Free Flight OLD- TIMER Clarence Haught MANY us can remember men tion dope didnt raise eyebrows Maybe held nose knowing unappreciativebut no bad connotations Today judging some inquiries receive modelers arent well-versed traditional aircraft finish fact some newcomers Old-Timer activity have experienced iron-on plastic coverings modern one-application finishes certainly fill need somehow just dont look right Old-Timer Tissue fabric covering fin ished aircraft dope proper thing Dope comes two persuasions cellulose nitrate ate short cellulose acetate butyrate known CAB simply butyrate Excluding banana-oil era early modeling Old-Timers used avail able nitrate dope Nitrate dope made basi cally nitration pure cellulose form cotton linters wood pulp nitric sulfuric acids process results nitrogen content 10% 12% Read flammable main dis advantages nitrate dope disadvantage side other major problem nitrate dope its tendency brittle especially age can alleviated addition plasticizer common plasticizer castor oil about 16 drops per pint will sophisticated plasticizing agent tricresyl phosphate TCP provides good re sistance low-temperature cracking use about eight drops per pint Maybe youve seen work Aviation Artist Bob Benjamin cover Model Builder also flies Old-Timer FF RC Heres 020 Replica Playboy climbing Out 020 Replica event ideal way get involved fun O-T minimum cosVmaximum pleasure Advantages nitrate dope its adhe sion qualities reasonably low shrinkage rate Read low warpage Nitrate dope affected gasoline-based fuels advent of glow ignition new Continued page 150 Heres airfoil coordinates two Chet Lanzos famous designsmeasured right off ribs Use em draw ribs own uses LANZO BOMBER AIRFOIL SECTION LANZO STICK AIRFOIL SECTION K K Bomb Stick 5068022572565 75810fl5508402 251205I 520147006 401241630166L7 60I 2225014624 801650970109513 9315038070507 8518009019500 100 06 00 LEADING EDGE RAD 17 LFAflI flfl August 1983 59 Simplex Engines security system duty No mouse going carry oft new Hornet 19 sideport ignition engines new batch selling fast Engine will turn 9-4 prop 10000 rpm Theyre SAMapproved Old-Timer competition Avid Old-Timer enthusiast Bud McNorgan shows oft Canadian Modelcraff Hornet design 1939 Model spans 48 has 308 sq wing areaproved vastly overpowered Simplex Hornet 19 running all-out Note air-leak engine timer mounted aft wing antenna TRF section rarely need retuning Leave alone waste lot time Some receivers dual-conversion types easily identified presence extra crystal usually 11155 MHz extra IF transformers Tuning done same way before except 107 MHz IF strip first may have trouble identifying IF transformers besides dual-conversion tuning itself pain head Most folks prefer leave professionals have proper equipment make job easier Ive included couple examples will know what am discussing own judge whether want take job Transmitters need occasional tuning dont wont have proper tools control harmonic emissions Besides Federal Law requires transmitter tuning done holders Commercial license Send back manufac turer George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FF Old-Timers/Haught Continued page 59 problem surfacedthat softening ni trate finishes alcohol-based fuels Early solutions varnish-based hot fuel proofers created weight patch ing problems Butyrate dopes apparent solu tion modelers problems does have major disadvantage never quits shrinkine Eve observed full-size aircraft fu selage stringers flying surface trailing edges hopelessly warped distorted ravages butvrate dope variation known non-tautenine CAB exists readily available through model supply houses now youve probably concluded nitrate dope way go OldTimers powercd ignition engines Now comes question applicationto brush spray Spraying gives smoothest finish brushing good camel-hair brush will give acceptable results Initial coats least two should brushed lncoqporated 322 Sa Gallatin Rd son TN 37115 615 868-6811Mon thru Sat am 500 pm SALES ______________________ RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOS IlI Ill -- insure good bond covering Use brush tissue silkspan silk try new foam brushes flow dope Using brush silk allows dope work through cloth run down back side causing ugly blisters known cure blisters cut out apply patch Thin dope enough work undue brushing thin coats will take seal covering Spraying will re quire thinner coats Separate thinners available nitrate butyrate dope use just thinner both automotive acrylic lacquer thinner Get best three grades available Too much thinning either brush spray appli cations leads runs use sparingly spraying dope too thick finish will have orange peel effect Add thinner and/or hold spray gun far ther surface minimize effect As previously mentioned apply enough dope seal covering airtight fuelproof Build up finish clear dope add pigmented dope color desired Clear dope over colored covering works great lightweight applying color dope over clear sometimes small pin holes show up indicating covering sufficiently sealed Add clear dope try again common dope troubles blushing indicated milky film appearing surface dope dries phenomenon caused rapid evaporation highly-volatile mate rial cooling action will cause moisture condense surface freshly-applied dope resulting milky appearance Blushed dope has no gloss remedy blushing slow drying process addition 5% retarder added thinner used Retarder available automotive paint supply houses will have buy gallon Better try small amount auto body repair shop take own can retarder avail able try postponing doping until less humid day Dopes available retail hobby out lets sometimes nitrate dopes stocked may have ordered Local Fine Quality flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC AccessOriCS Books Catatog 3150 4 8 4 4 * MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 150 Model Aviation Magic Dragon Trainer Engine Size 25Pre Built Wing Span 55 in$9995 3 4 ChannelsPlus shipping Lives Up Toand handling Its Name__MAGIC! balsa construction Ready fine sand cover Control surfaces hinged HalIco landing gear u nose gear strut Fitted canopy Instruction booklet hardware included Fire Fox Ultimate Sport FlyingPre Built Engine Size 40$12495 Wing Span 52h inPlu shipping handling 4 Channels balsa construction Ready fine sand cover Control surfaces hinged Has bolton wire HalIco landing gear wheel pants mounted axels installed Fitted canopy Instruction booklet hardware included Designers Builders Fine PRE-BUIL T R/C Models Order Today Send check MO also accept Master Card VisaModels shipped 350 PSI carton via UPS Shipping handling $850 Fl residents add 5% sales tax AEROTECH R/C 3850 US Hwy 19 No. Palm Harbor FL 33563 81319383266 have SIX other models available Send Now free brochure Dealer Inquiries Invited REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SNACK rROYAL LINE ATTENTION QUARTER & GIANT SCALE MQDELERS LLITSAP need iti LLIT-SAP multiple servo LONG LEAD INTERFERENCE TRAP & SERVO ALTERNATE POWER adap tor Specify radio ordering $2995 postage paid send large SSAE for literature airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft
Edition: Model Aviation - 1983/08
Page Numbers: 59, 150, 151
Free Flight OLD- TIMER Clarence Haught MANY us can remember men tion dope didnt raise eyebrows Maybe held nose knowing unappreciativebut no bad connotations Today judging some inquiries receive modelers arent well-versed traditional aircraft finish fact some newcomers Old-Timer activity have experienced iron-on plastic coverings modern one-application finishes certainly fill need somehow just dont look right Old-Timer Tissue fabric covering fin ished aircraft dope proper thing Dope comes two persuasions cellulose nitrate ate short cellulose acetate butyrate known CAB simply butyrate Excluding banana-oil era early modeling Old-Timers used avail able nitrate dope Nitrate dope made basi cally nitration pure cellulose form cotton linters wood pulp nitric sulfuric acids process results nitrogen content 10% 12% Read flammable main dis advantages nitrate dope disadvantage side other major problem nitrate dope its tendency brittle especially age can alleviated addition plasticizer common plasticizer castor oil about 16 drops per pint will sophisticated plasticizing agent tricresyl phosphate TCP provides good re sistance low-temperature cracking use about eight drops per pint Maybe youve seen work Aviation Artist Bob Benjamin cover Model Builder also flies Old-Timer FF RC Heres 020 Replica Playboy climbing Out 020 Replica event ideal way get involved fun O-T minimum cosVmaximum pleasure Advantages nitrate dope its adhe sion qualities reasonably low shrinkage rate Read low warpage Nitrate dope affected gasoline-based fuels advent of glow ignition new Continued page 150 Heres airfoil coordinates two Chet Lanzos famous designsmeasured right off ribs Use em draw ribs own uses LANZO BOMBER AIRFOIL SECTION LANZO STICK AIRFOIL SECTION K K Bomb Stick 5068022572565 75810fl5508402 251205I 520147006 401241630166L7 60I 2225014624 801650970109513 9315038070507 8518009019500 100 06 00 LEADING EDGE RAD 17 LFAflI flfl August 1983 59 Simplex Engines security system duty No mouse going carry oft new Hornet 19 sideport ignition engines new batch selling fast Engine will turn 9-4 prop 10000 rpm Theyre SAMapproved Old-Timer competition Avid Old-Timer enthusiast Bud McNorgan shows oft Canadian Modelcraff Hornet design 1939 Model spans 48 has 308 sq wing areaproved vastly overpowered Simplex Hornet 19 running all-out Note air-leak engine timer mounted aft wing antenna TRF section rarely need retuning Leave alone waste lot time Some receivers dual-conversion types easily identified presence extra crystal usually 11155 MHz extra IF transformers Tuning done same way before except 107 MHz IF strip first may have trouble identifying IF transformers besides dual-conversion tuning itself pain head Most folks prefer leave professionals have proper equipment make job easier Ive included couple examples will know what am discussing own judge whether want take job Transmitters need occasional tuning dont wont have proper tools control harmonic emissions Besides Federal Law requires transmitter tuning done holders Commercial license Send back manufac turer George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FF Old-Timers/Haught Continued page 59 problem surfacedthat softening ni trate finishes alcohol-based fuels Early solutions varnish-based hot fuel proofers created weight patch ing problems Butyrate dopes apparent solu tion modelers problems does have major disadvantage never quits shrinkine Eve observed full-size aircraft fu selage stringers flying surface trailing edges hopelessly warped distorted ravages butvrate dope variation known non-tautenine CAB exists readily available through model supply houses now youve probably concluded nitrate dope way go OldTimers powercd ignition engines Now comes question applicationto brush spray Spraying gives smoothest finish brushing good camel-hair brush will give acceptable results Initial coats least two should brushed lncoqporated 322 Sa Gallatin Rd son TN 37115 615 868-6811Mon thru Sat am 500 pm SALES ______________________ RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOS IlI Ill -- insure good bond covering Use brush tissue silkspan silk try new foam brushes flow dope Using brush silk allows dope work through cloth run down back side causing ugly blisters known cure blisters cut out apply patch Thin dope enough work undue brushing thin coats will take seal covering Spraying will re quire thinner coats Separate thinners available nitrate butyrate dope use just thinner both automotive acrylic lacquer thinner Get best three grades available Too much thinning either brush spray appli cations leads runs use sparingly spraying dope too thick finish will have orange peel effect Add thinner and/or hold spray gun far ther surface minimize effect As previously mentioned apply enough dope seal covering airtight fuelproof Build up finish clear dope add pigmented dope color desired Clear dope over colored covering works great lightweight applying color dope over clear sometimes small pin holes show up indicating covering sufficiently sealed Add clear dope try again common dope troubles blushing indicated milky film appearing surface dope dries phenomenon caused rapid evaporation highly-volatile mate rial cooling action will cause moisture condense surface freshly-applied dope resulting milky appearance Blushed dope has no gloss remedy blushing slow drying process addition 5% retarder added thinner used Retarder available automotive paint supply houses will have buy gallon Better try small amount auto body repair shop take own can retarder avail able try postponing doping until less humid day Dopes available retail hobby out lets sometimes nitrate dopes stocked may have ordered Local Fine Quality flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC AccessOriCS Books Catatog 3150 4 8 4 4 * MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 150 Model Aviation Magic Dragon Trainer Engine Size 25Pre Built Wing Span 55 in$9995 3 4 ChannelsPlus shipping Lives Up Toand handling Its Name__MAGIC! balsa construction Ready fine sand cover Control surfaces hinged HalIco landing gear u nose gear strut Fitted canopy Instruction booklet hardware included Fire Fox Ultimate Sport FlyingPre Built Engine Size 40$12495 Wing Span 52h inPlu shipping handling 4 Channels balsa construction Ready fine sand cover Control surfaces hinged Has bolton wire HalIco landing gear wheel pants mounted axels installed Fitted canopy Instruction booklet hardware included Designers Builders Fine PRE-BUIL T R/C Models Order Today Send check MO also accept Master Card VisaModels shipped 350 PSI carton via UPS Shipping handling $850 Fl residents add 5% sales tax AEROTECH R/C 3850 US Hwy 19 No. Palm Harbor FL 33563 81319383266 have SIX other models available Send Now free brochure Dealer Inquiries Invited REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SNACK rROYAL LINE ATTENTION QUARTER & GIANT SCALE MQDELERS LLITSAP need iti LLIT-SAP multiple servo LONG LEAD INTERFERENCE TRAP & SERVO ALTERNATE POWER adap tor Specify radio ordering $2995 postage paid send large SSAE for literature airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft
Edition: Model Aviation - 1983/08
Page Numbers: 59, 150, 151
Free Flight OLD- TIMER Clarence Haught MANY us can remember men tion dope didnt raise eyebrows Maybe held nose knowing unappreciativebut no bad connotations Today judging some inquiries receive modelers arent well-versed traditional aircraft finish fact some newcomers Old-Timer activity have experienced iron-on plastic coverings modern one-application finishes certainly fill need somehow just dont look right Old-Timer Tissue fabric covering fin ished aircraft dope proper thing Dope comes two persuasions cellulose nitrate ate short cellulose acetate butyrate known CAB simply butyrate Excluding banana-oil era early modeling Old-Timers used avail able nitrate dope Nitrate dope made basi cally nitration pure cellulose form cotton linters wood pulp nitric sulfuric acids process results nitrogen content 10% 12% Read flammable main dis advantages nitrate dope disadvantage side other major problem nitrate dope its tendency brittle especially age can alleviated addition plasticizer common plasticizer castor oil about 16 drops per pint will sophisticated plasticizing agent tricresyl phosphate TCP provides good re sistance low-temperature cracking use about eight drops per pint Maybe youve seen work Aviation Artist Bob Benjamin cover Model Builder also flies Old-Timer FF RC Heres 020 Replica Playboy climbing Out 020 Replica event ideal way get involved fun O-T minimum cosVmaximum pleasure Advantages nitrate dope its adhe sion qualities reasonably low shrinkage rate Read low warpage Nitrate dope affected gasoline-based fuels advent of glow ignition new Continued page 150 Heres airfoil coordinates two Chet Lanzos famous designsmeasured right off ribs Use em draw ribs own uses LANZO BOMBER AIRFOIL SECTION LANZO STICK AIRFOIL SECTION K K Bomb Stick 5068022572565 75810fl5508402 251205I 520147006 401241630166L7 60I 2225014624 801650970109513 9315038070507 8518009019500 100 06 00 LEADING EDGE RAD 17 LFAflI flfl August 1983 59 Simplex Engines security system duty No mouse going carry oft new Hornet 19 sideport ignition engines new batch selling fast Engine will turn 9-4 prop 10000 rpm Theyre SAMapproved Old-Timer competition Avid Old-Timer enthusiast Bud McNorgan shows oft Canadian Modelcraff Hornet design 1939 Model spans 48 has 308 sq wing areaproved vastly overpowered Simplex Hornet 19 running all-out Note air-leak engine timer mounted aft wing antenna TRF section rarely need retuning Leave alone waste lot time Some receivers dual-conversion types easily identified presence extra crystal usually 11155 MHz extra IF transformers Tuning done same way before except 107 MHz IF strip first may have trouble identifying IF transformers besides dual-conversion tuning itself pain head Most folks prefer leave professionals have proper equipment make job easier Ive included couple examples will know what am discussing own judge whether want take job Transmitters need occasional tuning dont wont have proper tools control harmonic emissions Besides Federal Law requires transmitter tuning done holders Commercial license Send back manufac turer George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 FF Old-Timers/Haught Continued page 59 problem surfacedthat softening ni trate finishes alcohol-based fuels Early solutions varnish-based hot fuel proofers created weight patch ing problems Butyrate dopes apparent solu tion modelers problems does have major disadvantage never quits shrinkine Eve observed full-size aircraft fu selage stringers flying surface trailing edges hopelessly warped distorted ravages butvrate dope variation known non-tautenine CAB exists readily available through model supply houses now youve probably concluded nitrate dope way go OldTimers powercd ignition engines Now comes question applicationto brush spray Spraying gives smoothest finish brushing good camel-hair brush will give acceptable results Initial coats least two should brushed lncoqporated 322 Sa Gallatin Rd son TN 37115 615 868-6811Mon thru Sat am 500 pm SALES ______________________ RADIO SYSTEMS FUTABA ROYAL ACCESSORIES FOR MOST RADIOS IlI Ill -- insure good bond covering Use brush tissue silkspan silk try new foam brushes flow dope Using brush silk allows dope work through cloth run down back side causing ugly blisters known cure blisters cut out apply patch Thin dope enough work undue brushing thin coats will take seal covering Spraying will re quire thinner coats Separate thinners available nitrate butyrate dope use just thinner both automotive acrylic lacquer thinner Get best three grades available Too much thinning either brush spray appli cations leads runs use sparingly spraying dope too thick finish will have orange peel effect Add thinner and/or hold spray gun far ther surface minimize effect As previously mentioned apply enough dope seal covering airtight fuelproof Build up finish clear dope add pigmented dope color desired Clear dope over colored covering works great lightweight applying color dope over clear sometimes small pin holes show up indicating covering sufficiently sealed Add clear dope try again common dope troubles blushing indicated milky film appearing surface dope dries phenomenon caused rapid evaporation highly-volatile mate rial cooling action will cause moisture condense surface freshly-applied dope resulting milky appearance Blushed dope has no gloss remedy blushing slow drying process addition 5% retarder added thinner used Retarder available automotive paint supply houses will have buy gallon Better try small amount auto body repair shop take own can retarder avail able try postponing doping until less humid day Dopes available retail hobby out lets sometimes nitrate dopes stocked may have ordered Local Fine Quality flying Models 98 RUBBER POWER KITS plus Gliders C/L RIC AccessOriCS Books Catatog 3150 4 8 4 4 * MAJESTIC MODELS 3273 West 129th Street Cleveland Ohio 44111 150 Model Aviation Magic Dragon Trainer Engine Size 25Pre Built Wing Span 55 in$9995 3 4 ChannelsPlus shipping Lives Up Toand handling Its Name__MAGIC! balsa construction Ready fine sand cover Control surfaces hinged HalIco landing gear u nose gear strut Fitted canopy Instruction booklet hardware included Fire Fox Ultimate Sport FlyingPre Built Engine Size 40$12495 Wing Span 52h inPlu shipping handling 4 Channels balsa construction Ready fine sand cover Control surfaces hinged Has bolton wire HalIco landing gear wheel pants mounted axels installed Fitted canopy Instruction booklet hardware included Designers Builders Fine PRE-BUIL T R/C Models Order Today Send check MO also accept Master Card VisaModels shipped 350 PSI carton via UPS Shipping handling $850 Fl residents add 5% sales tax AEROTECH R/C 3850 US Hwy 19 No. Palm Harbor FL 33563 81319383266 have SIX other models available Send Now free brochure Dealer Inquiries Invited REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SNACK rROYAL LINE ATTENTION QUARTER & GIANT SCALE MQDELERS LLITSAP need iti LLIT-SAP multiple servo LONG LEAD INTERFERENCE TRAP & SERVO ALTERNATE POWER adap tor Specify radio ordering $2995 postage paid send large SSAE for literature airports servicing private aircraft may have can order aircraft supply houses Aircraft-grade dope much thicker available hobby shops will require thinning model use Lanzo airfoils recently received ac companying airfoils Chet Lanzo Chet has recieved requests airfoils several interested parties has generously offered use modeling public drawings coordi nates allow reproduced chord size taken directly original ribs 1-larley Hoffman Harley Chet fly models together Both Lanzo Bomber Lanzo 1937 Nats RC Champ seen occasional meet modelers familiar Lanzo Record Breaker favorite 0-I designs Ive seen eight-footer scaled up 12 feet flown RC-assist Harley has built four versions Lanzo Bomber original eight-ft span plus 74 80 106 wingspans thanks Chet New goodies Ive advised avid Old-Timer enthusiast Woody Bartelt long last producing die cast aluminum timer housings Arden 099 199 en gines Now chance get Arden back service Contact Woody Micro Model Engineering 5600 Portage Road Suite 112 Kalamazoo MI 49002 Ive also received word new pub lication England SAM 35 Yearbook Vol available Lord David Baker 22 Ellington Rd Muswell Hill London N 10 England Seven bucks will bring door postpaid Clarence Haught 3226 Hone vsackle Dr Cocur dAlene ID 83814 SFC Alpha-One/St Jean Continued paqe 64 stab hook place Bend 3-in-long piece A2-in piano wire U shape epoxy rudder-stabilizer junction protrude out rear /2 Cut stabilizer platform either / hard /32 lightweight balsa grain running spanwise should 11/4 wide 5/ long provide mount /6 x a stab-stop block pieces may quickly joined cyanoacrylate glue CyA shaped suit sanded epoxy stab platform fuselage time unless fuselage filmed Perform trial balance model fuselage tail wing engine tem porarily assembled Should plane nose-heavy move engine aft until CG center gravity balance point about /x forward wings TE Carefully saw off excess forward fuse lage necessary point indicated reproducing 5-degree downthrust anglewith no sidethrust Cut out /4 plywood firewall fit front fuselage epoxy place Block-sand ordinary sandpaper feather foam being careful hold block slight angle paper foam will sanded Should firewall little undersize places add epoxy make level foam Nudope third layer silkspan fuselage overlaps firewall run ning aft cabin starts Put fourth layer about /2-in wide just around firewall help secure Put extra coat Nudope entire fuselage once dry trimmed sanded lightly Add coloring desired simulate cabin other trim label name address phone number case model becomes lost done completely dry film fuselage except landing gear stab plat form located front firewall Epoxy stab platform place adding 3-in-long U-shaped piece /32-in piano wire stab bottom fuse lage snuffer tube dethermalizer DI fuse Bend landing gear /16-in piano wire cut out its /16 plywood mounting plate fit fuselage drill /6-in holes ap propriate sew gear plate large needle carpet thread desired have gear forward shown mount backwards Epoxy Continued page 152 RUBBER STRIP FAI RUBBER Made USA SIZES 1/4 3/16 1/82/32 1/16 1mm thick 042 BOXED 16 ounces rubber per box PRICE$1250 per box ppdin USA California Residents Add 6% Sales Tax KSB TIMERS FUEL SHUTOFF 3OSEC $1195 6 MIN DT $1195 SEND 5OFOR 1982/83 CATALOG Model I-POBOX3957TORFlANcEcAgo51o OFF tMtt SMASH SUCCESS TOLEDO! Thousands Already SOLD! 242 PAGES KITS/RADIOS ENGINES/ACCESSORIES TOOLS/SUPPLIES BOOKS/EQUIPMENT Major minor US Manufacturers represented entire product line Technical Descriptions & Prices Photos & Illustrations & Buy Hundreds Scratch Plans Model Aviation RCM & Others An Invaluable Source Book Products Beginner Expert See July 83 Model Aviation Product Review Guide Dealer Inquiries Welcome See Local Dealer Order Direct NAME ADDRESS Send check money order consumers Guide consumers Guide P0 Box 376 Great Falls VA 22066 Send S6B0llncludes osta alhandlina canadian Orders sendInc udes postjhandl Overseas orders sand $786 Includes post/hand MA AUgUSt 1983 151 First Guide Devoted Exclusively R/C Aircraft