AMONG enjoyable aspects competi tion flying season opportunity travel throughout country various meets within reasonable driving distance weekends Renew ing old acquaintances making new ones two activities always rank high list favorite things does chance observe first hand new developments art science Free Flight Denvers Magnificent Mountain Men Club har bors some nations best innova tive fliers its midst its always pleasure include least its contests travel ogue plans does have good monthly flying meets its excellent site southeast Den ver designates certain meets various purposes such emphasizing specific events encourage club members build outside area specialization So early summer meet tended promoted event Pee Wee 30 originally developed Californias Orbi teers Club encourage beginners participation gas-powered FF fliers such Bill Gies kieng present novel approaches event guaranteed As accompanying photo reveals Bills Pee Wee 30 has high thrust line single bladed prop shock-mounted wings variable thrust line adjustment feature electronic beeper aid retrieving plane after flight second photo Bill shows FAI high thrust line folding-wing design test bed con figuration uses foam plastic wing Doug Joyce New Orleans LA 12th 88 US FF FAI team finals re fined Lightning canard design Plane has aluminum-skinned wings Selig timer under main vertical fin auto surfaces Goldberg Skylark RC model simulates symmetrical airfoil configuration FiC plane during its powered climb mode wings folded Labor Day weekend another opportunity get amongst some excellent fliers further south journeyed Ft Worth TX Planesmens annual Labor Day bash weather uncharacteristically uncooperative Tom Peadon returned FF competition af ter extended layoff HIs US Kid HLQ de sign developed part joint project Kit Bays Dick Mathis US Kid still being kitted Campbells Custom Kits Don Ross new book Rubber Powen el Airplanes now available $12 postage Motorbooks Internation Box 1 Osceola WI 54020 1 book aimed beginner FF year expressing itself rain c high winds Free Flight compctitors wc times past showed up abundance meet truly plesurable experience Returning Free Flight wars afte decade Mike Hallu McFarland Bill Chenault Ton ntinuing 11 known making hiatus Larry Peadon Ken Phair Denver CO main stays Magnicent Mountain Mens Free Flight club also happens have won 88 US FAI FF team finals Model features aluminum-skinned surfaces 72 Model Aviation Free Flight Duration Larry Knhse Box 1137 LIberal KS 67901 HiLine Ltd has two new offerings Electric enthusiasts L MES-4 minimotor kit fprm models up 150 sq wing area R Imp can power models weighing up tq 10 oz Theres information both items column Typical Czech/Hungarian CO2 Duration mod el uses very light structure exposed tank cooling heavy-duty filler resistance damage Plane/photo Fritz Mueller d Mod 5 plus al PO 8-page lubber ec,am Bill Gieskieng Denver CO assembles testbed wing FAI Power FiC high thrustline folding wing design Foam wing Goldberg Skylark kit Symmetrical airfoil section mimics folded wing used plane competition hi_ 0Il us Another Gieskieng project high-thrustline low-wing Pee Wee 30 design Note carbon-fiber reinforcement wing spars adjustable thrustline rubberband shock-mounted wing panes elec tronic beeper just rear pylon among others Sixties Seventies Tom Peadon particular looked worse wear cajoled testing arm US Kid HLG designed published Flying Models magazine 1973 part composite project Kit Bays Dick Fast Richard Mathis Welcome back guys great see again Less Conventional wisdom suggests CO2 motors run best warm weather fact have seen modelers warming CO2 capsules under arms blowing warm breath ex posed CO2 tanks resorting other ploys -4 US Kid competitive Outdoor Hand-Launched Glider originally designed pub lished Tom Peadon 1973 Kit available Campbells Custom Kits Plan pre sented through courtesy Flying Models magazine warm tank CO2 prior charging motor modelers confusing higher pressure tank created warming CO2 increased volume gas tank what theyre actually seeking reality situation CO2 motors run best temperatures under 80 0F creased volume CO2 tarj can actually achieved cooling tank anWthe charger warming Fritz Mueller Col mbus GA has done some rather extensive experimentation CO2 pres sure psi relative gas volume ambient con ditions based upon practices Czechoslova kian Hungarian modelers able rou tinely achieve motor runs excess 90 seconds motor units essentially come Out box As accompanying photo shows tanks mounted completely exposed allow access cooling Some modelers cooling tanks using aerosol cooling sprays others us ing ice tanks accessible such Scale mod els tank first charged bled off Total Impulse Chart J Jet-X -Rubber Power 1 1 ELL 5 10 Time seconds -15 S C Figure Above Thrust vs time characteristics rubberpowered propeller Jet-X rocket motor Figure B R Results survey Outdoor FF Power models relates field category wing area engine displacement Source Max-Ouf newsletter back through filler valve keep mo tor feed line freezing up re charged its run Fritzs numbers show first charge puts about 15cc liquid CO2 5cc tank After bleeding charge off described above second charge puts 35cc liquid tank have conducted same type volumetric testing simply timing motor run spare Telco Turbo unit using suggested bleed-off procedure raises length motor run average 42 seconds average 74 seconds room temperature 72 0 F Fritz will publishing extensive article cooling CO2 units complete density isogram upcoming issue Model Builder magazine Watch youre CO2 Up up away Roger Wathens long vigi lance keeping last embers Jetex glowing newsletter P-s-s-s-t Off Sheet has Continued page 180 wiag Area vs Engine Displacement / / 500 / / / 400 / / / / /category category II dme 200/category III 100 o05101520 Engine Displacement cu 2530- 35 uu / / Soc March 1989 73 L FRONT VIEW 4 FIN MK 231 OR PFM 3200 Mooney 1/5th SCALE SEMI-KIT WAYNE SIEWERT AMA NATS 1st PLACE WINNER 1988 NATS EXPERT PORSCHE FI7TED MOONEY Instructions Scale Spinner WAYNE SIEWERT 2837 18th Ave So MPLS MN 55407 USA 612-722-7564 RADIO 4-6 CHANNEL ENGINE 90-1082 CYCLE 120-4 CYCLE SPAN 88 AREA 9SOSQIN WEIGHT 12-15# Argosy 1/Haught Continued page 177 well basic rigging pattern shown plan final challenge run lead-outs through maze Use sharpened piece music wire hand drill necessary holes lead-outs through nacelle lead-outs prototype extend few inches beyond nacelles makes less cluttered looking model lead-out guide clamps onto last set interplane struts added flying parts making guide shown plans two long plywood strips glued together space tween Notice line hole identical both strips slots leading holes different front strip slot exits bottom back strip exits top Clamp lead-out guide wing strut line hole about 1 above lower wing flying lines individ ually slipped between strips gap spacer provides bottom side Lead wire through slots hole front back Repeat steps three lines lot easier to explain works well Still happen less vain about biplanes might elect simply glue guide place have done Add engines check thrust gles like super-reliable Cox 049s outer engines because theyre easy start manage main en gine used K&B 40 RC has enough reserve fly Argosy its own Test run engines balance model youre set flying field Twin engines lot fun Triples better Care must taken during starting procedure recommend remove dummy engines before fueling three engines giving warm up run After topping off tanks start engines sequence outboard en gine inboard very care fully main engine Before takeoff re fill running 049s using long exten sion filler plastic tubing Argosy will take off three engines set low throttle main throttle increased touch-and-goes windy conditions things certain Flying piece avi ation history lot easier trying re construct imagination Having ap proached Argosy both angles can vouch Enjoy piece 1926 surely have responding advertisers mention read about ModelAviation FF Duration/Kruse Continued page 73 rewarded return Rocket power its new form Jet-X 50-Z motor new motor seems identical old Jetex 50 Hell-Cat except its nozzle orifice has enlarged ash screen inside has omitted So too has old asbestos/paper gasket ex changed appears rubber composite well new motor performs still mat ter conjecture circles Some modelers report difficulty ignition sequence de scribed product literature others re port no problems seem very pleased motors Available thrust has also largely matter conjecture point advertising litera ture claims powerful longer running Thanks again Fritz Mueller able chart average thrust duration new motor What being shown dot ted line Figure thrust characteristic 12-in loop i/o-in rubber wound 250 turns turning 6-in plastic prop solid line average thrust new Jet-X pellet burned new motor instructions supplied Jet-X warn new fuel pellets NOT used old Jetex motors RMcM Note unlike rubber thrust curve tends decrease almost straight linear fashion Jet-X thrust curve tends increase throughout flight maximum 10 grams thrust ap proximately 12 seconds flight before dropping off burnout own experience bears Out Fritzs analysis watched sheet balsa Jet-X design start High Performance Models presants ECL IPSE Designed Henry Piorun Former Canadian National Champion Canadian Team Member Designed Specifically FAI Pattern Flying Perform Equally Well Other AMA Classes Plug WIngs rglass Belly Pan Pro-Cut Moles WIng Joiner Tubes UltraDght Honeycomb Wlngoores fort 940460 OptIonal PlastIc Fiberglass Canopy Fiberglass Fuselage molded wing Joiner tube HIGH PERFORMANCE MODELS 9556 116 North Daita British Columbia 6Z4 Canada 604-588-0605 old timer perfectly proportioned modeung Curtlss Robin 049 Engines -Channei RIC 41 Wingspan Eiectrlc Power Optiansi Oh arOt Very few full scale sicrah aa ideally suited modal flight appealing old cuntiss Robin wan born spruce linen age beausfully proportroned rubber alactric glow engines Easy fun build tralnerllke performance Flyilne Models catalog SOS Pfrunn 7031 2730503 INE MODELS INC PO Box 2136 Fairfax Virginia 22031 usA 180 Model Aviation Fiberglass Cowlings Windshield Tip Lenses Plastic Elevator & Rudder Surfaces Rolled Plans Scale Documentation Full MORE iNFO BEND SABEJ Basic Kit $15000 Pra-Built Kit $35000 ladd $1500 Sil Send Check Money Order HI TECH GLASS EPPLER 214 134 WINGS TOTAL ENERGY SPAR ASSEMBUES NP CELL WING SHEETING SKINS Ill PERFORMANCE SAILPLANES offers high quaflty line epoxies glass cloth keviar laminates HP Cell wing sheeting skin vacuum bagging materIals honeycomb braided tubing fuselages wings Complete partial MIs Custom work Brochure send Si 00 SASE sample kIt $500 HI PERFORMANCE SAILPLANES 17902 NE 156th St Woodinvilie WA99072 206 487-1721 NEWSPACESAVING F Fits boa 2-112o7 3/So 9-1/8 FUEL CONTAINER Tough Rigid Polyethylene Includes tubing Fastarnera lock tubing through North Products PO Box 18419 cap sch postage Cleveland Heighta OH 44118 A Gal U EU Id Idli Ejur1 Sand SSAE cutalot sheet complete line gain tremendous amount altitude about 10 seconds its power pattern simply acceler ate out sight two-pellet charge Thanks Fritz interesting comparison Thats about size mentioned MMM Club Denver few paragraphs ago neglected mention fine newsletter Max-Our edited Rick Pangell debted Rick Bill Etherington plotting chart Figure B appeared recent sue Max-Our outgrowth several club conversations about appropriate size models use various engines chart provides handy reference select ing kit build given field size engine classification could also serve useful guide scratch-builder fledgling de signer An interesting feature chart point congruence Categories III Intersection 450 sq area 15 cu displacementa standard size FAI Power FlC ships New products such Some exciting news coming out cottage kitting industry iust time building season Campbells Custom Kits has two new George Perryman designs now production Gentleman Georges bent-winged bird Mulvihill called Super Maxer Speckled Bird available $2998 plus shipping smaller Fludy Coop Speckled Bird Coupe dHiver competi tion lists $2798 Both welcome additions array kits available serious Rubber fliers complete high-quality balsa tissue covering full-size plans plus quality weve learned expect Campbells Both available Campbells Custom Kits Box 5996 Lake Worth FL 33461-0181 Electric power enthusiasts have recently favored numerous new motor offerings last few months secmingly bit lighter bit powerful its predecessor Now HiLine Ltd company formed Tom Schmitt Don Srull come two new mo tors applicable sport Scale Duration ships new MES-4 mini-electric motor kit everything needed complete system suit able models 100-150 sq wing area all-up weight 3-5 oz kit has parts motor itself switch harness 100niAh three-cell battery prop charge plug all-up weight 53 grams larger motor HiLine 30-watt Imp kit comes ready hook up three NiCd cells least 150 mAh capacity motor draws approximately 10 amps can fitted aS x 3 6 x 3 prop models up 10 oz total weight system itself weighs 115 grams 275-mAb battery MES-4 kit goes $1895 plus 10% P&H Imp includes motor prop adapter mounting screws complete instruc lions very reasonable $1095 plus 10% P&H HiLine Ltd PO Box 341283 Bethesda MD 20817 0 Over 70 aviation publications ranging classic Zaic volumes through collections 50 years British aeromodeling available Hannans Runway constantly growing busi ness venture Joan Hannan Bills better half Begun 1985 heralded one-page flyer Hannans Runway has now grown ex tent having 36-page illustrated catalog listing plans rubber supplies cards rubber stamps fly ing accessories aforementioned publica tions As well featuring unusual collection DO YOU HAVE THE SHOEBOX BLUES 4 Evetyone gets have cure CMP field boxes Built machine cut 1/4 mahogany ply designed discriminating modelers like yourself give us call today Also dont miss FREE ACCESSORIES CATALOG kit IPKK-0101 $2595 ppda assem PKR-0201 $3995 ppd Leg kit available C17 Field boxes much Colorado Model Products Inc 555 Alter St #25 FOB 550 Broomfield CO 80020Dept MA 303465-5993 h 1989 181 Large Scala Miniatura AIrcraft Daslan Orawinga Harb iiaii IMAA 14W 1 llhscaloAaroncac3e5 wino27OOIpp 2 15 Scala sac-a Haildiva 00 wing aimIOOOOpo 329/10 scale seo5 Oauntlass 03 wing35OO/op 4 1/5 scale AO3o 4 Osuglas Okyraiiiar3OOO/pp 5 51a5 Wing Sag/nsa, Oae Plane2500/po Sand 200 far campieta nataing ta OP Systems inc. 1842 Tattanhail Hanatan TX 77006 i713195aee4o17131ee4-oaea FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL S[ON IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 #11 BIadesr~ 1I4O Pack $485 DelIvered 100 Pack $895 Berkeley TradIng Ca PO Box 26 Berkeley Springs WV 25411 1 ~ S WE BUILD YOUR HELl TEST YOUR HELl \\REPAIRYOURHELI 322North7thSt 6is ghton Pa 18235 WRITE OR CALL FOR INFORMA TION wonins aIscasr scALe scorn sesncanec PHone aAens PLANS 3 VISWS PHOTO-PACKS PLANS ENLARGING SAnE Enlnglaa neat 3m Pepinos Catalog *400 So page SCALE PLANS PHOTO SERVICE - 3209 Madsen 0aansbern N 27403 psora 119191 23g INs collaclI PIT-KIT Jr LiTRES /0//ECISION inSTRUMtNIS -nILLS METALS BOOKs COI/P.tTS C/ITSOG $200 UOOnoF item TDLS CD L n n Seina Road Sprogfonio O/0o 0550/ 5/ 13 3020562 Post paid to 48 enntigt.va AC4LtZS CODs add $300 MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT K CHARGE T ANT START COST PROPSPRITEMSCHAERIES $1495VLI11$2495EFC 5005 dinengage Free-Includes HY-70 BProps Charge Cord andUrn cost Quick CharBattenes Rt4#es cluoed snaps onto motorConnector Accesspacers etc4 0 type hattenes $1795VL-111RFC-402 ler 71b leads wrth QuickSame VUiideal accuratelyny VL Flight Batty MotucTo subatibnAbove chargVL Field box 10 size modelsFUGHT BATTERIES Vt 102B-62 HY-70 2050 nA-Hr $ 995 $1395Includes HY-42 Motor P-i PW5-63 HY-70 3050 mA-Hr 5 02 fuel engineCharge Plug Cord AeasorB-33L HV-42 3x tOO mA-Hr 1295 B-34L I-f Y-42 4o 100 nrA-Hr 1595 B-13L HY-42 3o 160 mA-Hr 34 grams1295 B-14L HY-42 4x 190 nsA-Hr 45 grams 1595 3-303L HY-42 3o 450 mA-Hr 64 grams129$ aviation items Hannans Runway features prompt efficient service orders shipped within 48 hours new catalog Runway $2 mailed PO Box Escon dido CA 92025 eagerly awaited book Don Ross Rubber Powered Model Airplanes has now pub lished Motorbooks International PO Box 1 Osceola WI 54020 intent book take new mod eler beginner competitor stages gradual understandable steps accompanied illustrations photos amplifing text books 168 pages explore rubber-powered models simplest stick model ad vanced contest ships Sections dealing construction covering props rubber winding flight trim some essential topics included Jim Kamans il lustrations three plans can easily scaled up provide visual inspiration new modeler avenue direct hands-on expe rience get novice builder started immedi ately road modeling success Rubber Powered Model Airplanes can dered mail address above $1295 plus $395 P&H Buy beginner youre trying encourage try Free Right FF Old-Timers/Baker Continued page 74 way look color wood clue its density flex wood hands can easily pick out hard pieces soft ones will result hav ing big pile sticks middle two little piles hope basic things help some obvious cant cover everything space have magazine letters let know what problem areas arc sure help Coming up suggested modifications Lanzo Stick SAM Society Antique Modelersed competition something about motor mounts removable ignition systems malcing folding props . what else need some helpful books available Some recent some out printbut may able find latter search dili gently new ones looks very good Rubber Powered Model Airplanes Don Ross (Editors note Larry Kruse also mentions oneand has photo coverin months FF Duration column RMcM just about Old-Timer models about Rub ber power general very up date terms modem practice such use torque meters winding tubes winding hooks such basic stuff rubber lube tying knots pert want fly Rubber need book expert should buy book give friends trying learn fine book much better 1982 book similar title written Robert Smith fortunately out print Smiths book disappointment can order copy Don Ross book di rectiy publisher $1695 cludes postage Send Motorbooks Interna tional PO Box 1 Osceola WI 54020 lot Model Aircraft Handbook SAVE YOUR FIELD SNUF-LER muffler low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions 3 10 decibels quieter stock muffler No power loss possible 300-600 RPM Increase Improves engine idle s better fuel economy Easily attached 25-1 08 stock mufflers Heat corrosion resistant Black E coat finish No special adspters required weighs 35 ozs Fits ASP BRAT ENVA FOX HP IRVINE K & B OS MAX ROYAL YS SUPER TIGRE mufflers available hobby shup ORDER DIRECT far immediate shipment Check MO. Visa MC. CODSEND 256 STAMP acceptedAdd$250fsrUPS$2OOforCODandf%ualeataa -FOR ADDtTIONAL INFO L Calif residentAND JTEC CATALOG William Winter spent much youth mem orizing 1942 edition now have b 1946 edi tion worth time spent shopping old book stores copy same author has new book print called World Model Airplanes published Scribners modern book overview current modeling activities well done chapter Free Flight techniques excel lent preceded chapters materials tools construction covering etc apply sorts models fine book beginner age try get copy Forties book really Old-Timers current book similar title World Model Aircraft Guy Williams published Chartwell Books Inc fine book too think Winters better two think should get interested Old-Timer gas-powered models copy Air Age Gas Models collection best Gas model articles Model Airplane News up until time first printing 1938 course long out printbut Hannans Run way has some copies much else interest Old-Timer enthusiast Send Runway two bucks its catalog Hannans Runway PO Box Escondido CA 92025 Some other out-of-print books worth looking Footes Model Engines Aerody namics Model Airplanes real trea sures copy Model Motor Manual Louis Garami Howard McEntee So check lo cal used-book shop look old books li brary throwing out look books well engines go garage sales flea 182 Model Aviation Efeady-no-nIyI 8396 ea plus 1 uu per oroer Florlo Flyer Corp 1 837 Jolsnaonburg Rd St Marys PA 15857 I
Edition: Model Aviation - 1989/03
Page Numbers: 72, 73, 180, 181, 182
AMONG enjoyable aspects competi tion flying season opportunity travel throughout country various meets within reasonable driving distance weekends Renew ing old acquaintances making new ones two activities always rank high list favorite things does chance observe first hand new developments art science Free Flight Denvers Magnificent Mountain Men Club har bors some nations best innova tive fliers its midst its always pleasure include least its contests travel ogue plans does have good monthly flying meets its excellent site southeast Den ver designates certain meets various purposes such emphasizing specific events encourage club members build outside area specialization So early summer meet tended promoted event Pee Wee 30 originally developed Californias Orbi teers Club encourage beginners participation gas-powered FF fliers such Bill Gies kieng present novel approaches event guaranteed As accompanying photo reveals Bills Pee Wee 30 has high thrust line single bladed prop shock-mounted wings variable thrust line adjustment feature electronic beeper aid retrieving plane after flight second photo Bill shows FAI high thrust line folding-wing design test bed con figuration uses foam plastic wing Doug Joyce New Orleans LA 12th 88 US FF FAI team finals re fined Lightning canard design Plane has aluminum-skinned wings Selig timer under main vertical fin auto surfaces Goldberg Skylark RC model simulates symmetrical airfoil configuration FiC plane during its powered climb mode wings folded Labor Day weekend another opportunity get amongst some excellent fliers further south journeyed Ft Worth TX Planesmens annual Labor Day bash weather uncharacteristically uncooperative Tom Peadon returned FF competition af ter extended layoff HIs US Kid HLQ de sign developed part joint project Kit Bays Dick Mathis US Kid still being kitted Campbells Custom Kits Don Ross new book Rubber Powen el Airplanes now available $12 postage Motorbooks Internation Box 1 Osceola WI 54020 1 book aimed beginner FF year expressing itself rain c high winds Free Flight compctitors wc times past showed up abundance meet truly plesurable experience Returning Free Flight wars afte decade Mike Hallu McFarland Bill Chenault Ton ntinuing 11 known making hiatus Larry Peadon Ken Phair Denver CO main stays Magnicent Mountain Mens Free Flight club also happens have won 88 US FAI FF team finals Model features aluminum-skinned surfaces 72 Model Aviation Free Flight Duration Larry Knhse Box 1137 LIberal KS 67901 HiLine Ltd has two new offerings Electric enthusiasts L MES-4 minimotor kit fprm models up 150 sq wing area R Imp can power models weighing up tq 10 oz Theres information both items column Typical Czech/Hungarian CO2 Duration mod el uses very light structure exposed tank cooling heavy-duty filler resistance damage Plane/photo Fritz Mueller d Mod 5 plus al PO 8-page lubber ec,am Bill Gieskieng Denver CO assembles testbed wing FAI Power FiC high thrustline folding wing design Foam wing Goldberg Skylark kit Symmetrical airfoil section mimics folded wing used plane competition hi_ 0Il us Another Gieskieng project high-thrustline low-wing Pee Wee 30 design Note carbon-fiber reinforcement wing spars adjustable thrustline rubberband shock-mounted wing panes elec tronic beeper just rear pylon among others Sixties Seventies Tom Peadon particular looked worse wear cajoled testing arm US Kid HLG designed published Flying Models magazine 1973 part composite project Kit Bays Dick Fast Richard Mathis Welcome back guys great see again Less Conventional wisdom suggests CO2 motors run best warm weather fact have seen modelers warming CO2 capsules under arms blowing warm breath ex posed CO2 tanks resorting other ploys -4 US Kid competitive Outdoor Hand-Launched Glider originally designed pub lished Tom Peadon 1973 Kit available Campbells Custom Kits Plan pre sented through courtesy Flying Models magazine warm tank CO2 prior charging motor modelers confusing higher pressure tank created warming CO2 increased volume gas tank what theyre actually seeking reality situation CO2 motors run best temperatures under 80 0F creased volume CO2 tarj can actually achieved cooling tank anWthe charger warming Fritz Mueller Col mbus GA has done some rather extensive experimentation CO2 pres sure psi relative gas volume ambient con ditions based upon practices Czechoslova kian Hungarian modelers able rou tinely achieve motor runs excess 90 seconds motor units essentially come Out box As accompanying photo shows tanks mounted completely exposed allow access cooling Some modelers cooling tanks using aerosol cooling sprays others us ing ice tanks accessible such Scale mod els tank first charged bled off Total Impulse Chart J Jet-X -Rubber Power 1 1 ELL 5 10 Time seconds -15 S C Figure Above Thrust vs time characteristics rubberpowered propeller Jet-X rocket motor Figure B R Results survey Outdoor FF Power models relates field category wing area engine displacement Source Max-Ouf newsletter back through filler valve keep mo tor feed line freezing up re charged its run Fritzs numbers show first charge puts about 15cc liquid CO2 5cc tank After bleeding charge off described above second charge puts 35cc liquid tank have conducted same type volumetric testing simply timing motor run spare Telco Turbo unit using suggested bleed-off procedure raises length motor run average 42 seconds average 74 seconds room temperature 72 0 F Fritz will publishing extensive article cooling CO2 units complete density isogram upcoming issue Model Builder magazine Watch youre CO2 Up up away Roger Wathens long vigi lance keeping last embers Jetex glowing newsletter P-s-s-s-t Off Sheet has Continued page 180 wiag Area vs Engine Displacement / / 500 / / / 400 / / / / /category category II dme 200/category III 100 o05101520 Engine Displacement cu 2530- 35 uu / / Soc March 1989 73 L FRONT VIEW 4 FIN MK 231 OR PFM 3200 Mooney 1/5th SCALE SEMI-KIT WAYNE SIEWERT AMA NATS 1st PLACE WINNER 1988 NATS EXPERT PORSCHE FI7TED MOONEY Instructions Scale Spinner WAYNE SIEWERT 2837 18th Ave So MPLS MN 55407 USA 612-722-7564 RADIO 4-6 CHANNEL ENGINE 90-1082 CYCLE 120-4 CYCLE SPAN 88 AREA 9SOSQIN WEIGHT 12-15# Argosy 1/Haught Continued page 177 well basic rigging pattern shown plan final challenge run lead-outs through maze Use sharpened piece music wire hand drill necessary holes lead-outs through nacelle lead-outs prototype extend few inches beyond nacelles makes less cluttered looking model lead-out guide clamps onto last set interplane struts added flying parts making guide shown plans two long plywood strips glued together space tween Notice line hole identical both strips slots leading holes different front strip slot exits bottom back strip exits top Clamp lead-out guide wing strut line hole about 1 above lower wing flying lines individ ually slipped between strips gap spacer provides bottom side Lead wire through slots hole front back Repeat steps three lines lot easier to explain works well Still happen less vain about biplanes might elect simply glue guide place have done Add engines check thrust gles like super-reliable Cox 049s outer engines because theyre easy start manage main en gine used K&B 40 RC has enough reserve fly Argosy its own Test run engines balance model youre set flying field Twin engines lot fun Triples better Care must taken during starting procedure recommend remove dummy engines before fueling three engines giving warm up run After topping off tanks start engines sequence outboard en gine inboard very care fully main engine Before takeoff re fill running 049s using long exten sion filler plastic tubing Argosy will take off three engines set low throttle main throttle increased touch-and-goes windy conditions things certain Flying piece avi ation history lot easier trying re construct imagination Having ap proached Argosy both angles can vouch Enjoy piece 1926 surely have responding advertisers mention read about ModelAviation FF Duration/Kruse Continued page 73 rewarded return Rocket power its new form Jet-X 50-Z motor new motor seems identical old Jetex 50 Hell-Cat except its nozzle orifice has enlarged ash screen inside has omitted So too has old asbestos/paper gasket ex changed appears rubber composite well new motor performs still mat ter conjecture circles Some modelers report difficulty ignition sequence de scribed product literature others re port no problems seem very pleased motors Available thrust has also largely matter conjecture point advertising litera ture claims powerful longer running Thanks again Fritz Mueller able chart average thrust duration new motor What being shown dot ted line Figure thrust characteristic 12-in loop i/o-in rubber wound 250 turns turning 6-in plastic prop solid line average thrust new Jet-X pellet burned new motor instructions supplied Jet-X warn new fuel pellets NOT used old Jetex motors RMcM Note unlike rubber thrust curve tends decrease almost straight linear fashion Jet-X thrust curve tends increase throughout flight maximum 10 grams thrust ap proximately 12 seconds flight before dropping off burnout own experience bears Out Fritzs analysis watched sheet balsa Jet-X design start High Performance Models presants ECL IPSE Designed Henry Piorun Former Canadian National Champion Canadian Team Member Designed Specifically FAI Pattern Flying Perform Equally Well Other AMA Classes Plug WIngs rglass Belly Pan Pro-Cut Moles WIng Joiner Tubes UltraDght Honeycomb Wlngoores fort 940460 OptIonal PlastIc Fiberglass Canopy Fiberglass Fuselage molded wing Joiner tube HIGH PERFORMANCE MODELS 9556 116 North Daita British Columbia 6Z4 Canada 604-588-0605 old timer perfectly proportioned modeung Curtlss Robin 049 Engines -Channei RIC 41 Wingspan Eiectrlc Power Optiansi Oh arOt Very few full scale sicrah aa ideally suited modal flight appealing old cuntiss Robin wan born spruce linen age beausfully proportroned rubber alactric glow engines Easy fun build tralnerllke performance Flyilne Models catalog SOS Pfrunn 7031 2730503 INE MODELS INC PO Box 2136 Fairfax Virginia 22031 usA 180 Model Aviation Fiberglass Cowlings Windshield Tip Lenses Plastic Elevator & Rudder Surfaces Rolled Plans Scale Documentation Full MORE iNFO BEND SABEJ Basic Kit $15000 Pra-Built Kit $35000 ladd $1500 Sil Send Check Money Order HI TECH GLASS EPPLER 214 134 WINGS TOTAL ENERGY SPAR ASSEMBUES NP CELL WING SHEETING SKINS Ill PERFORMANCE SAILPLANES offers high quaflty line epoxies glass cloth keviar laminates HP Cell wing sheeting skin vacuum bagging materIals honeycomb braided tubing fuselages wings Complete partial MIs Custom work Brochure send Si 00 SASE sample kIt $500 HI PERFORMANCE SAILPLANES 17902 NE 156th St Woodinvilie WA99072 206 487-1721 NEWSPACESAVING F Fits boa 2-112o7 3/So 9-1/8 FUEL CONTAINER Tough Rigid Polyethylene Includes tubing Fastarnera lock tubing through North Products PO Box 18419 cap sch postage Cleveland Heighta OH 44118 A Gal U EU Id Idli Ejur1 Sand SSAE cutalot sheet complete line gain tremendous amount altitude about 10 seconds its power pattern simply acceler ate out sight two-pellet charge Thanks Fritz interesting comparison Thats about size mentioned MMM Club Denver few paragraphs ago neglected mention fine newsletter Max-Our edited Rick Pangell debted Rick Bill Etherington plotting chart Figure B appeared recent sue Max-Our outgrowth several club conversations about appropriate size models use various engines chart provides handy reference select ing kit build given field size engine classification could also serve useful guide scratch-builder fledgling de signer An interesting feature chart point congruence Categories III Intersection 450 sq area 15 cu displacementa standard size FAI Power FlC ships New products such Some exciting news coming out cottage kitting industry iust time building season Campbells Custom Kits has two new George Perryman designs now production Gentleman Georges bent-winged bird Mulvihill called Super Maxer Speckled Bird available $2998 plus shipping smaller Fludy Coop Speckled Bird Coupe dHiver competi tion lists $2798 Both welcome additions array kits available serious Rubber fliers complete high-quality balsa tissue covering full-size plans plus quality weve learned expect Campbells Both available Campbells Custom Kits Box 5996 Lake Worth FL 33461-0181 Electric power enthusiasts have recently favored numerous new motor offerings last few months secmingly bit lighter bit powerful its predecessor Now HiLine Ltd company formed Tom Schmitt Don Srull come two new mo tors applicable sport Scale Duration ships new MES-4 mini-electric motor kit everything needed complete system suit able models 100-150 sq wing area all-up weight 3-5 oz kit has parts motor itself switch harness 100niAh three-cell battery prop charge plug all-up weight 53 grams larger motor HiLine 30-watt Imp kit comes ready hook up three NiCd cells least 150 mAh capacity motor draws approximately 10 amps can fitted aS x 3 6 x 3 prop models up 10 oz total weight system itself weighs 115 grams 275-mAb battery MES-4 kit goes $1895 plus 10% P&H Imp includes motor prop adapter mounting screws complete instruc lions very reasonable $1095 plus 10% P&H HiLine Ltd PO Box 341283 Bethesda MD 20817 0 Over 70 aviation publications ranging classic Zaic volumes through collections 50 years British aeromodeling available Hannans Runway constantly growing busi ness venture Joan Hannan Bills better half Begun 1985 heralded one-page flyer Hannans Runway has now grown ex tent having 36-page illustrated catalog listing plans rubber supplies cards rubber stamps fly ing accessories aforementioned publica tions As well featuring unusual collection DO YOU HAVE THE SHOEBOX BLUES 4 Evetyone gets have cure CMP field boxes Built machine cut 1/4 mahogany ply designed discriminating modelers like yourself give us call today Also dont miss FREE ACCESSORIES CATALOG kit IPKK-0101 $2595 ppda assem PKR-0201 $3995 ppd Leg kit available C17 Field boxes much Colorado Model Products Inc 555 Alter St #25 FOB 550 Broomfield CO 80020Dept MA 303465-5993 h 1989 181 Large Scala Miniatura AIrcraft Daslan Orawinga Harb iiaii IMAA 14W 1 llhscaloAaroncac3e5 wino27OOIpp 2 15 Scala sac-a Haildiva 00 wing aimIOOOOpo 329/10 scale seo5 Oauntlass 03 wing35OO/op 4 1/5 scale AO3o 4 Osuglas Okyraiiiar3OOO/pp 5 51a5 Wing Sag/nsa, Oae Plane2500/po Sand 200 far campieta nataing ta OP Systems inc. 1842 Tattanhail Hanatan TX 77006 i713195aee4o17131ee4-oaea FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL S[ON IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 #11 BIadesr~ 1I4O Pack $485 DelIvered 100 Pack $895 Berkeley TradIng Ca PO Box 26 Berkeley Springs WV 25411 1 ~ S WE BUILD YOUR HELl TEST YOUR HELl \\REPAIRYOURHELI 322North7thSt 6is ghton Pa 18235 WRITE OR CALL FOR INFORMA TION wonins aIscasr scALe scorn sesncanec PHone aAens PLANS 3 VISWS PHOTO-PACKS PLANS ENLARGING SAnE Enlnglaa neat 3m Pepinos Catalog *400 So page SCALE PLANS PHOTO SERVICE - 3209 Madsen 0aansbern N 27403 psora 119191 23g INs collaclI PIT-KIT Jr LiTRES /0//ECISION inSTRUMtNIS -nILLS METALS BOOKs COI/P.tTS C/ITSOG $200 UOOnoF item TDLS CD L n n Seina Road Sprogfonio O/0o 0550/ 5/ 13 3020562 Post paid to 48 enntigt.va AC4LtZS CODs add $300 MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT K CHARGE T ANT START COST PROPSPRITEMSCHAERIES $1495VLI11$2495EFC 5005 dinengage Free-Includes HY-70 BProps Charge Cord andUrn cost Quick CharBattenes Rt4#es cluoed snaps onto motorConnector Accesspacers etc4 0 type hattenes $1795VL-111RFC-402 ler 71b leads wrth QuickSame VUiideal accuratelyny VL Flight Batty MotucTo subatibnAbove chargVL Field box 10 size modelsFUGHT BATTERIES Vt 102B-62 HY-70 2050 nA-Hr $ 995 $1395Includes HY-42 Motor P-i PW5-63 HY-70 3050 mA-Hr 5 02 fuel engineCharge Plug Cord AeasorB-33L HV-42 3x tOO mA-Hr 1295 B-34L I-f Y-42 4o 100 nrA-Hr 1595 B-13L HY-42 3o 160 mA-Hr 34 grams1295 B-14L HY-42 4x 190 nsA-Hr 45 grams 1595 3-303L HY-42 3o 450 mA-Hr 64 grams129$ aviation items Hannans Runway features prompt efficient service orders shipped within 48 hours new catalog Runway $2 mailed PO Box Escon dido CA 92025 eagerly awaited book Don Ross Rubber Powered Model Airplanes has now pub lished Motorbooks International PO Box 1 Osceola WI 54020 intent book take new mod eler beginner competitor stages gradual understandable steps accompanied illustrations photos amplifing text books 168 pages explore rubber-powered models simplest stick model ad vanced contest ships Sections dealing construction covering props rubber winding flight trim some essential topics included Jim Kamans il lustrations three plans can easily scaled up provide visual inspiration new modeler avenue direct hands-on expe rience get novice builder started immedi ately road modeling success Rubber Powered Model Airplanes can dered mail address above $1295 plus $395 P&H Buy beginner youre trying encourage try Free Right FF Old-Timers/Baker Continued page 74 way look color wood clue its density flex wood hands can easily pick out hard pieces soft ones will result hav ing big pile sticks middle two little piles hope basic things help some obvious cant cover everything space have magazine letters let know what problem areas arc sure help Coming up suggested modifications Lanzo Stick SAM Society Antique Modelersed competition something about motor mounts removable ignition systems malcing folding props . what else need some helpful books available Some recent some out printbut may able find latter search dili gently new ones looks very good Rubber Powered Model Airplanes Don Ross (Editors note Larry Kruse also mentions oneand has photo coverin months FF Duration column RMcM just about Old-Timer models about Rub ber power general very up date terms modem practice such use torque meters winding tubes winding hooks such basic stuff rubber lube tying knots pert want fly Rubber need book expert should buy book give friends trying learn fine book much better 1982 book similar title written Robert Smith fortunately out print Smiths book disappointment can order copy Don Ross book di rectiy publisher $1695 cludes postage Send Motorbooks Interna tional PO Box 1 Osceola WI 54020 lot Model Aircraft Handbook SAVE YOUR FIELD SNUF-LER muffler low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions 3 10 decibels quieter stock muffler No power loss possible 300-600 RPM Increase Improves engine idle s better fuel economy Easily attached 25-1 08 stock mufflers Heat corrosion resistant Black E coat finish No special adspters required weighs 35 ozs Fits ASP BRAT ENVA FOX HP IRVINE K & B OS MAX ROYAL YS SUPER TIGRE mufflers available hobby shup ORDER DIRECT far immediate shipment Check MO. Visa MC. CODSEND 256 STAMP acceptedAdd$250fsrUPS$2OOforCODandf%ualeataa -FOR ADDtTIONAL INFO L Calif residentAND JTEC CATALOG William Winter spent much youth mem orizing 1942 edition now have b 1946 edi tion worth time spent shopping old book stores copy same author has new book print called World Model Airplanes published Scribners modern book overview current modeling activities well done chapter Free Flight techniques excel lent preceded chapters materials tools construction covering etc apply sorts models fine book beginner age try get copy Forties book really Old-Timers current book similar title World Model Aircraft Guy Williams published Chartwell Books Inc fine book too think Winters better two think should get interested Old-Timer gas-powered models copy Air Age Gas Models collection best Gas model articles Model Airplane News up until time first printing 1938 course long out printbut Hannans Run way has some copies much else interest Old-Timer enthusiast Send Runway two bucks its catalog Hannans Runway PO Box Escondido CA 92025 Some other out-of-print books worth looking Footes Model Engines Aerody namics Model Airplanes real trea sures copy Model Motor Manual Louis Garami Howard McEntee So check lo cal used-book shop look old books li brary throwing out look books well engines go garage sales flea 182 Model Aviation Efeady-no-nIyI 8396 ea plus 1 uu per oroer Florlo Flyer Corp 1 837 Jolsnaonburg Rd St Marys PA 15857 I
Edition: Model Aviation - 1989/03
Page Numbers: 72, 73, 180, 181, 182
AMONG enjoyable aspects competi tion flying season opportunity travel throughout country various meets within reasonable driving distance weekends Renew ing old acquaintances making new ones two activities always rank high list favorite things does chance observe first hand new developments art science Free Flight Denvers Magnificent Mountain Men Club har bors some nations best innova tive fliers its midst its always pleasure include least its contests travel ogue plans does have good monthly flying meets its excellent site southeast Den ver designates certain meets various purposes such emphasizing specific events encourage club members build outside area specialization So early summer meet tended promoted event Pee Wee 30 originally developed Californias Orbi teers Club encourage beginners participation gas-powered FF fliers such Bill Gies kieng present novel approaches event guaranteed As accompanying photo reveals Bills Pee Wee 30 has high thrust line single bladed prop shock-mounted wings variable thrust line adjustment feature electronic beeper aid retrieving plane after flight second photo Bill shows FAI high thrust line folding-wing design test bed con figuration uses foam plastic wing Doug Joyce New Orleans LA 12th 88 US FF FAI team finals re fined Lightning canard design Plane has aluminum-skinned wings Selig timer under main vertical fin auto surfaces Goldberg Skylark RC model simulates symmetrical airfoil configuration FiC plane during its powered climb mode wings folded Labor Day weekend another opportunity get amongst some excellent fliers further south journeyed Ft Worth TX Planesmens annual Labor Day bash weather uncharacteristically uncooperative Tom Peadon returned FF competition af ter extended layoff HIs US Kid HLQ de sign developed part joint project Kit Bays Dick Mathis US Kid still being kitted Campbells Custom Kits Don Ross new book Rubber Powen el Airplanes now available $12 postage Motorbooks Internation Box 1 Osceola WI 54020 1 book aimed beginner FF year expressing itself rain c high winds Free Flight compctitors wc times past showed up abundance meet truly plesurable experience Returning Free Flight wars afte decade Mike Hallu McFarland Bill Chenault Ton ntinuing 11 known making hiatus Larry Peadon Ken Phair Denver CO main stays Magnicent Mountain Mens Free Flight club also happens have won 88 US FAI FF team finals Model features aluminum-skinned surfaces 72 Model Aviation Free Flight Duration Larry Knhse Box 1137 LIberal KS 67901 HiLine Ltd has two new offerings Electric enthusiasts L MES-4 minimotor kit fprm models up 150 sq wing area R Imp can power models weighing up tq 10 oz Theres information both items column Typical Czech/Hungarian CO2 Duration mod el uses very light structure exposed tank cooling heavy-duty filler resistance damage Plane/photo Fritz Mueller d Mod 5 plus al PO 8-page lubber ec,am Bill Gieskieng Denver CO assembles testbed wing FAI Power FiC high thrustline folding wing design Foam wing Goldberg Skylark kit Symmetrical airfoil section mimics folded wing used plane competition hi_ 0Il us Another Gieskieng project high-thrustline low-wing Pee Wee 30 design Note carbon-fiber reinforcement wing spars adjustable thrustline rubberband shock-mounted wing panes elec tronic beeper just rear pylon among others Sixties Seventies Tom Peadon particular looked worse wear cajoled testing arm US Kid HLG designed published Flying Models magazine 1973 part composite project Kit Bays Dick Fast Richard Mathis Welcome back guys great see again Less Conventional wisdom suggests CO2 motors run best warm weather fact have seen modelers warming CO2 capsules under arms blowing warm breath ex posed CO2 tanks resorting other ploys -4 US Kid competitive Outdoor Hand-Launched Glider originally designed pub lished Tom Peadon 1973 Kit available Campbells Custom Kits Plan pre sented through courtesy Flying Models magazine warm tank CO2 prior charging motor modelers confusing higher pressure tank created warming CO2 increased volume gas tank what theyre actually seeking reality situation CO2 motors run best temperatures under 80 0F creased volume CO2 tarj can actually achieved cooling tank anWthe charger warming Fritz Mueller Col mbus GA has done some rather extensive experimentation CO2 pres sure psi relative gas volume ambient con ditions based upon practices Czechoslova kian Hungarian modelers able rou tinely achieve motor runs excess 90 seconds motor units essentially come Out box As accompanying photo shows tanks mounted completely exposed allow access cooling Some modelers cooling tanks using aerosol cooling sprays others us ing ice tanks accessible such Scale mod els tank first charged bled off Total Impulse Chart J Jet-X -Rubber Power 1 1 ELL 5 10 Time seconds -15 S C Figure Above Thrust vs time characteristics rubberpowered propeller Jet-X rocket motor Figure B R Results survey Outdoor FF Power models relates field category wing area engine displacement Source Max-Ouf newsletter back through filler valve keep mo tor feed line freezing up re charged its run Fritzs numbers show first charge puts about 15cc liquid CO2 5cc tank After bleeding charge off described above second charge puts 35cc liquid tank have conducted same type volumetric testing simply timing motor run spare Telco Turbo unit using suggested bleed-off procedure raises length motor run average 42 seconds average 74 seconds room temperature 72 0 F Fritz will publishing extensive article cooling CO2 units complete density isogram upcoming issue Model Builder magazine Watch youre CO2 Up up away Roger Wathens long vigi lance keeping last embers Jetex glowing newsletter P-s-s-s-t Off Sheet has Continued page 180 wiag Area vs Engine Displacement / / 500 / / / 400 / / / / /category category II dme 200/category III 100 o05101520 Engine Displacement cu 2530- 35 uu / / Soc March 1989 73 L FRONT VIEW 4 FIN MK 231 OR PFM 3200 Mooney 1/5th SCALE SEMI-KIT WAYNE SIEWERT AMA NATS 1st PLACE WINNER 1988 NATS EXPERT PORSCHE FI7TED MOONEY Instructions Scale Spinner WAYNE SIEWERT 2837 18th Ave So MPLS MN 55407 USA 612-722-7564 RADIO 4-6 CHANNEL ENGINE 90-1082 CYCLE 120-4 CYCLE SPAN 88 AREA 9SOSQIN WEIGHT 12-15# Argosy 1/Haught Continued page 177 well basic rigging pattern shown plan final challenge run lead-outs through maze Use sharpened piece music wire hand drill necessary holes lead-outs through nacelle lead-outs prototype extend few inches beyond nacelles makes less cluttered looking model lead-out guide clamps onto last set interplane struts added flying parts making guide shown plans two long plywood strips glued together space tween Notice line hole identical both strips slots leading holes different front strip slot exits bottom back strip exits top Clamp lead-out guide wing strut line hole about 1 above lower wing flying lines individ ually slipped between strips gap spacer provides bottom side Lead wire through slots hole front back Repeat steps three lines lot easier to explain works well Still happen less vain about biplanes might elect simply glue guide place have done Add engines check thrust gles like super-reliable Cox 049s outer engines because theyre easy start manage main en gine used K&B 40 RC has enough reserve fly Argosy its own Test run engines balance model youre set flying field Twin engines lot fun Triples better Care must taken during starting procedure recommend remove dummy engines before fueling three engines giving warm up run After topping off tanks start engines sequence outboard en gine inboard very care fully main engine Before takeoff re fill running 049s using long exten sion filler plastic tubing Argosy will take off three engines set low throttle main throttle increased touch-and-goes windy conditions things certain Flying piece avi ation history lot easier trying re construct imagination Having ap proached Argosy both angles can vouch Enjoy piece 1926 surely have responding advertisers mention read about ModelAviation FF Duration/Kruse Continued page 73 rewarded return Rocket power its new form Jet-X 50-Z motor new motor seems identical old Jetex 50 Hell-Cat except its nozzle orifice has enlarged ash screen inside has omitted So too has old asbestos/paper gasket ex changed appears rubber composite well new motor performs still mat ter conjecture circles Some modelers report difficulty ignition sequence de scribed product literature others re port no problems seem very pleased motors Available thrust has also largely matter conjecture point advertising litera ture claims powerful longer running Thanks again Fritz Mueller able chart average thrust duration new motor What being shown dot ted line Figure thrust characteristic 12-in loop i/o-in rubber wound 250 turns turning 6-in plastic prop solid line average thrust new Jet-X pellet burned new motor instructions supplied Jet-X warn new fuel pellets NOT used old Jetex motors RMcM Note unlike rubber thrust curve tends decrease almost straight linear fashion Jet-X thrust curve tends increase throughout flight maximum 10 grams thrust ap proximately 12 seconds flight before dropping off burnout own experience bears Out Fritzs analysis watched sheet balsa Jet-X design start High Performance Models presants ECL IPSE Designed Henry Piorun Former Canadian National Champion Canadian Team Member Designed Specifically FAI Pattern Flying Perform Equally Well Other AMA Classes Plug WIngs rglass Belly Pan Pro-Cut Moles WIng Joiner Tubes UltraDght Honeycomb Wlngoores fort 940460 OptIonal PlastIc Fiberglass Canopy Fiberglass Fuselage molded wing Joiner tube HIGH PERFORMANCE MODELS 9556 116 North Daita British Columbia 6Z4 Canada 604-588-0605 old timer perfectly proportioned modeung Curtlss Robin 049 Engines -Channei RIC 41 Wingspan Eiectrlc Power Optiansi Oh arOt Very few full scale sicrah aa ideally suited modal flight appealing old cuntiss Robin wan born spruce linen age beausfully proportroned rubber alactric glow engines Easy fun build tralnerllke performance Flyilne Models catalog SOS Pfrunn 7031 2730503 INE MODELS INC PO Box 2136 Fairfax Virginia 22031 usA 180 Model Aviation Fiberglass Cowlings Windshield Tip Lenses Plastic Elevator & Rudder Surfaces Rolled Plans Scale Documentation Full MORE iNFO BEND SABEJ Basic Kit $15000 Pra-Built Kit $35000 ladd $1500 Sil Send Check Money Order HI TECH GLASS EPPLER 214 134 WINGS TOTAL ENERGY SPAR ASSEMBUES NP CELL WING SHEETING SKINS Ill PERFORMANCE SAILPLANES offers high quaflty line epoxies glass cloth keviar laminates HP Cell wing sheeting skin vacuum bagging materIals honeycomb braided tubing fuselages wings Complete partial MIs Custom work Brochure send Si 00 SASE sample kIt $500 HI PERFORMANCE SAILPLANES 17902 NE 156th St Woodinvilie WA99072 206 487-1721 NEWSPACESAVING F Fits boa 2-112o7 3/So 9-1/8 FUEL CONTAINER Tough Rigid Polyethylene Includes tubing Fastarnera lock tubing through North Products PO Box 18419 cap sch postage Cleveland Heighta OH 44118 A Gal U EU Id Idli Ejur1 Sand SSAE cutalot sheet complete line gain tremendous amount altitude about 10 seconds its power pattern simply acceler ate out sight two-pellet charge Thanks Fritz interesting comparison Thats about size mentioned MMM Club Denver few paragraphs ago neglected mention fine newsletter Max-Our edited Rick Pangell debted Rick Bill Etherington plotting chart Figure B appeared recent sue Max-Our outgrowth several club conversations about appropriate size models use various engines chart provides handy reference select ing kit build given field size engine classification could also serve useful guide scratch-builder fledgling de signer An interesting feature chart point congruence Categories III Intersection 450 sq area 15 cu displacementa standard size FAI Power FlC ships New products such Some exciting news coming out cottage kitting industry iust time building season Campbells Custom Kits has two new George Perryman designs now production Gentleman Georges bent-winged bird Mulvihill called Super Maxer Speckled Bird available $2998 plus shipping smaller Fludy Coop Speckled Bird Coupe dHiver competi tion lists $2798 Both welcome additions array kits available serious Rubber fliers complete high-quality balsa tissue covering full-size plans plus quality weve learned expect Campbells Both available Campbells Custom Kits Box 5996 Lake Worth FL 33461-0181 Electric power enthusiasts have recently favored numerous new motor offerings last few months secmingly bit lighter bit powerful its predecessor Now HiLine Ltd company formed Tom Schmitt Don Srull come two new mo tors applicable sport Scale Duration ships new MES-4 mini-electric motor kit everything needed complete system suit able models 100-150 sq wing area all-up weight 3-5 oz kit has parts motor itself switch harness 100niAh three-cell battery prop charge plug all-up weight 53 grams larger motor HiLine 30-watt Imp kit comes ready hook up three NiCd cells least 150 mAh capacity motor draws approximately 10 amps can fitted aS x 3 6 x 3 prop models up 10 oz total weight system itself weighs 115 grams 275-mAb battery MES-4 kit goes $1895 plus 10% P&H Imp includes motor prop adapter mounting screws complete instruc lions very reasonable $1095 plus 10% P&H HiLine Ltd PO Box 341283 Bethesda MD 20817 0 Over 70 aviation publications ranging classic Zaic volumes through collections 50 years British aeromodeling available Hannans Runway constantly growing busi ness venture Joan Hannan Bills better half Begun 1985 heralded one-page flyer Hannans Runway has now grown ex tent having 36-page illustrated catalog listing plans rubber supplies cards rubber stamps fly ing accessories aforementioned publica tions As well featuring unusual collection DO YOU HAVE THE SHOEBOX BLUES 4 Evetyone gets have cure CMP field boxes Built machine cut 1/4 mahogany ply designed discriminating modelers like yourself give us call today Also dont miss FREE ACCESSORIES CATALOG kit IPKK-0101 $2595 ppda assem PKR-0201 $3995 ppd Leg kit available C17 Field boxes much Colorado Model Products Inc 555 Alter St #25 FOB 550 Broomfield CO 80020Dept MA 303465-5993 h 1989 181 Large Scala Miniatura AIrcraft Daslan Orawinga Harb iiaii IMAA 14W 1 llhscaloAaroncac3e5 wino27OOIpp 2 15 Scala sac-a Haildiva 00 wing aimIOOOOpo 329/10 scale seo5 Oauntlass 03 wing35OO/op 4 1/5 scale AO3o 4 Osuglas Okyraiiiar3OOO/pp 5 51a5 Wing Sag/nsa, Oae Plane2500/po Sand 200 far campieta nataing ta OP Systems inc. 1842 Tattanhail Hanatan TX 77006 i713195aee4o17131ee4-oaea FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL S[ON IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 #11 BIadesr~ 1I4O Pack $485 DelIvered 100 Pack $895 Berkeley TradIng Ca PO Box 26 Berkeley Springs WV 25411 1 ~ S WE BUILD YOUR HELl TEST YOUR HELl \\REPAIRYOURHELI 322North7thSt 6is ghton Pa 18235 WRITE OR CALL FOR INFORMA TION wonins aIscasr scALe scorn sesncanec PHone aAens PLANS 3 VISWS PHOTO-PACKS PLANS ENLARGING SAnE Enlnglaa neat 3m Pepinos Catalog *400 So page SCALE PLANS PHOTO SERVICE - 3209 Madsen 0aansbern N 27403 psora 119191 23g INs collaclI PIT-KIT Jr LiTRES /0//ECISION inSTRUMtNIS -nILLS METALS BOOKs COI/P.tTS C/ITSOG $200 UOOnoF item TDLS CD L n n Seina Road Sprogfonio O/0o 0550/ 5/ 13 3020562 Post paid to 48 enntigt.va AC4LtZS CODs add $300 MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT K CHARGE T ANT START COST PROPSPRITEMSCHAERIES $1495VLI11$2495EFC 5005 dinengage Free-Includes HY-70 BProps Charge Cord andUrn cost Quick CharBattenes Rt4#es cluoed snaps onto motorConnector Accesspacers etc4 0 type hattenes $1795VL-111RFC-402 ler 71b leads wrth QuickSame VUiideal accuratelyny VL Flight Batty MotucTo subatibnAbove chargVL Field box 10 size modelsFUGHT BATTERIES Vt 102B-62 HY-70 2050 nA-Hr $ 995 $1395Includes HY-42 Motor P-i PW5-63 HY-70 3050 mA-Hr 5 02 fuel engineCharge Plug Cord AeasorB-33L HV-42 3x tOO mA-Hr 1295 B-34L I-f Y-42 4o 100 nrA-Hr 1595 B-13L HY-42 3o 160 mA-Hr 34 grams1295 B-14L HY-42 4x 190 nsA-Hr 45 grams 1595 3-303L HY-42 3o 450 mA-Hr 64 grams129$ aviation items Hannans Runway features prompt efficient service orders shipped within 48 hours new catalog Runway $2 mailed PO Box Escon dido CA 92025 eagerly awaited book Don Ross Rubber Powered Model Airplanes has now pub lished Motorbooks International PO Box 1 Osceola WI 54020 intent book take new mod eler beginner competitor stages gradual understandable steps accompanied illustrations photos amplifing text books 168 pages explore rubber-powered models simplest stick model ad vanced contest ships Sections dealing construction covering props rubber winding flight trim some essential topics included Jim Kamans il lustrations three plans can easily scaled up provide visual inspiration new modeler avenue direct hands-on expe rience get novice builder started immedi ately road modeling success Rubber Powered Model Airplanes can dered mail address above $1295 plus $395 P&H Buy beginner youre trying encourage try Free Right FF Old-Timers/Baker Continued page 74 way look color wood clue its density flex wood hands can easily pick out hard pieces soft ones will result hav ing big pile sticks middle two little piles hope basic things help some obvious cant cover everything space have magazine letters let know what problem areas arc sure help Coming up suggested modifications Lanzo Stick SAM Society Antique Modelersed competition something about motor mounts removable ignition systems malcing folding props . what else need some helpful books available Some recent some out printbut may able find latter search dili gently new ones looks very good Rubber Powered Model Airplanes Don Ross (Editors note Larry Kruse also mentions oneand has photo coverin months FF Duration column RMcM just about Old-Timer models about Rub ber power general very up date terms modem practice such use torque meters winding tubes winding hooks such basic stuff rubber lube tying knots pert want fly Rubber need book expert should buy book give friends trying learn fine book much better 1982 book similar title written Robert Smith fortunately out print Smiths book disappointment can order copy Don Ross book di rectiy publisher $1695 cludes postage Send Motorbooks Interna tional PO Box 1 Osceola WI 54020 lot Model Aircraft Handbook SAVE YOUR FIELD SNUF-LER muffler low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions 3 10 decibels quieter stock muffler No power loss possible 300-600 RPM Increase Improves engine idle s better fuel economy Easily attached 25-1 08 stock mufflers Heat corrosion resistant Black E coat finish No special adspters required weighs 35 ozs Fits ASP BRAT ENVA FOX HP IRVINE K & B OS MAX ROYAL YS SUPER TIGRE mufflers available hobby shup ORDER DIRECT far immediate shipment Check MO. Visa MC. CODSEND 256 STAMP acceptedAdd$250fsrUPS$2OOforCODandf%ualeataa -FOR ADDtTIONAL INFO L Calif residentAND JTEC CATALOG William Winter spent much youth mem orizing 1942 edition now have b 1946 edi tion worth time spent shopping old book stores copy same author has new book print called World Model Airplanes published Scribners modern book overview current modeling activities well done chapter Free Flight techniques excel lent preceded chapters materials tools construction covering etc apply sorts models fine book beginner age try get copy Forties book really Old-Timers current book similar title World Model Aircraft Guy Williams published Chartwell Books Inc fine book too think Winters better two think should get interested Old-Timer gas-powered models copy Air Age Gas Models collection best Gas model articles Model Airplane News up until time first printing 1938 course long out printbut Hannans Run way has some copies much else interest Old-Timer enthusiast Send Runway two bucks its catalog Hannans Runway PO Box Escondido CA 92025 Some other out-of-print books worth looking Footes Model Engines Aerody namics Model Airplanes real trea sures copy Model Motor Manual Louis Garami Howard McEntee So check lo cal used-book shop look old books li brary throwing out look books well engines go garage sales flea 182 Model Aviation Efeady-no-nIyI 8396 ea plus 1 uu per oroer Florlo Flyer Corp 1 837 Jolsnaonburg Rd St Marys PA 15857 I
Edition: Model Aviation - 1989/03
Page Numbers: 72, 73, 180, 181, 182
AMONG enjoyable aspects competi tion flying season opportunity travel throughout country various meets within reasonable driving distance weekends Renew ing old acquaintances making new ones two activities always rank high list favorite things does chance observe first hand new developments art science Free Flight Denvers Magnificent Mountain Men Club har bors some nations best innova tive fliers its midst its always pleasure include least its contests travel ogue plans does have good monthly flying meets its excellent site southeast Den ver designates certain meets various purposes such emphasizing specific events encourage club members build outside area specialization So early summer meet tended promoted event Pee Wee 30 originally developed Californias Orbi teers Club encourage beginners participation gas-powered FF fliers such Bill Gies kieng present novel approaches event guaranteed As accompanying photo reveals Bills Pee Wee 30 has high thrust line single bladed prop shock-mounted wings variable thrust line adjustment feature electronic beeper aid retrieving plane after flight second photo Bill shows FAI high thrust line folding-wing design test bed con figuration uses foam plastic wing Doug Joyce New Orleans LA 12th 88 US FF FAI team finals re fined Lightning canard design Plane has aluminum-skinned wings Selig timer under main vertical fin auto surfaces Goldberg Skylark RC model simulates symmetrical airfoil configuration FiC plane during its powered climb mode wings folded Labor Day weekend another opportunity get amongst some excellent fliers further south journeyed Ft Worth TX Planesmens annual Labor Day bash weather uncharacteristically uncooperative Tom Peadon returned FF competition af ter extended layoff HIs US Kid HLQ de sign developed part joint project Kit Bays Dick Mathis US Kid still being kitted Campbells Custom Kits Don Ross new book Rubber Powen el Airplanes now available $12 postage Motorbooks Internation Box 1 Osceola WI 54020 1 book aimed beginner FF year expressing itself rain c high winds Free Flight compctitors wc times past showed up abundance meet truly plesurable experience Returning Free Flight wars afte decade Mike Hallu McFarland Bill Chenault Ton ntinuing 11 known making hiatus Larry Peadon Ken Phair Denver CO main stays Magnicent Mountain Mens Free Flight club also happens have won 88 US FAI FF team finals Model features aluminum-skinned surfaces 72 Model Aviation Free Flight Duration Larry Knhse Box 1137 LIberal KS 67901 HiLine Ltd has two new offerings Electric enthusiasts L MES-4 minimotor kit fprm models up 150 sq wing area R Imp can power models weighing up tq 10 oz Theres information both items column Typical Czech/Hungarian CO2 Duration mod el uses very light structure exposed tank cooling heavy-duty filler resistance damage Plane/photo Fritz Mueller d Mod 5 plus al PO 8-page lubber ec,am Bill Gieskieng Denver CO assembles testbed wing FAI Power FiC high thrustline folding wing design Foam wing Goldberg Skylark kit Symmetrical airfoil section mimics folded wing used plane competition hi_ 0Il us Another Gieskieng project high-thrustline low-wing Pee Wee 30 design Note carbon-fiber reinforcement wing spars adjustable thrustline rubberband shock-mounted wing panes elec tronic beeper just rear pylon among others Sixties Seventies Tom Peadon particular looked worse wear cajoled testing arm US Kid HLG designed published Flying Models magazine 1973 part composite project Kit Bays Dick Fast Richard Mathis Welcome back guys great see again Less Conventional wisdom suggests CO2 motors run best warm weather fact have seen modelers warming CO2 capsules under arms blowing warm breath ex posed CO2 tanks resorting other ploys -4 US Kid competitive Outdoor Hand-Launched Glider originally designed pub lished Tom Peadon 1973 Kit available Campbells Custom Kits Plan pre sented through courtesy Flying Models magazine warm tank CO2 prior charging motor modelers confusing higher pressure tank created warming CO2 increased volume gas tank what theyre actually seeking reality situation CO2 motors run best temperatures under 80 0F creased volume CO2 tarj can actually achieved cooling tank anWthe charger warming Fritz Mueller Col mbus GA has done some rather extensive experimentation CO2 pres sure psi relative gas volume ambient con ditions based upon practices Czechoslova kian Hungarian modelers able rou tinely achieve motor runs excess 90 seconds motor units essentially come Out box As accompanying photo shows tanks mounted completely exposed allow access cooling Some modelers cooling tanks using aerosol cooling sprays others us ing ice tanks accessible such Scale mod els tank first charged bled off Total Impulse Chart J Jet-X -Rubber Power 1 1 ELL 5 10 Time seconds -15 S C Figure Above Thrust vs time characteristics rubberpowered propeller Jet-X rocket motor Figure B R Results survey Outdoor FF Power models relates field category wing area engine displacement Source Max-Ouf newsletter back through filler valve keep mo tor feed line freezing up re charged its run Fritzs numbers show first charge puts about 15cc liquid CO2 5cc tank After bleeding charge off described above second charge puts 35cc liquid tank have conducted same type volumetric testing simply timing motor run spare Telco Turbo unit using suggested bleed-off procedure raises length motor run average 42 seconds average 74 seconds room temperature 72 0 F Fritz will publishing extensive article cooling CO2 units complete density isogram upcoming issue Model Builder magazine Watch youre CO2 Up up away Roger Wathens long vigi lance keeping last embers Jetex glowing newsletter P-s-s-s-t Off Sheet has Continued page 180 wiag Area vs Engine Displacement / / 500 / / / 400 / / / / /category category II dme 200/category III 100 o05101520 Engine Displacement cu 2530- 35 uu / / Soc March 1989 73 L FRONT VIEW 4 FIN MK 231 OR PFM 3200 Mooney 1/5th SCALE SEMI-KIT WAYNE SIEWERT AMA NATS 1st PLACE WINNER 1988 NATS EXPERT PORSCHE FI7TED MOONEY Instructions Scale Spinner WAYNE SIEWERT 2837 18th Ave So MPLS MN 55407 USA 612-722-7564 RADIO 4-6 CHANNEL ENGINE 90-1082 CYCLE 120-4 CYCLE SPAN 88 AREA 9SOSQIN WEIGHT 12-15# Argosy 1/Haught Continued page 177 well basic rigging pattern shown plan final challenge run lead-outs through maze Use sharpened piece music wire hand drill necessary holes lead-outs through nacelle lead-outs prototype extend few inches beyond nacelles makes less cluttered looking model lead-out guide clamps onto last set interplane struts added flying parts making guide shown plans two long plywood strips glued together space tween Notice line hole identical both strips slots leading holes different front strip slot exits bottom back strip exits top Clamp lead-out guide wing strut line hole about 1 above lower wing flying lines individ ually slipped between strips gap spacer provides bottom side Lead wire through slots hole front back Repeat steps three lines lot easier to explain works well Still happen less vain about biplanes might elect simply glue guide place have done Add engines check thrust gles like super-reliable Cox 049s outer engines because theyre easy start manage main en gine used K&B 40 RC has enough reserve fly Argosy its own Test run engines balance model youre set flying field Twin engines lot fun Triples better Care must taken during starting procedure recommend remove dummy engines before fueling three engines giving warm up run After topping off tanks start engines sequence outboard en gine inboard very care fully main engine Before takeoff re fill running 049s using long exten sion filler plastic tubing Argosy will take off three engines set low throttle main throttle increased touch-and-goes windy conditions things certain Flying piece avi ation history lot easier trying re construct imagination Having ap proached Argosy both angles can vouch Enjoy piece 1926 surely have responding advertisers mention read about ModelAviation FF Duration/Kruse Continued page 73 rewarded return Rocket power its new form Jet-X 50-Z motor new motor seems identical old Jetex 50 Hell-Cat except its nozzle orifice has enlarged ash screen inside has omitted So too has old asbestos/paper gasket ex changed appears rubber composite well new motor performs still mat ter conjecture circles Some modelers report difficulty ignition sequence de scribed product literature others re port no problems seem very pleased motors Available thrust has also largely matter conjecture point advertising litera ture claims powerful longer running Thanks again Fritz Mueller able chart average thrust duration new motor What being shown dot ted line Figure thrust characteristic 12-in loop i/o-in rubber wound 250 turns turning 6-in plastic prop solid line average thrust new Jet-X pellet burned new motor instructions supplied Jet-X warn new fuel pellets NOT used old Jetex motors RMcM Note unlike rubber thrust curve tends decrease almost straight linear fashion Jet-X thrust curve tends increase throughout flight maximum 10 grams thrust ap proximately 12 seconds flight before dropping off burnout own experience bears Out Fritzs analysis watched sheet balsa Jet-X design start High Performance Models presants ECL IPSE Designed Henry Piorun Former Canadian National Champion Canadian Team Member Designed Specifically FAI Pattern Flying Perform Equally Well Other AMA Classes Plug WIngs rglass Belly Pan Pro-Cut Moles WIng Joiner Tubes UltraDght Honeycomb Wlngoores fort 940460 OptIonal PlastIc Fiberglass Canopy Fiberglass Fuselage molded wing Joiner tube HIGH PERFORMANCE MODELS 9556 116 North Daita British Columbia 6Z4 Canada 604-588-0605 old timer perfectly proportioned modeung Curtlss Robin 049 Engines -Channei RIC 41 Wingspan Eiectrlc Power Optiansi Oh arOt Very few full scale sicrah aa ideally suited modal flight appealing old cuntiss Robin wan born spruce linen age beausfully proportroned rubber alactric glow engines Easy fun build tralnerllke performance Flyilne Models catalog SOS Pfrunn 7031 2730503 INE MODELS INC PO Box 2136 Fairfax Virginia 22031 usA 180 Model Aviation Fiberglass Cowlings Windshield Tip Lenses Plastic Elevator & Rudder Surfaces Rolled Plans Scale Documentation Full MORE iNFO BEND SABEJ Basic Kit $15000 Pra-Built Kit $35000 ladd $1500 Sil Send Check Money Order HI TECH GLASS EPPLER 214 134 WINGS TOTAL ENERGY SPAR ASSEMBUES NP CELL WING SHEETING SKINS Ill PERFORMANCE SAILPLANES offers high quaflty line epoxies glass cloth keviar laminates HP Cell wing sheeting skin vacuum bagging materIals honeycomb braided tubing fuselages wings Complete partial MIs Custom work Brochure send Si 00 SASE sample kIt $500 HI PERFORMANCE SAILPLANES 17902 NE 156th St Woodinvilie WA99072 206 487-1721 NEWSPACESAVING F Fits boa 2-112o7 3/So 9-1/8 FUEL CONTAINER Tough Rigid Polyethylene Includes tubing Fastarnera lock tubing through North Products PO Box 18419 cap sch postage Cleveland Heighta OH 44118 A Gal U EU Id Idli Ejur1 Sand SSAE cutalot sheet complete line gain tremendous amount altitude about 10 seconds its power pattern simply acceler ate out sight two-pellet charge Thanks Fritz interesting comparison Thats about size mentioned MMM Club Denver few paragraphs ago neglected mention fine newsletter Max-Our edited Rick Pangell debted Rick Bill Etherington plotting chart Figure B appeared recent sue Max-Our outgrowth several club conversations about appropriate size models use various engines chart provides handy reference select ing kit build given field size engine classification could also serve useful guide scratch-builder fledgling de signer An interesting feature chart point congruence Categories III Intersection 450 sq area 15 cu displacementa standard size FAI Power FlC ships New products such Some exciting news coming out cottage kitting industry iust time building season Campbells Custom Kits has two new George Perryman designs now production Gentleman Georges bent-winged bird Mulvihill called Super Maxer Speckled Bird available $2998 plus shipping smaller Fludy Coop Speckled Bird Coupe dHiver competi tion lists $2798 Both welcome additions array kits available serious Rubber fliers complete high-quality balsa tissue covering full-size plans plus quality weve learned expect Campbells Both available Campbells Custom Kits Box 5996 Lake Worth FL 33461-0181 Electric power enthusiasts have recently favored numerous new motor offerings last few months secmingly bit lighter bit powerful its predecessor Now HiLine Ltd company formed Tom Schmitt Don Srull come two new mo tors applicable sport Scale Duration ships new MES-4 mini-electric motor kit everything needed complete system suit able models 100-150 sq wing area all-up weight 3-5 oz kit has parts motor itself switch harness 100niAh three-cell battery prop charge plug all-up weight 53 grams larger motor HiLine 30-watt Imp kit comes ready hook up three NiCd cells least 150 mAh capacity motor draws approximately 10 amps can fitted aS x 3 6 x 3 prop models up 10 oz total weight system itself weighs 115 grams 275-mAb battery MES-4 kit goes $1895 plus 10% P&H Imp includes motor prop adapter mounting screws complete instruc lions very reasonable $1095 plus 10% P&H HiLine Ltd PO Box 341283 Bethesda MD 20817 0 Over 70 aviation publications ranging classic Zaic volumes through collections 50 years British aeromodeling available Hannans Runway constantly growing busi ness venture Joan Hannan Bills better half Begun 1985 heralded one-page flyer Hannans Runway has now grown ex tent having 36-page illustrated catalog listing plans rubber supplies cards rubber stamps fly ing accessories aforementioned publica tions As well featuring unusual collection DO YOU HAVE THE SHOEBOX BLUES 4 Evetyone gets have cure CMP field boxes Built machine cut 1/4 mahogany ply designed discriminating modelers like yourself give us call today Also dont miss FREE ACCESSORIES CATALOG kit IPKK-0101 $2595 ppda assem PKR-0201 $3995 ppd Leg kit available C17 Field boxes much Colorado Model Products Inc 555 Alter St #25 FOB 550 Broomfield CO 80020Dept MA 303465-5993 h 1989 181 Large Scala Miniatura AIrcraft Daslan Orawinga Harb iiaii IMAA 14W 1 llhscaloAaroncac3e5 wino27OOIpp 2 15 Scala sac-a Haildiva 00 wing aimIOOOOpo 329/10 scale seo5 Oauntlass 03 wing35OO/op 4 1/5 scale AO3o 4 Osuglas Okyraiiiar3OOO/pp 5 51a5 Wing Sag/nsa, Oae Plane2500/po Sand 200 far campieta nataing ta OP Systems inc. 1842 Tattanhail Hanatan TX 77006 i713195aee4o17131ee4-oaea FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL S[ON IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 #11 BIadesr~ 1I4O Pack $485 DelIvered 100 Pack $895 Berkeley TradIng Ca PO Box 26 Berkeley Springs WV 25411 1 ~ S WE BUILD YOUR HELl TEST YOUR HELl \\REPAIRYOURHELI 322North7thSt 6is ghton Pa 18235 WRITE OR CALL FOR INFORMA TION wonins aIscasr scALe scorn sesncanec PHone aAens PLANS 3 VISWS PHOTO-PACKS PLANS ENLARGING SAnE Enlnglaa neat 3m Pepinos Catalog *400 So page SCALE PLANS PHOTO SERVICE - 3209 Madsen 0aansbern N 27403 psora 119191 23g INs collaclI PIT-KIT Jr LiTRES /0//ECISION inSTRUMtNIS -nILLS METALS BOOKs COI/P.tTS C/ITSOG $200 UOOnoF item TDLS CD L n n Seina Road Sprogfonio O/0o 0550/ 5/ 13 3020562 Post paid to 48 enntigt.va AC4LtZS CODs add $300 MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT K CHARGE T ANT START COST PROPSPRITEMSCHAERIES $1495VLI11$2495EFC 5005 dinengage Free-Includes HY-70 BProps Charge Cord andUrn cost Quick CharBattenes Rt4#es cluoed snaps onto motorConnector Accesspacers etc4 0 type hattenes $1795VL-111RFC-402 ler 71b leads wrth QuickSame VUiideal accuratelyny VL Flight Batty MotucTo subatibnAbove chargVL Field box 10 size modelsFUGHT BATTERIES Vt 102B-62 HY-70 2050 nA-Hr $ 995 $1395Includes HY-42 Motor P-i PW5-63 HY-70 3050 mA-Hr 5 02 fuel engineCharge Plug Cord AeasorB-33L HV-42 3x tOO mA-Hr 1295 B-34L I-f Y-42 4o 100 nrA-Hr 1595 B-13L HY-42 3o 160 mA-Hr 34 grams1295 B-14L HY-42 4x 190 nsA-Hr 45 grams 1595 3-303L HY-42 3o 450 mA-Hr 64 grams129$ aviation items Hannans Runway features prompt efficient service orders shipped within 48 hours new catalog Runway $2 mailed PO Box Escon dido CA 92025 eagerly awaited book Don Ross Rubber Powered Model Airplanes has now pub lished Motorbooks International PO Box 1 Osceola WI 54020 intent book take new mod eler beginner competitor stages gradual understandable steps accompanied illustrations photos amplifing text books 168 pages explore rubber-powered models simplest stick model ad vanced contest ships Sections dealing construction covering props rubber winding flight trim some essential topics included Jim Kamans il lustrations three plans can easily scaled up provide visual inspiration new modeler avenue direct hands-on expe rience get novice builder started immedi ately road modeling success Rubber Powered Model Airplanes can dered mail address above $1295 plus $395 P&H Buy beginner youre trying encourage try Free Right FF Old-Timers/Baker Continued page 74 way look color wood clue its density flex wood hands can easily pick out hard pieces soft ones will result hav ing big pile sticks middle two little piles hope basic things help some obvious cant cover everything space have magazine letters let know what problem areas arc sure help Coming up suggested modifications Lanzo Stick SAM Society Antique Modelersed competition something about motor mounts removable ignition systems malcing folding props . what else need some helpful books available Some recent some out printbut may able find latter search dili gently new ones looks very good Rubber Powered Model Airplanes Don Ross (Editors note Larry Kruse also mentions oneand has photo coverin months FF Duration column RMcM just about Old-Timer models about Rub ber power general very up date terms modem practice such use torque meters winding tubes winding hooks such basic stuff rubber lube tying knots pert want fly Rubber need book expert should buy book give friends trying learn fine book much better 1982 book similar title written Robert Smith fortunately out print Smiths book disappointment can order copy Don Ross book di rectiy publisher $1695 cludes postage Send Motorbooks Interna tional PO Box 1 Osceola WI 54020 lot Model Aircraft Handbook SAVE YOUR FIELD SNUF-LER muffler low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions 3 10 decibels quieter stock muffler No power loss possible 300-600 RPM Increase Improves engine idle s better fuel economy Easily attached 25-1 08 stock mufflers Heat corrosion resistant Black E coat finish No special adspters required weighs 35 ozs Fits ASP BRAT ENVA FOX HP IRVINE K & B OS MAX ROYAL YS SUPER TIGRE mufflers available hobby shup ORDER DIRECT far immediate shipment Check MO. Visa MC. CODSEND 256 STAMP acceptedAdd$250fsrUPS$2OOforCODandf%ualeataa -FOR ADDtTIONAL INFO L Calif residentAND JTEC CATALOG William Winter spent much youth mem orizing 1942 edition now have b 1946 edi tion worth time spent shopping old book stores copy same author has new book print called World Model Airplanes published Scribners modern book overview current modeling activities well done chapter Free Flight techniques excel lent preceded chapters materials tools construction covering etc apply sorts models fine book beginner age try get copy Forties book really Old-Timers current book similar title World Model Aircraft Guy Williams published Chartwell Books Inc fine book too think Winters better two think should get interested Old-Timer gas-powered models copy Air Age Gas Models collection best Gas model articles Model Airplane News up until time first printing 1938 course long out printbut Hannans Run way has some copies much else interest Old-Timer enthusiast Send Runway two bucks its catalog Hannans Runway PO Box Escondido CA 92025 Some other out-of-print books worth looking Footes Model Engines Aerody namics Model Airplanes real trea sures copy Model Motor Manual Louis Garami Howard McEntee So check lo cal used-book shop look old books li brary throwing out look books well engines go garage sales flea 182 Model Aviation Efeady-no-nIyI 8396 ea plus 1 uu per oroer Florlo Flyer Corp 1 837 Jolsnaonburg Rd St Marys PA 15857 I
Edition: Model Aviation - 1989/03
Page Numbers: 72, 73, 180, 181, 182
AMONG enjoyable aspects competi tion flying season opportunity travel throughout country various meets within reasonable driving distance weekends Renew ing old acquaintances making new ones two activities always rank high list favorite things does chance observe first hand new developments art science Free Flight Denvers Magnificent Mountain Men Club har bors some nations best innova tive fliers its midst its always pleasure include least its contests travel ogue plans does have good monthly flying meets its excellent site southeast Den ver designates certain meets various purposes such emphasizing specific events encourage club members build outside area specialization So early summer meet tended promoted event Pee Wee 30 originally developed Californias Orbi teers Club encourage beginners participation gas-powered FF fliers such Bill Gies kieng present novel approaches event guaranteed As accompanying photo reveals Bills Pee Wee 30 has high thrust line single bladed prop shock-mounted wings variable thrust line adjustment feature electronic beeper aid retrieving plane after flight second photo Bill shows FAI high thrust line folding-wing design test bed con figuration uses foam plastic wing Doug Joyce New Orleans LA 12th 88 US FF FAI team finals re fined Lightning canard design Plane has aluminum-skinned wings Selig timer under main vertical fin auto surfaces Goldberg Skylark RC model simulates symmetrical airfoil configuration FiC plane during its powered climb mode wings folded Labor Day weekend another opportunity get amongst some excellent fliers further south journeyed Ft Worth TX Planesmens annual Labor Day bash weather uncharacteristically uncooperative Tom Peadon returned FF competition af ter extended layoff HIs US Kid HLQ de sign developed part joint project Kit Bays Dick Mathis US Kid still being kitted Campbells Custom Kits Don Ross new book Rubber Powen el Airplanes now available $12 postage Motorbooks Internation Box 1 Osceola WI 54020 1 book aimed beginner FF year expressing itself rain c high winds Free Flight compctitors wc times past showed up abundance meet truly plesurable experience Returning Free Flight wars afte decade Mike Hallu McFarland Bill Chenault Ton ntinuing 11 known making hiatus Larry Peadon Ken Phair Denver CO main stays Magnicent Mountain Mens Free Flight club also happens have won 88 US FAI FF team finals Model features aluminum-skinned surfaces 72 Model Aviation Free Flight Duration Larry Knhse Box 1137 LIberal KS 67901 HiLine Ltd has two new offerings Electric enthusiasts L MES-4 minimotor kit fprm models up 150 sq wing area R Imp can power models weighing up tq 10 oz Theres information both items column Typical Czech/Hungarian CO2 Duration mod el uses very light structure exposed tank cooling heavy-duty filler resistance damage Plane/photo Fritz Mueller d Mod 5 plus al PO 8-page lubber ec,am Bill Gieskieng Denver CO assembles testbed wing FAI Power FiC high thrustline folding wing design Foam wing Goldberg Skylark kit Symmetrical airfoil section mimics folded wing used plane competition hi_ 0Il us Another Gieskieng project high-thrustline low-wing Pee Wee 30 design Note carbon-fiber reinforcement wing spars adjustable thrustline rubberband shock-mounted wing panes elec tronic beeper just rear pylon among others Sixties Seventies Tom Peadon particular looked worse wear cajoled testing arm US Kid HLG designed published Flying Models magazine 1973 part composite project Kit Bays Dick Fast Richard Mathis Welcome back guys great see again Less Conventional wisdom suggests CO2 motors run best warm weather fact have seen modelers warming CO2 capsules under arms blowing warm breath ex posed CO2 tanks resorting other ploys -4 US Kid competitive Outdoor Hand-Launched Glider originally designed pub lished Tom Peadon 1973 Kit available Campbells Custom Kits Plan pre sented through courtesy Flying Models magazine warm tank CO2 prior charging motor modelers confusing higher pressure tank created warming CO2 increased volume gas tank what theyre actually seeking reality situation CO2 motors run best temperatures under 80 0F creased volume CO2 tarj can actually achieved cooling tank anWthe charger warming Fritz Mueller Col mbus GA has done some rather extensive experimentation CO2 pres sure psi relative gas volume ambient con ditions based upon practices Czechoslova kian Hungarian modelers able rou tinely achieve motor runs excess 90 seconds motor units essentially come Out box As accompanying photo shows tanks mounted completely exposed allow access cooling Some modelers cooling tanks using aerosol cooling sprays others us ing ice tanks accessible such Scale mod els tank first charged bled off Total Impulse Chart J Jet-X -Rubber Power 1 1 ELL 5 10 Time seconds -15 S C Figure Above Thrust vs time characteristics rubberpowered propeller Jet-X rocket motor Figure B R Results survey Outdoor FF Power models relates field category wing area engine displacement Source Max-Ouf newsletter back through filler valve keep mo tor feed line freezing up re charged its run Fritzs numbers show first charge puts about 15cc liquid CO2 5cc tank After bleeding charge off described above second charge puts 35cc liquid tank have conducted same type volumetric testing simply timing motor run spare Telco Turbo unit using suggested bleed-off procedure raises length motor run average 42 seconds average 74 seconds room temperature 72 0 F Fritz will publishing extensive article cooling CO2 units complete density isogram upcoming issue Model Builder magazine Watch youre CO2 Up up away Roger Wathens long vigi lance keeping last embers Jetex glowing newsletter P-s-s-s-t Off Sheet has Continued page 180 wiag Area vs Engine Displacement / / 500 / / / 400 / / / / /category category II dme 200/category III 100 o05101520 Engine Displacement cu 2530- 35 uu / / Soc March 1989 73 L FRONT VIEW 4 FIN MK 231 OR PFM 3200 Mooney 1/5th SCALE SEMI-KIT WAYNE SIEWERT AMA NATS 1st PLACE WINNER 1988 NATS EXPERT PORSCHE FI7TED MOONEY Instructions Scale Spinner WAYNE SIEWERT 2837 18th Ave So MPLS MN 55407 USA 612-722-7564 RADIO 4-6 CHANNEL ENGINE 90-1082 CYCLE 120-4 CYCLE SPAN 88 AREA 9SOSQIN WEIGHT 12-15# Argosy 1/Haught Continued page 177 well basic rigging pattern shown plan final challenge run lead-outs through maze Use sharpened piece music wire hand drill necessary holes lead-outs through nacelle lead-outs prototype extend few inches beyond nacelles makes less cluttered looking model lead-out guide clamps onto last set interplane struts added flying parts making guide shown plans two long plywood strips glued together space tween Notice line hole identical both strips slots leading holes different front strip slot exits bottom back strip exits top Clamp lead-out guide wing strut line hole about 1 above lower wing flying lines individ ually slipped between strips gap spacer provides bottom side Lead wire through slots hole front back Repeat steps three lines lot easier to explain works well Still happen less vain about biplanes might elect simply glue guide place have done Add engines check thrust gles like super-reliable Cox 049s outer engines because theyre easy start manage main en gine used K&B 40 RC has enough reserve fly Argosy its own Test run engines balance model youre set flying field Twin engines lot fun Triples better Care must taken during starting procedure recommend remove dummy engines before fueling three engines giving warm up run After topping off tanks start engines sequence outboard en gine inboard very care fully main engine Before takeoff re fill running 049s using long exten sion filler plastic tubing Argosy will take off three engines set low throttle main throttle increased touch-and-goes windy conditions things certain Flying piece avi ation history lot easier trying re construct imagination Having ap proached Argosy both angles can vouch Enjoy piece 1926 surely have responding advertisers mention read about ModelAviation FF Duration/Kruse Continued page 73 rewarded return Rocket power its new form Jet-X 50-Z motor new motor seems identical old Jetex 50 Hell-Cat except its nozzle orifice has enlarged ash screen inside has omitted So too has old asbestos/paper gasket ex changed appears rubber composite well new motor performs still mat ter conjecture circles Some modelers report difficulty ignition sequence de scribed product literature others re port no problems seem very pleased motors Available thrust has also largely matter conjecture point advertising litera ture claims powerful longer running Thanks again Fritz Mueller able chart average thrust duration new motor What being shown dot ted line Figure thrust characteristic 12-in loop i/o-in rubber wound 250 turns turning 6-in plastic prop solid line average thrust new Jet-X pellet burned new motor instructions supplied Jet-X warn new fuel pellets NOT used old Jetex motors RMcM Note unlike rubber thrust curve tends decrease almost straight linear fashion Jet-X thrust curve tends increase throughout flight maximum 10 grams thrust ap proximately 12 seconds flight before dropping off burnout own experience bears Out Fritzs analysis watched sheet balsa Jet-X design start High Performance Models presants ECL IPSE Designed Henry Piorun Former Canadian National Champion Canadian Team Member Designed Specifically FAI Pattern Flying Perform Equally Well Other AMA Classes Plug WIngs rglass Belly Pan Pro-Cut Moles WIng Joiner Tubes UltraDght Honeycomb Wlngoores fort 940460 OptIonal PlastIc Fiberglass Canopy Fiberglass Fuselage molded wing Joiner tube HIGH PERFORMANCE MODELS 9556 116 North Daita British Columbia 6Z4 Canada 604-588-0605 old timer perfectly proportioned modeung Curtlss Robin 049 Engines -Channei RIC 41 Wingspan Eiectrlc Power Optiansi Oh arOt Very few full scale sicrah aa ideally suited modal flight appealing old cuntiss Robin wan born spruce linen age beausfully proportroned rubber alactric glow engines Easy fun build tralnerllke performance Flyilne Models catalog SOS Pfrunn 7031 2730503 INE MODELS INC PO Box 2136 Fairfax Virginia 22031 usA 180 Model Aviation Fiberglass Cowlings Windshield Tip Lenses Plastic Elevator & Rudder Surfaces Rolled Plans Scale Documentation Full MORE iNFO BEND SABEJ Basic Kit $15000 Pra-Built Kit $35000 ladd $1500 Sil Send Check Money Order HI TECH GLASS EPPLER 214 134 WINGS TOTAL ENERGY SPAR ASSEMBUES NP CELL WING SHEETING SKINS Ill PERFORMANCE SAILPLANES offers high quaflty line epoxies glass cloth keviar laminates HP Cell wing sheeting skin vacuum bagging materIals honeycomb braided tubing fuselages wings Complete partial MIs Custom work Brochure send Si 00 SASE sample kIt $500 HI PERFORMANCE SAILPLANES 17902 NE 156th St Woodinvilie WA99072 206 487-1721 NEWSPACESAVING F Fits boa 2-112o7 3/So 9-1/8 FUEL CONTAINER Tough Rigid Polyethylene Includes tubing Fastarnera lock tubing through North Products PO Box 18419 cap sch postage Cleveland Heighta OH 44118 A Gal U EU Id Idli Ejur1 Sand SSAE cutalot sheet complete line gain tremendous amount altitude about 10 seconds its power pattern simply acceler ate out sight two-pellet charge Thanks Fritz interesting comparison Thats about size mentioned MMM Club Denver few paragraphs ago neglected mention fine newsletter Max-Our edited Rick Pangell debted Rick Bill Etherington plotting chart Figure B appeared recent sue Max-Our outgrowth several club conversations about appropriate size models use various engines chart provides handy reference select ing kit build given field size engine classification could also serve useful guide scratch-builder fledgling de signer An interesting feature chart point congruence Categories III Intersection 450 sq area 15 cu displacementa standard size FAI Power FlC ships New products such Some exciting news coming out cottage kitting industry iust time building season Campbells Custom Kits has two new George Perryman designs now production Gentleman Georges bent-winged bird Mulvihill called Super Maxer Speckled Bird available $2998 plus shipping smaller Fludy Coop Speckled Bird Coupe dHiver competi tion lists $2798 Both welcome additions array kits available serious Rubber fliers complete high-quality balsa tissue covering full-size plans plus quality weve learned expect Campbells Both available Campbells Custom Kits Box 5996 Lake Worth FL 33461-0181 Electric power enthusiasts have recently favored numerous new motor offerings last few months secmingly bit lighter bit powerful its predecessor Now HiLine Ltd company formed Tom Schmitt Don Srull come two new mo tors applicable sport Scale Duration ships new MES-4 mini-electric motor kit everything needed complete system suit able models 100-150 sq wing area all-up weight 3-5 oz kit has parts motor itself switch harness 100niAh three-cell battery prop charge plug all-up weight 53 grams larger motor HiLine 30-watt Imp kit comes ready hook up three NiCd cells least 150 mAh capacity motor draws approximately 10 amps can fitted aS x 3 6 x 3 prop models up 10 oz total weight system itself weighs 115 grams 275-mAb battery MES-4 kit goes $1895 plus 10% P&H Imp includes motor prop adapter mounting screws complete instruc lions very reasonable $1095 plus 10% P&H HiLine Ltd PO Box 341283 Bethesda MD 20817 0 Over 70 aviation publications ranging classic Zaic volumes through collections 50 years British aeromodeling available Hannans Runway constantly growing busi ness venture Joan Hannan Bills better half Begun 1985 heralded one-page flyer Hannans Runway has now grown ex tent having 36-page illustrated catalog listing plans rubber supplies cards rubber stamps fly ing accessories aforementioned publica tions As well featuring unusual collection DO YOU HAVE THE SHOEBOX BLUES 4 Evetyone gets have cure CMP field boxes Built machine cut 1/4 mahogany ply designed discriminating modelers like yourself give us call today Also dont miss FREE ACCESSORIES CATALOG kit IPKK-0101 $2595 ppda assem PKR-0201 $3995 ppd Leg kit available C17 Field boxes much Colorado Model Products Inc 555 Alter St #25 FOB 550 Broomfield CO 80020Dept MA 303465-5993 h 1989 181 Large Scala Miniatura AIrcraft Daslan Orawinga Harb iiaii IMAA 14W 1 llhscaloAaroncac3e5 wino27OOIpp 2 15 Scala sac-a Haildiva 00 wing aimIOOOOpo 329/10 scale seo5 Oauntlass 03 wing35OO/op 4 1/5 scale AO3o 4 Osuglas Okyraiiiar3OOO/pp 5 51a5 Wing Sag/nsa, Oae Plane2500/po Sand 200 far campieta nataing ta OP Systems inc. 1842 Tattanhail Hanatan TX 77006 i713195aee4o17131ee4-oaea FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL S[ON IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 #11 BIadesr~ 1I4O Pack $485 DelIvered 100 Pack $895 Berkeley TradIng Ca PO Box 26 Berkeley Springs WV 25411 1 ~ S WE BUILD YOUR HELl TEST YOUR HELl \\REPAIRYOURHELI 322North7thSt 6is ghton Pa 18235 WRITE OR CALL FOR INFORMA TION wonins aIscasr scALe scorn sesncanec PHone aAens PLANS 3 VISWS PHOTO-PACKS PLANS ENLARGING SAnE Enlnglaa neat 3m Pepinos Catalog *400 So page SCALE PLANS PHOTO SERVICE - 3209 Madsen 0aansbern N 27403 psora 119191 23g INs collaclI PIT-KIT Jr LiTRES /0//ECISION inSTRUMtNIS -nILLS METALS BOOKs COI/P.tTS C/ITSOG $200 UOOnoF item TDLS CD L n n Seina Road Sprogfonio O/0o 0550/ 5/ 13 3020562 Post paid to 48 enntigt.va AC4LtZS CODs add $300 MINI-ELECTRIC MINI POWER AT ITS BEST LIGHT WEIGHT K CHARGE T ANT START COST PROPSPRITEMSCHAERIES $1495VLI11$2495EFC 5005 dinengage Free-Includes HY-70 BProps Charge Cord andUrn cost Quick CharBattenes Rt4#es cluoed snaps onto motorConnector Accesspacers etc4 0 type hattenes $1795VL-111RFC-402 ler 71b leads wrth QuickSame VUiideal accuratelyny VL Flight Batty MotucTo subatibnAbove chargVL Field box 10 size modelsFUGHT BATTERIES Vt 102B-62 HY-70 2050 nA-Hr $ 995 $1395Includes HY-42 Motor P-i PW5-63 HY-70 3050 mA-Hr 5 02 fuel engineCharge Plug Cord AeasorB-33L HV-42 3x tOO mA-Hr 1295 B-34L I-f 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above $1295 plus $395 P&H Buy beginner youre trying encourage try Free Right FF Old-Timers/Baker Continued page 74 way look color wood clue its density flex wood hands can easily pick out hard pieces soft ones will result hav ing big pile sticks middle two little piles hope basic things help some obvious cant cover everything space have magazine letters let know what problem areas arc sure help Coming up suggested modifications Lanzo Stick SAM Society Antique Modelersed competition something about motor mounts removable ignition systems malcing folding props . what else need some helpful books available Some recent some out printbut may able find latter search dili gently new ones looks very good Rubber Powered Model Airplanes Don Ross (Editors note Larry Kruse also mentions oneand has photo coverin months FF Duration column RMcM just about Old-Timer models about Rub ber power general very up date terms modem practice such use torque meters winding tubes winding hooks such basic stuff rubber lube tying knots pert want fly Rubber need book expert should buy book give friends trying learn fine book much better 1982 book similar title written Robert Smith fortunately out print Smiths book disappointment can order copy Don Ross book di rectiy publisher $1695 cludes postage Send Motorbooks Interna tional PO Box 1 Osceola WI 54020 lot Model Aircraft Handbook SAVE YOUR FIELD SNUF-LER muffler low cost easy install lightweight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields Meets AMA muffler rule suggestions 3 10 decibels quieter stock muffler No power loss possible 300-600 RPM Increase Improves engine idle s better fuel economy Easily attached 25-1 08 stock mufflers Heat corrosion resistant Black E coat finish No special adspters required weighs 35 ozs Fits ASP BRAT ENVA FOX HP IRVINE K & B OS MAX ROYAL YS SUPER TIGRE mufflers available hobby shup ORDER DIRECT far immediate shipment Check MO. 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CODSEND 256 STAMP acceptedAdd$250fsrUPS$2OOforCODandf%ualeataa -FOR ADDtTIONAL INFO L Calif residentAND JTEC CATALOG William Winter spent much youth mem orizing 1942 edition now have b 1946 edi tion worth time spent shopping old book stores copy same author has new book print called World Model Airplanes published Scribners modern book overview current modeling activities well done chapter Free Flight techniques excel lent preceded chapters materials tools construction covering etc apply sorts models fine book beginner age try get copy Forties book really Old-Timers current book similar title World Model Aircraft Guy Williams published Chartwell Books Inc fine book too think Winters better two think should get interested Old-Timer gas-powered models copy Air Age Gas Models collection best Gas model articles Model Airplane News up until time first printing 1938 course long out printbut Hannans Run way has some copies much else interest Old-Timer enthusiast Send Runway two bucks its catalog Hannans Runway PO Box Escondido CA 92025 Some other out-of-print books worth looking Footes Model Engines Aerody namics Model Airplanes real trea sures copy Model Motor Manual Louis Garami Howard McEntee So check lo cal used-book shop look old books li brary throwing out look books well engines go garage sales flea 182 Model Aviation Efeady-no-nIyI 8396 ea plus 1 uu per oroer Florlo Flyer Corp 1 837 Jolsnaonburg Rd St Marys PA 15857 I