Among offered Industry Machines enthusia have years kr over 4 rouna fuji DO YOU KNOW what Humble Buz zard Did know getting hit ear dirigible doesnt hurt Are aware Wilbur Orville really didnt invent aeroplane Maz das dont really have rotary engines Well way gain such priceless knowledge have whale good time boot take Aeroplanes Flying Ma chines class Los Angeles home California Museum Science Indus try Thousands students summer take advantage offerings diverse Marine Ecology Computer Program ming Headed up Gerry Richer Summer Science Workshop program great teachers students alike due simple fact guiding principle making learning fun Everyone gives own special class class would like have young Some classes one-week sessions some two standard period two hours long student can take two dif ferent classes such Animal Behavior morning Rocketry afternoon present operate eight weeks starting week after LA city schools get out Tuition about $30 two-week class such Aeroplanes workshop Although classes young child ren kindergarten up take kids fifth grade twelfth grade general character groups teach would prob ably fall category gifted parents wishing offer enrichment pressure offspring 20 hours disposal trick divide up time between theory building models flying ses sions name game organiza tion can well imagine Well after almost ten years Im getting What makes class fun other just learning new interesting things hav ing success flying something has built ones own two hands kids hard may believe have never used knife other cutting up supper So program has appeal students know zilch about planes thumbs also boy girl genius starts out asking help compute Reynolds Num ber new pattern ship theyre design ing start out slide presentation Ive made up taking slides good airplane pictures wherever can get hands traces history aviation tower jumpers through de Rozier Ader Whitehead etc ending Space Shuttle keep adding get better photos always enjoy seeing too something bores know its going deadly kids use slides illustrate everything parts flying craft its easier show slide vortex generators 707 way rather take field trip airport odd unusual flying March 1978 9 students repeat Aeroplanes class work difficult projects time review basic flight principles Advanced student buNding stick-and-tissue model receive aviation model-building merit badges Boy Scouts taking class Such built-up projects sharpen dexterity Join ing fuselage sides isnt easy Above Ilyable dirigibles delignt Bill Warner demonstrates static ballasting model ing clay give slight descent power applied dirigible moves positive angle attack supplies lift Helium bought commercial supply see text right Tom Nakaki assist ant both winter summer programs Below Gondola dirigible made styrofoam egg carton balsa Sleek Streak propeller machines prefer slides movies due fact can keep can keep pulling out deadwood adding good stuff can pace presentation fit available time have presentation lighter-than-air propulsion powerplants airfoils other as-needed slides end first day building Yelf popular 1/32 sheet polyhedral catapult glider has evolved over years build give kid building board smooth Celotex insulation mater ial 4X8 sheet makes ten 8B X-Acto retractable knife tube Testors cellulose model cement cheapest can find small sanding block bit cardboard cut little book called Flying Golden Press things keep along models may have start cutting down inflation reduc ing buying power $500 lab fee go home end first day completed Yelf resting building board under tables rear huge room former store room basement Space Mu seum encourage students put name item stuff felt pen have tethered front room Saves arguments assume reading persons some interest junior program teachers Scout leaders etc hope some things mostly borrowed ideas will some use question what cover also problem just model building per se would 10 Model Aviation Rogallow flex wing typical projects tried rubber powered year seems stuff hanging around room Di rector Gerry Richer likes bring visitors just see room full nifty junk models display impressive iuoents wino ruoner motor inrusi oynamometer cnec erred different pitch props rubber motors Model building tied understanding science flight support program stress nomencla ture four forces acting airplane flight stability control class divided aerostatics aerodynamics emphasis dy namic flight heavier-than-air try introduce concepts build projects illustrate room has several large tables kids work room left over small demonstration flying area big enough Pennyplane demo ornithopter have unusual demonstrators flying beer can one-winged HLG try have kids come up application principles studying particu lar craft example after demonstrating torque rubber-powered tractor model demonstrate countering force spiral propwash piece demonstra tion apparatus fly pusher canard show much plane wants turn left effects spiral propwash hitting craft turning left counter-torque alone have series simple gliders has no horizontal stab ilizer no vertical tail no di hedral too much short tail moment huge tail surfaces along tail moment teeny surfaces etc kids creativity moves him/her veer project design instance leaving off vertical stabilizer/ rudder will soon find out what happens gets out flying field thats way learn proof pudding flying field large parking lot near Los Angeles Coliseum kid may have paid much attention topic wash-in/wash-out angles incidence covered first time class model returns itself kit form pavement due warped wing forgot ten incidence shim will quite atten tive topic reviewed after flying session line try inspect models before get trouble pointing out problems before become terminal cases-in-point Kids allowed take models home before end class can make incredibly creative errors solidly glued place before see model again attrition rate home also incredible Its neighbors tree ttle brother ate ccoon peed excuses have heard flying day ask kids test models Keep em room have number demonstrators made up kids reason another have noth ing hand fly kids get some social benefit class too forthey have pair up winding purposes take flying site few rubber winders repair supplies extra rubber rubber lube eager beavers constantly trying win workshops coveted certificate Humble Buz zard membership given over-oneminute flights other repair stuff box High-performance important class projects must selected mind well suitability material being learned ease con struction beginners all-sheet planes answer because durable tissue-covered variety certainly easier repair go together fast plane has endured year after year use class JASCO X-18 have built hun dreds fly Frank Zaics work designing producing little gem plus help has provided others doing junior programs has really first-rate last session summer X-18 did over four minutes X-18 useful covering wash-in/ wash-out incidence moments CG CP rudder effect torque next step Super Extended Sleek Streek highlymodified ROG kit useful demonstrat ing cambered airfoil lateral longitud inal stability yes use big words. great kids let drop dinner table Most kids can get minute model keep useful learning flight adjustments effects wing warping since wood Sleek-Streek wings generally warpprone unlike nifty flat C-grain X- 18 Last summer started new project based Sleek Streek pusher canard builds hour flies pretty well over minute Advanced students kids have taken class once encouraged build weirder harder planes such students keep supply HLG rub ber kits ranging Sweepette Peck Polymers Nesmith Cougar Another new glider Yelf III tailless design incorporating tip rudders sweepback reflexed wing tip elevons As class size varies ten 25 students amount time can give working individually advanced students also varies Fortunately SSW provides March 1978 11 r.gnis ike uur-ng uri u. amaze students other summer workshop classes assure gooa enrollment successive classes Model Sig Cub ending 63-second indoor hop John Hughes launches Sig Uncle Sam As re peat student has good projects choose fromPeck Peanut kits Stringless Wonders Square Things various hand-launched gliders ROGs modest fee course teaching assistant present helper Tom Nakaki former Aeroplanes class student now working way through college way aero nautical engineer really need two knowledgeable people group over ten lighter-than-air portion class ball mentioned slide presentation starts hot-air balloons stop slides demonstrate Mont golfi&e made dry-cleaners bag heated over chimney made large apple juice cans four-high soldered together propane torch burning inside Back slides Now light gas Im about play hydrogen balloon tank helium available stop slides aerostatic hovering different altitudes room demonstrating use/effect guide rope heavy string kids get helium balloon string modeling clay ballast time experiment everyone has done back slides dirigibles After Hindenburg ashes have cooled screen begin construction own dirigible project Kids instructed day bring styrofoam egg carton now pair up construct blimp Except very small classes find much better assign two kids build ship holds filled balloon other attaches gondola fins made stiff paper will needed wind once flying time arrives cant drop goes ceiling have dickens time getting down use Bill Watson method covering top heliumfilled chase balloon-on-a-string loops sticky tape motor stick use doubles fuselage canard Sleek Streek prop backwards shaft bent around drive prop gondola temporary arrangement since life dirigible couple hours due leakagehelium usually inaccessible kids home fins attached first Magic Mending Scotch tape gondola location determined holding palm hand over top surface balloon find point lift centered gondola goes couple short pieces vinyl electricians tape too much its heavy Modeling clay added level ship aerostatically get hover Note heavy tail fins may require rolling tiny rope clay scotchtaping nose counterbalance Practice necessary get just right inflation too much and. bang enough balloon wont lift weight Just little extra clay added get slow descent single-strand 2-mm rubber motor used power Too much power gives unrealistic steep climb want just enough rotate nose up shallow angle attack forward mo tion balloon will generate dynamic lift dirigible will climb power quits forward motion ceases ship descends balanced teeny bit heavy remember practice classroom free-balloon aerostats now pays off kids habit using wee bits clay altitude changes Taking off too much means ceiling trip flying site Space Museum ceiling about 45 feet Its gorgeous sight watch ing several brightly-colored dirigibles cruising majestically around among rockets satellites Always draws crowd wanting know can buy thing about dirigibles pro ject fly Because crash damage comes once explodes generally retrievalfrom-ceiling operation have four flying sessions three out parking lot outdoor planes museum dirigibles great amount learning takes place flying field constant referral principles covered class much use technical vocabulary object lessons wherever can found have run ning joke Anyone leaves fly12 Model Aviation Author assists young aviator readying X-18 flight Class flies parking lot adjacent Los Angeles Coliseum three times during two-week class session Rest time spent classroom extensive slide shows demonstrations building sorts good stuff Continued page 85 class flying session Coliseum proved good have demonstration models students have either broken forgotten own Boys shown pioneer class late 60s Some kids take science like ducks water Assistant Bill Watson right now bike racing professional model building including man-powered aircraft Letters Editor continued page 60 States Air Force have building flying models since age 13 am enclosing picture planes built flown 1957 Richard Gardner Ft Worth TX AMA has sent Mr Gardner Club Kit Rule Book Membership Applica tion materials free anyone terested joining AMA Take Bow Walt would like take opportunity thank Walt Schoonard excellent column helicopters Model via tion magazine Im sure others will agree Walt has added greatly knowledge interested radio con trol helicopters has made sug gestions improving performance safety helicopters enjoy fly ing much Thank Walt Roger WMay College Place WA CORRECTION delighted presentation article About Size following errata captions describing photos did write reference triple redundant photographers camera required nail down critical spray peaks three dimensions three cameras indeed neces sary Skate model suspended rig balsa metal being carried rig mounted launch about 20 feet long fitted out purpose test being run Estuary small inlet San Diego Bay first paragraph page 11 sev eral places Time t expressed KS should read K Bradford Powers Schoolwork Fun/Warner continued page 12 ing site crashing least plane trying hard enough crash learning takes place stress need carefully ob serve flight Knowing whether plane crashed right spiral left spiral makes world difference what cor rective action take Hypothesize what caused problem test hypothesis making corrections before flying again repeat process try have ask watch first flights successive ones plane doing what should second-opinion method planes get flying better better last session inviting parents come out watch Results really impressive especially about 1000 am thermals start cooking off black-top return classroom critique after session go over common problems Some hardware have built class includes 1/4-hp wind machine demonstrating lift/drag control surfaces spiral propwash demonstrator prop unhooked model able turn freely its longitudinal axis moment-arm balance scale couple blow-between balls toilet-paper tube goodies Bernoulli effect old spooland-card trick thrust-measuring device show relationships between different props different size motors cansmash gallon can steam ping pong ball hair-dryer airstream lots flying demonstrators mentioned earlier product review product review product review ACE 25th Anniversary Catalogue over quarter centry ago Paul Runge founder proprietor ACEalong son Tom re cently Air Forcewas flying RC found like rest pioneer fliers parts almost impossible get Radio Shack Boston Commonplace items components could found big radio sup ply stores day requiring nationwide search such essentials National Coil Forms 3A4 3D6 tubes magnet wire Realizing others sharing problems Runge founded ACE R/C first small ad appearing May 1953 issue Air Trails first catalogue 2-sheet affair printed spirit duplicator new 72-pg ACE catalogue still offers hard-to-get parts also covers kits parts assembly modern reliable gear Contain ing vast array items catalogue costs $100 add 50c first class mail returnl $100 catalogue refundable first order ACE R/C Box 511G Higgins yule MO 64037 product review product review product review Such program can put together almost anywhere form another reasons succeeds well due support California Mu seum Foundation Gerry Richer Summer Science Workshop director give pretty much free hand plan class provide financial moral help Teachers picked because nuts about what doing love job well cant imagine someone being assigned teach class like As other kinds help lots super people will help people like Bill Hannan Art Guenther Tony Naccarato Frank Zaic over country Ask owe great deal model aviation passing some fun kids program can start repaying sides else can get paid playing toy airplanes Sources Supply Helium welding supply store LA 245 cuft bottle costs $35 gas wsth $70 deposit $390/mo rental balloon filler buy $28 Balloons California Toytime Balloon Co 1116 West 7th St San Pedro CA has Zeppelin balloons gross gross regular round balloons about $30 both JASCO X-18 JASCO Box 135 North ridge CA 91324 Ask fleet rate catalog Frank Zaic has other beginners kits too X-18 queen line has rubber too Sleek Streeks almost dime stores toy dealers no luck try manufacturer North Pacific Products Bend Oregon Retail late 1977 $59 ea have two kinds balsa styrofoam wing Take balsa Rubber winders Sterling Models 3620 GSt Philadelphia PA 19134 Brochure Summer Science Workshop winter Exploring Science Sat urdays program teach abridged version Aeroplanes Flying Ma chines class call Uncle Bills Fly ing Circus Available ESS/SSW California State Museum Science Industry 700 State Drive Los Angeles CA 90037 RC Technique/Myers continued page 14 fore brought out separate lead purpose may prefer adapter important thing remember positive lead Rapid charger con nects negative terminal exter nal battery Ive sketched out Fig 3 Fig 4 gives close look metered van-charger available kit ACE R/C Inc Box 511 Higgins ville MO 64037 son Tim 14 years old built about hour unit has MarCh1978 85 KA Jill 1$ ACE l/ inc 90X56W 9HS KGGNSV E MO 6403 99]
Edition: Model Aviation - 1978/03
Page Numbers: 8, 9, 10, 11, 12, 85
Among offered Industry Machines enthusia have years kr over 4 rouna fuji DO YOU KNOW what Humble Buz zard Did know getting hit ear dirigible doesnt hurt Are aware Wilbur Orville really didnt invent aeroplane Maz das dont really have rotary engines Well way gain such priceless knowledge have whale good time boot take Aeroplanes Flying Ma chines class Los Angeles home California Museum Science Indus try Thousands students summer take advantage offerings diverse Marine Ecology Computer Program ming Headed up Gerry Richer Summer Science Workshop program great teachers students alike due simple fact guiding principle making learning fun Everyone gives own special class class would like have young Some classes one-week sessions some two standard period two hours long student can take two dif ferent classes such Animal Behavior morning Rocketry afternoon present operate eight weeks starting week after LA city schools get out Tuition about $30 two-week class such Aeroplanes workshop Although classes young child ren kindergarten up take kids fifth grade twelfth grade general character groups teach would prob ably fall category gifted parents wishing offer enrichment pressure offspring 20 hours disposal trick divide up time between theory building models flying ses sions name game organiza tion can well imagine Well after almost ten years Im getting What makes class fun other just learning new interesting things hav ing success flying something has built ones own two hands kids hard may believe have never used knife other cutting up supper So program has appeal students know zilch about planes thumbs also boy girl genius starts out asking help compute Reynolds Num ber new pattern ship theyre design ing start out slide presentation Ive made up taking slides good airplane pictures wherever can get hands traces history aviation tower jumpers through de Rozier Ader Whitehead etc ending Space Shuttle keep adding get better photos always enjoy seeing too something bores know its going deadly kids use slides illustrate everything parts flying craft its easier show slide vortex generators 707 way rather take field trip airport odd unusual flying March 1978 9 students repeat Aeroplanes class work difficult projects time review basic flight principles Advanced student buNding stick-and-tissue model receive aviation model-building merit badges Boy Scouts taking class Such built-up projects sharpen dexterity Join ing fuselage sides isnt easy Above Ilyable dirigibles delignt Bill Warner demonstrates static ballasting model ing clay give slight descent power applied dirigible moves positive angle attack supplies lift Helium bought commercial supply see text right Tom Nakaki assist ant both winter summer programs Below Gondola dirigible made styrofoam egg carton balsa Sleek Streak propeller machines prefer slides movies due fact can keep can keep pulling out deadwood adding good stuff can pace presentation fit available time have presentation lighter-than-air propulsion powerplants airfoils other as-needed slides end first day building Yelf popular 1/32 sheet polyhedral catapult glider has evolved over years build give kid building board smooth Celotex insulation mater ial 4X8 sheet makes ten 8B X-Acto retractable knife tube Testors cellulose model cement cheapest can find small sanding block bit cardboard cut little book called Flying Golden Press things keep along models may have start cutting down inflation reduc ing buying power $500 lab fee go home end first day completed Yelf resting building board under tables rear huge room former store room basement Space Mu seum encourage students put name item stuff felt pen have tethered front room Saves arguments assume reading persons some interest junior program teachers Scout leaders etc hope some things mostly borrowed ideas will some use question what cover also problem just model building per se would 10 Model Aviation Rogallow flex wing typical projects tried rubber powered year seems stuff hanging around room Di rector Gerry Richer likes bring visitors just see room full nifty junk models display impressive iuoents wino ruoner motor inrusi oynamometer cnec erred different pitch props rubber motors Model building tied understanding science flight support program stress nomencla ture four forces acting airplane flight stability control class divided aerostatics aerodynamics emphasis dy namic flight heavier-than-air try introduce concepts build projects illustrate room has several large tables kids work room left over small demonstration flying area big enough Pennyplane demo ornithopter have unusual demonstrators flying beer can one-winged HLG try have kids come up application principles studying particu lar craft example after demonstrating torque rubber-powered tractor model demonstrate countering force spiral propwash piece demonstra tion apparatus fly pusher canard show much plane wants turn left effects spiral propwash hitting craft turning left counter-torque alone have series simple gliders has no horizontal stab ilizer no vertical tail no di hedral too much short tail moment huge tail surfaces along tail moment teeny surfaces etc kids creativity moves him/her veer project design instance leaving off vertical stabilizer/ rudder will soon find out what happens gets out flying field thats way learn proof pudding flying field large parking lot near Los Angeles Coliseum kid may have paid much attention topic wash-in/wash-out angles incidence covered first time class model returns itself kit form pavement due warped wing forgot ten incidence shim will quite atten tive topic reviewed after flying session line try inspect models before get trouble pointing out problems before become terminal cases-in-point Kids allowed take models home before end class can make incredibly creative errors solidly glued place before see model again attrition rate home also incredible Its neighbors tree ttle brother ate ccoon peed excuses have heard flying day ask kids test models Keep em room have number demonstrators made up kids reason another have noth ing hand fly kids get some social benefit class too forthey have pair up winding purposes take flying site few rubber winders repair supplies extra rubber rubber lube eager beavers constantly trying win workshops coveted certificate Humble Buz zard membership given over-oneminute flights other repair stuff box High-performance important class projects must selected mind well suitability material being learned ease con struction beginners all-sheet planes answer because durable tissue-covered variety certainly easier repair go together fast plane has endured year after year use class JASCO X-18 have built hun dreds fly Frank Zaics work designing producing little gem plus help has provided others doing junior programs has really first-rate last session summer X-18 did over four minutes X-18 useful covering wash-in/ wash-out incidence moments CG CP rudder effect torque next step Super Extended Sleek Streek highlymodified ROG kit useful demonstrat ing cambered airfoil lateral longitud inal stability yes use big words. great kids let drop dinner table Most kids can get minute model keep useful learning flight adjustments effects wing warping since wood Sleek-Streek wings generally warpprone unlike nifty flat C-grain X- 18 Last summer started new project based Sleek Streek pusher canard builds hour flies pretty well over minute Advanced students kids have taken class once encouraged build weirder harder planes such students keep supply HLG rub ber kits ranging Sweepette Peck Polymers Nesmith Cougar Another new glider Yelf III tailless design incorporating tip rudders sweepback reflexed wing tip elevons As class size varies ten 25 students amount time can give working individually advanced students also varies Fortunately SSW provides March 1978 11 r.gnis ike uur-ng uri u. amaze students other summer workshop classes assure gooa enrollment successive classes Model Sig Cub ending 63-second indoor hop John Hughes launches Sig Uncle Sam As re peat student has good projects choose fromPeck Peanut kits Stringless Wonders Square Things various hand-launched gliders ROGs modest fee course teaching assistant present helper Tom Nakaki former Aeroplanes class student now working way through college way aero nautical engineer really need two knowledgeable people group over ten lighter-than-air portion class ball mentioned slide presentation starts hot-air balloons stop slides demonstrate Mont golfi&e made dry-cleaners bag heated over chimney made large apple juice cans four-high soldered together propane torch burning inside Back slides Now light gas Im about play hydrogen balloon tank helium available stop slides aerostatic hovering different altitudes room demonstrating use/effect guide rope heavy string kids get helium balloon string modeling clay ballast time experiment everyone has done back slides dirigibles After Hindenburg ashes have cooled screen begin construction own dirigible project Kids instructed day bring styrofoam egg carton now pair up construct blimp Except very small classes find much better assign two kids build ship holds filled balloon other attaches gondola fins made stiff paper will needed wind once flying time arrives cant drop goes ceiling have dickens time getting down use Bill Watson method covering top heliumfilled chase balloon-on-a-string loops sticky tape motor stick use doubles fuselage canard Sleek Streek prop backwards shaft bent around drive prop gondola temporary arrangement since life dirigible couple hours due leakagehelium usually inaccessible kids home fins attached first Magic Mending Scotch tape gondola location determined holding palm hand over top surface balloon find point lift centered gondola goes couple short pieces vinyl electricians tape too much its heavy Modeling clay added level ship aerostatically get hover Note heavy tail fins may require rolling tiny rope clay scotchtaping nose counterbalance Practice necessary get just right inflation too much and. bang enough balloon wont lift weight Just little extra clay added get slow descent single-strand 2-mm rubber motor used power Too much power gives unrealistic steep climb want just enough rotate nose up shallow angle attack forward mo tion balloon will generate dynamic lift dirigible will climb power quits forward motion ceases ship descends balanced teeny bit heavy remember practice classroom free-balloon aerostats now pays off kids habit using wee bits clay altitude changes Taking off too much means ceiling trip flying site Space Museum ceiling about 45 feet Its gorgeous sight watch ing several brightly-colored dirigibles cruising majestically around among rockets satellites Always draws crowd wanting know can buy thing about dirigibles pro ject fly Because crash damage comes once explodes generally retrievalfrom-ceiling operation have four flying sessions three out parking lot outdoor planes museum dirigibles great amount learning takes place flying field constant referral principles covered class much use technical vocabulary object lessons wherever can found have run ning joke Anyone leaves fly12 Model Aviation Author assists young aviator readying X-18 flight Class flies parking lot adjacent Los Angeles Coliseum three times during two-week class session Rest time spent classroom extensive slide shows demonstrations building sorts good stuff Continued page 85 class flying session Coliseum proved good have demonstration models students have either broken forgotten own Boys shown pioneer class late 60s Some kids take science like ducks water Assistant Bill Watson right now bike racing professional model building including man-powered aircraft Letters Editor continued page 60 States Air Force have building flying models since age 13 am enclosing picture planes built flown 1957 Richard Gardner Ft Worth TX AMA has sent Mr Gardner Club Kit Rule Book Membership Applica tion materials free anyone terested joining AMA Take Bow Walt would like take opportunity thank Walt Schoonard excellent column helicopters Model via tion magazine Im sure others will agree Walt has added greatly knowledge interested radio con trol helicopters has made sug gestions improving performance safety helicopters enjoy fly ing much Thank Walt Roger WMay College Place WA CORRECTION delighted presentation article About Size following errata captions describing photos did write reference triple redundant photographers camera required nail down critical spray peaks three dimensions three cameras indeed neces sary Skate model suspended rig balsa metal being carried rig mounted launch about 20 feet long fitted out purpose test being run Estuary small inlet San Diego Bay first paragraph page 11 sev eral places Time t expressed KS should read K Bradford Powers Schoolwork Fun/Warner continued page 12 ing site crashing least plane trying hard enough crash learning takes place stress need carefully ob serve flight Knowing whether plane crashed right spiral left spiral makes world difference what cor rective action take Hypothesize what caused problem test hypothesis making corrections before flying again repeat process try have ask watch first flights successive ones plane doing what should second-opinion method planes get flying better better last session inviting parents come out watch Results really impressive especially about 1000 am thermals start cooking off black-top return classroom critique after session go over common problems Some hardware have built class includes 1/4-hp wind machine demonstrating lift/drag control surfaces spiral propwash demonstrator prop unhooked model able turn freely its longitudinal axis moment-arm balance scale couple blow-between balls toilet-paper tube goodies Bernoulli effect old spooland-card trick thrust-measuring device show relationships between different props different size motors cansmash gallon can steam ping pong ball hair-dryer airstream lots flying demonstrators mentioned earlier product review product review product review ACE 25th Anniversary Catalogue over quarter centry ago Paul Runge founder proprietor ACEalong son Tom re cently Air Forcewas flying RC found like rest pioneer fliers parts almost impossible get Radio Shack Boston Commonplace items components could found big radio sup ply stores day requiring nationwide search such essentials National Coil Forms 3A4 3D6 tubes magnet wire Realizing others sharing problems Runge founded ACE R/C first small ad appearing May 1953 issue Air Trails first catalogue 2-sheet affair printed spirit duplicator new 72-pg ACE catalogue still offers hard-to-get parts also covers kits parts assembly modern reliable gear Contain ing vast array items catalogue costs $100 add 50c first class mail returnl $100 catalogue refundable first order ACE R/C Box 511G Higgins yule MO 64037 product review product review product review Such program can put together almost anywhere form another reasons succeeds well due support California Mu seum Foundation Gerry Richer Summer Science Workshop director give pretty much free hand plan class provide financial moral help Teachers picked because nuts about what doing love job well cant imagine someone being assigned teach class like As other kinds help lots super people will help people like Bill Hannan Art Guenther Tony Naccarato Frank Zaic over country Ask owe great deal model aviation passing some fun kids program can start repaying sides else can get paid playing toy airplanes Sources Supply Helium welding supply store LA 245 cuft bottle costs $35 gas wsth $70 deposit $390/mo rental balloon filler buy $28 Balloons California Toytime Balloon Co 1116 West 7th St San Pedro CA has Zeppelin balloons gross gross regular round balloons about $30 both JASCO X-18 JASCO Box 135 North ridge CA 91324 Ask fleet rate catalog Frank Zaic has other beginners kits too X-18 queen line has rubber too Sleek Streeks almost dime stores toy dealers no luck try manufacturer North Pacific Products Bend Oregon Retail late 1977 $59 ea have two kinds balsa styrofoam wing Take balsa Rubber winders Sterling Models 3620 GSt Philadelphia PA 19134 Brochure Summer Science Workshop winter Exploring Science Sat urdays program teach abridged version Aeroplanes Flying Ma chines class call Uncle Bills Fly ing Circus Available ESS/SSW California State Museum Science Industry 700 State Drive Los Angeles CA 90037 RC Technique/Myers continued page 14 fore brought out separate lead purpose may prefer adapter important thing remember positive lead Rapid charger con nects negative terminal exter nal battery Ive sketched out Fig 3 Fig 4 gives close look metered van-charger available kit ACE R/C Inc Box 511 Higgins ville MO 64037 son Tim 14 years old built about hour unit has MarCh1978 85 KA Jill 1$ ACE l/ inc 90X56W 9HS KGGNSV E MO 6403 99]
Edition: Model Aviation - 1978/03
Page Numbers: 8, 9, 10, 11, 12, 85
Among offered Industry Machines enthusia have years kr over 4 rouna fuji DO YOU KNOW what Humble Buz zard Did know getting hit ear dirigible doesnt hurt Are aware Wilbur Orville really didnt invent aeroplane Maz das dont really have rotary engines Well way gain such priceless knowledge have whale good time boot take Aeroplanes Flying Ma chines class Los Angeles home California Museum Science Indus try Thousands students summer take advantage offerings diverse Marine Ecology Computer Program ming Headed up Gerry Richer Summer Science Workshop program great teachers students alike due simple fact guiding principle making learning fun Everyone gives own special class class would like have young Some classes one-week sessions some two standard period two hours long student can take two dif ferent classes such Animal Behavior morning Rocketry afternoon present operate eight weeks starting week after LA city schools get out Tuition about $30 two-week class such Aeroplanes workshop Although classes young child ren kindergarten up take kids fifth grade twelfth grade general character groups teach would prob ably fall category gifted parents wishing offer enrichment pressure offspring 20 hours disposal trick divide up time between theory building models flying ses sions name game organiza tion can well imagine Well after almost ten years Im getting What makes class fun other just learning new interesting things hav ing success flying something has built ones own two hands kids hard may believe have never used knife other cutting up supper So program has appeal students know zilch about planes thumbs also boy girl genius starts out asking help compute Reynolds Num ber new pattern ship theyre design ing start out slide presentation Ive made up taking slides good airplane pictures wherever can get hands traces history aviation tower jumpers through de Rozier Ader Whitehead etc ending Space Shuttle keep adding get better photos always enjoy seeing too something bores know its going deadly kids use slides illustrate everything parts flying craft its easier show slide vortex generators 707 way rather take field trip airport odd unusual flying March 1978 9 students repeat Aeroplanes class work difficult projects time review basic flight principles Advanced student buNding stick-and-tissue model receive aviation model-building merit badges Boy Scouts taking class Such built-up projects sharpen dexterity Join ing fuselage sides isnt easy Above Ilyable dirigibles delignt Bill Warner demonstrates static ballasting model ing clay give slight descent power applied dirigible moves positive angle attack supplies lift Helium bought commercial supply see text right Tom Nakaki assist ant both winter summer programs Below Gondola dirigible made styrofoam egg carton balsa Sleek Streak propeller machines prefer slides movies due fact can keep can keep pulling out deadwood adding good stuff can pace presentation fit available time have presentation lighter-than-air propulsion powerplants airfoils other as-needed slides end first day building Yelf popular 1/32 sheet polyhedral catapult glider has evolved over years build give kid building board smooth Celotex insulation mater ial 4X8 sheet makes ten 8B X-Acto retractable knife tube Testors cellulose model cement cheapest can find small sanding block bit cardboard cut little book called Flying Golden Press things keep along models may have start cutting down inflation reduc ing buying power $500 lab fee go home end first day completed Yelf resting building board under tables rear huge room former store room basement Space Mu seum encourage students put name item stuff felt pen have tethered front room Saves arguments assume reading persons some interest junior program teachers Scout leaders etc hope some things mostly borrowed ideas will some use question what cover also problem just model building per se would 10 Model Aviation Rogallow flex wing typical projects tried rubber powered year seems stuff hanging around room Di rector Gerry Richer likes bring visitors just see room full nifty junk models display impressive iuoents wino ruoner motor inrusi oynamometer cnec erred different pitch props rubber motors Model building tied understanding science flight support program stress nomencla ture four forces acting airplane flight stability control class divided aerostatics aerodynamics emphasis dy namic flight heavier-than-air try introduce concepts build projects illustrate room has several large tables kids work room left over small demonstration flying area big enough Pennyplane demo ornithopter have unusual demonstrators flying beer can one-winged HLG try have kids come up application principles studying particu lar craft example after demonstrating torque rubber-powered tractor model demonstrate countering force spiral propwash piece demonstra tion apparatus fly pusher canard show much plane wants turn left effects spiral propwash hitting craft turning left counter-torque alone have series simple gliders has no horizontal stab ilizer no vertical tail no di hedral too much short tail moment huge tail surfaces along tail moment teeny surfaces etc kids creativity moves him/her veer project design instance leaving off vertical stabilizer/ rudder will soon find out what happens gets out flying field thats way learn proof pudding flying field large parking lot near Los Angeles Coliseum kid may have paid much attention topic wash-in/wash-out angles incidence covered first time class model returns itself kit form pavement due warped wing forgot ten incidence shim will quite atten tive topic reviewed after flying session line try inspect models before get trouble pointing out problems before become terminal cases-in-point Kids allowed take models home before end class can make incredibly creative errors solidly glued place before see model again attrition rate home also incredible Its neighbors tree ttle brother ate ccoon peed excuses have heard flying day ask kids test models Keep em room have number demonstrators made up kids reason another have noth ing hand fly kids get some social benefit class too forthey have pair up winding purposes take flying site few rubber winders repair supplies extra rubber rubber lube eager beavers constantly trying win workshops coveted certificate Humble Buz zard membership given over-oneminute flights other repair stuff box High-performance important class projects must selected mind well suitability material being learned ease con struction beginners all-sheet planes answer because durable tissue-covered variety certainly easier repair go together fast plane has endured year after year use class JASCO X-18 have built hun dreds fly Frank Zaics work designing producing little gem plus help has provided others doing junior programs has really first-rate last session summer X-18 did over four minutes X-18 useful covering wash-in/ wash-out incidence moments CG CP rudder effect torque next step Super Extended Sleek Streek highlymodified ROG kit useful demonstrat ing cambered airfoil lateral longitud inal stability yes use big words. great kids let drop dinner table Most kids can get minute model keep useful learning flight adjustments effects wing warping since wood Sleek-Streek wings generally warpprone unlike nifty flat C-grain X- 18 Last summer started new project based Sleek Streek pusher canard builds hour flies pretty well over minute Advanced students kids have taken class once encouraged build weirder harder planes such students keep supply HLG rub ber kits ranging Sweepette Peck Polymers Nesmith Cougar Another new glider Yelf III tailless design incorporating tip rudders sweepback reflexed wing tip elevons As class size varies ten 25 students amount time can give working individually advanced students also varies Fortunately SSW provides March 1978 11 r.gnis ike uur-ng uri u. amaze students other summer workshop classes assure gooa enrollment successive classes Model Sig Cub ending 63-second indoor hop John Hughes launches Sig Uncle Sam As re peat student has good projects choose fromPeck Peanut kits Stringless Wonders Square Things various hand-launched gliders ROGs modest fee course teaching assistant present helper Tom Nakaki former Aeroplanes class student now working way through college way aero nautical engineer really need two knowledgeable people group over ten lighter-than-air portion class ball mentioned slide presentation starts hot-air balloons stop slides demonstrate Mont golfi&e made dry-cleaners bag heated over chimney made large apple juice cans four-high soldered together propane torch burning inside Back slides Now light gas Im about play hydrogen balloon tank helium available stop slides aerostatic hovering different altitudes room demonstrating use/effect guide rope heavy string kids get helium balloon string modeling clay ballast time experiment everyone has done back slides dirigibles After Hindenburg ashes have cooled screen begin construction own dirigible project Kids instructed day bring styrofoam egg carton now pair up construct blimp Except very small classes find much better assign two kids build ship holds filled balloon other attaches gondola fins made stiff paper will needed wind once flying time arrives cant drop goes ceiling have dickens time getting down use Bill Watson method covering top heliumfilled chase balloon-on-a-string loops sticky tape motor stick use doubles fuselage canard Sleek Streek prop backwards shaft bent around drive prop gondola temporary arrangement since life dirigible couple hours due leakagehelium usually inaccessible kids home fins attached first Magic Mending Scotch tape gondola location determined holding palm hand over top surface balloon find point lift centered gondola goes couple short pieces vinyl electricians tape too much its heavy Modeling clay added level ship aerostatically get hover Note heavy tail fins may require rolling tiny rope clay scotchtaping nose counterbalance Practice necessary get just right inflation too much and. bang enough balloon wont lift weight Just little extra clay added get slow descent single-strand 2-mm rubber motor used power Too much power gives unrealistic steep climb want just enough rotate nose up shallow angle attack forward mo tion balloon will generate dynamic lift dirigible will climb power quits forward motion ceases ship descends balanced teeny bit heavy remember practice classroom free-balloon aerostats now pays off kids habit using wee bits clay altitude changes Taking off too much means ceiling trip flying site Space Museum ceiling about 45 feet Its gorgeous sight watch ing several brightly-colored dirigibles cruising majestically around among rockets satellites Always draws crowd wanting know can buy thing about dirigibles pro ject fly Because crash damage comes once explodes generally retrievalfrom-ceiling operation have four flying sessions three out parking lot outdoor planes museum dirigibles great amount learning takes place flying field constant referral principles covered class much use technical vocabulary object lessons wherever can found have run ning joke Anyone leaves fly12 Model Aviation Author assists young aviator readying X-18 flight Class flies parking lot adjacent Los Angeles Coliseum three times during two-week class session Rest time spent classroom extensive slide shows demonstrations building sorts good stuff Continued page 85 class flying session Coliseum proved good have demonstration models students have either broken forgotten own Boys shown pioneer class late 60s Some kids take science like ducks water Assistant Bill Watson right now bike racing professional model building including man-powered aircraft Letters Editor continued page 60 States Air Force have building flying models since age 13 am enclosing picture planes built flown 1957 Richard Gardner Ft Worth TX AMA has sent Mr Gardner Club Kit Rule Book Membership Applica tion materials free anyone terested joining AMA Take Bow Walt would like take opportunity thank Walt Schoonard excellent column helicopters Model via tion magazine Im sure others will agree Walt has added greatly knowledge interested radio con trol helicopters has made sug gestions improving performance safety helicopters enjoy fly ing much Thank Walt Roger WMay College Place WA CORRECTION delighted presentation article About Size following errata captions describing photos did write reference triple redundant photographers camera required nail down critical spray peaks three dimensions three cameras indeed neces sary Skate model suspended rig balsa metal being carried rig mounted launch about 20 feet long fitted out purpose test being run Estuary small inlet San Diego Bay first paragraph page 11 sev eral places Time t expressed KS should read K Bradford Powers Schoolwork Fun/Warner continued page 12 ing site crashing least plane trying hard enough crash learning takes place stress need carefully ob serve flight Knowing whether plane crashed right spiral left spiral makes world difference what cor rective action take Hypothesize what caused problem test hypothesis making corrections before flying again repeat process try have ask watch first flights successive ones plane doing what should second-opinion method planes get flying better better last session inviting parents come out watch Results really impressive especially about 1000 am thermals start cooking off black-top return classroom critique after session go over common problems Some hardware have built class includes 1/4-hp wind machine demonstrating lift/drag control surfaces spiral propwash demonstrator prop unhooked model able turn freely its longitudinal axis moment-arm balance scale couple blow-between balls toilet-paper tube goodies Bernoulli effect old spooland-card trick thrust-measuring device show relationships between different props different size motors cansmash gallon can steam ping pong ball hair-dryer airstream lots flying demonstrators mentioned earlier product review product review product review ACE 25th Anniversary Catalogue over quarter centry ago Paul Runge founder proprietor ACEalong son Tom re cently Air Forcewas flying RC found like rest pioneer fliers parts almost impossible get Radio Shack Boston Commonplace items components could found big radio sup ply stores day requiring nationwide search such essentials National Coil Forms 3A4 3D6 tubes magnet wire Realizing others sharing problems Runge founded ACE R/C first small ad appearing May 1953 issue Air Trails first catalogue 2-sheet affair printed spirit duplicator new 72-pg ACE catalogue still offers hard-to-get parts also covers kits parts assembly modern reliable gear Contain ing vast array items catalogue costs $100 add 50c first class mail returnl $100 catalogue refundable first order ACE R/C Box 511G Higgins yule MO 64037 product review product review product review Such program can put together almost anywhere form another reasons succeeds well due support California Mu seum Foundation Gerry Richer Summer Science Workshop director give pretty much free hand plan class provide financial moral help Teachers picked because nuts about what doing love job well cant imagine someone being assigned teach class like As other kinds help lots super people will help people like Bill Hannan Art Guenther Tony Naccarato Frank Zaic over country Ask owe great deal model aviation passing some fun kids program can start repaying sides else can get paid playing toy airplanes Sources Supply Helium welding supply store LA 245 cuft bottle costs $35 gas wsth $70 deposit $390/mo rental balloon filler buy $28 Balloons California Toytime Balloon Co 1116 West 7th St San Pedro CA has Zeppelin balloons gross gross regular round balloons about $30 both JASCO X-18 JASCO Box 135 North ridge CA 91324 Ask fleet rate catalog Frank Zaic has other beginners kits too X-18 queen line has rubber too Sleek Streeks almost dime stores toy dealers no luck try manufacturer North Pacific Products Bend Oregon Retail late 1977 $59 ea have two kinds balsa styrofoam wing Take balsa Rubber winders Sterling Models 3620 GSt Philadelphia PA 19134 Brochure Summer Science Workshop winter Exploring Science Sat urdays program teach abridged version Aeroplanes Flying Ma chines class call Uncle Bills Fly ing Circus Available ESS/SSW California State Museum Science Industry 700 State Drive Los Angeles CA 90037 RC Technique/Myers continued page 14 fore brought out separate lead purpose may prefer adapter important thing remember positive lead Rapid charger con nects negative terminal exter nal battery Ive sketched out Fig 3 Fig 4 gives close look metered van-charger available kit ACE R/C Inc Box 511 Higgins ville MO 64037 son Tim 14 years old built about hour unit has MarCh1978 85 KA Jill 1$ ACE l/ inc 90X56W 9HS KGGNSV E MO 6403 99]
Edition: Model Aviation - 1978/03
Page Numbers: 8, 9, 10, 11, 12, 85
Among offered Industry Machines enthusia have years kr over 4 rouna fuji DO YOU KNOW what Humble Buz zard Did know getting hit ear dirigible doesnt hurt Are aware Wilbur Orville really didnt invent aeroplane Maz das dont really have rotary engines Well way gain such priceless knowledge have whale good time boot take Aeroplanes Flying Ma chines class Los Angeles home California Museum Science Indus try Thousands students summer take advantage offerings diverse Marine Ecology Computer Program ming Headed up Gerry Richer Summer Science Workshop program great teachers students alike due simple fact guiding principle making learning fun Everyone gives own special class class would like have young Some classes one-week sessions some two standard period two hours long student can take two dif ferent classes such Animal Behavior morning Rocketry afternoon present operate eight weeks starting week after LA city schools get out Tuition about $30 two-week class such Aeroplanes workshop Although classes young child ren kindergarten up take kids fifth grade twelfth grade general character groups teach would prob ably fall category gifted parents wishing offer enrichment pressure offspring 20 hours disposal trick divide up time between theory building models flying ses sions name game organiza tion can well imagine Well after almost ten years Im getting What makes class fun other just learning new interesting things hav ing success flying something has built ones own two hands kids hard may believe have never used knife other cutting up supper So program has appeal students know zilch about planes thumbs also boy girl genius starts out asking help compute Reynolds Num ber new pattern ship theyre design ing start out slide presentation Ive made up taking slides good airplane pictures wherever can get hands traces history aviation tower jumpers through de Rozier Ader Whitehead etc ending Space Shuttle keep adding get better photos always enjoy seeing too something bores know its going deadly kids use slides illustrate everything parts flying craft its easier show slide vortex generators 707 way rather take field trip airport odd unusual flying March 1978 9 students repeat Aeroplanes class work difficult projects time review basic flight principles Advanced student buNding stick-and-tissue model receive aviation model-building merit badges Boy Scouts taking class Such built-up projects sharpen dexterity Join ing fuselage sides isnt easy Above Ilyable dirigibles delignt Bill Warner demonstrates static ballasting model ing clay give slight descent power applied dirigible moves positive angle attack supplies lift Helium bought commercial supply see text right Tom Nakaki assist ant both winter summer programs Below Gondola dirigible made styrofoam egg carton balsa Sleek Streak propeller machines prefer slides movies due fact can keep can keep pulling out deadwood adding good stuff can pace presentation fit available time have presentation lighter-than-air propulsion powerplants airfoils other as-needed slides end first day building Yelf popular 1/32 sheet polyhedral catapult glider has evolved over years build give kid building board smooth Celotex insulation mater ial 4X8 sheet makes ten 8B X-Acto retractable knife tube Testors cellulose model cement cheapest can find small sanding block bit cardboard cut little book called Flying Golden Press things keep along models may have start cutting down inflation reduc ing buying power $500 lab fee go home end first day completed Yelf resting building board under tables rear huge room former store room basement Space Mu seum encourage students put name item stuff felt pen have tethered front room Saves arguments assume reading persons some interest junior program teachers Scout leaders etc hope some things mostly borrowed ideas will some use question what cover also problem just model building per se would 10 Model Aviation Rogallow flex wing typical projects tried rubber powered year seems stuff hanging around room Di rector Gerry Richer likes bring visitors just see room full nifty junk models display impressive iuoents wino ruoner motor inrusi oynamometer cnec erred different pitch props rubber motors Model building tied understanding science flight support program stress nomencla ture four forces acting airplane flight stability control class divided aerostatics aerodynamics emphasis dy namic flight heavier-than-air try introduce concepts build projects illustrate room has several large tables kids work room left over small demonstration flying area big enough Pennyplane demo ornithopter have unusual demonstrators flying beer can one-winged HLG try have kids come up application principles studying particu lar craft example after demonstrating torque rubber-powered tractor model demonstrate countering force spiral propwash piece demonstra tion apparatus fly pusher canard show much plane wants turn left effects spiral propwash hitting craft turning left counter-torque alone have series simple gliders has no horizontal stab ilizer no vertical tail no di hedral too much short tail moment huge tail surfaces along tail moment teeny surfaces etc kids creativity moves him/her veer project design instance leaving off vertical stabilizer/ rudder will soon find out what happens gets out flying field thats way learn proof pudding flying field large parking lot near Los Angeles Coliseum kid may have paid much attention topic wash-in/wash-out angles incidence covered first time class model returns itself kit form pavement due warped wing forgot ten incidence shim will quite atten tive topic reviewed after flying session line try inspect models before get trouble pointing out problems before become terminal cases-in-point Kids allowed take models home before end class can make incredibly creative errors solidly glued place before see model again attrition rate home also incredible Its neighbors tree ttle brother ate ccoon peed excuses have heard flying day ask kids test models Keep em room have number demonstrators made up kids reason another have noth ing hand fly kids get some social benefit class too forthey have pair up winding purposes take flying site few rubber winders repair supplies extra rubber rubber lube eager beavers constantly trying win workshops coveted certificate Humble Buz zard membership given over-oneminute flights other repair stuff box High-performance important class projects must selected mind well suitability material being learned ease con struction beginners all-sheet planes answer because durable tissue-covered variety certainly easier repair go together fast plane has endured year after year use class JASCO X-18 have built hun dreds fly Frank Zaics work designing producing little gem plus help has provided others doing junior programs has really first-rate last session summer X-18 did over four minutes X-18 useful covering wash-in/ wash-out incidence moments CG CP rudder effect torque next step Super Extended Sleek Streek highlymodified ROG kit useful demonstrat ing cambered airfoil lateral longitud inal stability yes use big words. great kids let drop dinner table Most kids can get minute model keep useful learning flight adjustments effects wing warping since wood Sleek-Streek wings generally warpprone unlike nifty flat C-grain X- 18 Last summer started new project based Sleek Streek pusher canard builds hour flies pretty well over minute Advanced students kids have taken class once encouraged build weirder harder planes such students keep supply HLG rub ber kits ranging Sweepette Peck Polymers Nesmith Cougar Another new glider Yelf III tailless design incorporating tip rudders sweepback reflexed wing tip elevons As class size varies ten 25 students amount time can give working individually advanced students also varies Fortunately SSW provides March 1978 11 r.gnis ike uur-ng uri u. amaze students other summer workshop classes assure gooa enrollment successive classes Model Sig Cub ending 63-second indoor hop John Hughes launches Sig Uncle Sam As re peat student has good projects choose fromPeck Peanut kits Stringless Wonders Square Things various hand-launched gliders ROGs modest fee course teaching assistant present helper Tom Nakaki former Aeroplanes class student now working way through college way aero nautical engineer really need two knowledgeable people group over ten lighter-than-air portion class ball mentioned slide presentation starts hot-air balloons stop slides demonstrate Mont golfi&e made dry-cleaners bag heated over chimney made large apple juice cans four-high soldered together propane torch burning inside Back slides Now light gas Im about play hydrogen balloon tank helium available stop slides aerostatic hovering different altitudes room demonstrating use/effect guide rope heavy string kids get helium balloon string modeling clay ballast time experiment everyone has done back slides dirigibles After Hindenburg ashes have cooled screen begin construction own dirigible project Kids instructed day bring styrofoam egg carton now pair up construct blimp Except very small classes find much better assign two kids build ship holds filled balloon other attaches gondola fins made stiff paper will needed wind once flying time arrives cant drop goes ceiling have dickens time getting down use Bill Watson method covering top heliumfilled chase balloon-on-a-string loops sticky tape motor stick use doubles fuselage canard Sleek Streek prop backwards shaft bent around drive prop gondola temporary arrangement since life dirigible couple hours due leakagehelium usually inaccessible kids home fins attached first Magic Mending Scotch tape gondola location determined holding palm hand over top surface balloon find point lift centered gondola goes couple short pieces vinyl electricians tape too much its heavy Modeling clay added level ship aerostatically get hover Note heavy tail fins may require rolling tiny rope clay scotchtaping nose counterbalance Practice necessary get just right inflation too much and. bang enough balloon wont lift weight Just little extra clay added get slow descent single-strand 2-mm rubber motor used power Too much power gives unrealistic steep climb want just enough rotate nose up shallow angle attack forward mo tion balloon will generate dynamic lift dirigible will climb power quits forward motion ceases ship descends balanced teeny bit heavy remember practice classroom free-balloon aerostats now pays off kids habit using wee bits clay altitude changes Taking off too much means ceiling trip flying site Space Museum ceiling about 45 feet Its gorgeous sight watch ing several brightly-colored dirigibles cruising majestically around among rockets satellites Always draws crowd wanting know can buy thing about dirigibles pro ject fly Because crash damage comes once explodes generally retrievalfrom-ceiling operation have four flying sessions three out parking lot outdoor planes museum dirigibles great amount learning takes place flying field constant referral principles covered class much use technical vocabulary object lessons wherever can found have run ning joke Anyone leaves fly12 Model Aviation Author assists young aviator readying X-18 flight Class flies parking lot adjacent Los Angeles Coliseum three times during two-week class session Rest time spent classroom extensive slide shows demonstrations building sorts good stuff Continued page 85 class flying session Coliseum proved good have demonstration models students have either broken forgotten own Boys shown pioneer class late 60s Some kids take science like ducks water Assistant Bill Watson right now bike racing professional model building including man-powered aircraft Letters Editor continued page 60 States Air Force have building flying models since age 13 am enclosing picture planes built flown 1957 Richard Gardner Ft Worth TX AMA has sent Mr Gardner Club Kit Rule Book Membership Applica tion materials free anyone terested joining AMA Take Bow Walt would like take opportunity thank Walt Schoonard excellent column helicopters Model via tion magazine Im sure others will agree Walt has added greatly knowledge interested radio con trol helicopters has made sug gestions improving performance safety helicopters enjoy fly ing much Thank Walt Roger WMay College Place WA CORRECTION delighted presentation article About Size following errata captions describing photos did write reference triple redundant photographers camera required nail down critical spray peaks three dimensions three cameras indeed neces sary Skate model suspended rig balsa metal being carried rig mounted launch about 20 feet long fitted out purpose test being run Estuary small inlet San Diego Bay first paragraph page 11 sev eral places Time t expressed KS should read K Bradford Powers Schoolwork Fun/Warner continued page 12 ing site crashing least plane trying hard enough crash learning takes place stress need carefully ob serve flight Knowing whether plane crashed right spiral left spiral makes world difference what cor rective action take Hypothesize what caused problem test hypothesis making corrections before flying again repeat process try have ask watch first flights successive ones plane doing what should second-opinion method planes get flying better better last session inviting parents come out watch Results really impressive especially about 1000 am thermals start cooking off black-top return classroom critique after session go over common problems Some hardware have built class includes 1/4-hp wind machine demonstrating lift/drag control surfaces spiral propwash demonstrator prop unhooked model able turn freely its longitudinal axis moment-arm balance scale couple blow-between balls toilet-paper tube goodies Bernoulli effect old spooland-card trick thrust-measuring device show relationships between different props different size motors cansmash gallon can steam ping pong ball hair-dryer airstream lots flying demonstrators mentioned earlier product review product review product review ACE 25th Anniversary Catalogue over quarter centry ago Paul Runge founder proprietor ACEalong son Tom re cently Air Forcewas flying RC found like rest pioneer fliers parts almost impossible get Radio Shack Boston Commonplace items components could found big radio sup ply stores day requiring nationwide search such essentials National Coil Forms 3A4 3D6 tubes magnet wire Realizing others sharing problems Runge founded ACE R/C first small ad appearing May 1953 issue Air Trails first catalogue 2-sheet affair printed spirit duplicator new 72-pg ACE catalogue still offers hard-to-get parts also covers kits parts assembly modern reliable gear Contain ing vast array items catalogue costs $100 add 50c first class mail returnl $100 catalogue refundable first order ACE R/C Box 511G Higgins yule MO 64037 product review product review product review Such program can put together almost anywhere form another reasons succeeds well due support California Mu seum Foundation Gerry Richer Summer Science Workshop director give pretty much free hand plan class provide financial moral help Teachers picked because nuts about what doing love job well cant imagine someone being assigned teach class like As other kinds help lots super people will help people like Bill Hannan Art Guenther Tony Naccarato Frank Zaic over country Ask owe great deal model aviation passing some fun kids program can start repaying sides else can get paid playing toy airplanes Sources Supply Helium welding supply store LA 245 cuft bottle costs $35 gas wsth $70 deposit $390/mo rental balloon filler buy $28 Balloons California Toytime Balloon Co 1116 West 7th St San Pedro CA has Zeppelin balloons gross gross regular round balloons about $30 both JASCO X-18 JASCO Box 135 North ridge CA 91324 Ask fleet rate catalog Frank Zaic has other beginners kits too X-18 queen line has rubber too Sleek Streeks almost dime stores toy dealers no luck try manufacturer North Pacific Products Bend Oregon Retail late 1977 $59 ea have two kinds balsa styrofoam wing Take balsa Rubber winders Sterling Models 3620 GSt Philadelphia PA 19134 Brochure Summer Science Workshop winter Exploring Science Sat urdays program teach abridged version Aeroplanes Flying Ma chines class call Uncle Bills Fly ing Circus Available ESS/SSW California State Museum Science Industry 700 State Drive Los Angeles CA 90037 RC Technique/Myers continued page 14 fore brought out separate lead purpose may prefer adapter important thing remember positive lead Rapid charger con nects negative terminal exter nal battery Ive sketched out Fig 3 Fig 4 gives close look metered van-charger available kit ACE R/C Inc Box 511 Higgins ville MO 64037 son Tim 14 years old built about hour unit has MarCh1978 85 KA Jill 1$ ACE l/ inc 90X56W 9HS KGGNSV E MO 6403 99]
Edition: Model Aviation - 1978/03
Page Numbers: 8, 9, 10, 11, 12, 85
Among offered Industry Machines enthusia have years kr over 4 rouna fuji DO YOU KNOW what Humble Buz zard Did know getting hit ear dirigible doesnt hurt Are aware Wilbur Orville really didnt invent aeroplane Maz das dont really have rotary engines Well way gain such priceless knowledge have whale good time boot take Aeroplanes Flying Ma chines class Los Angeles home California Museum Science Indus try Thousands students summer take advantage offerings diverse Marine Ecology Computer Program ming Headed up Gerry Richer Summer Science Workshop program great teachers students alike due simple fact guiding principle making learning fun Everyone gives own special class class would like have young Some classes one-week sessions some two standard period two hours long student can take two dif ferent classes such Animal Behavior morning Rocketry afternoon present operate eight weeks starting week after LA city schools get out Tuition about $30 two-week class such Aeroplanes workshop Although classes young child ren kindergarten up take kids fifth grade twelfth grade general character groups teach would prob ably fall category gifted parents wishing offer enrichment pressure offspring 20 hours disposal trick divide up time between theory building models flying ses sions name game organiza tion can well imagine Well after almost ten years Im getting What makes class fun other just learning new interesting things hav ing success flying something has built ones own two hands kids hard may believe have never used knife other cutting up supper So program has appeal students know zilch about planes thumbs also boy girl genius starts out asking help compute Reynolds Num ber new pattern ship theyre design ing start out slide presentation Ive made up taking slides good airplane pictures wherever can get hands traces history aviation tower jumpers through de Rozier Ader Whitehead etc ending Space Shuttle keep adding get better photos always enjoy seeing too something bores know its going deadly kids use slides illustrate everything parts flying craft its easier show slide vortex generators 707 way rather take field trip airport odd unusual flying March 1978 9 students repeat Aeroplanes class work difficult projects time review basic flight principles Advanced student buNding stick-and-tissue model receive aviation model-building merit badges Boy Scouts taking class Such built-up projects sharpen dexterity Join ing fuselage sides isnt easy Above Ilyable dirigibles delignt Bill Warner demonstrates static ballasting model ing clay give slight descent power applied dirigible moves positive angle attack supplies lift Helium bought commercial supply see text right Tom Nakaki assist ant both winter summer programs Below Gondola dirigible made styrofoam egg carton balsa Sleek Streak propeller machines prefer slides movies due fact can keep can keep pulling out deadwood adding good stuff can pace presentation fit available time have presentation lighter-than-air propulsion powerplants airfoils other as-needed slides end first day building Yelf popular 1/32 sheet polyhedral catapult glider has evolved over years build give kid building board smooth Celotex insulation mater ial 4X8 sheet makes ten 8B X-Acto retractable knife tube Testors cellulose model cement cheapest can find small sanding block bit cardboard cut little book called Flying Golden Press things keep along models may have start cutting down inflation reduc ing buying power $500 lab fee go home end first day completed Yelf resting building board under tables rear huge room former store room basement Space Mu seum encourage students put name item stuff felt pen have tethered front room Saves arguments assume reading persons some interest junior program teachers Scout leaders etc hope some things mostly borrowed ideas will some use question what cover also problem just model building per se would 10 Model Aviation Rogallow flex wing typical projects tried rubber powered year seems stuff hanging around room Di rector Gerry Richer likes bring visitors just see room full nifty junk models display impressive iuoents wino ruoner motor inrusi oynamometer cnec erred different pitch props rubber motors Model building tied understanding science flight support program stress nomencla ture four forces acting airplane flight stability control class divided aerostatics aerodynamics emphasis dy namic flight heavier-than-air try introduce concepts build projects illustrate room has several large tables kids work room left over small demonstration flying area big enough Pennyplane demo ornithopter have unusual demonstrators flying beer can one-winged HLG try have kids come up application principles studying particu lar craft example after demonstrating torque rubber-powered tractor model demonstrate countering force spiral propwash piece demonstra tion apparatus fly pusher canard show much plane wants turn left effects spiral propwash hitting craft turning left counter-torque alone have series simple gliders has no horizontal stab ilizer no vertical tail no di hedral too much short tail moment huge tail surfaces along tail moment teeny surfaces etc kids creativity moves him/her veer project design instance leaving off vertical stabilizer/ rudder will soon find out what happens gets out flying field thats way learn proof pudding flying field large parking lot near Los Angeles Coliseum kid may have paid much attention topic wash-in/wash-out angles incidence covered first time class model returns itself kit form pavement due warped wing forgot ten incidence shim will quite atten tive topic reviewed after flying session line try inspect models before get trouble pointing out problems before become terminal cases-in-point Kids allowed take models home before end class can make incredibly creative errors solidly glued place before see model again attrition rate home also incredible Its neighbors tree ttle brother ate ccoon peed excuses have heard flying day ask kids test models Keep em room have number demonstrators made up kids reason another have noth ing hand fly kids get some social benefit class too forthey have pair up winding purposes take flying site few rubber winders repair supplies extra rubber rubber lube eager beavers constantly trying win workshops coveted certificate Humble Buz zard membership given over-oneminute flights other repair stuff box High-performance important class projects must selected mind well suitability material being learned ease con struction beginners all-sheet planes answer because durable tissue-covered variety certainly easier repair go together fast plane has endured year after year use class JASCO X-18 have built hun dreds fly Frank Zaics work designing producing little gem plus help has provided others doing junior programs has really first-rate last session summer X-18 did over four minutes X-18 useful covering wash-in/ wash-out incidence moments CG CP rudder effect torque next step Super Extended Sleek Streek highlymodified ROG kit useful demonstrat ing cambered airfoil lateral longitud inal stability yes use big words. great kids let drop dinner table Most kids can get minute model keep useful learning flight adjustments effects wing warping since wood Sleek-Streek wings generally warpprone unlike nifty flat C-grain X- 18 Last summer started new project based Sleek Streek pusher canard builds hour flies pretty well over minute Advanced students kids have taken class once encouraged build weirder harder planes such students keep supply HLG rub ber kits ranging Sweepette Peck Polymers Nesmith Cougar Another new glider Yelf III tailless design incorporating tip rudders sweepback reflexed wing tip elevons As class size varies ten 25 students amount time can give working individually advanced students also varies Fortunately SSW provides March 1978 11 r.gnis ike uur-ng uri u. amaze students other summer workshop classes assure gooa enrollment successive classes Model Sig Cub ending 63-second indoor hop John Hughes launches Sig Uncle Sam As re peat student has good projects choose fromPeck Peanut kits Stringless Wonders Square Things various hand-launched gliders ROGs modest fee course teaching assistant present helper Tom Nakaki former Aeroplanes class student now working way through college way aero nautical engineer really need two knowledgeable people group over ten lighter-than-air portion class ball mentioned slide presentation starts hot-air balloons stop slides demonstrate Mont golfi&e made dry-cleaners bag heated over chimney made large apple juice cans four-high soldered together propane torch burning inside Back slides Now light gas Im about play hydrogen balloon tank helium available stop slides aerostatic hovering different altitudes room demonstrating use/effect guide rope heavy string kids get helium balloon string modeling clay ballast time experiment everyone has done back slides dirigibles After Hindenburg ashes have cooled screen begin construction own dirigible project Kids instructed day bring styrofoam egg carton now pair up construct blimp Except very small classes find much better assign two kids build ship holds filled balloon other attaches gondola fins made stiff paper will needed wind once flying time arrives cant drop goes ceiling have dickens time getting down use Bill Watson method covering top heliumfilled chase balloon-on-a-string loops sticky tape motor stick use doubles fuselage canard Sleek Streek prop backwards shaft bent around drive prop gondola temporary arrangement since life dirigible couple hours due leakagehelium usually inaccessible kids home fins attached first Magic Mending Scotch tape gondola location determined holding palm hand over top surface balloon find point lift centered gondola goes couple short pieces vinyl electricians tape too much its heavy Modeling clay added level ship aerostatically get hover Note heavy tail fins may require rolling tiny rope clay scotchtaping nose counterbalance Practice necessary get just right inflation too much and. bang enough balloon wont lift weight Just little extra clay added get slow descent single-strand 2-mm rubber motor used power Too much power gives unrealistic steep climb want just enough rotate nose up shallow angle attack forward mo tion balloon will generate dynamic lift dirigible will climb power quits forward motion ceases ship descends balanced teeny bit heavy remember practice classroom free-balloon aerostats now pays off kids habit using wee bits clay altitude changes Taking off too much means ceiling trip flying site Space Museum ceiling about 45 feet Its gorgeous sight watch ing several brightly-colored dirigibles cruising majestically around among rockets satellites Always draws crowd wanting know can buy thing about dirigibles pro ject fly Because crash damage comes once explodes generally retrievalfrom-ceiling operation have four flying sessions three out parking lot outdoor planes museum dirigibles great amount learning takes place flying field constant referral principles covered class much use technical vocabulary object lessons wherever can found have run ning joke Anyone leaves fly12 Model Aviation Author assists young aviator readying X-18 flight Class flies parking lot adjacent Los Angeles Coliseum three times during two-week class session Rest time spent classroom extensive slide shows demonstrations building sorts good stuff Continued page 85 class flying session Coliseum proved good have demonstration models students have either broken forgotten own Boys shown pioneer class late 60s Some kids take science like ducks water Assistant Bill Watson right now bike racing professional model building including man-powered aircraft Letters Editor continued page 60 States Air Force have building flying models since age 13 am enclosing picture planes built flown 1957 Richard Gardner Ft Worth TX AMA has sent Mr Gardner Club Kit Rule Book Membership Applica tion materials free anyone terested joining AMA Take Bow Walt would like take opportunity thank Walt Schoonard excellent column helicopters Model via tion magazine Im sure others will agree Walt has added greatly knowledge interested radio con trol helicopters has made sug gestions improving performance safety helicopters enjoy fly ing much Thank Walt Roger WMay College Place WA CORRECTION delighted presentation article About Size following errata captions describing photos did write reference triple redundant photographers camera required nail down critical spray peaks three dimensions three cameras indeed neces sary Skate model suspended rig balsa metal being carried rig mounted launch about 20 feet long fitted out purpose test being run Estuary small inlet San Diego Bay first paragraph page 11 sev eral places Time t expressed KS should read K Bradford Powers Schoolwork Fun/Warner continued page 12 ing site crashing least plane trying hard enough crash learning takes place stress need carefully ob serve flight Knowing whether plane crashed right spiral left spiral makes world difference what cor rective action take Hypothesize what caused problem test hypothesis making corrections before flying again repeat process try have ask watch first flights successive ones plane doing what should second-opinion method planes get flying better better last session inviting parents come out watch Results really impressive especially about 1000 am thermals start cooking off black-top return classroom critique after session go over common problems Some hardware have built class includes 1/4-hp wind machine demonstrating lift/drag control surfaces spiral propwash demonstrator prop unhooked model able turn freely its longitudinal axis moment-arm balance scale couple blow-between balls toilet-paper tube goodies Bernoulli effect old spooland-card trick thrust-measuring device show relationships between different props different size motors cansmash gallon can steam ping pong ball hair-dryer airstream lots flying demonstrators mentioned earlier product review product review product review ACE 25th Anniversary Catalogue over quarter centry ago Paul Runge founder proprietor ACEalong son Tom re cently Air Forcewas flying RC found like rest pioneer fliers parts almost impossible get Radio Shack Boston Commonplace items components could found big radio sup ply stores day requiring nationwide search such essentials National Coil Forms 3A4 3D6 tubes magnet wire Realizing others sharing problems Runge founded ACE R/C first small ad appearing May 1953 issue Air Trails first catalogue 2-sheet affair printed spirit duplicator new 72-pg ACE catalogue still offers hard-to-get parts also covers kits parts assembly modern reliable gear Contain ing vast array items catalogue costs $100 add 50c first class mail returnl $100 catalogue refundable first order ACE R/C Box 511G Higgins yule MO 64037 product review product review product review Such program can put together almost anywhere form another reasons succeeds well due support California Mu seum Foundation Gerry Richer Summer Science Workshop director give pretty much free hand plan class provide financial moral help Teachers picked because nuts about what doing love job well cant imagine someone being assigned teach class like As other kinds help lots super people will help people like Bill Hannan Art Guenther Tony Naccarato Frank Zaic over country Ask owe great deal model aviation passing some fun kids program can start repaying sides else can get paid playing toy airplanes Sources Supply Helium welding supply store LA 245 cuft bottle costs $35 gas wsth $70 deposit $390/mo rental balloon filler buy $28 Balloons California Toytime Balloon Co 1116 West 7th St San Pedro CA has Zeppelin balloons gross gross regular round balloons about $30 both JASCO X-18 JASCO Box 135 North ridge CA 91324 Ask fleet rate catalog Frank Zaic has other beginners kits too X-18 queen line has rubber too Sleek Streeks almost dime stores toy dealers no luck try manufacturer North Pacific Products Bend Oregon Retail late 1977 $59 ea have two kinds balsa styrofoam wing Take balsa Rubber winders Sterling Models 3620 GSt Philadelphia PA 19134 Brochure Summer Science Workshop winter Exploring Science Sat urdays program teach abridged version Aeroplanes Flying Ma chines class call Uncle Bills Fly ing Circus Available ESS/SSW California State Museum Science Industry 700 State Drive Los Angeles CA 90037 RC Technique/Myers continued page 14 fore brought out separate lead purpose may prefer adapter important thing remember positive lead Rapid charger con nects negative terminal exter nal battery Ive sketched out Fig 3 Fig 4 gives close look metered van-charger available kit ACE R/C Inc Box 511 Higgins ville MO 64037 son Tim 14 years old built about hour unit has MarCh1978 85 KA Jill 1$ ACE l/ inc 90X56W 9HS KGGNSV E MO 6403 99]
Edition: Model Aviation - 1978/03
Page Numbers: 8, 9, 10, 11, 12, 85
Among offered Industry Machines enthusia have years kr over 4 rouna fuji DO YOU KNOW what Humble Buz zard Did know getting hit ear dirigible doesnt hurt Are aware Wilbur Orville really didnt invent aeroplane Maz das dont really have rotary engines Well way gain such priceless knowledge have whale good time boot take Aeroplanes Flying Ma chines class Los Angeles home California Museum Science Indus try Thousands students summer take advantage offerings diverse Marine Ecology Computer Program ming Headed up Gerry Richer Summer Science Workshop program great teachers students alike due simple fact guiding principle making learning fun Everyone gives own special class class would like have young Some classes one-week sessions some two standard period two hours long student can take two dif ferent classes such Animal Behavior morning Rocketry afternoon present operate eight weeks starting week after LA city schools get out Tuition about $30 two-week class such Aeroplanes workshop Although classes young child ren kindergarten up take kids fifth grade twelfth grade general character groups teach would prob ably fall category gifted parents wishing offer enrichment pressure offspring 20 hours disposal trick divide up time between theory building models flying ses sions name game organiza tion can well imagine Well after almost ten years Im getting What makes class fun other just learning new interesting things hav ing success flying something has built ones own two hands kids hard may believe have never used knife other cutting up supper So program has appeal students know zilch about planes thumbs also boy girl genius starts out asking help compute Reynolds Num ber new pattern ship theyre design ing start out slide presentation Ive made up taking slides good airplane pictures wherever can get hands traces history aviation tower jumpers through de Rozier Ader Whitehead etc ending Space Shuttle keep adding get better photos always enjoy seeing too something bores know its going deadly kids use slides illustrate everything parts flying craft its easier show slide vortex generators 707 way rather take field trip airport odd unusual flying March 1978 9 students repeat Aeroplanes class work difficult projects time review basic flight principles Advanced student buNding stick-and-tissue model receive aviation model-building merit badges Boy Scouts taking class Such built-up projects sharpen dexterity Join ing fuselage sides isnt easy Above Ilyable dirigibles delignt Bill Warner demonstrates static ballasting model ing clay give slight descent power applied dirigible moves positive angle attack supplies lift Helium bought commercial supply see text right Tom Nakaki assist ant both winter summer programs Below Gondola dirigible made styrofoam egg carton balsa Sleek Streak propeller machines prefer slides movies due fact can keep can keep pulling out deadwood adding good stuff can pace presentation fit available time have presentation lighter-than-air propulsion powerplants airfoils other as-needed slides end first day building Yelf popular 1/32 sheet polyhedral catapult glider has evolved over years build give kid building board smooth Celotex insulation mater ial 4X8 sheet makes ten 8B X-Acto retractable knife tube Testors cellulose model cement cheapest can find small sanding block bit cardboard cut little book called Flying Golden Press things keep along models may have start cutting down inflation reduc ing buying power $500 lab fee go home end first day completed Yelf resting building board under tables rear huge room former store room basement Space Mu seum encourage students put name item stuff felt pen have tethered front room Saves arguments assume reading persons some interest junior program teachers Scout leaders etc hope some things mostly borrowed ideas will some use question what cover also problem just model building per se would 10 Model Aviation Rogallow flex wing typical projects tried rubber powered year seems stuff hanging around room Di rector Gerry Richer likes bring visitors just see room full nifty junk models display impressive iuoents wino ruoner motor inrusi oynamometer cnec erred different pitch props rubber motors Model building tied understanding science flight support program stress nomencla ture four forces acting airplane flight stability control class divided aerostatics aerodynamics emphasis dy namic flight heavier-than-air try introduce concepts build projects illustrate room has several large tables kids work room left over small demonstration flying area big enough Pennyplane demo ornithopter have unusual demonstrators flying beer can one-winged HLG try have kids come up application principles studying particu lar craft example after demonstrating torque rubber-powered tractor model demonstrate countering force spiral propwash piece demonstra tion apparatus fly pusher canard show much plane wants turn left effects spiral propwash hitting craft turning left counter-torque alone have series simple gliders has no horizontal stab ilizer no vertical tail no di hedral too much short tail moment huge tail surfaces along tail moment teeny surfaces etc kids creativity moves him/her veer project design instance leaving off vertical stabilizer/ rudder will soon find out what happens gets out flying field thats way learn proof pudding flying field large parking lot near Los Angeles Coliseum kid may have paid much attention topic wash-in/wash-out angles incidence covered first time class model returns itself kit form pavement due warped wing forgot ten incidence shim will quite atten tive topic reviewed after flying session line try inspect models before get trouble pointing out problems before become terminal cases-in-point Kids allowed take models home before end class can make incredibly creative errors solidly glued place before see model again attrition rate home also incredible Its neighbors tree ttle brother ate ccoon peed excuses have heard flying day ask kids test models Keep em room have number demonstrators made up kids reason another have noth ing hand fly kids get some social benefit class too forthey have pair up winding purposes take flying site few rubber winders repair supplies extra rubber rubber lube eager beavers constantly trying win workshops coveted certificate Humble Buz zard membership given over-oneminute flights other repair stuff box High-performance important class projects must selected mind well suitability material being learned ease con struction beginners all-sheet planes answer because durable tissue-covered variety certainly easier repair go together fast plane has endured year after year use class JASCO X-18 have built hun dreds fly Frank Zaics work designing producing little gem plus help has provided others doing junior programs has really first-rate last session summer X-18 did over four minutes X-18 useful covering wash-in/ wash-out incidence moments CG CP rudder effect torque next step Super Extended Sleek Streek highlymodified ROG kit useful demonstrat ing cambered airfoil lateral longitud inal stability yes use big words. great kids let drop dinner table Most kids can get minute model keep useful learning flight adjustments effects wing warping since wood Sleek-Streek wings generally warpprone unlike nifty flat C-grain X- 18 Last summer started new project based Sleek Streek pusher canard builds hour flies pretty well over minute Advanced students kids have taken class once encouraged build weirder harder planes such students keep supply HLG rub ber kits ranging Sweepette Peck Polymers Nesmith Cougar Another new glider Yelf III tailless design incorporating tip rudders sweepback reflexed wing tip elevons As class size varies ten 25 students amount time can give working individually advanced students also varies Fortunately SSW provides March 1978 11 r.gnis ike uur-ng uri u. amaze students other summer workshop classes assure gooa enrollment successive classes Model Sig Cub ending 63-second indoor hop John Hughes launches Sig Uncle Sam As re peat student has good projects choose fromPeck Peanut kits Stringless Wonders Square Things various hand-launched gliders ROGs modest fee course teaching assistant present helper Tom Nakaki former Aeroplanes class student now working way through college way aero nautical engineer really need two knowledgeable people group over ten lighter-than-air portion class ball mentioned slide presentation starts hot-air balloons stop slides demonstrate Mont golfi&e made dry-cleaners bag heated over chimney made large apple juice cans four-high soldered together propane torch burning inside Back slides Now light gas Im about play hydrogen balloon tank helium available stop slides aerostatic hovering different altitudes room demonstrating use/effect guide rope heavy string kids get helium balloon string modeling clay ballast time experiment everyone has done back slides dirigibles After Hindenburg ashes have cooled screen begin construction own dirigible project Kids instructed day bring styrofoam egg carton now pair up construct blimp Except very small classes find much better assign two kids build ship holds filled balloon other attaches gondola fins made stiff paper will needed wind once flying time arrives cant drop goes ceiling have dickens time getting down use Bill Watson method covering top heliumfilled chase balloon-on-a-string loops sticky tape motor stick use doubles fuselage canard Sleek Streek prop backwards shaft bent around drive prop gondola temporary arrangement since life dirigible couple hours due leakagehelium usually inaccessible kids home fins attached first Magic Mending Scotch tape gondola location determined holding palm hand over top surface balloon find point lift centered gondola goes couple short pieces vinyl electricians tape too much its heavy Modeling clay added level ship aerostatically get hover Note heavy tail fins may require rolling tiny rope clay scotchtaping nose counterbalance Practice necessary get just right inflation too much and. bang enough balloon wont lift weight Just little extra clay added get slow descent single-strand 2-mm rubber motor used power Too much power gives unrealistic steep climb want just enough rotate nose up shallow angle attack forward mo tion balloon will generate dynamic lift dirigible will climb power quits forward motion ceases ship descends balanced teeny bit heavy remember practice classroom free-balloon aerostats now pays off kids habit using wee bits clay altitude changes Taking off too much means ceiling trip flying site Space Museum ceiling about 45 feet Its gorgeous sight watch ing several brightly-colored dirigibles cruising majestically around among rockets satellites Always draws crowd wanting know can buy thing about dirigibles pro ject fly Because crash damage comes once explodes generally retrievalfrom-ceiling operation have four flying sessions three out parking lot outdoor planes museum dirigibles great amount learning takes place flying field constant referral principles covered class much use technical vocabulary object lessons wherever can found have run ning joke Anyone leaves fly12 Model Aviation Author assists young aviator readying X-18 flight Class flies parking lot adjacent Los Angeles Coliseum three times during two-week class session Rest time spent classroom extensive slide shows demonstrations building sorts good stuff Continued page 85 class flying session Coliseum proved good have demonstration models students have either broken forgotten own Boys shown pioneer class late 60s Some kids take science like ducks water Assistant Bill Watson right now bike racing professional model building including man-powered aircraft Letters Editor continued page 60 States Air Force have building flying models since age 13 am enclosing picture planes built flown 1957 Richard Gardner Ft Worth TX AMA has sent Mr Gardner Club Kit Rule Book Membership Applica tion materials free anyone terested joining AMA Take Bow Walt would like take opportunity thank Walt Schoonard excellent column helicopters Model via tion magazine Im sure others will agree Walt has added greatly knowledge interested radio con trol helicopters has made sug gestions improving performance safety helicopters enjoy fly ing much Thank Walt Roger WMay College Place WA CORRECTION delighted presentation article About Size following errata captions describing photos did write reference triple redundant photographers camera required nail down critical spray peaks three dimensions three cameras indeed neces sary Skate model suspended rig balsa metal being carried rig mounted launch about 20 feet long fitted out purpose test being run Estuary small inlet San Diego Bay first paragraph page 11 sev eral places Time t expressed KS should read K Bradford Powers Schoolwork Fun/Warner continued page 12 ing site crashing least plane trying hard enough crash learning takes place stress need carefully ob serve flight Knowing whether plane crashed right spiral left spiral makes world difference what cor rective action take Hypothesize what caused problem test hypothesis making corrections before flying again repeat process try have ask watch first flights successive ones plane doing what should second-opinion method planes get flying better better last session inviting parents come out watch Results really impressive especially about 1000 am thermals start cooking off black-top return classroom critique after session go over common problems Some hardware have built class includes 1/4-hp wind machine demonstrating lift/drag control surfaces spiral propwash demonstrator prop unhooked model able turn freely its longitudinal axis moment-arm balance scale couple blow-between balls toilet-paper tube goodies Bernoulli effect old spooland-card trick thrust-measuring device show relationships between different props different size motors cansmash gallon can steam ping pong ball hair-dryer airstream lots flying demonstrators mentioned earlier product review product review product review ACE 25th Anniversary Catalogue over quarter centry ago Paul Runge founder proprietor ACEalong son Tom re cently Air Forcewas flying RC found like rest pioneer fliers parts almost impossible get Radio Shack Boston Commonplace items components could found big radio sup ply stores day requiring nationwide search such essentials National Coil Forms 3A4 3D6 tubes magnet wire Realizing others sharing problems Runge founded ACE R/C first small ad appearing May 1953 issue Air Trails first catalogue 2-sheet affair printed spirit duplicator new 72-pg ACE catalogue still offers hard-to-get parts also covers kits parts assembly modern reliable gear Contain ing vast array items catalogue costs $100 add 50c first class mail returnl $100 catalogue refundable first order ACE R/C Box 511G Higgins yule MO 64037 product review product review product review Such program can put together almost anywhere form another reasons succeeds well due support California Mu seum Foundation Gerry Richer Summer Science Workshop director give pretty much free hand plan class provide financial moral help Teachers picked because nuts about what doing love job well cant imagine someone being assigned teach class like As other kinds help lots super people will help people like Bill Hannan Art Guenther Tony Naccarato Frank Zaic over country Ask owe great deal model aviation passing some fun kids program can start repaying sides else can get paid playing toy airplanes Sources Supply Helium welding supply store LA 245 cuft bottle costs $35 gas wsth $70 deposit $390/mo rental balloon filler buy $28 Balloons California Toytime Balloon Co 1116 West 7th St San Pedro CA has Zeppelin balloons gross gross regular round balloons about $30 both JASCO X-18 JASCO Box 135 North ridge CA 91324 Ask fleet rate catalog Frank Zaic has other beginners kits too X-18 queen line has rubber too Sleek Streeks almost dime stores toy dealers no luck try manufacturer North Pacific Products Bend Oregon Retail late 1977 $59 ea have two kinds balsa styrofoam wing Take balsa Rubber winders Sterling Models 3620 GSt Philadelphia PA 19134 Brochure Summer Science Workshop winter Exploring Science Sat urdays program teach abridged version Aeroplanes Flying Ma chines class call Uncle Bills Fly ing Circus Available ESS/SSW California State Museum Science Industry 700 State Drive Los Angeles CA 90037 RC Technique/Myers continued page 14 fore brought out separate lead purpose may prefer adapter important thing remember positive lead Rapid charger con nects negative terminal exter nal battery Ive sketched out Fig 3 Fig 4 gives close look metered van-charger available kit ACE R/C Inc Box 511 Higgins ville MO 64037 son Tim 14 years old built about hour unit has MarCh1978 85 KA Jill 1$ ACE l/ inc 90X56W 9HS KGGNSV E MO 6403 99]