N ALL KIDS love light fuses Fourth July used favorite holiday Jetex mo tors came along 1947 us fuse-lighters attached new toys models vary ing degrees success Jetex event Nats always spectacular about models refusing light about crashing high jet-powered speed about flying out sight first really good jet flight ever saw Hal Swansons Opel Hatry model launched rail Flighsmasters Annual back early Sixties bigger engines Scorpion flew exactly would imag ine real would about good Scale subject can think form power others requiring thin metal tube down center fuselage keep model burning up engine up near CG Still some crafty modelers out may think up ways utilizing new Jet-X 50-Z smallest-size motor old line other Scale applications Maybe aluminum drink-can augmenter tubes can concocted permit en closing motors get hot thats sure Whereas old fuel having guanidine ni trate base gave steady burn hard light required disposable screen between fuel jet orifice new fuel burns short fits half full secondsort pulse screen gone though have no prob lems lighting time contains potas sium dichromate stuff makes 62 Model Aviation Free Flight Sport & Scale Bill Warner Bob Currys rubber-powered 8-25 has contra-rotating props lots fancy vacu-forming Its still trimming stages flight Seen 86 Flightmasters Annual Los Angeles CA Andre Merta launches rubber-powered Miles Magister contest Czechoslovakia Rubber Scale very much alive well contlnentl Photo Lubomir Koutny Lubomir Koutnys new 1/20-scale SM92 rubber-powered ship walked off its first contest win Czechoslovakia year Span 930mm weight 100gm flies over 70 secondsl Photo Koutny Col Hurst Bowers curator AMA Museum Renard R17 Electric-powered craft uses VL unit spans 30 blown up Walt Mooney Peanut plans Schmitt photo July 4th pellet snakes work two-pellet load maximum can pack motor case will power 22-in-span model about 20 sec maximum thrust lots safety precautions come new engines like putting aluminum foil over exposed parts model eating pellets wearing full face shield like Actually motors pretty safe old ones biggest danger coming off its mount event crash under power taking off parts unknown Theyre devilish things find Safety-wiring something solid model usually cured club has instituted jet event though wise enough limit Jet-X allowing contes tants put props jet models least year instructions come new Jet-X motor fairly clear would recommend ex treme care seating disposable silicone rub ber washer shut engine up fuel couple tries rotate seated cap Two different models same plane two workbenches Stin son Reliant L author Warners Chet Kowaliks RWarren Ml built Bill Winters design June 1936 issue Flying Aces first reader spot 10 dIfferences between two workbenches will get his/her name written blackboard may save blowing hot exhaust out side have couple times Another trick have just bit extra coated wire-core fuse inside assembling loaded engine give little spring effect will shove part inserted hole fuel pellet solidly against what supposed ignite Also dont count jet blast blowing RIGHT wire used fuse out jet orifice Wetting thumb first finger can snatch out hole soon engine starts hiss real exhaust blast takes about five seconds get going fully Jet-X made England available US Peck Polymers PO Box 2498 La Continued page 1S6 WROIVG I-I/Gil 4VGLEi-fIG/I AT\H&BAIIVGLE 71T LOWOW4VGLE WI I1VGLE TI-it/B LOOK/NC FROM 7/P TOWQRD HUB FAR BLWE NOT SHOWN Paul Mcllrath shows unsuspecting modeler can get caught trap making his/her own prop blades using bottle cotttage cheese container method Can tell blade right got messed up answers column somewhere L7ri4t said almost hobby would benefit contact aeromodeling Dick Allens bonsai Gee Bee certainly positive proof Well January 1988 63 liii IS V Jetex back Oops Its named Jet-X now 50-Z engine may look like old have few Improvements Peck-Polymers has Sorry cant use new-formula fuel pellets old units details column Jane chlosberg Scottsdale AZ made lovely Rearwin Speedster Golden Age Reproductions kit Would believe its third model shes built Photo sent us Bob Schlosberg sand sand get humps bumps Try Easy San4IerTM See Difference Made select wood extremely light sander hold full oheet sand paper Flat sanded accurate sanding surface Large flat surfaces sanding area LO 50 $095 ea get shaky whenDo hate field isnt longto install enoughhinges Try Easy BrakenM See DifferenceTry Easy HingesnM See Difference single slot few drops C/A glue its done No gosling pinning hinge pins worry about Incredibly strong virtually indestructible Extremely easy ts install lard find spring steel fiber washers Braking action remains constant during rapeated useLO 10024 hiioeS $205 00 0 Three sizes 1/8 5/32 316LO 140 141 142 Oorea EAY5RNDER 1U2EASY BRAKE izQ Box 1743 Marcos CA 92069 ing people community what youre seeking sure image re flects same kind professionalism Present positive image out understand hobby view us skepticism lack trust help overcome prejudice sure dress appropriately speak po litely making contacts community Club members acting con tact people should dress properly occasion jacket tie dealing business people politicians casual still neat attire visiting farmers Advise members also polite speak slowly clear can about what club representatives want Despite best efforts reflect posi tive image club hobby youll still probably meet resistance times efforts help locate field experi enced some hard realities prejudice against activity building flying model airplanes know its tough deal have just write off ex periences keep moving club name also projects image very interesting article Jeff Troy AMA assistant director public relations AMA National Newsletter several months ago addressed issue club names images As result made few name changes stationery suit different situations Since name Aerobugs has potentially negative connotation adopted International Miniature Aircraft Association Chapter 168 alternative out-of-state letters created special stationery plays down name Levittown muns mizing reference specific geograph ic area clubs history influences its image too whether good bad relations prior site-owners positive might ask write letters introduction recommendation could very helpful might consider using attorney Pennsylvania land use statute granting owners immunity liability allow others use land recrea tional purposes no charge As mentioned earlier obtained information has far-reaching value club future field search efforts through attorney dealt proposed industrial flying site Although site fell through re tained companys lawyer complete re search statute Once club has found new field youll investing good deal effort preparing itand keeping Use same professional approach dealing new landlord neighbors multitude situations will develop Again AMA booklet has much valuable information topic keeping site never said searching new fly ing site isffin youll have some interest ing experiences meet new people learn some new things about life during process satisfactionand results well worth effort Most will have moved ahead towards com mon goal Keep em Flying FF Scale/Warner Continued page 63 Mesa CA 92044 engine $1095 itself $2249 pellets wick gaskets etc Add $2 postage Bad news holding old Jetex engines cant get fuel new fuel will work say old engine final caution have Jetex experience careful drying pellets old pellets hygroscopic soaked up mois ture left around very long would light anything Guys used put cookie sheet oven leave long time low heat Well flash point new ones gas-generating 2000 Fahrenheit would seem make unwise solution Maybe could use oven made cardboard box low-wattage light bulb inside would better out yardjust case did go off Two good nitrate dope sources have come attention quest find some shrinks up like dope should hesitate use word taut ening offends semantic sensibilities Ric Dittman up Washington indicates Randolph clear nitrate user-friendly hes tried Its available Wag-Aero Box 181 1216 N-Road Lyons WI 53148 tel 414 763-9586 quart goes bit over five bucks plus postage based zip code weight Ric used non-t nitrate dope second-place-at-the-Nats T-Crafts silk have sag bag sitting hot sun has since retightened second source dope Im sounding like pusher today suggested Art Watkins Mt View CA Hes using Aero-Dyne Allen Heinrich 3154 Falcon Pomona CA 91767 tel 714 593-5789 goes about $1150 gallon Allen also sells good diesel fuel $11 quart Thanks guys Mini-Electrics beginning boom knew already now probably have box full toy electric motors gears could find have scouting over small batteries run em Tom Schmitt Rockville MD sent along catalog R D Electronics 1202H Pine Island Rd Cape Coral FL 33909 tel 813 772-1441 have Super Sub C 12-volt 2-Ah cells 99 cents 1/n-AA three-packs developing 36-volt 100 mAh $250/stick also have little Kodak disc-camera minimotors carbon brushes 10 $250 rewound end good brushes put toy car motor have very nice cheap miniature power plant Gear 31 71 business R D has minimum order $10 might want send catalog see theres anything else can use Anyone family smelling bad lately might suggest try some Dry Idea antiperspirant Because cap product perfect cowling radial rotary engine thats Maybe could write suggest put Out anti-BO stuff differ ent scales Ernie Wrisley Santee CA sends along cowl idea well endorsement Duro super-glue remover says cheap works well him Thanks Ernie latest rage fillers Actually its around some time lots just havent discovered yet Red Devil DAP just about everyone else have what touted lightweight one-step spackling paste can tell fact plastic rather metal container white smells funny light sands like balsa cleans up water Its great fillets blends sloppy builders like can find hardware paint stores model shops time time Thanks Walt Mooney Paul Mdl rath Paul suggests mixing drop colored ink 156 Model Aviation FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid us via ups Cal add 6tax SMALL BOX 1/4 lb rubber $450 size Orders up $1500 1/4 lb rubber mdse add $150 ups Ovar $15 add 10% a\1 SEND $1 FAl Model Supply FOR LOG tPOBOX3967TorranceCA 90510 CROCKET HOOKS NOW MADE BY FAI match material color surround ing area Maybe Dr Manns dyes food color ing would work Adding little white glue filler says Paul makes stickier harder sand Its main ingredient believe glass mi croballoons would suggest inhale too much sanding dust have hearing good things month about people getting wives involved modeling Shelly Dittman new hubby Rics hobby Jane Schlosberg has now done third model recent months like hear people sharing good thing Unfortu nately some women get good makes us guys look bad Like Addie Naccaratos huge float biplane just finished Lock heed Museum Hey Lympne fans Richard Riding editor Aeroplane Monthly has new book out called Ultralights Early British Classics incor porates lot material has already ap peared magazine series also has great deal interesting new stuff photo section early engines super 26 selected engines ABC 398cc Walter Micron Nifty planes like Watkinson Dingbat Perman Parasol Carden-Baynes Scud III Angus Aquila Comper autogiro Short Cockle etc grace its pages over 400 photographs scale draw ings data tables covering Golden Age British lightplane history during years tween two world wars book compel ling modelers available 1995 British pounds hardback ask bank international money order amount theyll charge dollars available Patrick Stephens Ltd Denington Estate Wel lingborough Northants NN8 2QD England Highly recommended Understanding propellers can difficult kids classes school often things like carve two opposite-direction blades same blank put camber face blade rear other things like Pennyplane props go upside-down blades get pitch set gives full drag feathered blade trying turn other set zero pitch Adults sometimes quite understand prop works either current fad molding blades side bottle cutting cottage cheese container points out certain misunderstanding spinning propellers tips move through air faster does its hubs Thats way dis tance around circle works Props get thrust way blades angled forward pitch like pitch thread Brits call airserews tip moving faster needs lower angle pitch gets its thrust augmented extra speed turning root end blade near hub just puttering around needs help can get come close what tips develop ing therefore needs much higher angle spect ready-made plastic prop carefully will see Now cut blade cylinder like cottage cheese container normally tilt blade 150 left vertical cylinder 15 0 left molding balsa laminates bot tle gives blade rotated normal fashion will have pitch hub less tip number modelers should know better have found out make blades slanted right guess what happens make perfectly almost normal-looking prop guessed pitch high need low vice-versa will fly model al right performance will suffer Thanks Paul Mellrath Keep blades angled right Pea nuts out snowdrifts Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Duration/Wainfan Continued page 65 problem comes time bring down no stab pop up dethermalize model have tried series gadgets bring down some work some dont Don Ross reports pop-up drag paddle near nose version Cyrano II tailless P-30 December 1986 MAFull-Size Plan No 536 works reasonably well have tried method seems de pendent CG position model CG little too far forward model stable enough drag paddle has very little effect CG further aft drag paddle will pro duce stall bring model down Another method works reasonably well shown photo Don Jenkins Electric wing large spoiler hinged its trailing edge placed well aft wing will often trick use spoilers DT flying wing careful place spoiler should never hinge point forward 50% chord line Forward-mounted spoilers can cause large pitch-down moments can lead serious PRECISION MODEL PRODUCTS Made USA BARSTOCK ALUMINUM PINNE TT-2 75B TT-276-B TT-300-B fl30 1-B RETAIL APPROX SIZE PRICE WT 1-3/4 $1295 0Z 1395 100 OZ 1495 OZ 1695 145 05 1695 18805 1895 16605 1995 2150Z 2195200 05 2395 OZ 2595 OZ 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add $3 00 Per Spinner PROP NUT ADAPTORS PART NOSIZE TT-140-A1/4-28 TT-610-A6x 1 0mm ET-710-A7s1Omm TT-516-A .5/16-24 TT-810-A .8s 10mm . TT-825-A .8 x 125mm TT-375-A .3/8-24 TT-125-A 125mm RETAIL APPROX PRICE WT $395 . 061 05 395 . 063 OZ 395 . 082 05 395 . 076 OZ 395 . 0760Z 395 . 075 05 495 . 11705 495 . 1150Z 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 536 SOUTH HOUSTON TEXAS 77587 713 943-1867 2-3/4 2-3/4/FAll 3 3/FAIl January 1988 157 THE DIFFERENT FOAM MODEL Lowest Cost Modeling COUGAR 1 Send $100 PEtH latest fine-grain sheet foam developments foam samples FREE foam sources Hard Shell finishes now available Dozens easy build foam airplane plans Peanuts R/C FOAM SCALE MODELS Box 662MA St Croix Falls WI 54024 PART NO TT-175-B TT200-B 2 TT-225-B 4 TT-226-B2-1/4 IFAII TT-250-B 2-1/2 TT-251-82-1/2/FAIl
Edition: Model Aviation - 1988/01
Page Numbers: 62, 63, 156, 157
N ALL KIDS love light fuses Fourth July used favorite holiday Jetex mo tors came along 1947 us fuse-lighters attached new toys models vary ing degrees success Jetex event Nats always spectacular about models refusing light about crashing high jet-powered speed about flying out sight first really good jet flight ever saw Hal Swansons Opel Hatry model launched rail Flighsmasters Annual back early Sixties bigger engines Scorpion flew exactly would imag ine real would about good Scale subject can think form power others requiring thin metal tube down center fuselage keep model burning up engine up near CG Still some crafty modelers out may think up ways utilizing new Jet-X 50-Z smallest-size motor old line other Scale applications Maybe aluminum drink-can augmenter tubes can concocted permit en closing motors get hot thats sure Whereas old fuel having guanidine ni trate base gave steady burn hard light required disposable screen between fuel jet orifice new fuel burns short fits half full secondsort pulse screen gone though have no prob lems lighting time contains potas sium dichromate stuff makes 62 Model Aviation Free Flight Sport & Scale Bill Warner Bob Currys rubber-powered 8-25 has contra-rotating props lots fancy vacu-forming Its still trimming stages flight Seen 86 Flightmasters Annual Los Angeles CA Andre Merta launches rubber-powered Miles Magister contest Czechoslovakia Rubber Scale very much alive well contlnentl Photo Lubomir Koutny Lubomir Koutnys new 1/20-scale SM92 rubber-powered ship walked off its first contest win Czechoslovakia year Span 930mm weight 100gm flies over 70 secondsl Photo Koutny Col Hurst Bowers curator AMA Museum Renard R17 Electric-powered craft uses VL unit spans 30 blown up Walt Mooney Peanut plans Schmitt photo July 4th pellet snakes work two-pellet load maximum can pack motor case will power 22-in-span model about 20 sec maximum thrust lots safety precautions come new engines like putting aluminum foil over exposed parts model eating pellets wearing full face shield like Actually motors pretty safe old ones biggest danger coming off its mount event crash under power taking off parts unknown Theyre devilish things find Safety-wiring something solid model usually cured club has instituted jet event though wise enough limit Jet-X allowing contes tants put props jet models least year instructions come new Jet-X motor fairly clear would recommend ex treme care seating disposable silicone rub ber washer shut engine up fuel couple tries rotate seated cap Two different models same plane two workbenches Stin son Reliant L author Warners Chet Kowaliks RWarren Ml built Bill Winters design June 1936 issue Flying Aces first reader spot 10 dIfferences between two workbenches will get his/her name written blackboard may save blowing hot exhaust out side have couple times Another trick have just bit extra coated wire-core fuse inside assembling loaded engine give little spring effect will shove part inserted hole fuel pellet solidly against what supposed ignite Also dont count jet blast blowing RIGHT wire used fuse out jet orifice Wetting thumb first finger can snatch out hole soon engine starts hiss real exhaust blast takes about five seconds get going fully Jet-X made England available US Peck Polymers PO Box 2498 La Continued page 1S6 WROIVG I-I/Gil 4VGLEi-fIG/I AT\H&BAIIVGLE 71T LOWOW4VGLE WI I1VGLE TI-it/B LOOK/NC FROM 7/P TOWQRD HUB FAR BLWE NOT SHOWN Paul Mcllrath shows unsuspecting modeler can get caught trap making his/her own prop blades using bottle cotttage cheese container method Can tell blade right got messed up answers column somewhere L7ri4t said almost hobby would benefit contact aeromodeling Dick Allens bonsai Gee Bee certainly positive proof Well January 1988 63 liii IS V Jetex back Oops Its named Jet-X now 50-Z engine may look like old have few Improvements Peck-Polymers has Sorry cant use new-formula fuel pellets old units details column Jane chlosberg Scottsdale AZ made lovely Rearwin Speedster Golden Age Reproductions kit Would believe its third model shes built Photo sent us Bob Schlosberg sand sand get humps bumps Try Easy San4IerTM See Difference Made select wood extremely light sander hold full oheet sand paper Flat sanded accurate sanding surface Large flat surfaces sanding area LO 50 $095 ea get shaky whenDo hate field isnt longto install enoughhinges Try Easy BrakenM See DifferenceTry Easy HingesnM See Difference single slot few drops C/A glue its done No gosling pinning hinge pins worry about Incredibly strong virtually indestructible Extremely easy ts install lard find spring steel fiber washers Braking action remains constant during rapeated useLO 10024 hiioeS $205 00 0 Three sizes 1/8 5/32 316LO 140 141 142 Oorea EAY5RNDER 1U2EASY BRAKE izQ Box 1743 Marcos CA 92069 ing people community what youre seeking sure image re flects same kind professionalism Present positive image out understand hobby view us skepticism lack trust help overcome prejudice sure dress appropriately speak po litely making contacts community Club members acting con tact people should dress properly occasion jacket tie dealing business people politicians casual still neat attire visiting farmers Advise members also polite speak slowly clear can about what club representatives want Despite best efforts reflect posi tive image club hobby youll still probably meet resistance times efforts help locate field experi enced some hard realities prejudice against activity building flying model airplanes know its tough deal have just write off ex periences keep moving club name also projects image very interesting article Jeff Troy AMA assistant director public relations AMA National Newsletter several months ago addressed issue club names images As result made few name changes stationery suit different situations Since name Aerobugs has potentially negative connotation adopted International Miniature Aircraft Association Chapter 168 alternative out-of-state letters created special stationery plays down name Levittown muns mizing reference specific geograph ic area clubs history influences its image too whether good bad relations prior site-owners positive might ask write letters introduction recommendation could very helpful might consider using attorney Pennsylvania land use statute granting owners immunity liability allow others use land recrea tional purposes no charge As mentioned earlier obtained information has far-reaching value club future field search efforts through attorney dealt proposed industrial flying site Although site fell through re tained companys lawyer complete re search statute Once club has found new field youll investing good deal effort preparing itand keeping Use same professional approach dealing new landlord neighbors multitude situations will develop Again AMA booklet has much valuable information topic keeping site never said searching new fly ing site isffin youll have some interest ing experiences meet new people learn some new things about life during process satisfactionand results well worth effort Most will have moved ahead towards com mon goal Keep em Flying FF Scale/Warner Continued page 63 Mesa CA 92044 engine $1095 itself $2249 pellets wick gaskets etc Add $2 postage Bad news holding old Jetex engines cant get fuel new fuel will work say old engine final caution have Jetex experience careful drying pellets old pellets hygroscopic soaked up mois ture left around very long would light anything Guys used put cookie sheet oven leave long time low heat Well flash point new ones gas-generating 2000 Fahrenheit would seem make unwise solution Maybe could use oven made cardboard box low-wattage light bulb inside would better out yardjust case did go off Two good nitrate dope sources have come attention quest find some shrinks up like dope should hesitate use word taut ening offends semantic sensibilities Ric Dittman up Washington indicates Randolph clear nitrate user-friendly hes tried Its available Wag-Aero Box 181 1216 N-Road Lyons WI 53148 tel 414 763-9586 quart goes bit over five bucks plus postage based zip code weight Ric used non-t nitrate dope second-place-at-the-Nats T-Crafts silk have sag bag sitting hot sun has since retightened second source dope Im sounding like pusher today suggested Art Watkins Mt View CA Hes using Aero-Dyne Allen Heinrich 3154 Falcon Pomona CA 91767 tel 714 593-5789 goes about $1150 gallon Allen also sells good diesel fuel $11 quart Thanks guys Mini-Electrics beginning boom knew already now probably have box full toy electric motors gears could find have scouting over small batteries run em Tom Schmitt Rockville MD sent along catalog R D Electronics 1202H Pine Island Rd Cape Coral FL 33909 tel 813 772-1441 have Super Sub C 12-volt 2-Ah cells 99 cents 1/n-AA three-packs developing 36-volt 100 mAh $250/stick also have little Kodak disc-camera minimotors carbon brushes 10 $250 rewound end good brushes put toy car motor have very nice cheap miniature power plant Gear 31 71 business R D has minimum order $10 might want send catalog see theres anything else can use Anyone family smelling bad lately might suggest try some Dry Idea antiperspirant Because cap product perfect cowling radial rotary engine thats Maybe could write suggest put Out anti-BO stuff differ ent scales Ernie Wrisley Santee CA sends along cowl idea well endorsement Duro super-glue remover says cheap works well him Thanks Ernie latest rage fillers Actually its around some time lots just havent discovered yet Red Devil DAP just about everyone else have what touted lightweight one-step spackling paste can tell fact plastic rather metal container white smells funny light sands like balsa cleans up water Its great fillets blends sloppy builders like can find hardware paint stores model shops time time Thanks Walt Mooney Paul Mdl rath Paul suggests mixing drop colored ink 156 Model Aviation FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid us via ups Cal add 6tax SMALL BOX 1/4 lb rubber $450 size Orders up $1500 1/4 lb rubber mdse add $150 ups Ovar $15 add 10% a\1 SEND $1 FAl Model Supply FOR LOG tPOBOX3967TorranceCA 90510 CROCKET HOOKS NOW MADE BY FAI match material color surround ing area Maybe Dr Manns dyes food color ing would work Adding little white glue filler says Paul makes stickier harder sand Its main ingredient believe glass mi croballoons would suggest inhale too much sanding dust have hearing good things month about people getting wives involved modeling Shelly Dittman new hubby Rics hobby Jane Schlosberg has now done third model recent months like hear people sharing good thing Unfortu nately some women get good makes us guys look bad Like Addie Naccaratos huge float biplane just finished Lock heed Museum Hey Lympne fans Richard Riding editor Aeroplane Monthly has new book out called Ultralights Early British Classics incor porates lot material has already ap peared magazine series also has great deal interesting new stuff photo section early engines super 26 selected engines ABC 398cc Walter Micron Nifty planes like Watkinson Dingbat Perman Parasol Carden-Baynes Scud III Angus Aquila Comper autogiro Short Cockle etc grace its pages over 400 photographs scale draw ings data tables covering Golden Age British lightplane history during years tween two world wars book compel ling modelers available 1995 British pounds hardback ask bank international money order amount theyll charge dollars available Patrick Stephens Ltd Denington Estate Wel lingborough Northants NN8 2QD England Highly recommended Understanding propellers can difficult kids classes school often things like carve two opposite-direction blades same blank put camber face blade rear other things like Pennyplane props go upside-down blades get pitch set gives full drag feathered blade trying turn other set zero pitch Adults sometimes quite understand prop works either current fad molding blades side bottle cutting cottage cheese container points out certain misunderstanding spinning propellers tips move through air faster does its hubs Thats way dis tance around circle works Props get thrust way blades angled forward pitch like pitch thread Brits call airserews tip moving faster needs lower angle pitch gets its thrust augmented extra speed turning root end blade near hub just puttering around needs help can get come close what tips develop ing therefore needs much higher angle spect ready-made plastic prop carefully will see Now cut blade cylinder like cottage cheese container normally tilt blade 150 left vertical cylinder 15 0 left molding balsa laminates bot tle gives blade rotated normal fashion will have pitch hub less tip number modelers should know better have found out make blades slanted right guess what happens make perfectly almost normal-looking prop guessed pitch high need low vice-versa will fly model al right performance will suffer Thanks Paul Mellrath Keep blades angled right Pea nuts out snowdrifts Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Duration/Wainfan Continued page 65 problem comes time bring down no stab pop up dethermalize model have tried series gadgets bring down some work some dont Don Ross reports pop-up drag paddle near nose version Cyrano II tailless P-30 December 1986 MAFull-Size Plan No 536 works reasonably well have tried method seems de pendent CG position model CG little too far forward model stable enough drag paddle has very little effect CG further aft drag paddle will pro duce stall bring model down Another method works reasonably well shown photo Don Jenkins Electric wing large spoiler hinged its trailing edge placed well aft wing will often trick use spoilers DT flying wing careful place spoiler should never hinge point forward 50% chord line Forward-mounted spoilers can cause large pitch-down moments can lead serious PRECISION MODEL PRODUCTS Made USA BARSTOCK ALUMINUM PINNE TT-2 75B TT-276-B TT-300-B fl30 1-B RETAIL APPROX SIZE PRICE WT 1-3/4 $1295 0Z 1395 100 OZ 1495 OZ 1695 145 05 1695 18805 1895 16605 1995 2150Z 2195200 05 2395 OZ 2595 OZ 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add $3 00 Per Spinner PROP NUT ADAPTORS PART NOSIZE TT-140-A1/4-28 TT-610-A6x 1 0mm ET-710-A7s1Omm TT-516-A .5/16-24 TT-810-A .8s 10mm . TT-825-A .8 x 125mm TT-375-A .3/8-24 TT-125-A 125mm RETAIL APPROX PRICE WT $395 . 061 05 395 . 063 OZ 395 . 082 05 395 . 076 OZ 395 . 0760Z 395 . 075 05 495 . 11705 495 . 1150Z 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 536 SOUTH HOUSTON TEXAS 77587 713 943-1867 2-3/4 2-3/4/FAll 3 3/FAIl January 1988 157 THE DIFFERENT FOAM MODEL Lowest Cost Modeling COUGAR 1 Send $100 PEtH latest fine-grain sheet foam developments foam samples FREE foam sources Hard Shell finishes now available Dozens easy build foam airplane plans Peanuts R/C FOAM SCALE MODELS Box 662MA St Croix Falls WI 54024 PART NO TT-175-B TT200-B 2 TT-225-B 4 TT-226-B2-1/4 IFAII TT-250-B 2-1/2 TT-251-82-1/2/FAIl
Edition: Model Aviation - 1988/01
Page Numbers: 62, 63, 156, 157
N ALL KIDS love light fuses Fourth July used favorite holiday Jetex mo tors came along 1947 us fuse-lighters attached new toys models vary ing degrees success Jetex event Nats always spectacular about models refusing light about crashing high jet-powered speed about flying out sight first really good jet flight ever saw Hal Swansons Opel Hatry model launched rail Flighsmasters Annual back early Sixties bigger engines Scorpion flew exactly would imag ine real would about good Scale subject can think form power others requiring thin metal tube down center fuselage keep model burning up engine up near CG Still some crafty modelers out may think up ways utilizing new Jet-X 50-Z smallest-size motor old line other Scale applications Maybe aluminum drink-can augmenter tubes can concocted permit en closing motors get hot thats sure Whereas old fuel having guanidine ni trate base gave steady burn hard light required disposable screen between fuel jet orifice new fuel burns short fits half full secondsort pulse screen gone though have no prob lems lighting time contains potas sium dichromate stuff makes 62 Model Aviation Free Flight Sport & Scale Bill Warner Bob Currys rubber-powered 8-25 has contra-rotating props lots fancy vacu-forming Its still trimming stages flight Seen 86 Flightmasters Annual Los Angeles CA Andre Merta launches rubber-powered Miles Magister contest Czechoslovakia Rubber Scale very much alive well contlnentl Photo Lubomir Koutny Lubomir Koutnys new 1/20-scale SM92 rubber-powered ship walked off its first contest win Czechoslovakia year Span 930mm weight 100gm flies over 70 secondsl Photo Koutny Col Hurst Bowers curator AMA Museum Renard R17 Electric-powered craft uses VL unit spans 30 blown up Walt Mooney Peanut plans Schmitt photo July 4th pellet snakes work two-pellet load maximum can pack motor case will power 22-in-span model about 20 sec maximum thrust lots safety precautions come new engines like putting aluminum foil over exposed parts model eating pellets wearing full face shield like Actually motors pretty safe old ones biggest danger coming off its mount event crash under power taking off parts unknown Theyre devilish things find Safety-wiring something solid model usually cured club has instituted jet event though wise enough limit Jet-X allowing contes tants put props jet models least year instructions come new Jet-X motor fairly clear would recommend ex treme care seating disposable silicone rub ber washer shut engine up fuel couple tries rotate seated cap Two different models same plane two workbenches Stin son Reliant L author Warners Chet Kowaliks RWarren Ml built Bill Winters design June 1936 issue Flying Aces first reader spot 10 dIfferences between two workbenches will get his/her name written blackboard may save blowing hot exhaust out side have couple times Another trick have just bit extra coated wire-core fuse inside assembling loaded engine give little spring effect will shove part inserted hole fuel pellet solidly against what supposed ignite Also dont count jet blast blowing RIGHT wire used fuse out jet orifice Wetting thumb first finger can snatch out hole soon engine starts hiss real exhaust blast takes about five seconds get going fully Jet-X made England available US Peck Polymers PO Box 2498 La Continued page 1S6 WROIVG I-I/Gil 4VGLEi-fIG/I AT\H&BAIIVGLE 71T LOWOW4VGLE WI I1VGLE TI-it/B LOOK/NC FROM 7/P TOWQRD HUB FAR BLWE NOT SHOWN Paul Mcllrath shows unsuspecting modeler can get caught trap making his/her own prop blades using bottle cotttage cheese container method Can tell blade right got messed up answers column somewhere L7ri4t said almost hobby would benefit contact aeromodeling Dick Allens bonsai Gee Bee certainly positive proof Well January 1988 63 liii IS V Jetex back Oops Its named Jet-X now 50-Z engine may look like old have few Improvements Peck-Polymers has Sorry cant use new-formula fuel pellets old units details column Jane chlosberg Scottsdale AZ made lovely Rearwin Speedster Golden Age Reproductions kit Would believe its third model shes built Photo sent us Bob Schlosberg sand sand get humps bumps Try Easy San4IerTM See Difference Made select wood extremely light sander hold full oheet sand paper Flat sanded accurate sanding surface Large flat surfaces sanding area LO 50 $095 ea get shaky whenDo hate field isnt longto install enoughhinges Try Easy BrakenM See DifferenceTry Easy HingesnM See Difference single slot few drops C/A glue its done No gosling pinning hinge pins worry about Incredibly strong virtually indestructible Extremely easy ts install lard find spring steel fiber washers Braking action remains constant during rapeated useLO 10024 hiioeS $205 00 0 Three sizes 1/8 5/32 316LO 140 141 142 Oorea EAY5RNDER 1U2EASY BRAKE izQ Box 1743 Marcos CA 92069 ing people community what youre seeking sure image re flects same kind professionalism Present positive image out understand hobby view us skepticism lack trust help overcome prejudice sure dress appropriately speak po litely making contacts community Club members acting con tact people should dress properly occasion jacket tie dealing business people politicians casual still neat attire visiting farmers Advise members also polite speak slowly clear can about what club representatives want Despite best efforts reflect posi tive image club hobby youll still probably meet resistance times efforts help locate field experi enced some hard realities prejudice against activity building flying model airplanes know its tough deal have just write off ex periences keep moving club name also projects image very interesting article Jeff Troy AMA assistant director public relations AMA National Newsletter several months ago addressed issue club names images As result made few name changes stationery suit different situations Since name Aerobugs has potentially negative connotation adopted International Miniature Aircraft Association Chapter 168 alternative out-of-state letters created special stationery plays down name Levittown muns mizing reference specific geograph ic area clubs history influences its image too whether good bad relations prior site-owners positive might ask write letters introduction recommendation could very helpful might consider using attorney Pennsylvania land use statute granting owners immunity liability allow others use land recrea tional purposes no charge As mentioned earlier obtained information has far-reaching value club future field search efforts through attorney dealt proposed industrial flying site Although site fell through re tained companys lawyer complete re search statute Once club has found new field youll investing good deal effort preparing itand keeping Use same professional approach dealing new landlord neighbors multitude situations will develop Again AMA booklet has much valuable information topic keeping site never said searching new fly ing site isffin youll have some interest ing experiences meet new people learn some new things about life during process satisfactionand results well worth effort Most will have moved ahead towards com mon goal Keep em Flying FF Scale/Warner Continued page 63 Mesa CA 92044 engine $1095 itself $2249 pellets wick gaskets etc Add $2 postage Bad news holding old Jetex engines cant get fuel new fuel will work say old engine final caution have Jetex experience careful drying pellets old pellets hygroscopic soaked up mois ture left around very long would light anything Guys used put cookie sheet oven leave long time low heat Well flash point new ones gas-generating 2000 Fahrenheit would seem make unwise solution Maybe could use oven made cardboard box low-wattage light bulb inside would better out yardjust case did go off Two good nitrate dope sources have come attention quest find some shrinks up like dope should hesitate use word taut ening offends semantic sensibilities Ric Dittman up Washington indicates Randolph clear nitrate user-friendly hes tried Its available Wag-Aero Box 181 1216 N-Road Lyons WI 53148 tel 414 763-9586 quart goes bit over five bucks plus postage based zip code weight Ric used non-t nitrate dope second-place-at-the-Nats T-Crafts silk have sag bag sitting hot sun has since retightened second source dope Im sounding like pusher today suggested Art Watkins Mt View CA Hes using Aero-Dyne Allen Heinrich 3154 Falcon Pomona CA 91767 tel 714 593-5789 goes about $1150 gallon Allen also sells good diesel fuel $11 quart Thanks guys Mini-Electrics beginning boom knew already now probably have box full toy electric motors gears could find have scouting over small batteries run em Tom Schmitt Rockville MD sent along catalog R D Electronics 1202H Pine Island Rd Cape Coral FL 33909 tel 813 772-1441 have Super Sub C 12-volt 2-Ah cells 99 cents 1/n-AA three-packs developing 36-volt 100 mAh $250/stick also have little Kodak disc-camera minimotors carbon brushes 10 $250 rewound end good brushes put toy car motor have very nice cheap miniature power plant Gear 31 71 business R D has minimum order $10 might want send catalog see theres anything else can use Anyone family smelling bad lately might suggest try some Dry Idea antiperspirant Because cap product perfect cowling radial rotary engine thats Maybe could write suggest put Out anti-BO stuff differ ent scales Ernie Wrisley Santee CA sends along cowl idea well endorsement Duro super-glue remover says cheap works well him Thanks Ernie latest rage fillers Actually its around some time lots just havent discovered yet Red Devil DAP just about everyone else have what touted lightweight one-step spackling paste can tell fact plastic rather metal container white smells funny light sands like balsa cleans up water Its great fillets blends sloppy builders like can find hardware paint stores model shops time time Thanks Walt Mooney Paul Mdl rath Paul suggests mixing drop colored ink 156 Model Aviation FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid us via ups Cal add 6tax SMALL BOX 1/4 lb rubber $450 size Orders up $1500 1/4 lb rubber mdse add $150 ups Ovar $15 add 10% a\1 SEND $1 FAl Model Supply FOR LOG tPOBOX3967TorranceCA 90510 CROCKET HOOKS NOW MADE BY FAI match material color surround ing area Maybe Dr Manns dyes food color ing would work Adding little white glue filler says Paul makes stickier harder sand Its main ingredient believe glass mi croballoons would suggest inhale too much sanding dust have hearing good things month about people getting wives involved modeling Shelly Dittman new hubby Rics hobby Jane Schlosberg has now done third model recent months like hear people sharing good thing Unfortu nately some women get good makes us guys look bad Like Addie Naccaratos huge float biplane just finished Lock heed Museum Hey Lympne fans Richard Riding editor Aeroplane Monthly has new book out called Ultralights Early British Classics incor porates lot material has already ap peared magazine series also has great deal interesting new stuff photo section early engines super 26 selected engines ABC 398cc Walter Micron Nifty planes like Watkinson Dingbat Perman Parasol Carden-Baynes Scud III Angus Aquila Comper autogiro Short Cockle etc grace its pages over 400 photographs scale draw ings data tables covering Golden Age British lightplane history during years tween two world wars book compel ling modelers available 1995 British pounds hardback ask bank international money order amount theyll charge dollars available Patrick Stephens Ltd Denington Estate Wel lingborough Northants NN8 2QD England Highly recommended Understanding propellers can difficult kids classes school often things like carve two opposite-direction blades same blank put camber face blade rear other things like Pennyplane props go upside-down blades get pitch set gives full drag feathered blade trying turn other set zero pitch Adults sometimes quite understand prop works either current fad molding blades side bottle cutting cottage cheese container points out certain misunderstanding spinning propellers tips move through air faster does its hubs Thats way dis tance around circle works Props get thrust way blades angled forward pitch like pitch thread Brits call airserews tip moving faster needs lower angle pitch gets its thrust augmented extra speed turning root end blade near hub just puttering around needs help can get come close what tips develop ing therefore needs much higher angle spect ready-made plastic prop carefully will see Now cut blade cylinder like cottage cheese container normally tilt blade 150 left vertical cylinder 15 0 left molding balsa laminates bot tle gives blade rotated normal fashion will have pitch hub less tip number modelers should know better have found out make blades slanted right guess what happens make perfectly almost normal-looking prop guessed pitch high need low vice-versa will fly model al right performance will suffer Thanks Paul Mellrath Keep blades angled right Pea nuts out snowdrifts Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Duration/Wainfan Continued page 65 problem comes time bring down no stab pop up dethermalize model have tried series gadgets bring down some work some dont Don Ross reports pop-up drag paddle near nose version Cyrano II tailless P-30 December 1986 MAFull-Size Plan No 536 works reasonably well have tried method seems de pendent CG position model CG little too far forward model stable enough drag paddle has very little effect CG further aft drag paddle will pro duce stall bring model down Another method works reasonably well shown photo Don Jenkins Electric wing large spoiler hinged its trailing edge placed well aft wing will often trick use spoilers DT flying wing careful place spoiler should never hinge point forward 50% chord line Forward-mounted spoilers can cause large pitch-down moments can lead serious PRECISION MODEL PRODUCTS Made USA BARSTOCK ALUMINUM PINNE TT-2 75B TT-276-B TT-300-B fl30 1-B RETAIL APPROX SIZE PRICE WT 1-3/4 $1295 0Z 1395 100 OZ 1495 OZ 1695 145 05 1695 18805 1895 16605 1995 2150Z 2195200 05 2395 OZ 2595 OZ 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add $3 00 Per Spinner PROP NUT ADAPTORS PART NOSIZE TT-140-A1/4-28 TT-610-A6x 1 0mm ET-710-A7s1Omm TT-516-A .5/16-24 TT-810-A .8s 10mm . TT-825-A .8 x 125mm TT-375-A .3/8-24 TT-125-A 125mm RETAIL APPROX PRICE WT $395 . 061 05 395 . 063 OZ 395 . 082 05 395 . 076 OZ 395 . 0760Z 395 . 075 05 495 . 11705 495 . 1150Z 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 536 SOUTH HOUSTON TEXAS 77587 713 943-1867 2-3/4 2-3/4/FAll 3 3/FAIl January 1988 157 THE DIFFERENT FOAM MODEL Lowest Cost Modeling COUGAR 1 Send $100 PEtH latest fine-grain sheet foam developments foam samples FREE foam sources Hard Shell finishes now available Dozens easy build foam airplane plans Peanuts R/C FOAM SCALE MODELS Box 662MA St Croix Falls WI 54024 PART NO TT-175-B TT200-B 2 TT-225-B 4 TT-226-B2-1/4 IFAII TT-250-B 2-1/2 TT-251-82-1/2/FAIl
Edition: Model Aviation - 1988/01
Page Numbers: 62, 63, 156, 157
N ALL KIDS love light fuses Fourth July used favorite holiday Jetex mo tors came along 1947 us fuse-lighters attached new toys models vary ing degrees success Jetex event Nats always spectacular about models refusing light about crashing high jet-powered speed about flying out sight first really good jet flight ever saw Hal Swansons Opel Hatry model launched rail Flighsmasters Annual back early Sixties bigger engines Scorpion flew exactly would imag ine real would about good Scale subject can think form power others requiring thin metal tube down center fuselage keep model burning up engine up near CG Still some crafty modelers out may think up ways utilizing new Jet-X 50-Z smallest-size motor old line other Scale applications Maybe aluminum drink-can augmenter tubes can concocted permit en closing motors get hot thats sure Whereas old fuel having guanidine ni trate base gave steady burn hard light required disposable screen between fuel jet orifice new fuel burns short fits half full secondsort pulse screen gone though have no prob lems lighting time contains potas sium dichromate stuff makes 62 Model Aviation Free Flight Sport & Scale Bill Warner Bob Currys rubber-powered 8-25 has contra-rotating props lots fancy vacu-forming Its still trimming stages flight Seen 86 Flightmasters Annual Los Angeles CA Andre Merta launches rubber-powered Miles Magister contest Czechoslovakia Rubber Scale very much alive well contlnentl Photo Lubomir Koutny Lubomir Koutnys new 1/20-scale SM92 rubber-powered ship walked off its first contest win Czechoslovakia year Span 930mm weight 100gm flies over 70 secondsl Photo Koutny Col Hurst Bowers curator AMA Museum Renard R17 Electric-powered craft uses VL unit spans 30 blown up Walt Mooney Peanut plans Schmitt photo July 4th pellet snakes work two-pellet load maximum can pack motor case will power 22-in-span model about 20 sec maximum thrust lots safety precautions come new engines like putting aluminum foil over exposed parts model eating pellets wearing full face shield like Actually motors pretty safe old ones biggest danger coming off its mount event crash under power taking off parts unknown Theyre devilish things find Safety-wiring something solid model usually cured club has instituted jet event though wise enough limit Jet-X allowing contes tants put props jet models least year instructions come new Jet-X motor fairly clear would recommend ex treme care seating disposable silicone rub ber washer shut engine up fuel couple tries rotate seated cap Two different models same plane two workbenches Stin son Reliant L author Warners Chet Kowaliks RWarren Ml built Bill Winters design June 1936 issue Flying Aces first reader spot 10 dIfferences between two workbenches will get his/her name written blackboard may save blowing hot exhaust out side have couple times Another trick have just bit extra coated wire-core fuse inside assembling loaded engine give little spring effect will shove part inserted hole fuel pellet solidly against what supposed ignite Also dont count jet blast blowing RIGHT wire used fuse out jet orifice Wetting thumb first finger can snatch out hole soon engine starts hiss real exhaust blast takes about five seconds get going fully Jet-X made England available US Peck Polymers PO Box 2498 La Continued page 1S6 WROIVG I-I/Gil 4VGLEi-fIG/I AT\H&BAIIVGLE 71T LOWOW4VGLE WI I1VGLE TI-it/B LOOK/NC FROM 7/P TOWQRD HUB FAR BLWE NOT SHOWN Paul Mcllrath shows unsuspecting modeler can get caught trap making his/her own prop blades using bottle cotttage cheese container method Can tell blade right got messed up answers column somewhere L7ri4t said almost hobby would benefit contact aeromodeling Dick Allens bonsai Gee Bee certainly positive proof Well January 1988 63 liii IS V Jetex back Oops Its named Jet-X now 50-Z engine may look like old have few Improvements Peck-Polymers has Sorry cant use new-formula fuel pellets old units details column Jane chlosberg Scottsdale AZ made lovely Rearwin Speedster Golden Age Reproductions kit Would believe its third model shes built Photo sent us Bob Schlosberg sand sand get humps bumps Try Easy San4IerTM See Difference Made select wood extremely light sander hold full oheet sand paper Flat sanded accurate sanding surface Large flat surfaces sanding area LO 50 $095 ea get shaky whenDo hate field isnt longto install enoughhinges Try Easy BrakenM See DifferenceTry Easy HingesnM See Difference single slot few drops C/A glue its done No gosling pinning hinge pins worry about Incredibly strong virtually indestructible Extremely easy ts install lard find spring steel fiber washers Braking action remains constant during rapeated useLO 10024 hiioeS $205 00 0 Three sizes 1/8 5/32 316LO 140 141 142 Oorea EAY5RNDER 1U2EASY BRAKE izQ Box 1743 Marcos CA 92069 ing people community what youre seeking sure image re flects same kind professionalism Present positive image out understand hobby view us skepticism lack trust help overcome prejudice sure dress appropriately speak po litely making contacts community Club members acting con tact people should dress properly occasion jacket tie dealing business people politicians casual still neat attire visiting farmers Advise members also polite speak slowly clear can about what club representatives want Despite best efforts reflect posi tive image club hobby youll still probably meet resistance times efforts help locate field experi enced some hard realities prejudice against activity building flying model airplanes know its tough deal have just write off ex periences keep moving club name also projects image very interesting article Jeff Troy AMA assistant director public relations AMA National Newsletter several months ago addressed issue club names images As result made few name changes stationery suit different situations Since name Aerobugs has potentially negative connotation adopted International Miniature Aircraft Association Chapter 168 alternative out-of-state letters created special stationery plays down name Levittown muns mizing reference specific geograph ic area clubs history influences its image too whether good bad relations prior site-owners positive might ask write letters introduction recommendation could very helpful might consider using attorney Pennsylvania land use statute granting owners immunity liability allow others use land recrea tional purposes no charge As mentioned earlier obtained information has far-reaching value club future field search efforts through attorney dealt proposed industrial flying site Although site fell through re tained companys lawyer complete re search statute Once club has found new field youll investing good deal effort preparing itand keeping Use same professional approach dealing new landlord neighbors multitude situations will develop Again AMA booklet has much valuable information topic keeping site never said searching new fly ing site isffin youll have some interest ing experiences meet new people learn some new things about life during process satisfactionand results well worth effort Most will have moved ahead towards com mon goal Keep em Flying FF Scale/Warner Continued page 63 Mesa CA 92044 engine $1095 itself $2249 pellets wick gaskets etc Add $2 postage Bad news holding old Jetex engines cant get fuel new fuel will work say old engine final caution have Jetex experience careful drying pellets old pellets hygroscopic soaked up mois ture left around very long would light anything Guys used put cookie sheet oven leave long time low heat Well flash point new ones gas-generating 2000 Fahrenheit would seem make unwise solution Maybe could use oven made cardboard box low-wattage light bulb inside would better out yardjust case did go off Two good nitrate dope sources have come attention quest find some shrinks up like dope should hesitate use word taut ening offends semantic sensibilities Ric Dittman up Washington indicates Randolph clear nitrate user-friendly hes tried Its available Wag-Aero Box 181 1216 N-Road Lyons WI 53148 tel 414 763-9586 quart goes bit over five bucks plus postage based zip code weight Ric used non-t nitrate dope second-place-at-the-Nats T-Crafts silk have sag bag sitting hot sun has since retightened second source dope Im sounding like pusher today suggested Art Watkins Mt View CA Hes using Aero-Dyne Allen Heinrich 3154 Falcon Pomona CA 91767 tel 714 593-5789 goes about $1150 gallon Allen also sells good diesel fuel $11 quart Thanks guys Mini-Electrics beginning boom knew already now probably have box full toy electric motors gears could find have scouting over small batteries run em Tom Schmitt Rockville MD sent along catalog R D Electronics 1202H Pine Island Rd Cape Coral FL 33909 tel 813 772-1441 have Super Sub C 12-volt 2-Ah cells 99 cents 1/n-AA three-packs developing 36-volt 100 mAh $250/stick also have little Kodak disc-camera minimotors carbon brushes 10 $250 rewound end good brushes put toy car motor have very nice cheap miniature power plant Gear 31 71 business R D has minimum order $10 might want send catalog see theres anything else can use Anyone family smelling bad lately might suggest try some Dry Idea antiperspirant Because cap product perfect cowling radial rotary engine thats Maybe could write suggest put Out anti-BO stuff differ ent scales Ernie Wrisley Santee CA sends along cowl idea well endorsement Duro super-glue remover says cheap works well him Thanks Ernie latest rage fillers Actually its around some time lots just havent discovered yet Red Devil DAP just about everyone else have what touted lightweight one-step spackling paste can tell fact plastic rather metal container white smells funny light sands like balsa cleans up water Its great fillets blends sloppy builders like can find hardware paint stores model shops time time Thanks Walt Mooney Paul Mdl rath Paul suggests mixing drop colored ink 156 Model Aviation FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid us via ups Cal add 6tax SMALL BOX 1/4 lb rubber $450 size Orders up $1500 1/4 lb rubber mdse add $150 ups Ovar $15 add 10% a\1 SEND $1 FAl Model Supply FOR LOG tPOBOX3967TorranceCA 90510 CROCKET HOOKS NOW MADE BY FAI match material color surround ing area Maybe Dr Manns dyes food color ing would work Adding little white glue filler says Paul makes stickier harder sand Its main ingredient believe glass mi croballoons would suggest inhale too much sanding dust have hearing good things month about people getting wives involved modeling Shelly Dittman new hubby Rics hobby Jane Schlosberg has now done third model recent months like hear people sharing good thing Unfortu nately some women get good makes us guys look bad Like Addie Naccaratos huge float biplane just finished Lock heed Museum Hey Lympne fans Richard Riding editor Aeroplane Monthly has new book out called Ultralights Early British Classics incor porates lot material has already ap peared magazine series also has great deal interesting new stuff photo section early engines super 26 selected engines ABC 398cc Walter Micron Nifty planes like Watkinson Dingbat Perman Parasol Carden-Baynes Scud III Angus Aquila Comper autogiro Short Cockle etc grace its pages over 400 photographs scale draw ings data tables covering Golden Age British lightplane history during years tween two world wars book compel ling modelers available 1995 British pounds hardback ask bank international money order amount theyll charge dollars available Patrick Stephens Ltd Denington Estate Wel lingborough Northants NN8 2QD England Highly recommended Understanding propellers can difficult kids classes school often things like carve two opposite-direction blades same blank put camber face blade rear other things like Pennyplane props go upside-down blades get pitch set gives full drag feathered blade trying turn other set zero pitch Adults sometimes quite understand prop works either current fad molding blades side bottle cutting cottage cheese container points out certain misunderstanding spinning propellers tips move through air faster does its hubs Thats way dis tance around circle works Props get thrust way blades angled forward pitch like pitch thread Brits call airserews tip moving faster needs lower angle pitch gets its thrust augmented extra speed turning root end blade near hub just puttering around needs help can get come close what tips develop ing therefore needs much higher angle spect ready-made plastic prop carefully will see Now cut blade cylinder like cottage cheese container normally tilt blade 150 left vertical cylinder 15 0 left molding balsa laminates bot tle gives blade rotated normal fashion will have pitch hub less tip number modelers should know better have found out make blades slanted right guess what happens make perfectly almost normal-looking prop guessed pitch high need low vice-versa will fly model al right performance will suffer Thanks Paul Mellrath Keep blades angled right Pea nuts out snowdrifts Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Duration/Wainfan Continued page 65 problem comes time bring down no stab pop up dethermalize model have tried series gadgets bring down some work some dont Don Ross reports pop-up drag paddle near nose version Cyrano II tailless P-30 December 1986 MAFull-Size Plan No 536 works reasonably well have tried method seems de pendent CG position model CG little too far forward model stable enough drag paddle has very little effect CG further aft drag paddle will pro duce stall bring model down Another method works reasonably well shown photo Don Jenkins Electric wing large spoiler hinged its trailing edge placed well aft wing will often trick use spoilers DT flying wing careful place spoiler should never hinge point forward 50% chord line Forward-mounted spoilers can cause large pitch-down moments can lead serious PRECISION MODEL PRODUCTS Made USA BARSTOCK ALUMINUM PINNE TT-2 75B TT-276-B TT-300-B fl30 1-B RETAIL APPROX SIZE PRICE WT 1-3/4 $1295 0Z 1395 100 OZ 1495 OZ 1695 145 05 1695 18805 1895 16605 1995 2150Z 2195200 05 2395 OZ 2595 OZ 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add $3 00 Per Spinner PROP NUT ADAPTORS PART NOSIZE TT-140-A1/4-28 TT-610-A6x 1 0mm ET-710-A7s1Omm TT-516-A .5/16-24 TT-810-A .8s 10mm . TT-825-A .8 x 125mm TT-375-A .3/8-24 TT-125-A 125mm RETAIL APPROX PRICE WT $395 . 061 05 395 . 063 OZ 395 . 082 05 395 . 076 OZ 395 . 0760Z 395 . 075 05 495 . 11705 495 . 1150Z 3 Piece Set Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 536 SOUTH HOUSTON TEXAS 77587 713 943-1867 2-3/4 2-3/4/FAll 3 3/FAIl January 1988 157 THE DIFFERENT FOAM MODEL Lowest Cost Modeling COUGAR 1 Send $100 PEtH latest fine-grain sheet foam developments foam samples FREE foam sources Hard Shell finishes now available Dozens easy build foam airplane plans Peanuts R/C FOAM SCALE MODELS Box 662MA St Croix Falls WI 54024 PART NO TT-175-B TT200-B 2 TT-225-B 4 TT-226-B2-1/4 IFAII TT-250-B 2-1/2 TT-251-82-1/2/FAIl