Conirol Soaring Dan Pruss IF YOURE newcomer sport RC Soaring can get questions answered recent publication called Build Fly Radio Controlled Gliders Jack E Schroder Its available through local hobby shop can order direct Kalmbach Books 1027 North Seventh Street Milwaukee WI 53233 sells $350 arent near club its fatherly advice first building flying project Schroders book will tell about building launching to keep right side up Looking inexpensive set awards contests club giveaways Two items come mind first will also answer oftenraised question can get parachute launching system answer White Company Jim White has turning highquality chutes over five years can pick own color pattern seven colorsred white blue green black orange yellow chutes have used past two USA F3B teams come three sizesSi 98 126 sq smallest still larger minimum FAT requirements sizes made up eight panels 75-lb test shroud lines Jim will also personalize chutes send him club logo name AMA number LSF number etc Chutes $10 five $45 have ever tried making own probably found out timewise quicker make three-piece suit Write White Co 19372 Worchester Lane Huntington Beach CA 92646 other idea club awards contest prizesand wont drain club treasury set LSF glasses Two sizes available Left Team Eole France seen French FAI team-selection meet 1980 Ships feature glass-skinned balsa-over-foam wings Right Patrick Nicaud assistantshe first-placer French team Check smooth-flowing lines design typical European approach F3B design 36 Model Aviation OOT ERON RD RATIO lOOT -40 RD T RATIO ID WING/STAB R ARM B FACTOR JG MASS LOADING LOADING low-ball 10-oz hi-nail 12-oz Ihe LSF sizeis uding shipping Write logo frost-etched set sixeither Warren Tiahrt LSF Secretary 7647 Twilight Len jean uiauoe Bosquetwith new original design F3B sailplane isthe designerof Axel appeared column August1979 Right close took sleek bird long greenhouse canopy allows easy access control linkages Court Clarkston MI 48016 Theyre great conversation-starter youre nonmodeling friends As long Im coming up ideas spend money heres nostalgia buffs well Sailplane builder wants add color drab workshop wall An artist name Bill Neale work has appeared Road Track Flying has done montage Hawley Bowlus pre-Worid War II contributions Included multi-colored poster drawings Baby Albatross Super Albatross Dragonfly XCG-16 cargo glider featured twin boom designed around lifting fuselage Also illustrated Bowlus Road Chief alumi num aerodynamic travel-trailer designed 30s would look good highways today poster measures 18-in x 27-in can obtained $6 Mike Shoen 6719 East Malcomb Paradise Valley AZ 85253 F3B World Championships July 12-17 1981 USA recent ClAM FAI head quarters Paris USA selected third F3B World Championships Details should worked out time read plan now San Francisco area July 12-17 new Soaring F3B competi tion can get familiar tasks flavor international competition readingthe F3B rules page 102 et seq AMAs 1980-81 Official Model Aircraft Regulations have following pages over last two World Championships can see first hand fliers planes general different design spectrum used seeing straight Duration contests Most European teams have already selected judging numbers have fallen interest generated could standingroom-only F3B arena July Speed times have recorded under nine seconds Continued page 103 CAP YOUR CLUB LOGO R II II ULet Knowl II IWho Club u II Member AreI II Low Minimum Reasonable Prices I Inqu e abouCall Write ou customr p nted TEETOP DOG Miam FL 3315 SHIRTS too SW 75th Ave 305 261 Good Servicel Great RC Clubsi 4PATTERN AND 4 HIGH SPEED PROPELLERS Dii AIRSCREW CUSTOM HIGH PERFORMANCE MAPLE PROPELLERS Propeller designed using symmetrical profile Individually precision hand balanced Accurale airfoil pitch Only high quality straight grain Eastern Maple used 5/ X 6% FORMULA 1 10 X 6,5oooct 11X7 11X712 11X8 CUSTOM DESIGN UPON REOUEST DiV PRODUCTS Add StOO r 00, fO SUSO CRYSTAL COURTPostage Rod fl,dljg SANTA Rosa SARA PROSE TOT RAD-SR5ACA SEN ADD 5% TAR April 1981 37 ately Part II will appear next month December written tem perature outside just over 10 degrees thats Celsius next chapter continuing story will have wait avail ability both equipment decent weather hope information presented will use will add soon possible RC Aerobatics/Van Putte Continued page 33 ing comments about flying high altitude has some interesting news us fly near sea level Randy wrote Im compelled send another side altitude story elevation 6000 ft used Lanier Sb Comets 35s Falcon 56s 19s 25s learn sans instructors five years back Theres no lack power fact Sb Comet will fly Enya 35 sleeve turned 1800 1 did flew poorly sure flying Senior Falcons Lanier Comets 40s 60s Sig Kadets 30s 35s Some 40 60 sport birds fly better 60s heavy built right fly fine 40 will admit altitude affects aircraft per formance might throw contest flier off game try play big motor altitude difference too heavy have lot guys learning fly 25 35 trainer 40 45 hot ship beginner Trims change change throttle land hot guys Florida California wher ever bring birds fly Rockies Strips scarce west side flying great Thanks inside story Randy Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Soaring/Pruss Continued page 37 least three British fliers still process selecting team group Austria Germany Switzer land have formed 1SF International Soaring Forum weekend before ClAM over 80 modelers above-mentioned countries met discussed design construction techniques airfoils 68-page report resulted report three-view Spartakus presented month thanks Hansruedi Schlapfer Switzerland Years ago three-task concept came scene USAs approach treat distance task involved thermal ing order get sufficient altitude turn get maximum distance during four-minute flight Most Europeans went other route began design slick machines would fly 12-lap course just virtue slippery lines Designers Spattakus boast LID nearly 20/1 ratio doesnt jostle 10-minute duration design envelope ponder standard 150-meter launch straightline distance 3000 meters Orwell over mile can flown no-wind condition Put F3B Distance-task perspective means nearly 20 laps could flown Wing construction alone could feature design article Ill pass just few points now Construction similar mentioned Continued page 104 MEW oo pR@ U3 Quadra McCulloch Super Hustler new prop hub will fit any e engines ones 5/1 6-24 shaft Bolt plate serves drill jig aod tapped spinner bolt Only $1995ROUSH MFG Dealer ributorP0 Box 251 Inquiries WelcomeSandyville Ohio 44671 C Catalog entie tine airplane Control line model lids P C scale Trainer kits boat model kits accessories etc SO enciosee Name __________________________ ______________________________ City Free-Flight fl/C Assist SUPER BRIGADIER 66 Plan SetSpanFo 15 ta 25 Pawor 2-4 channel 8/C Old favorite #RCFF 2 $995 RIC version has ailerons SUPER BRIGADIER 44 1 /2A A/C Fre-Flight AssistPlan 44 Span qor A/C Training#RC Set $ Prices tor Complete Plans Sub Assembly Detailed Parts Lists Add $200 tor Mailing Tube Send $100 retundable tor Complete Information Kits some really great things come S.: April 1981 103 STEELING MODELS BUILDING 3620 G StreetPhiladelphia Pa 19134 BASEBALL CAPSINTRODUCTORY OFFER See club emblem printed full color comfortable sport caps Order Now $500 ea Send catalog & quantity disc ______e 2021-B THIRD STREET RIVERSIDE CA 92507 NTRODUCING TheRJL K61 R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0 - ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 PRACTICE AEROBA TICS ON PENNIES INSTEAD OF DOLLARS INTRODUCING THE MISER FOR 1981 R/C SPORT FLYER DELUXE Four channel radio mixer rejuired flaperons Stable smooth flying characteristics Responds like controline aerobatic model Youll love MISER ECONOMY - plus PERFORMANCE -plus STYLE-on 15 BLAINES PLANES & RIC Box 109A Rt 1 Fremont IN 46737 COMING COMING COMING COMING 0 PBY-5 Catalina 104 Wing 64 Glass Fuselage Gs PRODUCTS 1010 Gratiot Box 161Z 0 COMING Marysvile MI 48040 COMING last months column regarding Meyer Guttmans LS-3 Basically wing hollowbut layered glass sheet balsa top bottom skins Molds shaped using templates rib section initially plotted five times desired chord size Reduced five times increased accuracy plot left right wings close match humanly possible make might regard overkill its probably Swiss chrono graph costs 20 times timepiece can buy drugstore As attention given matched wings think bird youre flying now trimmed try after few adjustments have satisfied its hands-off performance take safe altitude ease little down stick notice tracks builds up speed Chances wont heading same direction aimed initially say can correct ALL N EW ASTRO STAND 4060 PLANES AND ASTRO PAINT STAND Ultra light durable stands tar holding fuselage wing painting far holding plane up off ground tuning engine pits 1/4 Scale Astra stands also Write call RUSH MODEL PRODUCTS 3242 Went Cad. Road Phoenix AZ 050200 002 003-2115 DEALER INDUIRIES INVITED control deflections fine youre increasing drag deflections concern designers planes like Spartakus overcoming attention symmetry accuracy So youre interested F3B just eager see high-performance Sailplanes circle July 12-17 show up San Francisco eyes will get big kids candy store Dan Pruss RR 2 Box 490 Plainfield IL 60544 RC Giant Scale/Beckman Continued page 39 pretend know enough about engine theory expound advantages disadvantages arrangement old electronics man Im firm believer idea fewer moving parts better off disassembly quality engine really becomes apparent Crisp clean die castings chromed cylinder precise machining double counterweighted crankshaft massive ball bearings front rear forged steel con-rod etc significant internal features visible engine assembled Looking exhaust port turning engine over reveals three rings piston ring pinned overlaps gap adjacent rings What means better compression seal especially engine hot single-ring engines easy start cold real dogs have warmed up differential expansions have degraded piston-to-cylinder seal John Gibbs does several things engine get ready aircraft use First portions forward crankcase casting used mounting blower components removed machining job done neatly easy overlook fact done point-grounding kill wire added along aluminum mounting plate Finally sixbolt prop hub installed standard hub 1-in long length 1 -in 2-in available special order Johns hub has couple interesting features Instead hole center both hub prop washer have -in diameter projection hub helps locate prop isnt really necessary once six bolt holes properly drilled thats prop washer comes projection washer locator can used jig drill bolt holes prop Turn washer around mount prop find center has drilled tapped spinner mounting Kioritz available Gibbs Hobby & Research 6195 HilIfield St NW North Canton OH 44720 Retail price January 1 1981 $18995 John says will no increase unless cost engine itself increases P-40 plans have already reported several plans Bob Morse come Bob very prolific guy months Morse plan little different however Bobs other offerings own designs P-40 designed built Phil Karafilis Bob said airplane just pretty get work up final drawings good collaboration hopefully will such future plans typical of Bobs work clean neat drawings lots detail innovative solutions inevitable problem areas rugged practical structure etc have complaint however plans Bob uses simple construction technique builds C B Associates hinges control surfaces es pecially rudder elevators previous plans has clearly detailed case think someone unfamiliar technique might have some trouble figuring out other hand criticism probably unjustified because beginners air plane first place big model quarter-scale works out 216% full size little over one-fifth-scale yet wing span 8 ft fuselage measures just over 7 ft edge rudderto tip spinner little over 12 sq ft wing area flying weight 35 lbs wing loading works out 46 oz/sq ft Its tremendous flier like original its no Piper Cub plans three sheets 42 wide seven nine feet long plus smaller sheet 104 Model Aviation 1831 Business Center Dr Duane CA 91010 213/359-0016 Eng 15- 25 Max Chord 13 Wing Area 385 sq Symmetrical Wing Span 36 Length 36 kit Only $3995- Plans $500 Shipped prepaid USA No handling charge Order exclusively from
Edition: Model Aviation - 1981/04
Page Numbers: 36, 37, 103, 104
Edition: Model Aviation - 1981/04
Page Numbers: 36, 37, 103, 104
Conirol Soaring Dan Pruss IF YOURE newcomer sport RC Soaring can get questions answered recent publication called Build Fly Radio Controlled Gliders Jack E Schroder Its available through local hobby shop can order direct Kalmbach Books 1027 North Seventh Street Milwaukee WI 53233 sells $350 arent near club its fatherly advice first building flying project Schroders book will tell about building launching to keep right side up Looking inexpensive set awards contests club giveaways Two items come mind first will also answer oftenraised question can get parachute launching system answer White Company Jim White has turning highquality chutes over five years can pick own color pattern seven colorsred white blue green black orange yellow chutes have used past two USA F3B teams come three sizesSi 98 126 sq smallest still larger minimum FAT requirements sizes made up eight panels 75-lb test shroud lines Jim will also personalize chutes send him club logo name AMA number LSF number etc Chutes $10 five $45 have ever tried making own probably found out timewise quicker make three-piece suit Write White Co 19372 Worchester Lane Huntington Beach CA 92646 other idea club awards contest prizesand wont drain club treasury set LSF glasses Two sizes available Left Team Eole France seen French FAI team-selection meet 1980 Ships feature glass-skinned balsa-over-foam wings Right Patrick Nicaud assistantshe first-placer French team Check smooth-flowing lines design typical European approach F3B design 36 Model Aviation OOT ERON RD RATIO lOOT -40 RD T RATIO ID WING/STAB R ARM B FACTOR JG MASS LOADING LOADING low-ball 10-oz hi-nail 12-oz Ihe LSF sizeis uding shipping Write logo frost-etched set sixeither Warren Tiahrt LSF Secretary 7647 Twilight Len jean uiauoe Bosquetwith new original design F3B sailplane isthe designerof Axel appeared column August1979 Right close took sleek bird long greenhouse canopy allows easy access control linkages Court Clarkston MI 48016 Theyre great conversation-starter youre nonmodeling friends As long Im coming up ideas spend money heres nostalgia buffs well Sailplane builder wants add color drab workshop wall An artist name Bill Neale work has appeared Road Track Flying has done montage Hawley Bowlus pre-Worid War II contributions Included multi-colored poster drawings Baby Albatross Super Albatross Dragonfly XCG-16 cargo glider featured twin boom designed around lifting fuselage Also illustrated Bowlus Road Chief alumi num aerodynamic travel-trailer designed 30s would look good highways today poster measures 18-in x 27-in can obtained $6 Mike Shoen 6719 East Malcomb Paradise Valley AZ 85253 F3B World Championships July 12-17 1981 USA recent ClAM FAI head quarters Paris USA selected third F3B World Championships Details should worked out time read plan now San Francisco area July 12-17 new Soaring F3B competi tion can get familiar tasks flavor international competition readingthe F3B rules page 102 et seq AMAs 1980-81 Official Model Aircraft Regulations have following pages over last two World Championships can see first hand fliers planes general different design spectrum used seeing straight Duration contests Most European teams have already selected judging numbers have fallen interest generated could standingroom-only F3B arena July Speed times have recorded under nine seconds Continued page 103 CAP YOUR CLUB LOGO R II II ULet Knowl II IWho Club u II Member AreI II Low Minimum Reasonable Prices I Inqu e abouCall Write ou customr p nted TEETOP DOG Miam FL 3315 SHIRTS too SW 75th Ave 305 261 Good Servicel Great RC Clubsi 4PATTERN AND 4 HIGH SPEED PROPELLERS Dii AIRSCREW CUSTOM HIGH PERFORMANCE MAPLE PROPELLERS Propeller designed using symmetrical profile Individually precision hand balanced Accurale airfoil pitch Only high quality straight grain Eastern Maple used 5/ X 6% FORMULA 1 10 X 6,5oooct 11X7 11X712 11X8 CUSTOM DESIGN UPON REOUEST DiV PRODUCTS Add StOO r 00, fO SUSO CRYSTAL COURTPostage Rod fl,dljg SANTA Rosa SARA PROSE TOT RAD-SR5ACA SEN ADD 5% TAR April 1981 37 ately Part II will appear next month December written tem perature outside just over 10 degrees thats Celsius next chapter continuing story will have wait avail ability both equipment decent weather hope information presented will use will add soon possible RC Aerobatics/Van Putte Continued page 33 ing comments about flying high altitude has some interesting news us fly near sea level Randy wrote Im compelled send another side altitude story elevation 6000 ft used Lanier Sb Comets 35s Falcon 56s 19s 25s learn sans instructors five years back Theres no lack power fact Sb Comet will fly Enya 35 sleeve turned 1800 1 did flew poorly sure flying Senior Falcons Lanier Comets 40s 60s Sig Kadets 30s 35s Some 40 60 sport birds fly better 60s heavy built right fly fine 40 will admit altitude affects aircraft per formance might throw contest flier off game try play big motor altitude difference too heavy have lot guys learning fly 25 35 trainer 40 45 hot ship beginner Trims change change throttle land hot guys Florida California wher ever bring birds fly Rockies Strips scarce west side flying great Thanks inside story Randy Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Soaring/Pruss Continued page 37 least three British fliers still process selecting team group Austria Germany Switzer land have formed 1SF International Soaring Forum weekend before ClAM over 80 modelers above-mentioned countries met discussed design construction techniques airfoils 68-page report resulted report three-view Spartakus presented month thanks Hansruedi Schlapfer Switzerland Years ago three-task concept came scene USAs approach treat distance task involved thermal ing order get sufficient altitude turn get maximum distance during four-minute flight Most Europeans went other route began design slick machines would fly 12-lap course just virtue slippery lines Designers Spattakus boast LID nearly 20/1 ratio doesnt jostle 10-minute duration design envelope ponder standard 150-meter launch straightline distance 3000 meters Orwell over mile can flown no-wind condition Put F3B Distance-task perspective means nearly 20 laps could flown Wing construction alone could feature design article Ill pass just few points now Construction similar mentioned Continued page 104 MEW oo pR@ U3 Quadra McCulloch Super Hustler new prop hub will fit any e engines ones 5/1 6-24 shaft Bolt plate serves drill jig aod tapped spinner bolt Only $1995ROUSH MFG Dealer ributorP0 Box 251 Inquiries WelcomeSandyville Ohio 44671 C Catalog entie tine airplane Control line model lids P C scale Trainer kits boat model kits accessories etc SO enciosee Name __________________________ ______________________________ City Free-Flight fl/C Assist SUPER BRIGADIER 66 Plan SetSpanFo 15 ta 25 Pawor 2-4 channel 8/C Old favorite #RCFF 2 $995 RIC version has ailerons SUPER BRIGADIER 44 1 /2A A/C Fre-Flight AssistPlan 44 Span qor A/C Training#RC Set $ Prices tor Complete Plans Sub Assembly Detailed Parts Lists Add $200 tor Mailing Tube Send $100 retundable tor Complete Information Kits some really great things come S.: April 1981 103 STEELING MODELS BUILDING 3620 G StreetPhiladelphia Pa 19134 BASEBALL CAPSINTRODUCTORY OFFER See club emblem printed full color comfortable sport caps Order Now $500 ea Send catalog & quantity disc ______e 2021-B THIRD STREET RIVERSIDE CA 92507 NTRODUCING TheRJL K61 R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0 - ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 PRACTICE AEROBA TICS ON PENNIES INSTEAD OF DOLLARS INTRODUCING THE MISER FOR 1981 R/C SPORT FLYER DELUXE Four channel radio mixer rejuired flaperons Stable smooth flying characteristics Responds like controline aerobatic model Youll love MISER ECONOMY - plus PERFORMANCE -plus STYLE-on 15 BLAINES PLANES & RIC Box 109A Rt 1 Fremont IN 46737 COMING COMING COMING COMING 0 PBY-5 Catalina 104 Wing 64 Glass Fuselage Gs PRODUCTS 1010 Gratiot Box 161Z 0 COMING Marysvile MI 48040 COMING last months column regarding Meyer Guttmans LS-3 Basically wing hollowbut layered glass sheet balsa top bottom skins Molds shaped using templates rib section initially plotted five times desired chord size Reduced five times increased accuracy plot left right wings close match humanly possible make might regard overkill its probably Swiss chrono graph costs 20 times timepiece can buy drugstore As attention given matched wings think bird youre flying now trimmed try after few adjustments have satisfied its hands-off performance take safe altitude ease little down stick notice tracks builds up speed Chances wont heading same direction aimed initially say can correct ALL N EW ASTRO STAND 4060 PLANES AND ASTRO PAINT STAND Ultra light durable stands tar holding fuselage wing painting far holding plane up off ground tuning engine pits 1/4 Scale Astra stands also Write call RUSH MODEL PRODUCTS 3242 Went Cad. Road Phoenix AZ 050200 002 003-2115 DEALER INDUIRIES INVITED control deflections fine youre increasing drag deflections concern designers planes like Spartakus overcoming attention symmetry accuracy So youre interested F3B just eager see high-performance Sailplanes circle July 12-17 show up San Francisco eyes will get big kids candy store Dan Pruss RR 2 Box 490 Plainfield IL 60544 RC Giant Scale/Beckman Continued page 39 pretend know enough about engine theory expound advantages disadvantages arrangement old electronics man Im firm believer idea fewer moving parts better off disassembly quality engine really becomes apparent Crisp clean die castings chromed cylinder precise machining double counterweighted crankshaft massive ball bearings front rear forged steel con-rod etc significant internal features visible engine assembled Looking exhaust port turning engine over reveals three rings piston ring pinned overlaps gap adjacent rings What means better compression seal especially engine hot single-ring engines easy start cold real dogs have warmed up differential expansions have degraded piston-to-cylinder seal John Gibbs does several things engine get ready aircraft use First portions forward crankcase casting used mounting blower components removed machining job done neatly easy overlook fact done point-grounding kill wire added along aluminum mounting plate Finally sixbolt prop hub installed standard hub 1-in long length 1 -in 2-in available special order Johns hub has couple interesting features Instead hole center both hub prop washer have -in diameter projection hub helps locate prop isnt really necessary once six bolt holes properly drilled thats prop washer comes projection washer locator can used jig drill bolt holes prop Turn washer around mount prop find center has drilled tapped spinner mounting Kioritz available Gibbs Hobby & Research 6195 HilIfield St NW North Canton OH 44720 Retail price January 1 1981 $18995 John says will no increase unless cost engine itself increases P-40 plans have already reported several plans Bob Morse come Bob very prolific guy months Morse plan little different however Bobs other offerings own designs P-40 designed built Phil Karafilis Bob said airplane just pretty get work up final drawings good collaboration hopefully will such future plans typical of Bobs work clean neat drawings lots detail innovative solutions inevitable problem areas rugged practical structure etc have complaint however plans Bob uses simple construction technique builds C B Associates hinges control surfaces es pecially rudder elevators previous plans has clearly detailed case think someone unfamiliar technique might have some trouble figuring out other hand criticism probably unjustified because beginners air plane first place big model quarter-scale works out 216% full size little over one-fifth-scale yet wing span 8 ft fuselage measures just over 7 ft edge rudderto tip spinner little over 12 sq ft wing area flying weight 35 lbs wing loading works out 46 oz/sq ft Its tremendous flier like original its no Piper Cub plans three sheets 42 wide seven nine feet long plus smaller sheet 104 Model Aviation 1831 Business Center Dr Duane CA 91010 213/359-0016 Eng 15- 25 Max Chord 13 Wing Area 385 sq Symmetrical Wing Span 36 Length 36 kit Only $3995- Plans $500 Shipped prepaid USA No handling charge Order exclusively from
Edition: Model Aviation - 1981/04
Page Numbers: 36, 37, 103, 104
Conirol Soaring Dan Pruss IF YOURE newcomer sport RC Soaring can get questions answered recent publication called Build Fly Radio Controlled Gliders Jack E Schroder Its available through local hobby shop can order direct Kalmbach Books 1027 North Seventh Street Milwaukee WI 53233 sells $350 arent near club its fatherly advice first building flying project Schroders book will tell about building launching to keep right side up Looking inexpensive set awards contests club giveaways Two items come mind first will also answer oftenraised question can get parachute launching system answer White Company Jim White has turning highquality chutes over five years can pick own color pattern seven colorsred white blue green black orange yellow chutes have used past two USA F3B teams come three sizesSi 98 126 sq smallest still larger minimum FAT requirements sizes made up eight panels 75-lb test shroud lines Jim will also personalize chutes send him club logo name AMA number LSF number etc Chutes $10 five $45 have ever tried making own probably found out timewise quicker make three-piece suit Write White Co 19372 Worchester Lane Huntington Beach CA 92646 other idea club awards contest prizesand wont drain club treasury set LSF glasses Two sizes available Left Team Eole France seen French FAI team-selection meet 1980 Ships feature glass-skinned balsa-over-foam wings Right Patrick Nicaud assistantshe first-placer French team Check smooth-flowing lines design typical European approach F3B design 36 Model Aviation OOT ERON RD RATIO lOOT -40 RD T RATIO ID WING/STAB R ARM B FACTOR JG MASS LOADING LOADING low-ball 10-oz hi-nail 12-oz Ihe LSF sizeis uding shipping Write logo frost-etched set sixeither Warren Tiahrt LSF Secretary 7647 Twilight Len jean uiauoe Bosquetwith new original design F3B sailplane isthe designerof Axel appeared column August1979 Right close took sleek bird long greenhouse canopy allows easy access control linkages Court Clarkston MI 48016 Theyre great conversation-starter youre nonmodeling friends As long Im coming up ideas spend money heres nostalgia buffs well Sailplane builder wants add color drab workshop wall An artist name Bill Neale work has appeared Road Track Flying has done montage Hawley Bowlus pre-Worid War II contributions Included multi-colored poster drawings Baby Albatross Super Albatross Dragonfly XCG-16 cargo glider featured twin boom designed around lifting fuselage Also illustrated Bowlus Road Chief alumi num aerodynamic travel-trailer designed 30s would look good highways today poster measures 18-in x 27-in can obtained $6 Mike Shoen 6719 East Malcomb Paradise Valley AZ 85253 F3B World Championships July 12-17 1981 USA recent ClAM FAI head quarters Paris USA selected third F3B World Championships Details should worked out time read plan now San Francisco area July 12-17 new Soaring F3B competi tion can get familiar tasks flavor international competition readingthe F3B rules page 102 et seq AMAs 1980-81 Official Model Aircraft Regulations have following pages over last two World Championships can see first hand fliers planes general different design spectrum used seeing straight Duration contests Most European teams have already selected judging numbers have fallen interest generated could standingroom-only F3B arena July Speed times have recorded under nine seconds Continued page 103 CAP YOUR CLUB LOGO R II II ULet Knowl II IWho Club u II Member AreI II Low Minimum Reasonable Prices I Inqu e abouCall Write ou customr p nted TEETOP DOG Miam FL 3315 SHIRTS too SW 75th Ave 305 261 Good Servicel Great RC Clubsi 4PATTERN AND 4 HIGH SPEED PROPELLERS Dii AIRSCREW CUSTOM HIGH PERFORMANCE MAPLE PROPELLERS Propeller designed using symmetrical profile Individually precision hand balanced Accurale airfoil pitch Only high quality straight grain Eastern Maple used 5/ X 6% FORMULA 1 10 X 6,5oooct 11X7 11X712 11X8 CUSTOM DESIGN UPON REOUEST DiV PRODUCTS Add StOO r 00, fO SUSO CRYSTAL COURTPostage Rod fl,dljg SANTA Rosa SARA PROSE TOT RAD-SR5ACA SEN ADD 5% TAR April 1981 37 ately Part II will appear next month December written tem perature outside just over 10 degrees thats Celsius next chapter continuing story will have wait avail ability both equipment decent weather hope information presented will use will add soon possible RC Aerobatics/Van Putte Continued page 33 ing comments about flying high altitude has some interesting news us fly near sea level Randy wrote Im compelled send another side altitude story elevation 6000 ft used Lanier Sb Comets 35s Falcon 56s 19s 25s learn sans instructors five years back Theres no lack power fact Sb Comet will fly Enya 35 sleeve turned 1800 1 did flew poorly sure flying Senior Falcons Lanier Comets 40s 60s Sig Kadets 30s 35s Some 40 60 sport birds fly better 60s heavy built right fly fine 40 will admit altitude affects aircraft per formance might throw contest flier off game try play big motor altitude difference too heavy have lot guys learning fly 25 35 trainer 40 45 hot ship beginner Trims change change throttle land hot guys Florida California wher ever bring birds fly Rockies Strips scarce west side flying great Thanks inside story Randy Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Soaring/Pruss Continued page 37 least three British fliers still process selecting team group Austria Germany Switzer land have formed 1SF International Soaring Forum weekend before ClAM over 80 modelers above-mentioned countries met discussed design construction techniques airfoils 68-page report resulted report three-view Spartakus presented month thanks Hansruedi Schlapfer Switzerland Years ago three-task concept came scene USAs approach treat distance task involved thermal ing order get sufficient altitude turn get maximum distance during four-minute flight Most Europeans went other route began design slick machines would fly 12-lap course just virtue slippery lines Designers Spattakus boast LID nearly 20/1 ratio doesnt jostle 10-minute duration design envelope ponder standard 150-meter launch straightline distance 3000 meters Orwell over mile can flown no-wind condition Put F3B Distance-task perspective means nearly 20 laps could flown Wing construction alone could feature design article Ill pass just few points now Construction similar mentioned Continued page 104 MEW oo pR@ U3 Quadra McCulloch Super Hustler new prop hub will fit any e engines ones 5/1 6-24 shaft Bolt plate serves drill jig aod tapped spinner bolt Only $1995ROUSH MFG Dealer ributorP0 Box 251 Inquiries WelcomeSandyville Ohio 44671 C Catalog entie tine airplane Control line model lids P C scale Trainer kits boat model kits accessories etc SO enciosee Name __________________________ ______________________________ City Free-Flight fl/C Assist SUPER BRIGADIER 66 Plan SetSpanFo 15 ta 25 Pawor 2-4 channel 8/C Old favorite #RCFF 2 $995 RIC version has ailerons SUPER BRIGADIER 44 1 /2A A/C Fre-Flight AssistPlan 44 Span qor A/C Training#RC Set $ Prices tor Complete Plans Sub Assembly Detailed Parts Lists Add $200 tor Mailing Tube Send $100 retundable tor Complete Information Kits some really great things come S.: April 1981 103 STEELING MODELS BUILDING 3620 G StreetPhiladelphia Pa 19134 BASEBALL CAPSINTRODUCTORY OFFER See club emblem printed full color comfortable sport caps Order Now $500 ea Send catalog & quantity disc ______e 2021-B THIRD STREET RIVERSIDE CA 92507 NTRODUCING TheRJL K61 R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0 - ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 PRACTICE AEROBA TICS ON PENNIES INSTEAD OF DOLLARS INTRODUCING THE MISER FOR 1981 R/C SPORT FLYER DELUXE Four channel radio mixer rejuired flaperons Stable smooth flying characteristics Responds like controline aerobatic model Youll love MISER ECONOMY - plus PERFORMANCE -plus STYLE-on 15 BLAINES PLANES & RIC Box 109A Rt 1 Fremont IN 46737 COMING COMING COMING COMING 0 PBY-5 Catalina 104 Wing 64 Glass Fuselage Gs PRODUCTS 1010 Gratiot Box 161Z 0 COMING Marysvile MI 48040 COMING last months column regarding Meyer Guttmans LS-3 Basically wing hollowbut layered glass sheet balsa top bottom skins Molds shaped using templates rib section initially plotted five times desired chord size Reduced five times increased accuracy plot left right wings close match humanly possible make might regard overkill its probably Swiss chrono graph costs 20 times timepiece can buy drugstore As attention given matched wings think bird youre flying now trimmed try after few adjustments have satisfied its hands-off performance take safe altitude ease little down stick notice tracks builds up speed Chances wont heading same direction aimed initially say can correct ALL N EW ASTRO STAND 4060 PLANES AND ASTRO PAINT STAND Ultra light durable stands tar holding fuselage wing painting far holding plane up off ground tuning engine pits 1/4 Scale Astra stands also Write call RUSH MODEL PRODUCTS 3242 Went Cad. Road Phoenix AZ 050200 002 003-2115 DEALER INDUIRIES INVITED control deflections fine youre increasing drag deflections concern designers planes like Spartakus overcoming attention symmetry accuracy So youre interested F3B just eager see high-performance Sailplanes circle July 12-17 show up San Francisco eyes will get big kids candy store Dan Pruss RR 2 Box 490 Plainfield IL 60544 RC Giant Scale/Beckman Continued page 39 pretend know enough about engine theory expound advantages disadvantages arrangement old electronics man Im firm believer idea fewer moving parts better off disassembly quality engine really becomes apparent Crisp clean die castings chromed cylinder precise machining double counterweighted crankshaft massive ball bearings front rear forged steel con-rod etc significant internal features visible engine assembled Looking exhaust port turning engine over reveals three rings piston ring pinned overlaps gap adjacent rings What means better compression seal especially engine hot single-ring engines easy start cold real dogs have warmed up differential expansions have degraded piston-to-cylinder seal John Gibbs does several things engine get ready aircraft use First portions forward crankcase casting used mounting blower components removed machining job done neatly easy overlook fact done point-grounding kill wire added along aluminum mounting plate Finally sixbolt prop hub installed standard hub 1-in long length 1 -in 2-in available special order Johns hub has couple interesting features Instead hole center both hub prop washer have -in diameter projection hub helps locate prop isnt really necessary once six bolt holes properly drilled thats prop washer comes projection washer locator can used jig drill bolt holes prop Turn washer around mount prop find center has drilled tapped spinner mounting Kioritz available Gibbs Hobby & Research 6195 HilIfield St NW North Canton OH 44720 Retail price January 1 1981 $18995 John says will no increase unless cost engine itself increases P-40 plans have already reported several plans Bob Morse come Bob very prolific guy months Morse plan little different however Bobs other offerings own designs P-40 designed built Phil Karafilis Bob said airplane just pretty get work up final drawings good collaboration hopefully will such future plans typical of Bobs work clean neat drawings lots detail innovative solutions inevitable problem areas rugged practical structure etc have complaint however plans Bob uses simple construction technique builds C B Associates hinges control surfaces es pecially rudder elevators previous plans has clearly detailed case think someone unfamiliar technique might have some trouble figuring out other hand criticism probably unjustified because beginners air plane first place big model quarter-scale works out 216% full size little over one-fifth-scale yet wing span 8 ft fuselage measures just over 7 ft edge rudderto tip spinner little over 12 sq ft wing area flying weight 35 lbs wing loading works out 46 oz/sq ft Its tremendous flier like original its no Piper Cub plans three sheets 42 wide seven nine feet long plus smaller sheet 104 Model Aviation 1831 Business Center Dr Duane CA 91010 213/359-0016 Eng 15- 25 Max Chord 13 Wing Area 385 sq Symmetrical Wing Span 36 Length 36 kit Only $3995- Plans $500 Shipped prepaid USA No handling charge Order exclusively from
Edition: Model Aviation - 1981/04
Page Numbers: 36, 37, 103, 104
Conirol Soaring Dan Pruss IF YOURE newcomer sport RC Soaring can get questions answered recent publication called Build Fly Radio Controlled Gliders Jack E Schroder Its available through local hobby shop can order direct Kalmbach Books 1027 North Seventh Street Milwaukee WI 53233 sells $350 arent near club its fatherly advice first building flying project Schroders book will tell about building launching to keep right side up Looking inexpensive set awards contests club giveaways Two items come mind first will also answer oftenraised question can get parachute launching system answer White Company Jim White has turning highquality chutes over five years can pick own color pattern seven colorsred white blue green black orange yellow chutes have used past two USA F3B teams come three sizesSi 98 126 sq smallest still larger minimum FAT requirements sizes made up eight panels 75-lb test shroud lines Jim will also personalize chutes send him club logo name AMA number LSF number etc Chutes $10 five $45 have ever tried making own probably found out timewise quicker make three-piece suit Write White Co 19372 Worchester Lane Huntington Beach CA 92646 other idea club awards contest prizesand wont drain club treasury set LSF glasses Two sizes available Left Team Eole France seen French FAI team-selection meet 1980 Ships feature glass-skinned balsa-over-foam wings Right Patrick Nicaud assistantshe first-placer French team Check smooth-flowing lines design typical European approach F3B design 36 Model Aviation OOT ERON RD RATIO lOOT -40 RD T RATIO ID WING/STAB R ARM B FACTOR JG MASS LOADING LOADING low-ball 10-oz hi-nail 12-oz Ihe LSF sizeis uding shipping Write logo frost-etched set sixeither Warren Tiahrt LSF Secretary 7647 Twilight Len jean uiauoe Bosquetwith new original design F3B sailplane isthe designerof Axel appeared column August1979 Right close took sleek bird long greenhouse canopy allows easy access control linkages Court Clarkston MI 48016 Theyre great conversation-starter youre nonmodeling friends As long Im coming up ideas spend money heres nostalgia buffs well Sailplane builder wants add color drab workshop wall An artist name Bill Neale work has appeared Road Track Flying has done montage Hawley Bowlus pre-Worid War II contributions Included multi-colored poster drawings Baby Albatross Super Albatross Dragonfly XCG-16 cargo glider featured twin boom designed around lifting fuselage Also illustrated Bowlus Road Chief alumi num aerodynamic travel-trailer designed 30s would look good highways today poster measures 18-in x 27-in can obtained $6 Mike Shoen 6719 East Malcomb Paradise Valley AZ 85253 F3B World Championships July 12-17 1981 USA recent ClAM FAI head quarters Paris USA selected third F3B World Championships Details should worked out time read plan now San Francisco area July 12-17 new Soaring F3B competi tion can get familiar tasks flavor international competition readingthe F3B rules page 102 et seq AMAs 1980-81 Official Model Aircraft Regulations have following pages over last two World Championships can see first hand fliers planes general different design spectrum used seeing straight Duration contests Most European teams have already selected judging numbers have fallen interest generated could standingroom-only F3B arena July Speed times have recorded under nine seconds Continued page 103 CAP YOUR CLUB LOGO R II II ULet Knowl II IWho Club u II Member AreI II Low Minimum Reasonable Prices I Inqu e abouCall Write ou customr p nted TEETOP DOG Miam FL 3315 SHIRTS too SW 75th Ave 305 261 Good Servicel Great RC Clubsi 4PATTERN AND 4 HIGH SPEED PROPELLERS Dii AIRSCREW CUSTOM HIGH PERFORMANCE MAPLE PROPELLERS Propeller designed using symmetrical profile Individually precision hand balanced Accurale airfoil pitch Only high quality straight grain Eastern Maple used 5/ X 6% FORMULA 1 10 X 6,5oooct 11X7 11X712 11X8 CUSTOM DESIGN UPON REOUEST DiV PRODUCTS Add StOO r 00, fO SUSO CRYSTAL COURTPostage Rod fl,dljg SANTA Rosa SARA PROSE TOT RAD-SR5ACA SEN ADD 5% TAR April 1981 37 ately Part II will appear next month December written tem perature outside just over 10 degrees thats Celsius next chapter continuing story will have wait avail ability both equipment decent weather hope information presented will use will add soon possible RC Aerobatics/Van Putte Continued page 33 ing comments about flying high altitude has some interesting news us fly near sea level Randy wrote Im compelled send another side altitude story elevation 6000 ft used Lanier Sb Comets 35s Falcon 56s 19s 25s learn sans instructors five years back Theres no lack power fact Sb Comet will fly Enya 35 sleeve turned 1800 1 did flew poorly sure flying Senior Falcons Lanier Comets 40s 60s Sig Kadets 30s 35s Some 40 60 sport birds fly better 60s heavy built right fly fine 40 will admit altitude affects aircraft per formance might throw contest flier off game try play big motor altitude difference too heavy have lot guys learning fly 25 35 trainer 40 45 hot ship beginner Trims change change throttle land hot guys Florida California wher ever bring birds fly Rockies Strips scarce west side flying great Thanks inside story Randy Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Soaring/Pruss Continued page 37 least three British fliers still process selecting team group Austria Germany Switzer land have formed 1SF International Soaring Forum weekend before ClAM over 80 modelers above-mentioned countries met discussed design construction techniques airfoils 68-page report resulted report three-view Spartakus presented month thanks Hansruedi Schlapfer Switzerland Years ago three-task concept came scene USAs approach treat distance task involved thermal ing order get sufficient altitude turn get maximum distance during four-minute flight Most Europeans went other route began design slick machines would fly 12-lap course just virtue slippery lines Designers Spattakus boast LID nearly 20/1 ratio doesnt jostle 10-minute duration design envelope ponder standard 150-meter launch straightline distance 3000 meters Orwell over mile can flown no-wind condition Put F3B Distance-task perspective means nearly 20 laps could flown Wing construction alone could feature design article Ill pass just few points now Construction similar mentioned Continued page 104 MEW oo pR@ U3 Quadra McCulloch Super Hustler new prop hub will fit any e engines ones 5/1 6-24 shaft Bolt plate serves drill jig aod tapped spinner bolt Only $1995ROUSH MFG Dealer ributorP0 Box 251 Inquiries WelcomeSandyville Ohio 44671 C Catalog entie tine airplane Control line model lids P C scale Trainer kits boat model kits accessories etc SO enciosee Name __________________________ ______________________________ City Free-Flight fl/C Assist SUPER BRIGADIER 66 Plan SetSpanFo 15 ta 25 Pawor 2-4 channel 8/C Old favorite #RCFF 2 $995 RIC version has ailerons SUPER BRIGADIER 44 1 /2A A/C Fre-Flight AssistPlan 44 Span qor A/C Training#RC Set $ Prices tor Complete Plans Sub Assembly Detailed Parts Lists Add $200 tor Mailing Tube Send $100 retundable tor Complete Information Kits some really great things come S.: April 1981 103 STEELING MODELS BUILDING 3620 G StreetPhiladelphia Pa 19134 BASEBALL CAPSINTRODUCTORY OFFER See club emblem printed full color comfortable sport caps Order Now $500 ea Send catalog & quantity disc ______e 2021-B THIRD STREET RIVERSIDE CA 92507 NTRODUCING TheRJL K61 R/C ENGINE RJL Industries now produces renowned engine formerly manufactured Kraft Systems Inc schnuerle ported 61 cubic inch engine provides easy starting high performance longevity Produced finest materials workmanship quality assurance youll proud have aircraft powered K61 FEATURES INCLUDE Schnuerle Ports Boost Port Double Ball Bearings Forged Alloy Piston & Con Rod Bushed Connecting Rod 0 - ring Sealed Back Cover 16 HP 15500 RPM SUGGESTED RETAIL $13995 Muffler Included Send Free Catalog Today R J L INDUSTRIES P0 Box 5654 Pasadena CA 91107 PRACTICE AEROBA TICS ON PENNIES INSTEAD OF DOLLARS INTRODUCING THE MISER FOR 1981 R/C SPORT FLYER DELUXE Four channel radio mixer rejuired flaperons Stable smooth flying characteristics Responds like controline aerobatic model Youll love MISER ECONOMY - plus PERFORMANCE -plus STYLE-on 15 BLAINES PLANES & RIC Box 109A Rt 1 Fremont IN 46737 COMING COMING COMING COMING 0 PBY-5 Catalina 104 Wing 64 Glass Fuselage Gs PRODUCTS 1010 Gratiot Box 161Z 0 COMING Marysvile MI 48040 COMING last months column regarding Meyer Guttmans LS-3 Basically wing hollowbut layered glass sheet balsa top bottom skins Molds shaped using templates rib section initially plotted five times desired chord size Reduced five times increased accuracy plot left right wings close match humanly possible make might regard overkill its probably Swiss chrono graph costs 20 times timepiece can buy drugstore As attention given matched wings think bird youre flying now trimmed try after few adjustments have satisfied its hands-off performance take safe altitude ease little down stick notice tracks builds up speed Chances wont heading same direction aimed initially say can correct ALL N EW ASTRO STAND 4060 PLANES AND ASTRO PAINT STAND Ultra light durable stands tar holding fuselage wing painting far holding plane up off ground tuning engine pits 1/4 Scale Astra stands also Write call RUSH MODEL PRODUCTS 3242 Went Cad. Road Phoenix AZ 050200 002 003-2115 DEALER INDUIRIES INVITED control deflections fine youre increasing drag deflections concern designers planes like Spartakus overcoming attention symmetry accuracy So youre interested F3B just eager see high-performance Sailplanes circle July 12-17 show up San Francisco eyes will get big kids candy store Dan Pruss RR 2 Box 490 Plainfield IL 60544 RC Giant Scale/Beckman Continued page 39 pretend know enough about engine theory expound advantages disadvantages arrangement old electronics man Im firm believer idea fewer moving parts better off disassembly quality engine really becomes apparent Crisp clean die castings chromed cylinder precise machining double counterweighted crankshaft massive ball bearings front rear forged steel con-rod etc significant internal features visible engine assembled Looking exhaust port turning engine over reveals three rings piston ring pinned overlaps gap adjacent rings What means better compression seal especially engine hot single-ring engines easy start cold real dogs have warmed up differential expansions have degraded piston-to-cylinder seal John Gibbs does several things engine get ready aircraft use First portions forward crankcase casting used mounting blower components removed machining job done neatly easy overlook fact done point-grounding kill wire added along aluminum mounting plate Finally sixbolt prop hub installed standard hub 1-in long length 1 -in 2-in available special order Johns hub has couple interesting features Instead hole center both hub prop washer have -in diameter projection hub helps locate prop isnt really necessary once six bolt holes properly drilled thats prop washer comes projection washer locator can used jig drill bolt holes prop Turn washer around mount prop find center has drilled tapped spinner mounting Kioritz available Gibbs Hobby & Research 6195 HilIfield St NW North Canton OH 44720 Retail price January 1 1981 $18995 John says will no increase unless cost engine itself increases P-40 plans have already reported several plans Bob Morse come Bob very prolific guy months Morse plan little different however Bobs other offerings own designs P-40 designed built Phil Karafilis Bob said airplane just pretty get work up final drawings good collaboration hopefully will such future plans typical of Bobs work clean neat drawings lots detail innovative solutions inevitable problem areas rugged practical structure etc have complaint however plans Bob uses simple construction technique builds C B Associates hinges control surfaces es pecially rudder elevators previous plans has clearly detailed case think someone unfamiliar technique might have some trouble figuring out other hand criticism probably unjustified because beginners air plane first place big model quarter-scale works out 216% full size little over one-fifth-scale yet wing span 8 ft fuselage measures just over 7 ft edge rudderto tip spinner little over 12 sq ft wing area flying weight 35 lbs wing loading works out 46 oz/sq ft Its tremendous flier like original its no Piper Cub plans three sheets 42 wide seven nine feet long plus smaller sheet 104 Model Aviation 1831 Business Center Dr Duane CA 91010 213/359-0016 Eng 15- 25 Max Chord 13 Wing Area 385 sq Symmetrical Wing Span 36 Length 36 kit Only $3995- Plans $500 Shipped prepaid USA No handling charge Order exclusively from
