think Go over whole plane thick dope Use just comes out bottle Apply three coats allowing drying time between Lets start bottom wing Tear corner sheet tissue see direction tears easily called spanwise direction length wing fuselage elevator should cov ered spanwise Cut piece tissue about er sides area covered Ready small brush bottle dope thin ner Lay tissue bottom wing run line thinner across tis sue touches centerline wing Using fingertip rub tissue dope will come up through paper will dry almost instantly Once its dry can stretch paper spanwise attach same way tip wing Again dope dries stretch paper over bottom wing tip neces sary add thinner stretch rub paper down fingertip Use same maneuver leading trailing edge spars pulling paper tight go Allow whole thing dry youre working other wing half its finished use sharp single edge razor blade trim paper back Continued page 182 78 Model Aviation SMASH BASH ITS CRAZY AND HILARIOUS YOULL LOVE IT EVER WISH YOU HAD CAMERA WHEN THAT SPECIAL CRASH OCCU RED OR WHEN SOME CRAZY THING HAPPENED UNEXPECTEDLY WELL WEVE CAPTURED 30 MINUTES OF THOSE MOMENTS WATCH AS PT BOATS DEPTH CHARGE NEARLY DESTROYS CHOPPER SEE 14 SCALE LEAR JET HOVER TO ITS DEATH CRASH AFTER CRASH SLOW MOTION CLOSE CALLS AND MUCH MUCH MORE HURRY THIS VIDEO IS HOT AND IN LIMITED SUPPLY SEND CHECK OR MONEY ORDER FOR ONLY $1950 TO CJ ELECTRONICS 401 N MAIN ST 290A WILLIAMSTOWN NJ 08094 WE PAY SHIPPING & HANDLING NJ RESIDENTS ADO 706 SALES TAX SORRY NO CODS settling second Phil Granderdog undoing several other big-time com petitors including Michael Willcox Vaca yule Money Meet winner Steve Stewart over $15000 pickup-truck bedful stereo prizes its no wonder people drawn classic among Combat meets As usual organization very good site roomy well preparedand above safe scary moment cut away model hit pitman leg Luckily foam wing rather engine did hitting circle marshal used throughout meet ensure pilots stayed circle close together during line tangles DQ sawing lines otherwise making things diffi cult processing commendably tight lines checked diameter length condition case unfortunately meets emphasis safety made differ ence probably provides benefit written rules world could Kelly Crozier brought fuel shutoff model Bladder Grabber inspection model flying lines weight wing tip pulls wire holds pinchoff open model gets cut away weight will no longer pulling against trip wire small rubberband will have sufficient force job Its similar swing weight valves used AMA Slow Rats centrifugal force opens valve model gets up speed Does work betcha Frank Boden re ports Airwaves newsletter British Colum bia Kelly friends tested remote site Using measured quantity fuel wouldnt lose model didnt wor9 cut lines appropriate moment model veered outside circle immedi ately quit fell harmlessly back earth Kellys design could refined pretty com pact unit wouldnt add few grams weight model dreaded Canadian contingent may have come through solution glaring problem facing Fast Combat Also seen Bladder Grabber old friend Rich Porter Northwest Terror putting demonstrations whip model can picture unpowered Stunter string attached short pole Great kids some good exercise adults Rich also 15-powered 600-sq-in model action features Combat-style con struction lightness tuned pipe risingrate control system system features very slow insensitive control around neutral increasing rate crank Up Down system really appeals us dont like use lot handle movement same time dont want touchy control near neutral Ive speed up controls models because after three four flights wrist arm lose just enough quick ness necessary miss ground opponent Quick controls mean too much elevator move ment unless stops used Until Rich brought out special bellcrank thing get used giving full control swer whether works 110 mph well 50 mph will have wait until next time proper test can done Whos hot latest issue MACA news letter showed Alan Deveuve leading points battle champion 60 points followed Tom Fluker 46 1989 champion Paul Smith 45 Alan has using Mark Smiths products described above Fast model par Hills Arrowplane hes planning make PAl version team trials Gary Frost commented newsletter goes out PAl competitors may have adopt European flying style want win over think Gary probably right love wiggle-waggle style use cant say same tactical line tangles midairs Remember days wrap punch artist AMA Combat think relieved running-around-the-circle style didnt catch USA Euros seem have forgotten too BDF-1 /Denson Continued page 78 balsa wood Using dope-filled brush go over edges paper make sure everything stuck down piece fine sandpaper around edges will remove ragged bits tissue smooth down dope Use same process cover top wing wing fully covered youre ready shrink paper Gather some straight pins some pieces soft balsa same thickness Using spray bottle mister spray-wet bottom half wing pin workbench small balsa pieces should 182 Model Aviation CRASH READYTOFLYTOPGUN 1/8 SCALE H/C C/b F/F YOU WANT TO R0111 SETTER MOORS FROM START TO FIRISH nSAVt TIME RHO EFFORT HAVE MUCH MORE FART o SHARPER YOUR SEILLS GET MORE SATISFACTION thee secrets MORE have vow revealed withour FIRISHING FRIEND SYSTEM recejee complete PHOTO illustrated brochure FIRISHIRO FRItNO can change look hohby please seod lout SASE Qattsmc~ Models ln 1311 C 161st Street Westfield Indiana 46074 Build just model using FINISHING FRIEND yavil never huild another used spacers air can get under wing Pinning wing workbench dries will prevent warping its dry repeat process four sides sealing paper diluted dope can dope both sides same wing half before pin workbench Cover fuselage similar manner balsa filler under paper apply thinner smooth paper fingertip open apply thinner around edges center will shrink water added later Cover whole empennage tissue wet thinner rub tissue until dope comes through use sandpaper remove excess tissue around edges As sand edges tissue will part fall off Give surfaces plane two coats dope diluted 11 Sand lightly between coats 400 wet dry sandpaper Trim plane like done Super MonoKote Trim Sheet Slide stabilizer between two longe rons tail end fuselage glue place Glue vertical fin end stabilizer run glue bead top bottom stabilizer meets fuselage juxtaposition stab fin gives whole empennage extra strength firewall designed give downthrust necessary youll have add side thrust As bolt engine fire wall place couple washers between back engine firewall left side viewed imaginary pilot Drill hole fuel tank location hole very important must pass between two bolts hold backplate tank crankcase see photo tank has hole other side too Its evidence failed locate hole properly first try course once drill hole tank wont hurt drill two dont get posi tioned exactly first crack youve got another try coming ever want use engine tank youll need get new theyre too expensive acquired foot A-in fuel tubing medicine dropper hobby shop Using propane torch manner chemist heated glass tubing stretched new end around A-in plastic tubing would fit shortened medicine dropper tied strip hardwood fastened firewall made plane yellow used little strips heat shrink tubing hold drop per riser picture pretty much self-explanatory process much easier see explain plans Fill medicine dropper tank fuel extract bit syringe prime engine wind up spring off goes Watch fuel level bottom string launch plane time launch determination must make self after few launches will have PO Box 299 Gonzales TX 78629 5121 672-7023 225 pus stunning Hardware Included Now Fully Sheeted Rec Engine 90- 108 Two Stroke 120 Four Stroke Wing Span 72 Area 875 oximate Weight 9- 11 lbs THE FIRST PRECISION-ENGINEERED ENGINE MOUNT tte PROVIDES VIBRATION-DAMPING SOFT MOUNTING USA WITHOUT EXCESSIVE ENGINE SHAKE AT LOW RPM soft mounting excessive engine shake low RPM due damped nonlinear forcedisplacement characteristics mounting system Vibration mounts loaded compression shear Thrust forces cant cause tension failures Constructed aluminum oil resistant elastomer Safety featureunique mount design captures engine airframe Light weightless standard aluminum hard mount Allows lighter front end construction Radial beam mounts available 40-65 7011 12-18 cu sizes hardware complete installation instructions included 60-day no-risk money-back guarantee direct orders 19s Rad jal Meant $ 4055hws 75, six $0495 sossa oflware10319 Pine Pass Drive Houston TXritP1ThtmSW] ociates visastzoasI coos zurqssnl oatzn isqsiisns vtIcosz o nsa sxax,s ixsass,vx December 1990 183 D&R F4U Sport Scale Corsair Beam Meant$ 4065 size 75IISRO $5695 luissIze $0195 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need package Cycler-Chargec $23996 o Fits 48V Ra 96V Ta packsPlus $6 S&HceGelled Cell Others available write caIll Trickier$3495%CY1tRegular Model- $4695 ForPlus $3 S&Hc4 d kit smallPlus $3 S&H electric boat batteriesSpecify 6 12 24V Heavy Duty Model$5896 sport winch large boat andPlus $4 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsSEf~iea ox 221 605-987-5924Dear inqurnes invitedCanton SD 57013 SUCKER-KIT$5995 Show & Tell Video$3995 -Add $400 shipping & handling MI residents add 4O/ sales tax C nd Si SASE br product list asamples oh real wood veneer skins Product List lijcIudes Gapless Arrow Shalt HInges Carbon Tow Mylar Sheet Eand High-Tech items ac -O ler Inquires Welcome C ND CHECK DR MONEY ORDER TO COa P0 Box866 Lapeer Ml 48446 0 a C 0 a 313 664-3330 Composite Aircraft Eng & Supply FAX 664-9780 Kraft Midwest Inc 115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Special Agreement RCD Rxs 50 & 53 Mhz Complete 6m conversion Available Littlest Miracle Workshop PROFE TOOL SUITABLESend 5O FOR ALLfor catalog HOBBIES AND CRAFTS Makers of. Mini-Glue Tips Stray- Tray Tee Bar Mini-Saw Ruff-Stuff & Jewel Stripes down pat picture shows prop po sitioned correctly turned prop back wards first few launches slow down plane order get trimmed properly Later turned prop around Flying under circumstances launch BDF-l full tank fuel APPLIED DESIGN CORP PO Box 3384 Torrance CA 90510 An engine run length will put plane out sight overhead First check center-of-gravity should marked plans about two-thirds wing chord few test flights will necessary windless day find flat soft location such football baseball field Hold plane over head walk fast run until plane wants lift out hand Launch forward level stop watch floats straight out drops slowly ground rolls stop perfect dives bit stalls changes wing incidence necessary cut strips /16 sheet balsa crack match dihedral place between either front back wing wing saddle plane dives place under forward edge stalls put spacer under trailing edge wing theres breeze launch plane Otherwise launch straight out As plane picks up speed will gain lift start climb same time right thrust will pull right plane will climb back toward right spiral should top out after second turn en gine should quit plane loses speed rudders take over plane will figure-eight left spiral float downward perfect flight just turn around reach up plane will hand did once three times row thrill weve remembered af ter years Free Flight experts Most time spent RC So bit difficulty initial flights werent immediately sure correct problem plane started off climbed bit got up speed right thrust put steep right bank did recover tried fix cranking goodly amount left rudder put BDF 1 left death-spiral bunch broken props later came upon magic formula Notice plans tab right wing tip tab made cardboard light aluminum will keep plane doing right spiral Just bend tab down bit correct maneuver now understand washin will accomplish same thing give tiny bit left trim left rud der leave right alone Make changes tiny increments until plane flies should wish wed Free Flight expert available tell us some ways BDF-l same old plane built years ago some ways least us RCers its return stick-and-tissue new flying Free Flight again new playing engine doesnt start RC engine does hit starterwell thats new too thrill new So youre novice wants graduate all-balsa wind-up planes rea sonably priced glow engine power try youre dyed-in-the-wool RC pilot give BDF-l try think youll find welcome change responding advertisers mention read about ModelAviation 184 Model Aviation Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz ectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 120F 10 Khz spacing Bandwidth 1- 85 khz 60db down 301P 3db Image 60db down List Prices Special War Speed Service Exceeds AMi Rx Guidelines 4 Channel$9495 5 Channel$9995 6 Channel$10495 7 Channel$10995 Pro-Line Units Negative Pulse add $1000 Dealers Discounts available Rx Trade $5-Sb NEW Floria Flyers STUNT WAGON New Only $5995 Wing Span 50 Area- 786 sq th 405 Power 25 40 ci gn Weight -3 4 lbs Features maple engine rails band-sewn pans formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout Designed flown computer radloel Radical design performance conventIonal construction competItion Fun Fly contender Ask Floric Flyer STUNT WAGON favorite hobby shop first direct orders add $4 Se-H per kit Z Send free Florio Flyer catalog VISA & MC accepted PA Residents add 6% sales tax Florio Flyer Corp 837 Johnsonburg Rd. St Marys PA 15857w t814 834-2586 $275 epl strips Add 20% postage
Edition: Model Aviation - 1990/12
Page Numbers: 76, 77, 78, 182, 183, 184
BDF-1 replica earlier Half Pint originally meant single-channel RC plane proved unsuitable radios available 1940s Name comes workshop known years Balsa Dust Factory TWENTY YEARS ago wrote article build little plane called Quar ter Pint look closely plane youd notice BDF-1 strik ingly similar build again thrill Quarter Pint originally intended novice Junior modeler wants add little fun hum drum RC existence will get kick out Juniors want start out model avi ation becoming involved RC might find project particularly appealing sensible ways get RC starting stick-and-tissue model has stood test time youre sure will fly After build can get fly regularly have build larger add RC unit guide around sky So heres Quarter Pint againgiven new life BDF-1much better cause its design profits 20 years experience Gliders Old-Timers Elec trics sport fliers 1964 issue American Modeler Annual concise tory book chock-full ideas sport Free Flight carried picture Lou Garamis Half Pint somewhat larger BDF-l 1940 Lou commented its size small could carried 1011 flying site shopping bag aero modelist would spared embarrass ment explanations way field Jeers neighborhood kids truck drivers dogs will cease tuck Half Pint under arm set out field BDF- 1 intended replica Scale model Half Pint planned single-channel RC plane too small accommodate radios available forties developed Free Flight model started out side view Half Pint Later found construction ar ticle 1940 issue Air Trails took above quote made fuselage plane square rather diamond-shapedeven early con cept hoped make plan workable Junior modelers original model single wheel changed two order provide protection engine front plane wing built up empen nage sheet balsa used icc syringe fill fuel tank original Quarter Pint started en gine heaved plane blue sky flew about 30 50 ft gained speed lift climbed up 76 Model Aviation hold fuel tank upright two rings heat shrink tubing stretched over top tank adhered MonoKote heat gun Full-Size Plans Available. See Page 200 _ PR-SO YIREWOI9\ PROP 45 09 PSSRT OESIGNED& DOAWN1JI 0 loop top rolled out ever grace fully continued circling right-hand direction until fuel ran out point rudders took over plane circled left floated gently ground Recalling magical flights indel ibly impressed memory knew build anotherif send aloft catch days past before landed Construction suggest start kitting plane Look over parts list visit local hobby shop stock up everything already have around workshop Fuselage Build right fuselage side Pin V16 fuselage side filler plans add longerons crosspieces Build left side same manner Prop fuse lage filler up /46 above plans finish construction A-in-sq balsa Pin right side back plans glue formers F3 F4 place ensuring perpendicular side use UFO Thick Thin Satellite City really shortens wait ad hesives set up spray Kick-It cuts wait zero Glue left side place atop two formers Sew landing gear former Fl dicated plans Check location blind mounting nuts will secure engine firewall make sure landing gear doesnt interfere Remove fuselage plans sert former Fl glue place Drill firewall four blind mounting nuts fuselage side sheeting built during construction side pylon made three layers 1Ae sheeting two outside lay ers vertical inside layer horizontal stabilizer slides between two tail longerons twin rudders added after stab glued place give empennage extra strength run glue bead top bottom stabilizer fuselage fin December 1990 77 SAW RE STOCK OINEOROL BRACE IARPLV wing mount glued top pylon braced 14-in triangular stock blue version piece /a2 stock needed under leading edge added incidence pylon cemented between second fourth formers no F3 landing gear sewn heavy thread F2 glued between F2 firewall After spraying water painting dope mount wing blocks ana pin inc worKbench air may circulate reely dries Blocks under leading edge show Note bottom view wing shows center sheeting top dihedral doubler made %-in sheeting should worked back side firewall Add drop UFO hold place Add firewall fuse lage Level fuselage inserting block un der firewall pin fuselage plan top view Bring tail end together squeezing between two food cans pantry such way rims cans touching longeron lines plans Insert glue crosspieces top bottom tail end fuselage sert cross braces top bottom along whole fuselage Fill bottom area between Fl F2 1/16 sheet balsa Cut three pylon sec tions /16 sheet balsa sure check plans appropriate direction wood grain piece Laminate pieces using UFO Thick UFO Thick Kick-It work great laminating sheet balsa Put glue piece spray associated piece Kick-It carefully place together UFO will bond stantly Remove fuselage plans insert pylon between formers F2 F4 step important construction whole plane cidence wing determined proper location pylon Mark cen terline top both formers Measure plans top former top pylon measurements must duplicated plane Glue pylon place Add wing platform atop pylon brace A-in triangular stock whittled own short pieces /4 -in sq balsa Add %2-sq strips act dihedral fillers Drill holes add wing hold-down dowels nothin2 round toothpicks Using A6 sheet balsa fill area tween pylon longeron side fill between pylon former Fl Wing Using two pieces hacksaw blade taped together cut notches trail ing edge stock can tape gauge blades limit depth cut see drawing plans built wing piece cut half later Place waxed paper plastic wrap over plans pin trailing edge stock place Using ribs spacers pin center spar place Add ribs ex cept two center Wls glue Add glue leading edge spar glue has set cut wing two halves Remove pins holding half workbench prop tip end up three inches Check fit between spars No doubt bit sanding will nec essary Using edge workbench guide sand bevel wing half Check fit glue two halves gether glue has set remove wing plans insert dihedral brace glue securely side center spar wing tips can made very soft triangular stock can whittle soft sheet balsa Add A6 center sheeting little notch must cut first W2 wing ribs accommodate sheeting Assembly Very carefully sand whole plane use 2 x 9 x A-in ply blocks width sheets sandpaper glue various grades sandpaper next step seems bamboozle builders Cover plane tissue Its tough may think Go over whole plane thick dope Use just comes out bottle Apply three coats allowing drying time between Lets start bottom wing Tear corner sheet tissue see direction tears easily called spanwise direction length wing fuselage elevator should cov ered spanwise Cut piece tissue about er sides area covered Ready small brush bottle dope thin ner Lay tissue bottom wing run line thinner across tis sue touches centerline wing Using fingertip rub tissue dope will come up through paper will dry almost instantly Once its dry can stretch paper spanwise attach same way tip wing Again dope dries stretch paper over bottom wing tip neces sary add thinner stretch rub paper down fingertip Use same maneuver leading trailing edge spars pulling paper tight go Allow whole thing dry youre working other wing half its finished use sharp single edge razor blade trim paper back Continued page 182 78 Model Aviation SMASH BASH ITS CRAZY AND HILARIOUS YOULL LOVE IT EVER WISH YOU HAD CAMERA WHEN THAT SPECIAL CRASH OCCU RED OR WHEN SOME CRAZY THING HAPPENED UNEXPECTEDLY WELL WEVE CAPTURED 30 MINUTES OF THOSE MOMENTS WATCH AS PT BOATS DEPTH CHARGE NEARLY DESTROYS CHOPPER SEE 14 SCALE LEAR JET HOVER TO ITS DEATH CRASH AFTER CRASH SLOW MOTION CLOSE CALLS AND MUCH MUCH MORE HURRY THIS VIDEO IS HOT AND IN LIMITED SUPPLY SEND CHECK OR MONEY ORDER FOR ONLY $1950 TO CJ ELECTRONICS 401 N MAIN ST 290A WILLIAMSTOWN NJ 08094 WE PAY SHIPPING & HANDLING NJ RESIDENTS ADO 706 SALES TAX SORRY NO CODS settling second Phil Granderdog undoing several other big-time com petitors including Michael Willcox Vaca yule Money Meet winner Steve Stewart over $15000 pickup-truck bedful stereo prizes its no wonder people drawn classic among Combat meets As usual organization very good site roomy well preparedand above safe scary moment cut away model hit pitman leg Luckily foam wing rather engine did hitting circle marshal used throughout meet ensure pilots stayed circle close together during line tangles DQ sawing lines otherwise making things diffi cult processing commendably tight lines checked diameter length condition case unfortunately meets emphasis safety made differ ence probably provides benefit written rules world could Kelly Crozier brought fuel shutoff model Bladder Grabber inspection model flying lines weight wing tip pulls wire holds pinchoff open model gets cut away weight will no longer pulling against trip wire small rubberband will have sufficient force job Its similar swing weight valves used AMA Slow Rats centrifugal force opens valve model gets up speed Does work betcha Frank Boden re ports Airwaves newsletter British Colum bia Kelly friends tested remote site Using measured quantity fuel wouldnt lose model didnt wor9 cut lines appropriate moment model veered outside circle immedi ately quit fell harmlessly back earth Kellys design could refined pretty com pact unit wouldnt add few grams weight model dreaded Canadian contingent may have come through solution glaring problem facing Fast Combat Also seen Bladder Grabber old friend Rich Porter Northwest Terror putting demonstrations whip model can picture unpowered Stunter string attached short pole Great kids some good exercise adults Rich also 15-powered 600-sq-in model action features Combat-style con struction lightness tuned pipe risingrate control system system features very slow insensitive control around neutral increasing rate crank Up Down system really appeals us dont like use lot handle movement same time dont want touchy control near neutral Ive speed up controls models because after three four flights wrist arm lose just enough quick ness necessary miss ground opponent Quick controls mean too much elevator move ment unless stops used Until Rich brought out special bellcrank thing get used giving full control swer whether works 110 mph well 50 mph will have wait until next time proper test can done Whos hot latest issue MACA news letter showed Alan Deveuve leading points battle champion 60 points followed Tom Fluker 46 1989 champion Paul Smith 45 Alan has using Mark Smiths products described above Fast model par Hills Arrowplane hes planning make PAl version team trials Gary Frost commented newsletter goes out PAl competitors may have adopt European flying style want win over think Gary probably right love wiggle-waggle style use cant say same tactical line tangles midairs Remember days wrap punch artist AMA Combat think relieved running-around-the-circle style didnt catch USA Euros seem have forgotten too BDF-1 /Denson Continued page 78 balsa wood Using dope-filled brush go over edges paper make sure everything stuck down piece fine sandpaper around edges will remove ragged bits tissue smooth down dope Use same process cover top wing wing fully covered youre ready shrink paper Gather some straight pins some pieces soft balsa same thickness Using spray bottle mister spray-wet bottom half wing pin workbench small balsa pieces should 182 Model Aviation CRASH READYTOFLYTOPGUN 1/8 SCALE H/C C/b F/F YOU WANT TO R0111 SETTER MOORS FROM START TO FIRISH nSAVt TIME RHO EFFORT HAVE MUCH MORE FART o SHARPER YOUR SEILLS GET MORE SATISFACTION thee secrets MORE have vow revealed withour FIRISHING FRIEND SYSTEM recejee complete PHOTO illustrated brochure FIRISHIRO FRItNO can change look hohby please seod lout SASE Qattsmc~ Models ln 1311 C 161st Street Westfield Indiana 46074 Build just model using FINISHING FRIEND yavil never huild another used spacers air can get under wing Pinning wing workbench dries will prevent warping its dry repeat process four sides sealing paper diluted dope can dope both sides same wing half before pin workbench Cover fuselage similar manner balsa filler under paper apply thinner smooth paper fingertip open apply thinner around edges center will shrink water added later Cover whole empennage tissue wet thinner rub tissue until dope comes through use sandpaper remove excess tissue around edges As sand edges tissue will part fall off Give surfaces plane two coats dope diluted 11 Sand lightly between coats 400 wet dry sandpaper Trim plane like done Super MonoKote Trim Sheet Slide stabilizer between two longe rons tail end fuselage glue place Glue vertical fin end stabilizer run glue bead top bottom stabilizer meets fuselage juxtaposition stab fin gives whole empennage extra strength firewall designed give downthrust necessary youll have add side thrust As bolt engine fire wall place couple washers between back engine firewall left side viewed imaginary pilot Drill hole fuel tank location hole very important must pass between two bolts hold backplate tank crankcase see photo tank has hole other side too Its evidence failed locate hole properly first try course once drill hole tank wont hurt drill two dont get posi tioned exactly first crack youve got another try coming ever want use engine tank youll need get new theyre too expensive acquired foot A-in fuel tubing medicine dropper hobby shop Using propane torch manner chemist heated glass tubing stretched new end around A-in plastic tubing would fit shortened medicine dropper tied strip hardwood fastened firewall made plane yellow used little strips heat shrink tubing hold drop per riser picture pretty much self-explanatory process much easier see explain plans Fill medicine dropper tank fuel extract bit syringe prime engine wind up spring off goes Watch fuel level bottom string launch plane time launch determination must make self after few launches will have PO Box 299 Gonzales TX 78629 5121 672-7023 225 pus stunning Hardware Included Now Fully Sheeted Rec Engine 90- 108 Two Stroke 120 Four Stroke Wing Span 72 Area 875 oximate Weight 9- 11 lbs THE FIRST PRECISION-ENGINEERED ENGINE MOUNT tte PROVIDES VIBRATION-DAMPING SOFT MOUNTING USA WITHOUT EXCESSIVE ENGINE SHAKE AT LOW RPM soft mounting excessive engine shake low RPM due damped nonlinear forcedisplacement characteristics mounting system Vibration mounts loaded compression shear Thrust forces cant cause tension failures Constructed aluminum oil resistant elastomer Safety featureunique mount design captures engine airframe Light weightless standard aluminum hard mount Allows lighter front end construction Radial beam mounts available 40-65 7011 12-18 cu sizes hardware complete installation instructions included 60-day no-risk money-back guarantee direct orders 19s Rad jal Meant $ 4055hws 75, six $0495 sossa oflware10319 Pine Pass Drive Houston TXritP1ThtmSW] ociates visastzoasI coos zurqssnl oatzn isqsiisns vtIcosz o nsa sxax,s ixsass,vx December 1990 183 D&R F4U Sport Scale Corsair Beam Meant$ 4065 size 75IISRO $5695 luissIze $0195 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need package Cycler-Chargec $23996 o Fits 48V Ra 96V Ta packsPlus $6 S&HceGelled Cell Others available write caIll Trickier$3495%CY1tRegular Model- $4695 ForPlus $3 S&Hc4 d kit smallPlus $3 S&H electric boat batteriesSpecify 6 12 24V Heavy Duty Model$5896 sport winch large boat andPlus $4 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsSEf~iea ox 221 605-987-5924Dear inqurnes invitedCanton SD 57013 SUCKER-KIT$5995 Show & Tell Video$3995 -Add $400 shipping & handling MI residents add 4O/ sales tax C nd Si SASE br product list asamples oh real wood veneer skins Product List lijcIudes Gapless Arrow Shalt HInges Carbon Tow Mylar Sheet Eand High-Tech items ac -O ler Inquires Welcome C ND CHECK DR MONEY ORDER TO COa P0 Box866 Lapeer Ml 48446 0 a C 0 a 313 664-3330 Composite Aircraft Eng & Supply FAX 664-9780 Kraft Midwest Inc 115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Special Agreement RCD Rxs 50 & 53 Mhz Complete 6m conversion Available Littlest Miracle Workshop PROFE TOOL SUITABLESend 5O FOR ALLfor catalog HOBBIES AND CRAFTS Makers of. Mini-Glue Tips Stray- Tray Tee Bar Mini-Saw Ruff-Stuff & Jewel Stripes down pat picture shows prop po sitioned correctly turned prop back wards first few launches slow down plane order get trimmed properly Later turned prop around Flying under circumstances launch BDF-l full tank fuel APPLIED DESIGN CORP PO Box 3384 Torrance CA 90510 An engine run length will put plane out sight overhead First check center-of-gravity should marked plans about two-thirds wing chord few test flights will necessary windless day find flat soft location such football baseball field Hold plane over head walk fast run until plane wants lift out hand Launch forward level stop watch floats straight out drops slowly ground rolls stop perfect dives bit stalls changes wing incidence necessary cut strips /16 sheet balsa crack match dihedral place between either front back wing wing saddle plane dives place under forward edge stalls put spacer under trailing edge wing theres breeze launch plane Otherwise launch straight out As plane picks up speed will gain lift start climb same time right thrust will pull right plane will climb back toward right spiral should top out after second turn en gine should quit plane loses speed rudders take over plane will figure-eight left spiral float downward perfect flight just turn around reach up plane will hand did once three times row thrill weve remembered af ter years Free Flight experts Most time spent RC So bit difficulty initial flights werent immediately sure correct problem plane started off climbed bit got up speed right thrust put steep right bank did recover tried fix cranking goodly amount left rudder put BDF 1 left death-spiral bunch broken props later came upon magic formula Notice plans tab right wing tip tab made cardboard light aluminum will keep plane doing right spiral Just bend tab down bit correct maneuver now understand washin will accomplish same thing give tiny bit left trim left rud der leave right alone Make changes tiny increments until plane flies should wish wed Free Flight expert available tell us some ways BDF-l same old plane built years ago some ways least us RCers its return stick-and-tissue new flying Free Flight again new playing engine doesnt start RC engine does hit starterwell thats new too thrill new So youre novice wants graduate all-balsa wind-up planes rea sonably priced glow engine power try youre dyed-in-the-wool RC pilot give BDF-l try think youll find welcome change responding advertisers mention read about ModelAviation 184 Model Aviation Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz ectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 120F 10 Khz spacing Bandwidth 1- 85 khz 60db down 301P 3db Image 60db down List Prices Special War Speed Service Exceeds AMi Rx Guidelines 4 Channel$9495 5 Channel$9995 6 Channel$10495 7 Channel$10995 Pro-Line Units Negative Pulse add $1000 Dealers Discounts available Rx Trade $5-Sb NEW Floria Flyers STUNT WAGON New Only $5995 Wing Span 50 Area- 786 sq th 405 Power 25 40 ci gn Weight -3 4 lbs Features maple engine rails band-sewn pans formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout Designed flown computer radloel Radical design performance conventIonal construction competItion Fun Fly contender Ask Floric Flyer STUNT WAGON favorite hobby shop first direct orders add $4 Se-H per kit Z Send free Florio Flyer catalog VISA & MC accepted PA Residents add 6% sales tax Florio Flyer Corp 837 Johnsonburg Rd. St Marys PA 15857w t814 834-2586 $275 epl strips Add 20% postage
Edition: Model Aviation - 1990/12
Page Numbers: 76, 77, 78, 182, 183, 184
BDF-1 replica earlier Half Pint originally meant single-channel RC plane proved unsuitable radios available 1940s Name comes workshop known years Balsa Dust Factory TWENTY YEARS ago wrote article build little plane called Quar ter Pint look closely plane youd notice BDF-1 strik ingly similar build again thrill Quarter Pint originally intended novice Junior modeler wants add little fun hum drum RC existence will get kick out Juniors want start out model avi ation becoming involved RC might find project particularly appealing sensible ways get RC starting stick-and-tissue model has stood test time youre sure will fly After build can get fly regularly have build larger add RC unit guide around sky So heres Quarter Pint againgiven new life BDF-1much better cause its design profits 20 years experience Gliders Old-Timers Elec trics sport fliers 1964 issue American Modeler Annual concise tory book chock-full ideas sport Free Flight carried picture Lou Garamis Half Pint somewhat larger BDF-l 1940 Lou commented its size small could carried 1011 flying site shopping bag aero modelist would spared embarrass ment explanations way field Jeers neighborhood kids truck drivers dogs will cease tuck Half Pint under arm set out field BDF- 1 intended replica Scale model Half Pint planned single-channel RC plane too small accommodate radios available forties developed Free Flight model started out side view Half Pint Later found construction ar ticle 1940 issue Air Trails took above quote made fuselage plane square rather diamond-shapedeven early con cept hoped make plan workable Junior modelers original model single wheel changed two order provide protection engine front plane wing built up empen nage sheet balsa used icc syringe fill fuel tank original Quarter Pint started en gine heaved plane blue sky flew about 30 50 ft gained speed lift climbed up 76 Model Aviation hold fuel tank upright two rings heat shrink tubing stretched over top tank adhered MonoKote heat gun Full-Size Plans Available. See Page 200 _ PR-SO YIREWOI9\ PROP 45 09 PSSRT OESIGNED& DOAWN1JI 0 loop top rolled out ever grace fully continued circling right-hand direction until fuel ran out point rudders took over plane circled left floated gently ground Recalling magical flights indel ibly impressed memory knew build anotherif send aloft catch days past before landed Construction suggest start kitting plane Look over parts list visit local hobby shop stock up everything already have around workshop Fuselage Build right fuselage side Pin V16 fuselage side filler plans add longerons crosspieces Build left side same manner Prop fuse lage filler up /46 above plans finish construction A-in-sq balsa Pin right side back plans glue formers F3 F4 place ensuring perpendicular side use UFO Thick Thin Satellite City really shortens wait ad hesives set up spray Kick-It cuts wait zero Glue left side place atop two formers Sew landing gear former Fl dicated plans Check location blind mounting nuts will secure engine firewall make sure landing gear doesnt interfere Remove fuselage plans sert former Fl glue place Drill firewall four blind mounting nuts fuselage side sheeting built during construction side pylon made three layers 1Ae sheeting two outside lay ers vertical inside layer horizontal stabilizer slides between two tail longerons twin rudders added after stab glued place give empennage extra strength run glue bead top bottom stabilizer fuselage fin December 1990 77 SAW RE STOCK OINEOROL BRACE IARPLV wing mount glued top pylon braced 14-in triangular stock blue version piece /a2 stock needed under leading edge added incidence pylon cemented between second fourth formers no F3 landing gear sewn heavy thread F2 glued between F2 firewall After spraying water painting dope mount wing blocks ana pin inc worKbench air may circulate reely dries Blocks under leading edge show Note bottom view wing shows center sheeting top dihedral doubler made %-in sheeting should worked back side firewall Add drop UFO hold place Add firewall fuse lage Level fuselage inserting block un der firewall pin fuselage plan top view Bring tail end together squeezing between two food cans pantry such way rims cans touching longeron lines plans Insert glue crosspieces top bottom tail end fuselage sert cross braces top bottom along whole fuselage Fill bottom area between Fl F2 1/16 sheet balsa Cut three pylon sec tions /16 sheet balsa sure check plans appropriate direction wood grain piece Laminate pieces using UFO Thick UFO Thick Kick-It work great laminating sheet balsa Put glue piece spray associated piece Kick-It carefully place together UFO will bond stantly Remove fuselage plans insert pylon between formers F2 F4 step important construction whole plane cidence wing determined proper location pylon Mark cen terline top both formers Measure plans top former top pylon measurements must duplicated plane Glue pylon place Add wing platform atop pylon brace A-in triangular stock whittled own short pieces /4 -in sq balsa Add %2-sq strips act dihedral fillers Drill holes add wing hold-down dowels nothin2 round toothpicks Using A6 sheet balsa fill area tween pylon longeron side fill between pylon former Fl Wing Using two pieces hacksaw blade taped together cut notches trail ing edge stock can tape gauge blades limit depth cut see drawing plans built wing piece cut half later Place waxed paper plastic wrap over plans pin trailing edge stock place Using ribs spacers pin center spar place Add ribs ex cept two center Wls glue Add glue leading edge spar glue has set cut wing two halves Remove pins holding half workbench prop tip end up three inches Check fit between spars No doubt bit sanding will nec essary Using edge workbench guide sand bevel wing half Check fit glue two halves gether glue has set remove wing plans insert dihedral brace glue securely side center spar wing tips can made very soft triangular stock can whittle soft sheet balsa Add A6 center sheeting little notch must cut first W2 wing ribs accommodate sheeting Assembly Very carefully sand whole plane use 2 x 9 x A-in ply blocks width sheets sandpaper glue various grades sandpaper next step seems bamboozle builders Cover plane tissue Its tough may think Go over whole plane thick dope Use just comes out bottle Apply three coats allowing drying time between Lets start bottom wing Tear corner sheet tissue see direction tears easily called spanwise direction length wing fuselage elevator should cov ered spanwise Cut piece tissue about er sides area covered Ready small brush bottle dope thin ner Lay tissue bottom wing run line thinner across tis sue touches centerline wing Using fingertip rub tissue dope will come up through paper will dry almost instantly Once its dry can stretch paper spanwise attach same way tip wing Again dope dries stretch paper over bottom wing tip neces sary add thinner stretch rub paper down fingertip Use same maneuver leading trailing edge spars pulling paper tight go Allow whole thing dry youre working other wing half its finished use sharp single edge razor blade trim paper back Continued page 182 78 Model Aviation SMASH BASH ITS CRAZY AND HILARIOUS YOULL LOVE IT EVER WISH YOU HAD CAMERA WHEN THAT SPECIAL CRASH OCCU RED OR WHEN SOME CRAZY THING HAPPENED UNEXPECTEDLY WELL WEVE CAPTURED 30 MINUTES OF THOSE MOMENTS WATCH AS PT BOATS DEPTH CHARGE NEARLY DESTROYS CHOPPER SEE 14 SCALE LEAR JET HOVER TO ITS DEATH CRASH AFTER CRASH SLOW MOTION CLOSE CALLS AND MUCH MUCH MORE HURRY THIS VIDEO IS HOT AND IN LIMITED SUPPLY SEND CHECK OR MONEY ORDER FOR ONLY $1950 TO CJ ELECTRONICS 401 N MAIN ST 290A WILLIAMSTOWN NJ 08094 WE PAY SHIPPING & HANDLING NJ RESIDENTS ADO 706 SALES TAX SORRY NO CODS settling second Phil Granderdog undoing several other big-time com petitors including Michael Willcox Vaca yule Money Meet winner Steve Stewart over $15000 pickup-truck bedful stereo prizes its no wonder people drawn classic among Combat meets As usual organization very good site roomy well preparedand above safe scary moment cut away model hit pitman leg Luckily foam wing rather engine did hitting circle marshal used throughout meet ensure pilots stayed circle close together during line tangles DQ sawing lines otherwise making things diffi cult processing commendably tight lines checked diameter length condition case unfortunately meets emphasis safety made differ ence probably provides benefit written rules world could Kelly Crozier brought fuel shutoff model Bladder Grabber inspection model flying lines weight wing tip pulls wire holds pinchoff open model gets cut away weight will no longer pulling against trip wire small rubberband will have sufficient force job Its similar swing weight valves used AMA Slow Rats centrifugal force opens valve model gets up speed Does work betcha Frank Boden re ports Airwaves newsletter British Colum bia Kelly friends tested remote site Using measured quantity fuel wouldnt lose model didnt wor9 cut lines appropriate moment model veered outside circle immedi ately quit fell harmlessly back earth Kellys design could refined pretty com pact unit wouldnt add few grams weight model dreaded Canadian contingent may have come through solution glaring problem facing Fast Combat Also seen Bladder Grabber old friend Rich Porter Northwest Terror putting demonstrations whip model can picture unpowered Stunter string attached short pole Great kids some good exercise adults Rich also 15-powered 600-sq-in model action features Combat-style con struction lightness tuned pipe risingrate control system system features very slow insensitive control around neutral increasing rate crank Up Down system really appeals us dont like use lot handle movement same time dont want touchy control near neutral Ive speed up controls models because after three four flights wrist arm lose just enough quick ness necessary miss ground opponent Quick controls mean too much elevator move ment unless stops used Until Rich brought out special bellcrank thing get used giving full control swer whether works 110 mph well 50 mph will have wait until next time proper test can done Whos hot latest issue MACA news letter showed Alan Deveuve leading points battle champion 60 points followed Tom Fluker 46 1989 champion Paul Smith 45 Alan has using Mark Smiths products described above Fast model par Hills Arrowplane hes planning make PAl version team trials Gary Frost commented newsletter goes out PAl competitors may have adopt European flying style want win over think Gary probably right love wiggle-waggle style use cant say same tactical line tangles midairs Remember days wrap punch artist AMA Combat think relieved running-around-the-circle style didnt catch USA Euros seem have forgotten too BDF-1 /Denson Continued page 78 balsa wood Using dope-filled brush go over edges paper make sure everything stuck down piece fine sandpaper around edges will remove ragged bits tissue smooth down dope Use same process cover top wing wing fully covered youre ready shrink paper Gather some straight pins some pieces soft balsa same thickness Using spray bottle mister spray-wet bottom half wing pin workbench small balsa pieces should 182 Model Aviation CRASH READYTOFLYTOPGUN 1/8 SCALE H/C C/b F/F YOU WANT TO R0111 SETTER MOORS FROM START TO FIRISH nSAVt TIME RHO EFFORT HAVE MUCH MORE FART o SHARPER YOUR SEILLS GET MORE SATISFACTION thee secrets MORE have vow revealed withour FIRISHING FRIEND SYSTEM recejee complete PHOTO illustrated brochure FIRISHIRO FRItNO can change look hohby please seod lout SASE Qattsmc~ Models ln 1311 C 161st Street Westfield Indiana 46074 Build just model using FINISHING FRIEND yavil never huild another used spacers air can get under wing Pinning wing workbench dries will prevent warping its dry repeat process four sides sealing paper diluted dope can dope both sides same wing half before pin workbench Cover fuselage similar manner balsa filler under paper apply thinner smooth paper fingertip open apply thinner around edges center will shrink water added later Cover whole empennage tissue wet thinner rub tissue until dope comes through use sandpaper remove excess tissue around edges As sand edges tissue will part fall off Give surfaces plane two coats dope diluted 11 Sand lightly between coats 400 wet dry sandpaper Trim plane like done Super MonoKote Trim Sheet Slide stabilizer between two longe rons tail end fuselage glue place Glue vertical fin end stabilizer run glue bead top bottom stabilizer meets fuselage juxtaposition stab fin gives whole empennage extra strength firewall designed give downthrust necessary youll have add side thrust As bolt engine fire wall place couple washers between back engine firewall left side viewed imaginary pilot Drill hole fuel tank location hole very important must pass between two bolts hold backplate tank crankcase see photo tank has hole other side too Its evidence failed locate hole properly first try course once drill hole tank wont hurt drill two dont get posi tioned exactly first crack youve got another try coming ever want use engine tank youll need get new theyre too expensive acquired foot A-in fuel tubing medicine dropper hobby shop Using propane torch manner chemist heated glass tubing stretched new end around A-in plastic tubing would fit shortened medicine dropper tied strip hardwood fastened firewall made plane yellow used little strips heat shrink tubing hold drop per riser picture pretty much self-explanatory process much easier see explain plans Fill medicine dropper tank fuel extract bit syringe prime engine wind up spring off goes Watch fuel level bottom string launch plane time launch determination must make self after few launches will have PO Box 299 Gonzales TX 78629 5121 672-7023 225 pus stunning Hardware Included Now Fully Sheeted Rec Engine 90- 108 Two Stroke 120 Four Stroke Wing Span 72 Area 875 oximate Weight 9- 11 lbs THE FIRST PRECISION-ENGINEERED ENGINE MOUNT tte PROVIDES VIBRATION-DAMPING SOFT MOUNTING USA WITHOUT EXCESSIVE ENGINE SHAKE AT LOW RPM soft mounting excessive engine shake low RPM due damped nonlinear forcedisplacement characteristics mounting system Vibration mounts loaded compression shear Thrust forces cant cause tension failures Constructed aluminum oil resistant elastomer Safety featureunique mount design captures engine airframe Light weightless standard aluminum hard mount Allows lighter front end construction Radial beam mounts available 40-65 7011 12-18 cu sizes hardware complete installation instructions included 60-day no-risk money-back guarantee direct orders 19s Rad jal Meant $ 4055hws 75, six $0495 sossa oflware10319 Pine Pass Drive Houston TXritP1ThtmSW] ociates visastzoasI coos zurqssnl oatzn isqsiisns vtIcosz o nsa sxax,s ixsass,vx December 1990 183 D&R F4U Sport Scale Corsair Beam Meant$ 4065 size 75IISRO $5695 luissIze $0195 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need package Cycler-Chargec $23996 o Fits 48V Ra 96V Ta packsPlus $6 S&HceGelled Cell Others available write caIll Trickier$3495%CY1tRegular Model- $4695 ForPlus $3 S&Hc4 d kit smallPlus $3 S&H electric boat batteriesSpecify 6 12 24V Heavy Duty Model$5896 sport winch large boat andPlus $4 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsSEf~iea ox 221 605-987-5924Dear inqurnes invitedCanton SD 57013 SUCKER-KIT$5995 Show & Tell Video$3995 -Add $400 shipping & handling MI residents add 4O/ sales tax C nd Si SASE br product list asamples oh real wood veneer skins Product List lijcIudes Gapless Arrow Shalt HInges Carbon Tow Mylar Sheet Eand High-Tech items ac -O ler Inquires Welcome C ND CHECK DR MONEY ORDER TO COa P0 Box866 Lapeer Ml 48446 0 a C 0 a 313 664-3330 Composite Aircraft Eng & Supply FAX 664-9780 Kraft Midwest Inc 115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Special Agreement RCD Rxs 50 & 53 Mhz Complete 6m conversion Available Littlest Miracle Workshop PROFE TOOL SUITABLESend 5O FOR ALLfor catalog HOBBIES AND CRAFTS Makers of. Mini-Glue Tips Stray- Tray Tee Bar Mini-Saw Ruff-Stuff & Jewel Stripes down pat picture shows prop po sitioned correctly turned prop back wards first few launches slow down plane order get trimmed properly Later turned prop around Flying under circumstances launch BDF-l full tank fuel APPLIED DESIGN CORP PO Box 3384 Torrance CA 90510 An engine run length will put plane out sight overhead First check center-of-gravity should marked plans about two-thirds wing chord few test flights will necessary windless day find flat soft location such football baseball field Hold plane over head walk fast run until plane wants lift out hand Launch forward level stop watch floats straight out drops slowly ground rolls stop perfect dives bit stalls changes wing incidence necessary cut strips /16 sheet balsa crack match dihedral place between either front back wing wing saddle plane dives place under forward edge stalls put spacer under trailing edge wing theres breeze launch plane Otherwise launch straight out As plane picks up speed will gain lift start climb same time right thrust will pull right plane will climb back toward right spiral should top out after second turn en gine should quit plane loses speed rudders take over plane will figure-eight left spiral float downward perfect flight just turn around reach up plane will hand did once three times row thrill weve remembered af ter years Free Flight experts Most time spent RC So bit difficulty initial flights werent immediately sure correct problem plane started off climbed bit got up speed right thrust put steep right bank did recover tried fix cranking goodly amount left rudder put BDF 1 left death-spiral bunch broken props later came upon magic formula Notice plans tab right wing tip tab made cardboard light aluminum will keep plane doing right spiral Just bend tab down bit correct maneuver now understand washin will accomplish same thing give tiny bit left trim left rud der leave right alone Make changes tiny increments until plane flies should wish wed Free Flight expert available tell us some ways BDF-l same old plane built years ago some ways least us RCers its return stick-and-tissue new flying Free Flight again new playing engine doesnt start RC engine does hit starterwell thats new too thrill new So youre novice wants graduate all-balsa wind-up planes rea sonably priced glow engine power try youre dyed-in-the-wool RC pilot give BDF-l try think youll find welcome change responding advertisers mention read about ModelAviation 184 Model Aviation Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz ectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 120F 10 Khz spacing Bandwidth 1- 85 khz 60db down 301P 3db Image 60db down List Prices Special War Speed Service Exceeds AMi Rx Guidelines 4 Channel$9495 5 Channel$9995 6 Channel$10495 7 Channel$10995 Pro-Line Units Negative Pulse add $1000 Dealers Discounts available Rx Trade $5-Sb NEW Floria Flyers STUNT WAGON New Only $5995 Wing Span 50 Area- 786 sq th 405 Power 25 40 ci gn Weight -3 4 lbs Features maple engine rails band-sewn pans formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout Designed flown computer radloel Radical design performance conventIonal construction competItion Fun Fly contender Ask Floric Flyer STUNT WAGON favorite hobby shop first direct orders add $4 Se-H per kit Z Send free Florio Flyer catalog VISA & MC accepted PA Residents add 6% sales tax Florio Flyer Corp 837 Johnsonburg Rd. St Marys PA 15857w t814 834-2586 $275 epl strips Add 20% postage
Edition: Model Aviation - 1990/12
Page Numbers: 76, 77, 78, 182, 183, 184
BDF-1 replica earlier Half Pint originally meant single-channel RC plane proved unsuitable radios available 1940s Name comes workshop known years Balsa Dust Factory TWENTY YEARS ago wrote article build little plane called Quar ter Pint look closely plane youd notice BDF-1 strik ingly similar build again thrill Quarter Pint originally intended novice Junior modeler wants add little fun hum drum RC existence will get kick out Juniors want start out model avi ation becoming involved RC might find project particularly appealing sensible ways get RC starting stick-and-tissue model has stood test time youre sure will fly After build can get fly regularly have build larger add RC unit guide around sky So heres Quarter Pint againgiven new life BDF-1much better cause its design profits 20 years experience Gliders Old-Timers Elec trics sport fliers 1964 issue American Modeler Annual concise tory book chock-full ideas sport Free Flight carried picture Lou Garamis Half Pint somewhat larger BDF-l 1940 Lou commented its size small could carried 1011 flying site shopping bag aero modelist would spared embarrass ment explanations way field Jeers neighborhood kids truck drivers dogs will cease tuck Half Pint under arm set out field BDF- 1 intended replica Scale model Half Pint planned single-channel RC plane too small accommodate radios available forties developed Free Flight model started out side view Half Pint Later found construction ar ticle 1940 issue Air Trails took above quote made fuselage plane square rather diamond-shapedeven early con cept hoped make plan workable Junior modelers original model single wheel changed two order provide protection engine front plane wing built up empen nage sheet balsa used icc syringe fill fuel tank original Quarter Pint started en gine heaved plane blue sky flew about 30 50 ft gained speed lift climbed up 76 Model Aviation hold fuel tank upright two rings heat shrink tubing stretched over top tank adhered MonoKote heat gun Full-Size Plans Available. See Page 200 _ PR-SO YIREWOI9\ PROP 45 09 PSSRT OESIGNED& DOAWN1JI 0 loop top rolled out ever grace fully continued circling right-hand direction until fuel ran out point rudders took over plane circled left floated gently ground Recalling magical flights indel ibly impressed memory knew build anotherif send aloft catch days past before landed Construction suggest start kitting plane Look over parts list visit local hobby shop stock up everything already have around workshop Fuselage Build right fuselage side Pin V16 fuselage side filler plans add longerons crosspieces Build left side same manner Prop fuse lage filler up /46 above plans finish construction A-in-sq balsa Pin right side back plans glue formers F3 F4 place ensuring perpendicular side use UFO Thick Thin Satellite City really shortens wait ad hesives set up spray Kick-It cuts wait zero Glue left side place atop two formers Sew landing gear former Fl dicated plans Check location blind mounting nuts will secure engine firewall make sure landing gear doesnt interfere Remove fuselage plans sert former Fl glue place Drill firewall four blind mounting nuts fuselage side sheeting built during construction side pylon made three layers 1Ae sheeting two outside lay ers vertical inside layer horizontal stabilizer slides between two tail longerons twin rudders added after stab glued place give empennage extra strength run glue bead top bottom stabilizer fuselage fin December 1990 77 SAW RE STOCK OINEOROL BRACE IARPLV wing mount glued top pylon braced 14-in triangular stock blue version piece /a2 stock needed under leading edge added incidence pylon cemented between second fourth formers no F3 landing gear sewn heavy thread F2 glued between F2 firewall After spraying water painting dope mount wing blocks ana pin inc worKbench air may circulate reely dries Blocks under leading edge show Note bottom view wing shows center sheeting top dihedral doubler made %-in sheeting should worked back side firewall Add drop UFO hold place Add firewall fuse lage Level fuselage inserting block un der firewall pin fuselage plan top view Bring tail end together squeezing between two food cans pantry such way rims cans touching longeron lines plans Insert glue crosspieces top bottom tail end fuselage sert cross braces top bottom along whole fuselage Fill bottom area between Fl F2 1/16 sheet balsa Cut three pylon sec tions /16 sheet balsa sure check plans appropriate direction wood grain piece Laminate pieces using UFO Thick UFO Thick Kick-It work great laminating sheet balsa Put glue piece spray associated piece Kick-It carefully place together UFO will bond stantly Remove fuselage plans insert pylon between formers F2 F4 step important construction whole plane cidence wing determined proper location pylon Mark cen terline top both formers Measure plans top former top pylon measurements must duplicated plane Glue pylon place Add wing platform atop pylon brace A-in triangular stock whittled own short pieces /4 -in sq balsa Add %2-sq strips act dihedral fillers Drill holes add wing hold-down dowels nothin2 round toothpicks Using A6 sheet balsa fill area tween pylon longeron side fill between pylon former Fl Wing Using two pieces hacksaw blade taped together cut notches trail ing edge stock can tape gauge blades limit depth cut see drawing plans built wing piece cut half later Place waxed paper plastic wrap over plans pin trailing edge stock place Using ribs spacers pin center spar place Add ribs ex cept two center Wls glue Add glue leading edge spar glue has set cut wing two halves Remove pins holding half workbench prop tip end up three inches Check fit between spars No doubt bit sanding will nec essary Using edge workbench guide sand bevel wing half Check fit glue two halves gether glue has set remove wing plans insert dihedral brace glue securely side center spar wing tips can made very soft triangular stock can whittle soft sheet balsa Add A6 center sheeting little notch must cut first W2 wing ribs accommodate sheeting Assembly Very carefully sand whole plane use 2 x 9 x A-in ply blocks width sheets sandpaper glue various grades sandpaper next step seems bamboozle builders Cover plane tissue Its tough may think Go over whole plane thick dope Use just comes out bottle Apply three coats allowing drying time between Lets start bottom wing Tear corner sheet tissue see direction tears easily called spanwise direction length wing fuselage elevator should cov ered spanwise Cut piece tissue about er sides area covered Ready small brush bottle dope thin ner Lay tissue bottom wing run line thinner across tis sue touches centerline wing Using fingertip rub tissue dope will come up through paper will dry almost instantly Once its dry can stretch paper spanwise attach same way tip wing Again dope dries stretch paper over bottom wing tip neces sary add thinner stretch rub paper down fingertip Use same maneuver leading trailing edge spars pulling paper tight go Allow whole thing dry youre working other wing half its finished use sharp single edge razor blade trim paper back Continued page 182 78 Model Aviation SMASH BASH ITS CRAZY AND HILARIOUS YOULL LOVE IT EVER WISH YOU HAD CAMERA WHEN THAT SPECIAL CRASH OCCU RED OR WHEN SOME CRAZY THING HAPPENED UNEXPECTEDLY WELL WEVE CAPTURED 30 MINUTES OF THOSE MOMENTS WATCH AS PT BOATS DEPTH CHARGE NEARLY DESTROYS CHOPPER SEE 14 SCALE LEAR JET HOVER TO ITS DEATH CRASH AFTER CRASH SLOW MOTION CLOSE CALLS AND MUCH MUCH MORE HURRY THIS VIDEO IS HOT AND IN LIMITED SUPPLY SEND CHECK OR MONEY ORDER FOR ONLY $1950 TO CJ ELECTRONICS 401 N MAIN ST 290A WILLIAMSTOWN NJ 08094 WE PAY SHIPPING & HANDLING NJ RESIDENTS ADO 706 SALES TAX SORRY NO CODS settling second Phil Granderdog undoing several other big-time com petitors including Michael Willcox Vaca yule Money Meet winner Steve Stewart over $15000 pickup-truck bedful stereo prizes its no wonder people drawn classic among Combat meets As usual organization very good site roomy well preparedand above safe scary moment cut away model hit pitman leg Luckily foam wing rather engine did hitting circle marshal used throughout meet ensure pilots stayed circle close together during line tangles DQ sawing lines otherwise making things diffi cult processing commendably tight lines checked diameter length condition case unfortunately meets emphasis safety made differ ence probably provides benefit written rules world could Kelly Crozier brought fuel shutoff model Bladder Grabber inspection model flying lines weight wing tip pulls wire holds pinchoff open model gets cut away weight will no longer pulling against trip wire small rubberband will have sufficient force job Its similar swing weight valves used AMA Slow Rats centrifugal force opens valve model gets up speed Does work betcha Frank Boden re ports Airwaves newsletter British Colum bia Kelly friends tested remote site Using measured quantity fuel wouldnt lose model didnt wor9 cut lines appropriate moment model veered outside circle immedi ately quit fell harmlessly back earth Kellys design could refined pretty com pact unit wouldnt add few grams weight model dreaded Canadian contingent may have come through solution glaring problem facing Fast Combat Also seen Bladder Grabber old friend Rich Porter Northwest Terror putting demonstrations whip model can picture unpowered Stunter string attached short pole Great kids some good exercise adults Rich also 15-powered 600-sq-in model action features Combat-style con struction lightness tuned pipe risingrate control system system features very slow insensitive control around neutral increasing rate crank Up Down system really appeals us dont like use lot handle movement same time dont want touchy control near neutral Ive speed up controls models because after three four flights wrist arm lose just enough quick ness necessary miss ground opponent Quick controls mean too much elevator move ment unless stops used Until Rich brought out special bellcrank thing get used giving full control swer whether works 110 mph well 50 mph will have wait until next time proper test can done Whos hot latest issue MACA news letter showed Alan Deveuve leading points battle champion 60 points followed Tom Fluker 46 1989 champion Paul Smith 45 Alan has using Mark Smiths products described above Fast model par Hills Arrowplane hes planning make PAl version team trials Gary Frost commented newsletter goes out PAl competitors may have adopt European flying style want win over think Gary probably right love wiggle-waggle style use cant say same tactical line tangles midairs Remember days wrap punch artist AMA Combat think relieved running-around-the-circle style didnt catch USA Euros seem have forgotten too BDF-1 /Denson Continued page 78 balsa wood Using dope-filled brush go over edges paper make sure everything stuck down piece fine sandpaper around edges will remove ragged bits tissue smooth down dope Use same process cover top wing wing fully covered youre ready shrink paper Gather some straight pins some pieces soft balsa same thickness Using spray bottle mister spray-wet bottom half wing pin workbench small balsa pieces should 182 Model Aviation CRASH READYTOFLYTOPGUN 1/8 SCALE H/C C/b F/F YOU WANT TO R0111 SETTER MOORS FROM START TO FIRISH nSAVt TIME RHO EFFORT HAVE MUCH MORE FART o SHARPER YOUR SEILLS GET MORE SATISFACTION thee secrets MORE have vow revealed withour FIRISHING FRIEND SYSTEM recejee complete PHOTO illustrated brochure FIRISHIRO FRItNO can change look hohby please seod lout SASE Qattsmc~ Models ln 1311 C 161st Street Westfield Indiana 46074 Build just model using FINISHING FRIEND yavil never huild another used spacers air can get under wing Pinning wing workbench dries will prevent warping its dry repeat process four sides sealing paper diluted dope can dope both sides same wing half before pin workbench Cover fuselage similar manner balsa filler under paper apply thinner smooth paper fingertip open apply thinner around edges center will shrink water added later Cover whole empennage tissue wet thinner rub tissue until dope comes through use sandpaper remove excess tissue around edges As sand edges tissue will part fall off Give surfaces plane two coats dope diluted 11 Sand lightly between coats 400 wet dry sandpaper Trim plane like done Super MonoKote Trim Sheet Slide stabilizer between two longe rons tail end fuselage glue place Glue vertical fin end stabilizer run glue bead top bottom stabilizer meets fuselage juxtaposition stab fin gives whole empennage extra strength firewall designed give downthrust necessary youll have add side thrust As bolt engine fire wall place couple washers between back engine firewall left side viewed imaginary pilot Drill hole fuel tank location hole very important must pass between two bolts hold backplate tank crankcase see photo tank has hole other side too Its evidence failed locate hole properly first try course once drill hole tank wont hurt drill two dont get posi tioned exactly first crack youve got another try coming ever want use engine tank youll need get new theyre too expensive acquired foot A-in fuel tubing medicine dropper hobby shop Using propane torch manner chemist heated glass tubing stretched new end around A-in plastic tubing would fit shortened medicine dropper tied strip hardwood fastened firewall made plane yellow used little strips heat shrink tubing hold drop per riser picture pretty much self-explanatory process much easier see explain plans Fill medicine dropper tank fuel extract bit syringe prime engine wind up spring off goes Watch fuel level bottom string launch plane time launch determination must make self after few launches will have PO Box 299 Gonzales TX 78629 5121 672-7023 225 pus stunning Hardware Included Now Fully Sheeted Rec Engine 90- 108 Two Stroke 120 Four Stroke Wing Span 72 Area 875 oximate Weight 9- 11 lbs THE FIRST PRECISION-ENGINEERED ENGINE MOUNT tte PROVIDES VIBRATION-DAMPING SOFT MOUNTING USA WITHOUT EXCESSIVE ENGINE SHAKE AT LOW RPM soft mounting excessive engine shake low RPM due damped nonlinear forcedisplacement characteristics mounting system Vibration mounts loaded compression shear Thrust forces cant cause tension failures Constructed aluminum oil resistant elastomer Safety featureunique mount design captures engine airframe Light weightless standard aluminum hard mount Allows lighter front end construction Radial beam mounts available 40-65 7011 12-18 cu sizes hardware complete installation instructions included 60-day no-risk money-back guarantee direct orders 19s Rad jal Meant $ 4055hws 75, six $0495 sossa oflware10319 Pine Pass Drive Houston TXritP1ThtmSW] ociates visastzoasI coos zurqssnl oatzn isqsiisns vtIcosz o nsa sxax,s ixsass,vx December 1990 183 D&R F4U Sport Scale Corsair Beam Meant$ 4065 size 75IISRO $5695 luissIze $0195 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need package Cycler-Chargec $23996 o Fits 48V Ra 96V Ta packsPlus $6 S&HceGelled Cell Others available write caIll Trickier$3495%CY1tRegular Model- $4695 ForPlus $3 S&Hc4 d kit smallPlus $3 S&H electric boat batteriesSpecify 6 12 24V Heavy Duty Model$5896 sport winch large boat andPlus $4 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsSEf~iea ox 221 605-987-5924Dear inqurnes invitedCanton SD 57013 SUCKER-KIT$5995 Show & Tell Video$3995 -Add $400 shipping & handling MI residents add 4O/ sales tax C nd Si SASE br product list asamples oh real wood veneer skins Product List lijcIudes Gapless Arrow Shalt HInges Carbon Tow Mylar Sheet Eand High-Tech items ac -O ler Inquires Welcome C ND CHECK DR MONEY ORDER TO COa P0 Box866 Lapeer Ml 48446 0 a C 0 a 313 664-3330 Composite Aircraft Eng & Supply FAX 664-9780 Kraft Midwest Inc 115 E Main Northville MI 48167 313 348-0085 FAX 313 348-4175 Ultra Narrow Band AM Receiver Model KMRDC4-7A Years developing worth wait Special Agreement RCD Rxs 50 & 53 Mhz Complete 6m conversion Available Littlest Miracle Workshop PROFE TOOL SUITABLESend 5O FOR ALLfor catalog HOBBIES AND CRAFTS Makers of. Mini-Glue Tips Stray- Tray Tee Bar Mini-Saw Ruff-Stuff & Jewel Stripes down pat picture shows prop po sitioned correctly turned prop back wards first few launches slow down plane order get trimmed properly Later turned prop around Flying under circumstances launch BDF-l full tank fuel APPLIED DESIGN CORP PO Box 3384 Torrance CA 90510 An engine run length will put plane out sight overhead First check center-of-gravity should marked plans about two-thirds wing chord few test flights will necessary windless day find flat soft location such football baseball field Hold plane over head walk fast run until plane wants lift out hand Launch forward level stop watch floats straight out drops slowly ground rolls stop perfect dives bit stalls changes wing incidence necessary cut strips /16 sheet balsa crack match dihedral place between either front back wing wing saddle plane dives place under forward edge stalls put spacer under trailing edge wing theres breeze launch plane Otherwise launch straight out As plane picks up speed will gain lift start climb same time right thrust will pull right plane will climb back toward right spiral should top out after second turn en gine should quit plane loses speed rudders take over plane will figure-eight left spiral float downward perfect flight just turn around reach up plane will hand did once three times row thrill weve remembered af ter years Free Flight experts Most time spent RC So bit difficulty initial flights werent immediately sure correct problem plane started off climbed bit got up speed right thrust put steep right bank did recover tried fix cranking goodly amount left rudder put BDF 1 left death-spiral bunch broken props later came upon magic formula Notice plans tab right wing tip tab made cardboard light aluminum will keep plane doing right spiral Just bend tab down bit correct maneuver now understand washin will accomplish same thing give tiny bit left trim left rud der leave right alone Make changes tiny increments until plane flies should wish wed Free Flight expert available tell us some ways BDF-l same old plane built years ago some ways least us RCers its return stick-and-tissue new flying Free Flight again new playing engine doesnt start RC engine does hit starterwell thats new too thrill new So youre novice wants graduate all-balsa wind-up planes rea sonably priced glow engine power try youre dyed-in-the-wool RC pilot give BDF-l try think youll find welcome change responding advertisers mention read about ModelAviation 184 Model Aviation Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz ectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 120F 10 Khz spacing Bandwidth 1- 85 khz 60db down 301P 3db Image 60db down List Prices Special War Speed Service Exceeds AMi Rx Guidelines 4 Channel$9495 5 Channel$9995 6 Channel$10495 7 Channel$10995 Pro-Line Units Negative Pulse add $1000 Dealers Discounts available Rx Trade $5-Sb NEW Floria Flyers STUNT WAGON New Only $5995 Wing Span 50 Area- 786 sq th 405 Power 25 40 ci gn Weight -3 4 lbs Features maple engine rails band-sewn pans formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout Designed flown computer radloel Radical design performance conventIonal construction competItion Fun Fly contender Ask Floric Flyer STUNT WAGON favorite hobby shop first direct orders add $4 Se-H per kit Z Send free Florio Flyer catalog VISA & MC accepted PA Residents add 6% sales tax Florio Flyer Corp 837 Johnsonburg Rd. St Marys PA 15857w t814 834-2586 $275 epl strips Add 20% postage
Edition: Model Aviation - 1990/12
Page Numbers: 76, 77, 78, 182, 183, 184
BDF-1 replica earlier Half Pint originally meant single-channel RC plane proved unsuitable radios available 1940s Name comes workshop known years Balsa Dust Factory TWENTY YEARS ago wrote article build little plane called Quar ter Pint look closely plane youd notice BDF-1 strik ingly similar build again thrill Quarter Pint originally intended novice Junior modeler wants add little fun hum drum RC existence will get kick out Juniors want start out model avi ation becoming involved RC might find project particularly appealing sensible ways get RC starting stick-and-tissue model has stood test time youre sure will fly After build can get fly regularly have build larger add RC unit guide around sky So heres Quarter Pint againgiven new life BDF-1much better cause its design profits 20 years experience Gliders Old-Timers Elec trics sport fliers 1964 issue American Modeler Annual concise tory book chock-full ideas sport Free Flight carried picture Lou Garamis Half Pint somewhat larger BDF-l 1940 Lou commented its size small could carried 1011 flying site shopping bag aero modelist would spared embarrass ment explanations way field Jeers neighborhood kids truck drivers dogs will cease tuck Half Pint under arm set out field BDF- 1 intended replica Scale model Half Pint planned single-channel RC plane too small accommodate radios available forties developed Free Flight model started out side view Half Pint Later found construction ar ticle 1940 issue Air Trails took above quote made fuselage plane square rather diamond-shapedeven early con cept hoped make plan workable Junior modelers original model single wheel changed two order provide protection engine front plane wing built up empen nage sheet balsa used icc syringe fill fuel tank original Quarter Pint started en gine heaved plane blue sky flew about 30 50 ft gained speed lift climbed up 76 Model Aviation hold fuel tank upright two rings heat shrink tubing stretched over top tank adhered MonoKote heat gun Full-Size Plans Available. See Page 200 _ PR-SO YIREWOI9\ PROP 45 09 PSSRT OESIGNED& DOAWN1JI 0 loop top rolled out ever grace fully continued circling right-hand direction until fuel ran out point rudders took over plane circled left floated gently ground Recalling magical flights indel ibly impressed memory knew build anotherif send aloft catch days past before landed Construction suggest start kitting plane Look over parts list visit local hobby shop stock up everything already have around workshop Fuselage Build right fuselage side Pin V16 fuselage side filler plans add longerons crosspieces Build left side same manner Prop fuse lage filler up /46 above plans finish construction A-in-sq balsa Pin right side back plans glue formers F3 F4 place ensuring perpendicular side use UFO Thick Thin Satellite City really shortens wait ad hesives set up spray Kick-It cuts wait zero Glue left side place atop two formers Sew landing gear former Fl dicated plans Check location blind mounting nuts will secure engine firewall make sure landing gear doesnt interfere Remove fuselage plans sert former Fl glue place Drill firewall four blind mounting nuts fuselage side sheeting built during construction side pylon made three layers 1Ae sheeting two outside lay ers vertical inside layer horizontal stabilizer slides between two tail longerons twin rudders added after stab glued place give empennage extra strength run glue bead top bottom stabilizer fuselage fin December 1990 77 SAW RE STOCK OINEOROL BRACE IARPLV wing mount glued top pylon braced 14-in triangular stock blue version piece /a2 stock needed under leading edge added incidence pylon cemented between second fourth formers no F3 landing gear sewn heavy thread F2 glued between F2 firewall After spraying water painting dope mount wing blocks ana pin inc worKbench air may circulate reely dries Blocks under leading edge show Note bottom view wing shows center sheeting top dihedral doubler made %-in sheeting should worked back side firewall Add drop UFO hold place Add firewall fuse lage Level fuselage inserting block un der firewall pin fuselage plan top view Bring tail end together squeezing between two food cans pantry such way rims cans touching longeron lines plans Insert glue crosspieces top bottom tail end fuselage sert cross braces top bottom along whole fuselage Fill bottom area between Fl F2 1/16 sheet balsa Cut three pylon sec tions /16 sheet balsa sure check plans appropriate direction wood grain piece Laminate pieces using UFO Thick UFO Thick Kick-It work great laminating sheet balsa Put glue piece spray associated piece Kick-It carefully place together UFO will bond stantly Remove fuselage plans insert pylon between formers F2 F4 step important construction whole plane cidence wing determined proper location pylon Mark cen terline top both formers Measure plans top former top pylon measurements must duplicated plane Glue pylon place Add wing platform atop pylon brace A-in triangular stock whittled own short pieces /4 -in sq balsa Add %2-sq strips act dihedral fillers Drill holes add wing hold-down dowels nothin2 round toothpicks Using A6 sheet balsa fill area tween pylon longeron side fill between pylon former Fl Wing Using two pieces hacksaw blade taped together cut notches trail ing edge stock can tape gauge blades limit depth cut see drawing plans built wing piece cut half later Place waxed paper plastic wrap over plans pin trailing edge stock place Using ribs spacers pin center spar place Add ribs ex cept two center Wls glue Add glue leading edge spar glue has set cut wing two halves Remove pins holding half workbench prop tip end up three inches Check fit between spars No doubt bit sanding will nec essary Using edge workbench guide sand bevel wing half Check fit glue two halves gether glue has set remove wing plans insert dihedral brace glue securely side center spar wing tips can made very soft triangular stock can whittle soft sheet balsa Add A6 center sheeting little notch must cut first W2 wing ribs accommodate sheeting Assembly Very carefully sand whole plane use 2 x 9 x A-in ply blocks width sheets sandpaper glue various grades sandpaper next step seems bamboozle builders Cover plane tissue Its tough may think Go over whole plane thick dope Use just comes out bottle Apply three coats allowing drying time between Lets start bottom wing Tear corner sheet tissue see direction tears easily called spanwise direction length wing fuselage elevator should cov ered spanwise Cut piece tissue about er sides area covered Ready small brush bottle dope thin ner Lay tissue bottom wing run line thinner across tis sue touches centerline wing Using fingertip rub tissue dope will come up through paper will dry almost instantly Once its dry can stretch paper spanwise attach same way tip wing Again dope dries stretch paper over bottom wing tip neces sary add thinner stretch rub paper down fingertip Use same maneuver leading trailing edge spars pulling paper tight go Allow whole thing dry youre working other wing half its finished use sharp single edge razor blade trim paper back Continued page 182 78 Model Aviation SMASH BASH ITS CRAZY AND HILARIOUS YOULL LOVE IT EVER WISH YOU HAD CAMERA WHEN THAT SPECIAL CRASH OCCU RED OR WHEN SOME CRAZY THING HAPPENED UNEXPECTEDLY WELL WEVE CAPTURED 30 MINUTES OF THOSE MOMENTS WATCH AS PT BOATS DEPTH CHARGE NEARLY DESTROYS CHOPPER SEE 14 SCALE LEAR JET HOVER TO ITS DEATH CRASH AFTER CRASH SLOW MOTION CLOSE CALLS AND MUCH MUCH MORE HURRY THIS VIDEO IS HOT AND IN LIMITED SUPPLY SEND CHECK OR MONEY ORDER FOR ONLY $1950 TO CJ ELECTRONICS 401 N MAIN ST 290A WILLIAMSTOWN NJ 08094 WE PAY SHIPPING & HANDLING NJ RESIDENTS ADO 706 SALES TAX SORRY NO CODS settling second Phil Granderdog undoing several other big-time com petitors including Michael Willcox Vaca yule Money Meet winner Steve Stewart over $15000 pickup-truck bedful stereo prizes its no wonder people drawn classic among Combat meets As usual organization very good site roomy well preparedand above safe scary moment cut away model hit pitman leg Luckily foam wing rather engine did hitting circle marshal used throughout meet ensure pilots stayed circle close together during line tangles DQ sawing lines otherwise making things diffi cult processing commendably tight lines checked diameter length condition case unfortunately meets emphasis safety made differ ence probably provides benefit written rules world could Kelly Crozier brought fuel shutoff model Bladder Grabber inspection model flying lines weight wing tip pulls wire holds pinchoff open model gets cut away weight will no longer pulling against trip wire small rubberband will have sufficient force job Its similar swing weight valves used AMA Slow Rats centrifugal force opens valve model gets up speed Does work betcha Frank Boden re ports Airwaves newsletter British Colum bia Kelly friends tested remote site Using measured quantity fuel wouldnt lose model didnt wor9 cut lines appropriate moment model veered outside circle immedi ately quit fell harmlessly back earth Kellys design could refined pretty com pact unit wouldnt add few grams weight model dreaded Canadian contingent may have come through solution glaring problem facing Fast Combat Also seen Bladder Grabber old friend Rich Porter Northwest Terror putting demonstrations whip model can picture unpowered Stunter string attached short pole Great kids some good exercise adults Rich also 15-powered 600-sq-in model action features Combat-style con struction lightness tuned pipe risingrate control system system features very slow insensitive control around neutral increasing rate crank Up Down system really appeals us dont like use lot handle movement same time dont want touchy control near neutral Ive speed up controls models because after three four flights wrist arm lose just enough quick ness necessary miss ground opponent Quick controls mean too much elevator move ment unless stops used Until Rich brought out special bellcrank thing get used giving full control swer whether works 110 mph well 50 mph will have wait until next time proper test can done Whos hot latest issue MACA news letter showed Alan Deveuve leading points battle champion 60 points followed Tom Fluker 46 1989 champion Paul Smith 45 Alan has using Mark Smiths products described above Fast model par Hills Arrowplane hes planning make PAl version team trials Gary Frost commented newsletter goes out PAl competitors may have adopt European flying style want win over think Gary probably right love wiggle-waggle style use cant say same tactical line tangles midairs Remember days wrap punch artist AMA Combat think relieved running-around-the-circle style didnt catch USA Euros seem have forgotten too BDF-1 /Denson Continued page 78 balsa wood Using dope-filled brush go over edges paper make sure everything stuck down piece fine sandpaper around edges will remove ragged bits tissue smooth down dope Use same process cover top wing wing fully covered youre ready shrink paper Gather some straight pins some pieces soft balsa same thickness Using spray bottle mister spray-wet bottom half wing pin workbench small balsa pieces should 182 Model Aviation CRASH READYTOFLYTOPGUN 1/8 SCALE H/C C/b F/F YOU WANT TO R0111 SETTER MOORS FROM START TO FIRISH nSAVt TIME RHO EFFORT HAVE MUCH MORE FART o SHARPER YOUR SEILLS GET MORE SATISFACTION thee secrets MORE have vow revealed withour FIRISHING FRIEND SYSTEM recejee complete PHOTO illustrated brochure FIRISHIRO FRItNO can change look hohby please seod lout SASE Qattsmc~ Models ln 1311 C 161st Street Westfield Indiana 46074 Build just model using FINISHING FRIEND yavil never huild another used spacers air can get under wing Pinning wing workbench dries will prevent warping its dry repeat process four sides sealing paper diluted dope can dope both sides same wing half before pin workbench Cover fuselage similar manner balsa filler under paper apply thinner smooth paper fingertip open apply thinner around edges center will shrink water added later Cover whole empennage tissue wet thinner rub tissue until dope comes through use sandpaper remove excess tissue around edges As sand edges tissue will part fall off Give surfaces plane two coats dope diluted 11 Sand lightly between coats 400 wet dry sandpaper Trim plane like done Super MonoKote Trim Sheet Slide stabilizer between two longe rons tail end fuselage glue place Glue vertical fin end stabilizer run glue bead top bottom stabilizer meets fuselage juxtaposition stab fin gives whole empennage extra strength firewall designed give downthrust necessary youll have add side thrust As bolt engine fire wall place couple washers between back engine firewall left side viewed imaginary pilot Drill hole fuel tank location hole very important must pass between two bolts hold backplate tank crankcase see photo tank has hole other side too Its evidence failed locate hole properly first try course once drill hole tank wont hurt drill two dont get posi tioned exactly first crack youve got another try coming ever want use engine tank youll need get new theyre too expensive acquired foot A-in fuel tubing medicine dropper hobby shop Using propane torch manner chemist heated glass tubing stretched new end around A-in plastic tubing would fit shortened medicine dropper tied strip hardwood fastened firewall made plane yellow used little strips heat shrink tubing hold drop per riser picture pretty much self-explanatory process much easier see explain plans Fill medicine dropper tank fuel extract bit syringe prime engine wind up spring off goes Watch fuel level bottom string launch plane time launch determination must make self after few launches will have PO Box 299 Gonzales TX 78629 5121 672-7023 225 pus stunning Hardware Included Now Fully Sheeted Rec Engine 90- 108 Two Stroke 120 Four Stroke Wing Span 72 Area 875 oximate Weight 9- 11 lbs THE FIRST PRECISION-ENGINEERED ENGINE MOUNT tte PROVIDES VIBRATION-DAMPING SOFT MOUNTING USA WITHOUT EXCESSIVE ENGINE SHAKE AT LOW RPM soft mounting excessive engine shake low RPM due damped nonlinear forcedisplacement characteristics mounting system Vibration mounts loaded compression shear Thrust forces cant cause tension failures Constructed aluminum oil resistant elastomer Safety featureunique mount design captures engine airframe Light weightless standard aluminum hard mount Allows lighter front end construction Radial beam mounts available 40-65 7011 12-18 cu sizes hardware complete installation instructions included 60-day no-risk money-back guarantee direct orders 19s Rad jal Meant $ 4055hws 75, six $0495 sossa oflware10319 Pine Pass Drive Houston TXritP1ThtmSW] ociates visastzoasI coos zurqssnl oatzn isqsiisns vtIcosz o nsa sxax,s ixsass,vx December 1990 183 D&R F4U Sport Scale Corsair Beam Meant$ 4065 size 75IISRO $5695 luissIze $0195 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NICd Batteries chargers need package Cycler-Chargec $23996 o Fits 48V Ra 96V Ta packsPlus 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Mini-Glue Tips Stray- Tray Tee Bar Mini-Saw Ruff-Stuff & Jewel Stripes down pat picture shows prop po sitioned correctly turned prop back wards first few launches slow down plane order get trimmed properly Later turned prop around Flying under circumstances launch BDF-l full tank fuel APPLIED DESIGN CORP PO Box 3384 Torrance CA 90510 An engine run length will put plane out sight overhead First check center-of-gravity should marked plans about two-thirds wing chord few test flights will necessary windless day find flat soft location such football baseball field Hold plane over head walk fast run until plane wants lift out hand Launch forward level stop watch floats straight out drops slowly ground rolls stop perfect dives bit stalls changes wing incidence necessary cut strips /16 sheet balsa crack match dihedral place between either front back wing wing saddle plane dives place under forward edge stalls put spacer under trailing edge wing theres breeze launch plane Otherwise launch straight out As plane picks up speed will gain lift start climb same time right thrust will pull right plane will climb back toward right spiral should top out after second turn en gine should quit plane loses speed rudders take over plane will figure-eight left spiral float downward perfect flight just turn around reach up plane will hand did once three times row thrill weve remembered af ter years Free Flight experts Most time spent RC So bit difficulty initial flights werent immediately sure correct problem plane started off climbed bit got up speed right thrust put steep right bank did recover tried fix cranking goodly amount left rudder put BDF 1 left death-spiral bunch broken props later came upon magic formula Notice plans tab right wing tip tab made cardboard light aluminum will keep plane doing right spiral Just bend tab down bit correct maneuver now understand washin will accomplish same thing give tiny bit left trim left rud der leave right alone Make changes tiny increments until plane flies should wish wed Free Flight expert available tell us some ways BDF-l same old plane built years ago some ways least us RCers its return stick-and-tissue new flying Free Flight again new playing engine doesnt start RC engine does hit starterwell thats new too thrill new So youre novice wants graduate all-balsa wind-up planes rea sonably priced glow engine power try youre dyed-in-the-wool RC pilot give BDF-l try think youll find welcome change responding advertisers mention read about ModelAviation 184 Model Aviation Features Dual conversion AGC Dual Crystal Ceramic Filters 50 53 72 75 Mhz ectors Kraft styles Deans World & specials Specifications Size 275 70mm x 165 415mm x 825 205mm Weight 165 oz Working Voltage 38 60 VDC Temperature -10 120F 10 Khz spacing Bandwidth 1- 85 khz 60db down 301P 3db Image 60db down List Prices Special War Speed Service Exceeds AMi Rx Guidelines 4 Channel$9495 5 Channel$9995 6 Channel$10495 7 Channel$10995 Pro-Line Units Negative Pulse add $1000 Dealers Discounts available Rx Trade $5-Sb NEW Floria Flyers STUNT WAGON New Only $5995 Wing Span 50 Area- 786 sq th 405 Power 25 40 ci gn Weight -3 4 lbs Features maple engine rails band-sewn pans formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout Designed flown computer radloel Radical design performance conventIonal construction competItion Fun Fly contender Ask Floric Flyer STUNT WAGON favorite hobby shop first direct orders add $4 Se-H per kit Z Send free Florio Flyer catalog VISA & MC accepted PA Residents add 6% sales tax Florio Flyer Corp 837 Johnsonburg Rd. 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