Control Line. Scale Mike Gretz WHILE dont recommend handing overworked scale judge multi-volume library subject aircraft books can valuable source high-quality ten rare photos drawings scale re search documentation Parts book relating subject aircraft nec essary presentation either can prominently marked masked out book removed entirely inclusion presentation folder Most bookstores seem stock very few type aviation books helpful scale builder could surprised learn simply sending few catalogs hun dreds aviation related books other publications available us fact several mail-order book compan ies deal exclusively aviation sub jects list titles catalogs seems almost endless ranges short profile type booklets large hard bound volumes can get books dealing specific airplane families air planes historic aviation events eras aircraft companies designers addi tion mail-order book dealers several publishers aviation books can buy directly also have informative catalogs month Im going list sour ces aviation publications am fa miliar use frequently real ize list probably incomplete know other good sources can recommend let us hear Judging experiences lot scale-inclined modelers arent aware what available thus someday scale project may never get off ground sending some book catalogs may find informa tion have needing small catch will probably find browsing through catalogs ideas dynamite scale subjects can ever possibly build lifetime Zenith Aviation Books North Branch MN 55056 offers largest selec tions aviation titles am familiar Zenith strictly dealer handles practically best known titles series currently have 22-page cata log $100 lists books dividually along short descriptive paragraph about contents extremely helpful catalog Zenith gives excellent service Historic Aviation 3850 Coronation Rd Eagan MN 55122 also deals exclu sively aviation publications han dles best known publishing com panies titles Ive found service excellent friendly may have general catalog although cant find moment have several different single page sheets listing prices terms Id suggest sending stamped self-addressed envelope request information Armed Forces Book Co 21 Dahlia Lane Deer Park NY 11729 lists diverse selection books dealing air craft civilian military arms armor military ships other stores have seen large catalog costs $1 like Zeniths lists book along short description its con tents special note fact Armed Forces Book Co still have availa ble some now out-of-print hard find Profile Publications series interested ask list available Profile Publications send catalog Milbooks PO Box 92 Stanton CA 90680 another dealer handles types aircraft military books Send stamped self-addressed envelope information ero Publishers Inc 329 W Aviation Continued page 94 August1978 31 North American B-25H Mitchell makes good flying scale twin operating flaps bomb doors bombs throttled Enya 35 engines full rivet detail Built Bob Baldus sports such extra detailing machine guns cannons Took sixth Sport Scale Dayton Nats Also handiwork Bob Baldus large Spirit St Louis made Royal Products kit Covered silk dope powered OS 60 driving Top Flite 13-5-1/2 propeller Flying Open Scale 1976 Nationals Baldus took third Ailerons appear adjustable GET ORGANIZED s set 4 slardy ties haNs over 4 years yosr tavoste 5 Ii magazrees 4 MAG FILES $495 Seed 5456 ptss SI 00 postage haedtig N DOM INOUSTRES PO BOX 388-K DOVER NH 03820 KITSOPLANSOACCESSORIES BABY ACEP-NUT KITS N BEARINGS BROWN CO-2 ENGINES COMPLETE CATALOG REAL JAPANESE TIISuCPROPj KIT $425 MANY CARD TO FIND ITEMS he*-Pb4tw W BOX 2498LA MESA CALIF 92041 modification give Jet Ranger fliers something just little different Bill Watson vice-president NCHA North Carolina Helicopter Assoc original members NCHA shown group photo first meet Greensboro NC Also NCHA schematic transmitter modification allow mixing throttle collective modification developed Mike Miles Durham NC Mikes modifica tion will work Kraft series 76-78 5channel transmitters will possibly work some other makes although tested modification will eliminate need Y connector between throttle collective servos offers advantage collective trim modify transmitter remove wire center lug retract switch 5th channel wire may attached directly center tap throttle pot collective trim desired Collective trim added addition miniature -watt 5K wirewound pot standard Kraft trim lever part #901 148 mounted convenient location pot electrically connected series fifth channel wire retract switch center tap existing throttle pot 470-ohm resistor placed series throttle channel lead center tap Two connections have made center tap throttle pot 1 5K pot series fifth channel 2 470-ohm resistor series throttle channel set up servos should re-centered using throttle stick pot collective trim pot ie sticks trims readjusted center tightened pot shafts operation circuit will increase servo travel five six degrees either side center Throttle throttle trim will affect both throttle collective col lective trim will affect collective channel final note Somewhere out someone flying hot Red Heli-boy Wolitz-modified EK radio say hot because helicopter radio other modeling articles stolen Walt Schoonards car Perry Georgia few weeks ago find information leading recovery stolen articles Im sure Walt would appreciate David R Chesney Rt 9 Box 621A Greensboro NC 27407 Tiny Sailplane/Jones continued page 30 sharp trailing edge control surfaces can deflected several degrees before im pinge high energy air Cut stabilator soft Vs sheet inset 1/16inside-diameter aluminum tube balsa correct locations Match stabilator horn rudder made three pieces blade driver horn Assemble attach fin used hinge points Finish prototype wing stabilator covered transparent orange top black bottom pod covered black fin good paint finish would easier pod boom canopy white coverings Super Monokote Equipment Installation Care must ex ercised fitting radio model large canopy helps make easy two-channel Cannon Tini-Block fit stock wire plugs switch Yes switch mounted under canopy product review product review product review ~1 40-Size Engine Mount Fourmost con tinuation successful wrap-around de sign 049 Airfla Mount Glas-filled nylon compound provides vibration-free design molded front end reduces aerodynamic drag around engine 2% firewall face 40 mount ideal Quicky-type aircraft Price $525 Fourmost Racing Products 4040 24th Ave Forest Grove OR 97116 product review product review product review next battery right side antenna routed out pod right side between frames 5 6 through small plastic tube supported top fin plug between switch receiver should above deck ease re-charging placed right side adjacent receiver lead runs switch aft under servo receiver up right side top deck plug placed just front canted frame beside re ceiver lead receiver comes out through deck center forward receiver runs center around right corner re ceiver aft switch lead servo receiver leads pass left re ceiver plugs behind receiver Flying center gravity shown sat isfactory slope flying may want farther aft thermal flying Hand launches 30 feet possible putting fingers behind wing center sec tion High-starts light rubber hand tows easily accomplished familiar characteristics model add winglets im provement flight should evident winglets place prototype glide turn characteristics both im proved Although winglets may look vulnerable arent prone flying/ landing damage However vul nerable during transportation storage Conclusion hope enjoy version much enjoy feel con figuration could scaled twice size gradual increase performance due scale factor Let hear about model Write Dave Jones 5621 Michelle Drive Tor rence CA 90503 CL Scale/Gretz continued page 31 Rd Fallbrook CA 92028 claims pro duce sell aviation aerospace books other publisher world know produce noteworthy books including well known Aero Series profile-type book lets covering famous WW2 military aircraft free catalog shows over 200 books phases aviation space books also available mail-order book dealers Ive already mentioned Sentry Books 10718 White Oak Ave Granada Hills CA 91344 another book publisher can buy directly line aviation books isnt very large yet Ive found book have got ten exceptional quality photos drawings historical accuracy manu facture Most authors interna tionally known experts subjects Sentry also publishes two bi-monthly mag azines called Wings Airpower 94 Model Aviation devoted in-depth histories several dif ferent aircraft issue accu racy articles black-andwhite color photos often previously unpublished make two magazines extremely interesting useful reading Send stamped self-addressed envelope information Historical Aviation Album PO Box 33 Temple City CA 91780 produces continuing series 8 aperbound books called Historical Aviation Al bums now up vol 15 contains several in-depth semi-technical articles aircraft personalities made aero nautical history article includes clearly written text photos fine-line 3-view scale drawings also produce several single subject books similar size format part contin uing Album series Ive found pub lications second-to-none accuracy quality 3-view drawings available separately large 17 X 22 size Got Screw Loose cowling model held place metal screws threading themselves plywood hardwood mounting blocks threads blocks tend wear out after taking screws out dozen times Hot Stuff similar cyanoacrylate adhesives can eliminate problem Its best give threads Hot Stuff treat ment during construction before model painted exposed fuel First mount engine cowl normal threading cowl mounting screws wood mounting blocks remove screws cowl Hold fuselage mounting block level hole straight down Fill threaded hole Hot Stuff let soak before tip ping level same holes Let set overnight before putting screws back holes cowl could become permanently mounted Profile Publications Most have probably heard maybe own some colorful now out-ofprint aircraft historical series printed England 1960s early 1970s series consisted 258 individual aircraft profiles subject list included virtually worlds prominent military aircraft since WW Typically Profile up 12 pages long covered subject aircrafts origin devel opment use photos color scale drawings historical text Air craft Profile series pioneered mat now see reflected other similar series different publishers recent years full-page color scale drawings Profile especially well done seem ideally suited to days generation Sport Scale models rules entire series also sold set 14 bound volumes may won der bring up since have out print several years reason some Profiles yet sold out two sources know still have good stock mentioned earlier Armed Forces Book Co can get list Big Props Available diameters up 20 in assorted pitches Top Flites new large-sized props made rock-hard straight-grained maple stated accurately bal anced Prices range $595 16-in dia meter 4-or 6-in pitch $695 18 6- 8- 10-in pitch $795 20 in 6- 8- 10-in pitch Top Flite Models Inc 1901 N Narragansett Ave Chicago IL 60639 product review product review product review what have can also get list di rectly Profile Publications Limited Dial House 6 Park St Windsor Berk shire 5L4 UU England Youd better soon PLEASE DO NOT FLY NEAR POWER LINES Mike Gretz Box 162 Montezuma IA 50171 CL Navy Carrier/Perry continued page 32 thus may increase drag important thing consider re garding fuselage size large enough hold easily equipment goes model large fuselage can built same weight smaller actually stronger summarize last few paragraphs build model large enough fly well choose subject has fuselage big enough make equipment installation easy next Class II way will have fuselage 6 inches deep 4/4 inch es wide Profile Carrier course fuselage just holds engine wing tail together everything hanging out breeze small fuselage dimensions desirable reduce weight critical factor selecting scale subject designing non-scale Profile Carrier model size loca tion horizontal tail tail must able generate enough moment stall wing can done smaller tail long distance wing larger tail set close wing factor best predicts effec tiveness horizontal tail apol ogies aeronautical engineering pro fessors extensive simplification tail volume ratio Vt Sw X MAC tail area X tail moment arm wing area X mean aerodynamic chord wing tail areas equation self-explanatory mean aerody August1978 95 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground Support AMA Price $3995 GREATEST R/C BASIC TRAINE1W Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold them- Thr nost kit per SHALL WE SAY MORE Andrews Aircraft Model Co Inc US Rte t& North Sc Topstirld Mass 01983 887-8541 dollar bar err nrndut review oroduct review oroduct review
Edition: Model Aviation - 1978/08
Page Numbers: 31, 94, 95
Control Line. Scale Mike Gretz WHILE dont recommend handing overworked scale judge multi-volume library subject aircraft books can valuable source high-quality ten rare photos drawings scale re search documentation Parts book relating subject aircraft nec essary presentation either can prominently marked masked out book removed entirely inclusion presentation folder Most bookstores seem stock very few type aviation books helpful scale builder could surprised learn simply sending few catalogs hun dreds aviation related books other publications available us fact several mail-order book compan ies deal exclusively aviation sub jects list titles catalogs seems almost endless ranges short profile type booklets large hard bound volumes can get books dealing specific airplane families air planes historic aviation events eras aircraft companies designers addi tion mail-order book dealers several publishers aviation books can buy directly also have informative catalogs month Im going list sour ces aviation publications am fa miliar use frequently real ize list probably incomplete know other good sources can recommend let us hear Judging experiences lot scale-inclined modelers arent aware what available thus someday scale project may never get off ground sending some book catalogs may find informa tion have needing small catch will probably find browsing through catalogs ideas dynamite scale subjects can ever possibly build lifetime Zenith Aviation Books North Branch MN 55056 offers largest selec tions aviation titles am familiar Zenith strictly dealer handles practically best known titles series currently have 22-page cata log $100 lists books dividually along short descriptive paragraph about contents extremely helpful catalog Zenith gives excellent service Historic Aviation 3850 Coronation Rd Eagan MN 55122 also deals exclu sively aviation publications han dles best known publishing com panies titles Ive found service excellent friendly may have general catalog although cant find moment have several different single page sheets listing prices terms Id suggest sending stamped self-addressed envelope request information Armed Forces Book Co 21 Dahlia Lane Deer Park NY 11729 lists diverse selection books dealing air craft civilian military arms armor military ships other stores have seen large catalog costs $1 like Zeniths lists book along short description its con tents special note fact Armed Forces Book Co still have availa ble some now out-of-print hard find Profile Publications series interested ask list available Profile Publications send catalog Milbooks PO Box 92 Stanton CA 90680 another dealer handles types aircraft military books Send stamped self-addressed envelope information ero Publishers Inc 329 W Aviation Continued page 94 August1978 31 North American B-25H Mitchell makes good flying scale twin operating flaps bomb doors bombs throttled Enya 35 engines full rivet detail Built Bob Baldus sports such extra detailing machine guns cannons Took sixth Sport Scale Dayton Nats Also handiwork Bob Baldus large Spirit St Louis made Royal Products kit Covered silk dope powered OS 60 driving Top Flite 13-5-1/2 propeller Flying Open Scale 1976 Nationals Baldus took third Ailerons appear adjustable GET ORGANIZED s set 4 slardy ties haNs over 4 years yosr tavoste 5 Ii magazrees 4 MAG FILES $495 Seed 5456 ptss SI 00 postage haedtig N DOM INOUSTRES PO BOX 388-K DOVER NH 03820 KITSOPLANSOACCESSORIES BABY ACEP-NUT KITS N BEARINGS BROWN CO-2 ENGINES COMPLETE CATALOG REAL JAPANESE TIISuCPROPj KIT $425 MANY CARD TO FIND ITEMS he*-Pb4tw W BOX 2498LA MESA CALIF 92041 modification give Jet Ranger fliers something just little different Bill Watson vice-president NCHA North Carolina Helicopter Assoc original members NCHA shown group photo first meet Greensboro NC Also NCHA schematic transmitter modification allow mixing throttle collective modification developed Mike Miles Durham NC Mikes modifica tion will work Kraft series 76-78 5channel transmitters will possibly work some other makes although tested modification will eliminate need Y connector between throttle collective servos offers advantage collective trim modify transmitter remove wire center lug retract switch 5th channel wire may attached directly center tap throttle pot collective trim desired Collective trim added addition miniature -watt 5K wirewound pot standard Kraft trim lever part #901 148 mounted convenient location pot electrically connected series fifth channel wire retract switch center tap existing throttle pot 470-ohm resistor placed series throttle channel lead center tap Two connections have made center tap throttle pot 1 5K pot series fifth channel 2 470-ohm resistor series throttle channel set up servos should re-centered using throttle stick pot collective trim pot ie sticks trims readjusted center tightened pot shafts operation circuit will increase servo travel five six degrees either side center Throttle throttle trim will affect both throttle collective col lective trim will affect collective channel final note Somewhere out someone flying hot Red Heli-boy Wolitz-modified EK radio say hot because helicopter radio other modeling articles stolen Walt Schoonards car Perry Georgia few weeks ago find information leading recovery stolen articles Im sure Walt would appreciate David R Chesney Rt 9 Box 621A Greensboro NC 27407 Tiny Sailplane/Jones continued page 30 sharp trailing edge control surfaces can deflected several degrees before im pinge high energy air Cut stabilator soft Vs sheet inset 1/16inside-diameter aluminum tube balsa correct locations Match stabilator horn rudder made three pieces blade driver horn Assemble attach fin used hinge points Finish prototype wing stabilator covered transparent orange top black bottom pod covered black fin good paint finish would easier pod boom canopy white coverings Super Monokote Equipment Installation Care must ex ercised fitting radio model large canopy helps make easy two-channel Cannon Tini-Block fit stock wire plugs switch Yes switch mounted under canopy product review product review product review ~1 40-Size Engine Mount Fourmost con tinuation successful wrap-around de sign 049 Airfla Mount Glas-filled nylon compound provides vibration-free design molded front end reduces aerodynamic drag around engine 2% firewall face 40 mount ideal Quicky-type aircraft Price $525 Fourmost Racing Products 4040 24th Ave Forest Grove OR 97116 product review product review product review next battery right side antenna routed out pod right side between frames 5 6 through small plastic tube supported top fin plug between switch receiver should above deck ease re-charging placed right side adjacent receiver lead runs switch aft under servo receiver up right side top deck plug placed just front canted frame beside re ceiver lead receiver comes out through deck center forward receiver runs center around right corner re ceiver aft switch lead servo receiver leads pass left re ceiver plugs behind receiver Flying center gravity shown sat isfactory slope flying may want farther aft thermal flying Hand launches 30 feet possible putting fingers behind wing center sec tion High-starts light rubber hand tows easily accomplished familiar characteristics model add winglets im provement flight should evident winglets place prototype glide turn characteristics both im proved Although winglets may look vulnerable arent prone flying/ landing damage However vul nerable during transportation storage Conclusion hope enjoy version much enjoy feel con figuration could scaled twice size gradual increase performance due scale factor Let hear about model Write Dave Jones 5621 Michelle Drive Tor rence CA 90503 CL Scale/Gretz continued page 31 Rd Fallbrook CA 92028 claims pro duce sell aviation aerospace books other publisher world know produce noteworthy books including well known Aero Series profile-type book lets covering famous WW2 military aircraft free catalog shows over 200 books phases aviation space books also available mail-order book dealers Ive already mentioned Sentry Books 10718 White Oak Ave Granada Hills CA 91344 another book publisher can buy directly line aviation books isnt very large yet Ive found book have got ten exceptional quality photos drawings historical accuracy manu facture Most authors interna tionally known experts subjects Sentry also publishes two bi-monthly mag azines called Wings Airpower 94 Model Aviation devoted in-depth histories several dif ferent aircraft issue accu racy articles black-andwhite color photos often previously unpublished make two magazines extremely interesting useful reading Send stamped self-addressed envelope information Historical Aviation Album PO Box 33 Temple City CA 91780 produces continuing series 8 aperbound books called Historical Aviation Al bums now up vol 15 contains several in-depth semi-technical articles aircraft personalities made aero nautical history article includes clearly written text photos fine-line 3-view scale drawings also produce several single subject books similar size format part contin uing Album series Ive found pub lications second-to-none accuracy quality 3-view drawings available separately large 17 X 22 size Got Screw Loose cowling model held place metal screws threading themselves plywood hardwood mounting blocks threads blocks tend wear out after taking screws out dozen times Hot Stuff similar cyanoacrylate adhesives can eliminate problem Its best give threads Hot Stuff treat ment during construction before model painted exposed fuel First mount engine cowl normal threading cowl mounting screws wood mounting blocks remove screws cowl Hold fuselage mounting block level hole straight down Fill threaded hole Hot Stuff let soak before tip ping level same holes Let set overnight before putting screws back holes cowl could become permanently mounted Profile Publications Most have probably heard maybe own some colorful now out-ofprint aircraft historical series printed England 1960s early 1970s series consisted 258 individual aircraft profiles subject list included virtually worlds prominent military aircraft since WW Typically Profile up 12 pages long covered subject aircrafts origin devel opment use photos color scale drawings historical text Air craft Profile series pioneered mat now see reflected other similar series different publishers recent years full-page color scale drawings Profile especially well done seem ideally suited to days generation Sport Scale models rules entire series also sold set 14 bound volumes may won der bring up since have out print several years reason some Profiles yet sold out two sources know still have good stock mentioned earlier Armed Forces Book Co can get list Big Props Available diameters up 20 in assorted pitches Top Flites new large-sized props made rock-hard straight-grained maple stated accurately bal anced Prices range $595 16-in dia meter 4-or 6-in pitch $695 18 6- 8- 10-in pitch $795 20 in 6- 8- 10-in pitch Top Flite Models Inc 1901 N Narragansett Ave Chicago IL 60639 product review product review product review what have can also get list di rectly Profile Publications Limited Dial House 6 Park St Windsor Berk shire 5L4 UU England Youd better soon PLEASE DO NOT FLY NEAR POWER LINES Mike Gretz Box 162 Montezuma IA 50171 CL Navy Carrier/Perry continued page 32 thus may increase drag important thing consider re garding fuselage size large enough hold easily equipment goes model large fuselage can built same weight smaller actually stronger summarize last few paragraphs build model large enough fly well choose subject has fuselage big enough make equipment installation easy next Class II way will have fuselage 6 inches deep 4/4 inch es wide Profile Carrier course fuselage just holds engine wing tail together everything hanging out breeze small fuselage dimensions desirable reduce weight critical factor selecting scale subject designing non-scale Profile Carrier model size loca tion horizontal tail tail must able generate enough moment stall wing can done smaller tail long distance wing larger tail set close wing factor best predicts effec tiveness horizontal tail apol ogies aeronautical engineering pro fessors extensive simplification tail volume ratio Vt Sw X MAC tail area X tail moment arm wing area X mean aerodynamic chord wing tail areas equation self-explanatory mean aerody August1978 95 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground Support AMA Price $3995 GREATEST R/C BASIC TRAINE1W Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold them- Thr nost kit per SHALL WE SAY MORE Andrews Aircraft Model Co Inc US Rte t& North Sc Topstirld Mass 01983 887-8541 dollar bar err nrndut review oroduct review oroduct review
Edition: Model Aviation - 1978/08
Page Numbers: 31, 94, 95
Control Line. Scale Mike Gretz WHILE dont recommend handing overworked scale judge multi-volume library subject aircraft books can valuable source high-quality ten rare photos drawings scale re search documentation Parts book relating subject aircraft nec essary presentation either can prominently marked masked out book removed entirely inclusion presentation folder Most bookstores seem stock very few type aviation books helpful scale builder could surprised learn simply sending few catalogs hun dreds aviation related books other publications available us fact several mail-order book compan ies deal exclusively aviation sub jects list titles catalogs seems almost endless ranges short profile type booklets large hard bound volumes can get books dealing specific airplane families air planes historic aviation events eras aircraft companies designers addi tion mail-order book dealers several publishers aviation books can buy directly also have informative catalogs month Im going list sour ces aviation publications am fa miliar use frequently real ize list probably incomplete know other good sources can recommend let us hear Judging experiences lot scale-inclined modelers arent aware what available thus someday scale project may never get off ground sending some book catalogs may find informa tion have needing small catch will probably find browsing through catalogs ideas dynamite scale subjects can ever possibly build lifetime Zenith Aviation Books North Branch MN 55056 offers largest selec tions aviation titles am familiar Zenith strictly dealer handles practically best known titles series currently have 22-page cata log $100 lists books dividually along short descriptive paragraph about contents extremely helpful catalog Zenith gives excellent service Historic Aviation 3850 Coronation Rd Eagan MN 55122 also deals exclu sively aviation publications han dles best known publishing com panies titles Ive found service excellent friendly may have general catalog although cant find moment have several different single page sheets listing prices terms Id suggest sending stamped self-addressed envelope request information Armed Forces Book Co 21 Dahlia Lane Deer Park NY 11729 lists diverse selection books dealing air craft civilian military arms armor military ships other stores have seen large catalog costs $1 like Zeniths lists book along short description its con tents special note fact Armed Forces Book Co still have availa ble some now out-of-print hard find Profile Publications series interested ask list available Profile Publications send catalog Milbooks PO Box 92 Stanton CA 90680 another dealer handles types aircraft military books Send stamped self-addressed envelope information ero Publishers Inc 329 W Aviation Continued page 94 August1978 31 North American B-25H Mitchell makes good flying scale twin operating flaps bomb doors bombs throttled Enya 35 engines full rivet detail Built Bob Baldus sports such extra detailing machine guns cannons Took sixth Sport Scale Dayton Nats Also handiwork Bob Baldus large Spirit St Louis made Royal Products kit Covered silk dope powered OS 60 driving Top Flite 13-5-1/2 propeller Flying Open Scale 1976 Nationals Baldus took third Ailerons appear adjustable GET ORGANIZED s set 4 slardy ties haNs over 4 years yosr tavoste 5 Ii magazrees 4 MAG FILES $495 Seed 5456 ptss SI 00 postage haedtig N DOM INOUSTRES PO BOX 388-K DOVER NH 03820 KITSOPLANSOACCESSORIES BABY ACEP-NUT KITS N BEARINGS BROWN CO-2 ENGINES COMPLETE CATALOG REAL JAPANESE TIISuCPROPj KIT $425 MANY CARD TO FIND ITEMS he*-Pb4tw W BOX 2498LA MESA CALIF 92041 modification give Jet Ranger fliers something just little different Bill Watson vice-president NCHA North Carolina Helicopter Assoc original members NCHA shown group photo first meet Greensboro NC Also NCHA schematic transmitter modification allow mixing throttle collective modification developed Mike Miles Durham NC Mikes modifica tion will work Kraft series 76-78 5channel transmitters will possibly work some other makes although tested modification will eliminate need Y connector between throttle collective servos offers advantage collective trim modify transmitter remove wire center lug retract switch 5th channel wire may attached directly center tap throttle pot collective trim desired Collective trim added addition miniature -watt 5K wirewound pot standard Kraft trim lever part #901 148 mounted convenient location pot electrically connected series fifth channel wire retract switch center tap existing throttle pot 470-ohm resistor placed series throttle channel lead center tap Two connections have made center tap throttle pot 1 5K pot series fifth channel 2 470-ohm resistor series throttle channel set up servos should re-centered using throttle stick pot collective trim pot ie sticks trims readjusted center tightened pot shafts operation circuit will increase servo travel five six degrees either side center Throttle throttle trim will affect both throttle collective col lective trim will affect collective channel final note Somewhere out someone flying hot Red Heli-boy Wolitz-modified EK radio say hot because helicopter radio other modeling articles stolen Walt Schoonards car Perry Georgia few weeks ago find information leading recovery stolen articles Im sure Walt would appreciate David R Chesney Rt 9 Box 621A Greensboro NC 27407 Tiny Sailplane/Jones continued page 30 sharp trailing edge control surfaces can deflected several degrees before im pinge high energy air Cut stabilator soft Vs sheet inset 1/16inside-diameter aluminum tube balsa correct locations Match stabilator horn rudder made three pieces blade driver horn Assemble attach fin used hinge points Finish prototype wing stabilator covered transparent orange top black bottom pod covered black fin good paint finish would easier pod boom canopy white coverings Super Monokote Equipment Installation Care must ex ercised fitting radio model large canopy helps make easy two-channel Cannon Tini-Block fit stock wire plugs switch Yes switch mounted under canopy product review product review product review ~1 40-Size Engine Mount Fourmost con tinuation successful wrap-around de sign 049 Airfla Mount Glas-filled nylon compound provides vibration-free design molded front end reduces aerodynamic drag around engine 2% firewall face 40 mount ideal Quicky-type aircraft Price $525 Fourmost Racing Products 4040 24th Ave Forest Grove OR 97116 product review product review product review next battery right side antenna routed out pod right side between frames 5 6 through small plastic tube supported top fin plug between switch receiver should above deck ease re-charging placed right side adjacent receiver lead runs switch aft under servo receiver up right side top deck plug placed just front canted frame beside re ceiver lead receiver comes out through deck center forward receiver runs center around right corner re ceiver aft switch lead servo receiver leads pass left re ceiver plugs behind receiver Flying center gravity shown sat isfactory slope flying may want farther aft thermal flying Hand launches 30 feet possible putting fingers behind wing center sec tion High-starts light rubber hand tows easily accomplished familiar characteristics model add winglets im provement flight should evident winglets place prototype glide turn characteristics both im proved Although winglets may look vulnerable arent prone flying/ landing damage However vul nerable during transportation storage Conclusion hope enjoy version much enjoy feel con figuration could scaled twice size gradual increase performance due scale factor Let hear about model Write Dave Jones 5621 Michelle Drive Tor rence CA 90503 CL Scale/Gretz continued page 31 Rd Fallbrook CA 92028 claims pro duce sell aviation aerospace books other publisher world know produce noteworthy books including well known Aero Series profile-type book lets covering famous WW2 military aircraft free catalog shows over 200 books phases aviation space books also available mail-order book dealers Ive already mentioned Sentry Books 10718 White Oak Ave Granada Hills CA 91344 another book publisher can buy directly line aviation books isnt very large yet Ive found book have got ten exceptional quality photos drawings historical accuracy manu facture Most authors interna tionally known experts subjects Sentry also publishes two bi-monthly mag azines called Wings Airpower 94 Model Aviation devoted in-depth histories several dif ferent aircraft issue accu racy articles black-andwhite color photos often previously unpublished make two magazines extremely interesting useful reading Send stamped self-addressed envelope information Historical Aviation Album PO Box 33 Temple City CA 91780 produces continuing series 8 aperbound books called Historical Aviation Al bums now up vol 15 contains several in-depth semi-technical articles aircraft personalities made aero nautical history article includes clearly written text photos fine-line 3-view scale drawings also produce several single subject books similar size format part contin uing Album series Ive found pub lications second-to-none accuracy quality 3-view drawings available separately large 17 X 22 size Got Screw Loose cowling model held place metal screws threading themselves plywood hardwood mounting blocks threads blocks tend wear out after taking screws out dozen times Hot Stuff similar cyanoacrylate adhesives can eliminate problem Its best give threads Hot Stuff treat ment during construction before model painted exposed fuel First mount engine cowl normal threading cowl mounting screws wood mounting blocks remove screws cowl Hold fuselage mounting block level hole straight down Fill threaded hole Hot Stuff let soak before tip ping level same holes Let set overnight before putting screws back holes cowl could become permanently mounted Profile Publications Most have probably heard maybe own some colorful now out-ofprint aircraft historical series printed England 1960s early 1970s series consisted 258 individual aircraft profiles subject list included virtually worlds prominent military aircraft since WW Typically Profile up 12 pages long covered subject aircrafts origin devel opment use photos color scale drawings historical text Air craft Profile series pioneered mat now see reflected other similar series different publishers recent years full-page color scale drawings Profile especially well done seem ideally suited to days generation Sport Scale models rules entire series also sold set 14 bound volumes may won der bring up since have out print several years reason some Profiles yet sold out two sources know still have good stock mentioned earlier Armed Forces Book Co can get list Big Props Available diameters up 20 in assorted pitches Top Flites new large-sized props made rock-hard straight-grained maple stated accurately bal anced Prices range $595 16-in dia meter 4-or 6-in pitch $695 18 6- 8- 10-in pitch $795 20 in 6- 8- 10-in pitch Top Flite Models Inc 1901 N Narragansett Ave Chicago IL 60639 product review product review product review what have can also get list di rectly Profile Publications Limited Dial House 6 Park St Windsor Berk shire 5L4 UU England Youd better soon PLEASE DO NOT FLY NEAR POWER LINES Mike Gretz Box 162 Montezuma IA 50171 CL Navy Carrier/Perry continued page 32 thus may increase drag important thing consider re garding fuselage size large enough hold easily equipment goes model large fuselage can built same weight smaller actually stronger summarize last few paragraphs build model large enough fly well choose subject has fuselage big enough make equipment installation easy next Class II way will have fuselage 6 inches deep 4/4 inch es wide Profile Carrier course fuselage just holds engine wing tail together everything hanging out breeze small fuselage dimensions desirable reduce weight critical factor selecting scale subject designing non-scale Profile Carrier model size loca tion horizontal tail tail must able generate enough moment stall wing can done smaller tail long distance wing larger tail set close wing factor best predicts effec tiveness horizontal tail apol ogies aeronautical engineering pro fessors extensive simplification tail volume ratio Vt Sw X MAC tail area X tail moment arm wing area X mean aerodynamic chord wing tail areas equation self-explanatory mean aerody August1978 95 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground Support AMA Price $3995 GREATEST R/C BASIC TRAINE1W Design & Kit ALL TIME Ask over 25000 satisfied builders H-BAY dealers sold them- Thr nost kit per SHALL WE SAY MORE Andrews Aircraft Model Co Inc US Rte t& North Sc Topstirld Mass 01983 887-8541 dollar bar err nrndut review oroduct review oroduct review