0 SCALE Bob & Dolly Wischer UNUSUAL twin recent column asked photos readers models would interest others Rockwell OV-IOA designed built Dr Francis McCracken prime example what mind model built scale ratio ito 775 has span of64 weight 1275 lbs Construction materials balsa spruce plywood fiberglass cloth polyester resin light gray K&B epoxy finish flown two Enya 40 engines additional operations flaps retracts tank drop rockets Dr McCracken says chose model because different challenge demonstrates very good flight characteristics Are modelers would like see photos work published address end column Finish fabric covered planes prepared finishing materials available today application silk dope seems have become lost art Because scale planes models fabric covered ships classic antique era home-builts have leam technique silk dope covering began 25 years ago first RC planes has continuing process development old ideas have dropped new methods substituted interest streamlining process shorten time required also improve quality Preparing balsa spruce plywood silk covering mostly matter using sandpaper 26 Model Aviation Toledo Gerald Snelling won 3rd place MilitarySport Scalewith Fiat CR-42 WW II fighter Italian Air Force Note unusual dappled camouflage completely strutbraced biplane propeller appears display purposes Terry Williams built Corsair Royal kit Terry flew 1 979 Kitchener-Waterloo Scale Rally RC on-off switch operated raising lowering antenna mast different challenging subject Rockwell OV-1 OA chosen Dr Francis McCracken Model spans 64 features 8 operations including flaps retracts drop tanks rockets Photo McCracken Another look fantastic detail George BussmansWilga Notethedetailofprop/cowl/ landing gear/windshield framing Theall-metal exterior has individually formed parts model placed 1st Precision Scale Toledo year photos August issue preferably over wood block level surface irregularities use least two grades no 50 open coat aluminum oxide paper rapid cutting shaping followed no 100 smoothing remove deep scratches rough Bob Godfreys latest creation Grumman F3F-1 features hand-made cast aluminum retracts actuated bychain drive ason prototype rolled aluminum flying wires 2 scale spans 64 has OS Max 80 engine finished epoxy paint paper quick follow-up no 150 open coat aluminum oxide may required depending upon texture hardness balsa strong warp-resistant structure absolute necessity since dope silk can easily distort weak framework Another cause problems wrinkle forms junction two framework members typically corners outside aileron pocket avoid wrinkles fill corner small triangular gusset strength gained point bonus wrinkle can result wher ever deflection frame members due pull dope can reduce angle between gusset stops such deflection After sanding completed surfaces will come contact silk must prepared coat ing least three coats heavy clear dope Continued page 113 NEW NEW NEW AEROSWITCH AUXILIARY SWITCHING Provides gloplug control transmitter Added realism scale aircraft No need remove cowl start engine Replaces auxiliary servo less drain batteries Can used other switching lights actuators etc Simple install Rugged solid state construction Compatible digital radios Lightweight 1 oz ntrod uctory Price $2495 Kit $2995 Assembled Postpaid Calif residents add 6% tax information write us Dealer inquiries invited Also available inflight fuel timer gloplug connector South Bay Sales 275 Kilideer Court Union City California 94587 Street CityState......... Zip Radio Make ________ Model __________ C THE CHOICE IS YOURS. Whether perfer ence Wood Fiber glas field caddys Youll get quality AerotrendTested reccomended RCM MAN FM magazines flyin Box right made super durable fiber glas shipped comple tely assembled \ storage bins flip-up plane supports folding legs Wood boxes left offer similar range fea tures low low prices Both offered basic & deluxe models kits offer other fine pro ducts too including BLUE LINE silicone products original thickerer tubing AQUA BLUE Gas & Diesel 14 scale Quadra type engines SQUEEZME HD Fuel Bulbs guaranteed life End-of-the-Line Nozzles Ti-rn-ups reusable ties other accessories Send free catalog today 44 W Prospect Street L y/ERO7J EN V New Hayen CT 06515 ~T Ph 203 397 3755 September 1980 27 Wnn-1 nnj mhonanv 995 Flyin Box $8995 cost Aeromaster smoking around sky diesel fuel sure stinks decided try some low level loops first beautiful ending about six feet off deck second attempt just thatan attempt Instead loop resembled figure 9 Could fact first loop upwind second downwind cause Al Kleinschmidt Dear Al Attempting low level loop downwind definitely problem should never anything downwind Besides watching way wind blowing may interested extensive research have conducting secret laboratory Warsaw have researching area refer breakmeup phenomenon seems life model aircraft begins tree down South America ends up trash bag filler span flying model very short indeed Trying lengthen span have developing newest anti-crash device have watching TV instead working shop like should have fprobably have noticed commercial camera sonar great brain like con cluded such device mounted aircraft pointing forward could sense approaching terra firma hard green stuff signal elevator servo pull up thus avoiding breakmeup have installed great boon RC world several models testing far have small detail work Out device does prevent sudden stop plane meets earth However have some neatest pictures little balsa pieces separating little plywod pieces surrounded beautiful colored bits flying MonoKote Maybe am using wrong exposure Rudder Brudder Im subject newsletters heres useful hintwhich contained StickTimes newsletter BlackHawk H/C Pilots Waterloo Iowa edited Bruce Stone DID YA KNOW Balsa-Rite mixed microballoons makes great filler dries fast sands easy smooths out real well just fingertip starts dry before get done just add little Balsa-Rite will flow right out Roger Stillhorn As being written still two months before Nats am frantically building new Phoenix 8 replace destroyed during mid-air collision practicing So see Nats flying orange white blue Phoenix 8 youll know successful Come up say hello Ron Van Putte 12 Connie Drive Shalimar FL 32579 light sanding between coats Dope has thinned requires coats Use smallest amount thinner will permit dope flow penetrate building up coating dope surfaces give good adhesion during covering silk As silk applied dope will pass through partially dissolve pre vious coats cause quick adhesion Insufficient dope structure before covering faults increases covering difficulties causes discouragement builder using silk first time wing structure example leading trailing edges well center rib tip should well coated edges silk will fastened during covering Other ribs also need coating prevent pinholes later due over-absorption areas dope would enter balsa underneath rather coating silk actual covering best done sections such top wing half followed bottom repeated other half Fuselage sides top bottom covered like sequence Trying cover area single piece can lead problems house scissors considered sacred used cutting silk because have learned dull scissors will refuse cut smooth edge lightweight material large area such wing half silk cut dimension two three inches wider longer part covered Grain silk should run long direction parallel selvagethat edge woven prevent raveling covering wing dry silk laid over half span sprayed generously water using window laundry sprayer silk thoroughly soaked process may need repeated during covering large area humidity low Dope brushed across center rib rubbed gently weave stretching chord-wise will adhere securely about two minutes silk pulled tightly span-wise dope brushed through wet silk onto tip making certain weave runs parallel wing crossing threads run parallel ribs right angles wing length complete wing tip need doped time Start center tip work toward edges doping pulling until com pleted Most stretching will done spanwise direction Silk strong pulling can quite energetic will need held firm grip fingertips until adhesion occurs after additional area can doped stretched point will quite apparent substantial coating needed tip before beginning covering Without tension could maintained full length leading edge can doped pulling gently chord-wise remove wrinkles along way process repeated trailing edge wrinkles visible point will have removed softening dope along edge nearest wrinkle pulling avoid sag between ribs have stretched silk much greater force span-wise chordwise Excess silk can removed new razor blade loose edges stuck down dope Overlaps become invisible later because thin silk edges submerged heavier dope applications making imperfect edge consequential wing bottom covering can follow immediately general technique described also appli cable fuselage tail surfaces greatest stretch long direction Sheeted wood decks blocks also covered help harden surface wet silk will easily follow com pound curves curvature too severe slit sharp razor will remove wrinkle no after effects slit eventually becomes invisible After water has evaporated drum tight wrinkle-free covering should result point wrinkles can still removed rewetting softening doped-down edge dope pull out offending defects Application first coat clear dope critical operation dope too thick pressure brush open silk surface will force dope through loose weave will gather droplets Visible through surface small ring permanent should avoided very gentle brushing well thinned dope keeping soft brush relatively dry during first coat Subsequent coats require extra care application dope can thicker Adding thinner unnecessarily adds coats needed build finish fill weave economy time money use little thinner possible weave completely filled clear dope after three five brushed coats will noted dope will no longer penetrate under surface through tiny openings between threads sheeted block areas will now need filled hide balsa grain stage quite pronounced purpose prepared filler can brushed filler can made talcum powder purchased druggist need non-perfumed white talc mixture approximately part talc part clear dope four parts thinner pro portion thinner reduced sanding made September 1980 113 RC Scale/Wischers continued page 27 MPS S MODEL PROTECTIVE SYSTEMS NOW CHECKING YOUR BATTERIES ON PART TIME BASIS IS ONLY THE HALF OF IT relying Battery Cyclers LEDs ESVs new mercury measunng devices getting partial protection Receiver POWER Alert ONLY UNIT will give audible warning instantly voltage problem arises Power Alert installed transmitter also will give total battery protection Power Alert $1995 Us Funds plus $100 postage Products fully guaranteed year Also available Plane-Alert $1295 System Alert $2795 Positive System Alert combination Power Alert Plane-Alert unit difficult later talc used surface will reticulate myriad small cracks Use talc mixture over balsa sheeted block surfaces never over open silk areas Usually two coats will suffice hide balsa grain Sand smooth extra fine paper removing almost talc leaving enough fill grain silk weave Raw silk edges should also sanded have found unnecessary sand open silk areas Give areas open silk talc treated alike another three four coats clear dope can either sprayed brushed preference brush flowed smoothly soft brush no brush marks should evident Without clear dope treatment over talc areas will found later coats color dope may adhere especially peeling off masking tape later steps Use enough thinner get COUPLE AILERON AND RUDDER. Simply quickly effectively Jomars new electronic module Designed install between receiver servos 3 wire radio system Neutral rudder stick position allows rudder follow ailerons Moving rudder stick allows uncoupled control Specify positive negative pulse ordering 4495 2028 KNIGHTSBRIDGE DR CINCINNATI OHiO 4 smooth flow point entire plane should have smooth blemish-free surface color dope will expected hide imperfections obvious advantage minimum color required weight build-up avoided Most heavy talc has sanded off now need enough color render open areas opaque bright sunlight some better scale models quite opaque hand laid top surface visible shadow viewed underneath open silk areas represents least possible build-up weight color application talc covered areas good simulation metal covered portions plane model has fiberglass cowl wheel pants other parts dope talc can used give fine finish same procedure outlined previously Finished clear dope color will appear made metal Bob Dolly Wisclrer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 28 ber 1979 issue Model Aviation FAI records get copy rules through AMA FAIs sporting code course Know Better yet Select would-be routes well beforehand select possible wind direction goes saying distance runs best made running downwind Choose roads out country traffic barely exists during Jacks run thermals cars Remote country roads also provide laying out winch line tying up traffic Know what irregu larities might exist such crossing busy highway railroad tracks speed limits through small towns specifically watchful things such grove trees might block out line sight happened Jack during attempt new FAI record three years ago Riding lift right course row trees blocked view time obstruction cleared bird lost found plane radio thermal sniffer destroyed year plane flown directly overhead through same area Com mon sense bet sometimes have have once Chase car LSF levels III IV V regular four-door sedan has served us well Poking ones head transmitter out car window tolerablefor about hour sun roof extends maybe hour half would-be record setters best way go convertibleif can still find cant borrow Aunt Mirandas Rolls Cornishe rag top because its weekend take poodles show next best thing borrow buddys 71 Chevy pickup Now might think riding cross-country back pickup truck has discomforts load illegal immigrants experience sneak across border Its bad clubs safety board sits up takes notice its justified sailplane does 30 mph coupled tailwind 20 mph has bumping along 50 mph Proponents airbags safety belts would probably stone witnessed such operation 50 mph hasnt realized yet Jacks supporters During Jacks flight Aquila-XL floated its 8 mph airspeed aided 5-10 mph tailwind Averaging about 15 mph standing back pickup truck isnt recliner-chair comfort requires little effort stroll through park Resting trucks cab advancing course has become standard stance flier three officials official drives other two stand back watching traffic reading maps keeping log long flights normally require stop go driving thermals worked altitude before continuing course However accelerating zero 15 mph too fast rate can dump everybody back tailgate too sounds like common sense should prevail mentioned point safety Batteries have attempted made eight hour LSF level V slope flight have probably already worked out long 116 Model Aviation INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYS S WAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan L dont need call friend time want get control Line model air new remote release SAFE LOC launcher Strong Safe end Ready4o go anytime STRONG Safety pullteated 125 lbs pressure strong enough largest CIL airplanes SAFE Hes builtin lock prevent accidental release IF NOT AT voun DEALER R DIRECT $500 ST CLAIR MODEL COMPONENTS 5626 PP intheuSAEugene OR 97405
Edition: Model Aviation - 1980/09
Page Numbers: 26, 27, 113, 116
0 SCALE Bob & Dolly Wischer UNUSUAL twin recent column asked photos readers models would interest others Rockwell OV-IOA designed built Dr Francis McCracken prime example what mind model built scale ratio ito 775 has span of64 weight 1275 lbs Construction materials balsa spruce plywood fiberglass cloth polyester resin light gray K&B epoxy finish flown two Enya 40 engines additional operations flaps retracts tank drop rockets Dr McCracken says chose model because different challenge demonstrates very good flight characteristics Are modelers would like see photos work published address end column Finish fabric covered planes prepared finishing materials available today application silk dope seems have become lost art Because scale planes models fabric covered ships classic antique era home-builts have leam technique silk dope covering began 25 years ago first RC planes has continuing process development old ideas have dropped new methods substituted interest streamlining process shorten time required also improve quality Preparing balsa spruce plywood silk covering mostly matter using sandpaper 26 Model Aviation Toledo Gerald Snelling won 3rd place MilitarySport Scalewith Fiat CR-42 WW II fighter Italian Air Force Note unusual dappled camouflage completely strutbraced biplane propeller appears display purposes Terry Williams built Corsair Royal kit Terry flew 1 979 Kitchener-Waterloo Scale Rally RC on-off switch operated raising lowering antenna mast different challenging subject Rockwell OV-1 OA chosen Dr Francis McCracken Model spans 64 features 8 operations including flaps retracts drop tanks rockets Photo McCracken Another look fantastic detail George BussmansWilga Notethedetailofprop/cowl/ landing gear/windshield framing Theall-metal exterior has individually formed parts model placed 1st Precision Scale Toledo year photos August issue preferably over wood block level surface irregularities use least two grades no 50 open coat aluminum oxide paper rapid cutting shaping followed no 100 smoothing remove deep scratches rough Bob Godfreys latest creation Grumman F3F-1 features hand-made cast aluminum retracts actuated bychain drive ason prototype rolled aluminum flying wires 2 scale spans 64 has OS Max 80 engine finished epoxy paint paper quick follow-up no 150 open coat aluminum oxide may required depending upon texture hardness balsa strong warp-resistant structure absolute necessity since dope silk can easily distort weak framework Another cause problems wrinkle forms junction two framework members typically corners outside aileron pocket avoid wrinkles fill corner small triangular gusset strength gained point bonus wrinkle can result wher ever deflection frame members due pull dope can reduce angle between gusset stops such deflection After sanding completed surfaces will come contact silk must prepared coat ing least three coats heavy clear dope Continued page 113 NEW NEW NEW AEROSWITCH AUXILIARY SWITCHING Provides gloplug control transmitter Added realism scale aircraft No need remove cowl start engine Replaces auxiliary servo less drain batteries Can used other switching lights actuators etc Simple install Rugged solid state construction Compatible digital radios Lightweight 1 oz ntrod uctory Price $2495 Kit $2995 Assembled Postpaid Calif residents add 6% tax information write us Dealer inquiries invited Also available inflight fuel timer gloplug connector South Bay Sales 275 Kilideer Court Union City California 94587 Street CityState......... Zip Radio Make ________ Model __________ C THE CHOICE IS YOURS. Whether perfer ence Wood Fiber glas field caddys Youll get quality AerotrendTested reccomended RCM MAN FM magazines flyin Box right made super durable fiber glas shipped comple tely assembled \ storage bins flip-up plane supports folding legs Wood boxes left offer similar range fea tures low low prices Both offered basic & deluxe models kits offer other fine pro ducts too including BLUE LINE silicone products original thickerer tubing AQUA BLUE Gas & Diesel 14 scale Quadra type engines SQUEEZME HD Fuel Bulbs guaranteed life End-of-the-Line Nozzles Ti-rn-ups reusable ties other accessories Send free catalog today 44 W Prospect Street L y/ERO7J EN V New Hayen CT 06515 ~T Ph 203 397 3755 September 1980 27 Wnn-1 nnj mhonanv 995 Flyin Box $8995 cost Aeromaster smoking around sky diesel fuel sure stinks decided try some low level loops first beautiful ending about six feet off deck second attempt just thatan attempt Instead loop resembled figure 9 Could fact first loop upwind second downwind cause Al Kleinschmidt Dear Al Attempting low level loop downwind definitely problem should never anything downwind Besides watching way wind blowing may interested extensive research have conducting secret laboratory Warsaw have researching area refer breakmeup phenomenon seems life model aircraft begins tree down South America ends up trash bag filler span flying model very short indeed Trying lengthen span have developing newest anti-crash device have watching TV instead working shop like should have fprobably have noticed commercial camera sonar great brain like con cluded such device mounted aircraft pointing forward could sense approaching terra firma hard green stuff signal elevator servo pull up thus avoiding breakmeup have installed great boon RC world several models testing far have small detail work Out device does prevent sudden stop plane meets earth However have some neatest pictures little balsa pieces separating little plywod pieces surrounded beautiful colored bits flying MonoKote Maybe am using wrong exposure Rudder Brudder Im subject newsletters heres useful hintwhich contained StickTimes newsletter BlackHawk H/C Pilots Waterloo Iowa edited Bruce Stone DID YA KNOW Balsa-Rite mixed microballoons makes great filler dries fast sands easy smooths out real well just fingertip starts dry before get done just add little Balsa-Rite will flow right out Roger Stillhorn As being written still two months before Nats am frantically building new Phoenix 8 replace destroyed during mid-air collision practicing So see Nats flying orange white blue Phoenix 8 youll know successful Come up say hello Ron Van Putte 12 Connie Drive Shalimar FL 32579 light sanding between coats Dope has thinned requires coats Use smallest amount thinner will permit dope flow penetrate building up coating dope surfaces give good adhesion during covering silk As silk applied dope will pass through partially dissolve pre vious coats cause quick adhesion Insufficient dope structure before covering faults increases covering difficulties causes discouragement builder using silk first time wing structure example leading trailing edges well center rib tip should well coated edges silk will fastened during covering Other ribs also need coating prevent pinholes later due over-absorption areas dope would enter balsa underneath rather coating silk actual covering best done sections such top wing half followed bottom repeated other half Fuselage sides top bottom covered like sequence Trying cover area single piece can lead problems house scissors considered sacred used cutting silk because have learned dull scissors will refuse cut smooth edge lightweight material large area such wing half silk cut dimension two three inches wider longer part covered Grain silk should run long direction parallel selvagethat edge woven prevent raveling covering wing dry silk laid over half span sprayed generously water using window laundry sprayer silk thoroughly soaked process may need repeated during covering large area humidity low Dope brushed across center rib rubbed gently weave stretching chord-wise will adhere securely about two minutes silk pulled tightly span-wise dope brushed through wet silk onto tip making certain weave runs parallel wing crossing threads run parallel ribs right angles wing length complete wing tip need doped time Start center tip work toward edges doping pulling until com pleted Most stretching will done spanwise direction Silk strong pulling can quite energetic will need held firm grip fingertips until adhesion occurs after additional area can doped stretched point will quite apparent substantial coating needed tip before beginning covering Without tension could maintained full length leading edge can doped pulling gently chord-wise remove wrinkles along way process repeated trailing edge wrinkles visible point will have removed softening dope along edge nearest wrinkle pulling avoid sag between ribs have stretched silk much greater force span-wise chordwise Excess silk can removed new razor blade loose edges stuck down dope Overlaps become invisible later because thin silk edges submerged heavier dope applications making imperfect edge consequential wing bottom covering can follow immediately general technique described also appli cable fuselage tail surfaces greatest stretch long direction Sheeted wood decks blocks also covered help harden surface wet silk will easily follow com pound curves curvature too severe slit sharp razor will remove wrinkle no after effects slit eventually becomes invisible After water has evaporated drum tight wrinkle-free covering should result point wrinkles can still removed rewetting softening doped-down edge dope pull out offending defects Application first coat clear dope critical operation dope too thick pressure brush open silk surface will force dope through loose weave will gather droplets Visible through surface small ring permanent should avoided very gentle brushing well thinned dope keeping soft brush relatively dry during first coat Subsequent coats require extra care application dope can thicker Adding thinner unnecessarily adds coats needed build finish fill weave economy time money use little thinner possible weave completely filled clear dope after three five brushed coats will noted dope will no longer penetrate under surface through tiny openings between threads sheeted block areas will now need filled hide balsa grain stage quite pronounced purpose prepared filler can brushed filler can made talcum powder purchased druggist need non-perfumed white talc mixture approximately part talc part clear dope four parts thinner pro portion thinner reduced sanding made September 1980 113 RC Scale/Wischers continued page 27 MPS S MODEL PROTECTIVE SYSTEMS NOW CHECKING YOUR BATTERIES ON PART TIME BASIS IS ONLY THE HALF OF IT relying Battery Cyclers LEDs ESVs new mercury measunng devices getting partial protection Receiver POWER Alert ONLY UNIT will give audible warning instantly voltage problem arises Power Alert installed transmitter also will give total battery protection Power Alert $1995 Us Funds plus $100 postage Products fully guaranteed year Also available Plane-Alert $1295 System Alert $2795 Positive System Alert combination Power Alert Plane-Alert unit difficult later talc used surface will reticulate myriad small cracks Use talc mixture over balsa sheeted block surfaces never over open silk areas Usually two coats will suffice hide balsa grain Sand smooth extra fine paper removing almost talc leaving enough fill grain silk weave Raw silk edges should also sanded have found unnecessary sand open silk areas Give areas open silk talc treated alike another three four coats clear dope can either sprayed brushed preference brush flowed smoothly soft brush no brush marks should evident Without clear dope treatment over talc areas will found later coats color dope may adhere especially peeling off masking tape later steps Use enough thinner get COUPLE AILERON AND RUDDER. Simply quickly effectively Jomars new electronic module Designed install between receiver servos 3 wire radio system Neutral rudder stick position allows rudder follow ailerons Moving rudder stick allows uncoupled control Specify positive negative pulse ordering 4495 2028 KNIGHTSBRIDGE DR CINCINNATI OHiO 4 smooth flow point entire plane should have smooth blemish-free surface color dope will expected hide imperfections obvious advantage minimum color required weight build-up avoided Most heavy talc has sanded off now need enough color render open areas opaque bright sunlight some better scale models quite opaque hand laid top surface visible shadow viewed underneath open silk areas represents least possible build-up weight color application talc covered areas good simulation metal covered portions plane model has fiberglass cowl wheel pants other parts dope talc can used give fine finish same procedure outlined previously Finished clear dope color will appear made metal Bob Dolly Wisclrer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 28 ber 1979 issue Model Aviation FAI records get copy rules through AMA FAIs sporting code course Know Better yet Select would-be routes well beforehand select possible wind direction goes saying distance runs best made running downwind Choose roads out country traffic barely exists during Jacks run thermals cars Remote country roads also provide laying out winch line tying up traffic Know what irregu larities might exist such crossing busy highway railroad tracks speed limits through small towns specifically watchful things such grove trees might block out line sight happened Jack during attempt new FAI record three years ago Riding lift right course row trees blocked view time obstruction cleared bird lost found plane radio thermal sniffer destroyed year plane flown directly overhead through same area Com mon sense bet sometimes have have once Chase car LSF levels III IV V regular four-door sedan has served us well Poking ones head transmitter out car window tolerablefor about hour sun roof extends maybe hour half would-be record setters best way go convertibleif can still find cant borrow Aunt Mirandas Rolls Cornishe rag top because its weekend take poodles show next best thing borrow buddys 71 Chevy pickup Now might think riding cross-country back pickup truck has discomforts load illegal immigrants experience sneak across border Its bad clubs safety board sits up takes notice its justified sailplane does 30 mph coupled tailwind 20 mph has bumping along 50 mph Proponents airbags safety belts would probably stone witnessed such operation 50 mph hasnt realized yet Jacks supporters During Jacks flight Aquila-XL floated its 8 mph airspeed aided 5-10 mph tailwind Averaging about 15 mph standing back pickup truck isnt recliner-chair comfort requires little effort stroll through park Resting trucks cab advancing course has become standard stance flier three officials official drives other two stand back watching traffic reading maps keeping log long flights normally require stop go driving thermals worked altitude before continuing course However accelerating zero 15 mph too fast rate can dump everybody back tailgate too sounds like common sense should prevail mentioned point safety Batteries have attempted made eight hour LSF level V slope flight have probably already worked out long 116 Model Aviation INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYS S WAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan L dont need call friend time want get control Line model air new remote release SAFE LOC launcher Strong Safe end Ready4o go anytime STRONG Safety pullteated 125 lbs pressure strong enough largest CIL airplanes SAFE Hes builtin lock prevent accidental release IF NOT AT voun DEALER R DIRECT $500 ST CLAIR MODEL COMPONENTS 5626 PP intheuSAEugene OR 97405
Edition: Model Aviation - 1980/09
Page Numbers: 26, 27, 113, 116
0 SCALE Bob & Dolly Wischer UNUSUAL twin recent column asked photos readers models would interest others Rockwell OV-IOA designed built Dr Francis McCracken prime example what mind model built scale ratio ito 775 has span of64 weight 1275 lbs Construction materials balsa spruce plywood fiberglass cloth polyester resin light gray K&B epoxy finish flown two Enya 40 engines additional operations flaps retracts tank drop rockets Dr McCracken says chose model because different challenge demonstrates very good flight characteristics Are modelers would like see photos work published address end column Finish fabric covered planes prepared finishing materials available today application silk dope seems have become lost art Because scale planes models fabric covered ships classic antique era home-builts have leam technique silk dope covering began 25 years ago first RC planes has continuing process development old ideas have dropped new methods substituted interest streamlining process shorten time required also improve quality Preparing balsa spruce plywood silk covering mostly matter using sandpaper 26 Model Aviation Toledo Gerald Snelling won 3rd place MilitarySport Scalewith Fiat CR-42 WW II fighter Italian Air Force Note unusual dappled camouflage completely strutbraced biplane propeller appears display purposes Terry Williams built Corsair Royal kit Terry flew 1 979 Kitchener-Waterloo Scale Rally RC on-off switch operated raising lowering antenna mast different challenging subject Rockwell OV-1 OA chosen Dr Francis McCracken Model spans 64 features 8 operations including flaps retracts drop tanks rockets Photo McCracken Another look fantastic detail George BussmansWilga Notethedetailofprop/cowl/ landing gear/windshield framing Theall-metal exterior has individually formed parts model placed 1st Precision Scale Toledo year photos August issue preferably over wood block level surface irregularities use least two grades no 50 open coat aluminum oxide paper rapid cutting shaping followed no 100 smoothing remove deep scratches rough Bob Godfreys latest creation Grumman F3F-1 features hand-made cast aluminum retracts actuated bychain drive ason prototype rolled aluminum flying wires 2 scale spans 64 has OS Max 80 engine finished epoxy paint paper quick follow-up no 150 open coat aluminum oxide may required depending upon texture hardness balsa strong warp-resistant structure absolute necessity since dope silk can easily distort weak framework Another cause problems wrinkle forms junction two framework members typically corners outside aileron pocket avoid wrinkles fill corner small triangular gusset strength gained point bonus wrinkle can result wher ever deflection frame members due pull dope can reduce angle between gusset stops such deflection After sanding completed surfaces will come contact silk must prepared coat ing least three coats heavy clear dope Continued page 113 NEW NEW NEW AEROSWITCH AUXILIARY SWITCHING Provides gloplug control transmitter Added realism scale aircraft No need remove cowl start engine Replaces auxiliary servo less drain batteries Can used other switching lights actuators etc Simple install Rugged solid state construction Compatible digital radios Lightweight 1 oz ntrod uctory Price $2495 Kit $2995 Assembled Postpaid Calif residents add 6% tax information write us Dealer inquiries invited Also available inflight fuel timer gloplug connector South Bay Sales 275 Kilideer Court Union City California 94587 Street CityState......... Zip Radio Make ________ Model __________ C THE CHOICE IS YOURS. Whether perfer ence Wood Fiber glas field caddys Youll get quality AerotrendTested reccomended RCM MAN FM magazines flyin Box right made super durable fiber glas shipped comple tely assembled \ storage bins flip-up plane supports folding legs Wood boxes left offer similar range fea tures low low prices Both offered basic & deluxe models kits offer other fine pro ducts too including BLUE LINE silicone products original thickerer tubing AQUA BLUE Gas & Diesel 14 scale Quadra type engines SQUEEZME HD Fuel Bulbs guaranteed life End-of-the-Line Nozzles Ti-rn-ups reusable ties other accessories Send free catalog today 44 W Prospect Street L y/ERO7J EN V New Hayen CT 06515 ~T Ph 203 397 3755 September 1980 27 Wnn-1 nnj mhonanv 995 Flyin Box $8995 cost Aeromaster smoking around sky diesel fuel sure stinks decided try some low level loops first beautiful ending about six feet off deck second attempt just thatan attempt Instead loop resembled figure 9 Could fact first loop upwind second downwind cause Al Kleinschmidt Dear Al Attempting low level loop downwind definitely problem should never anything downwind Besides watching way wind blowing may interested extensive research have conducting secret laboratory Warsaw have researching area refer breakmeup phenomenon seems life model aircraft begins tree down South America ends up trash bag filler span flying model very short indeed Trying lengthen span have developing newest anti-crash device have watching TV instead working shop like should have fprobably have noticed commercial camera sonar great brain like con cluded such device mounted aircraft pointing forward could sense approaching terra firma hard green stuff signal elevator servo pull up thus avoiding breakmeup have installed great boon RC world several models testing far have small detail work Out device does prevent sudden stop plane meets earth However have some neatest pictures little balsa pieces separating little plywod pieces surrounded beautiful colored bits flying MonoKote Maybe am using wrong exposure Rudder Brudder Im subject newsletters heres useful hintwhich contained StickTimes newsletter BlackHawk H/C Pilots Waterloo Iowa edited Bruce Stone DID YA KNOW Balsa-Rite mixed microballoons makes great filler dries fast sands easy smooths out real well just fingertip starts dry before get done just add little Balsa-Rite will flow right out Roger Stillhorn As being written still two months before Nats am frantically building new Phoenix 8 replace destroyed during mid-air collision practicing So see Nats flying orange white blue Phoenix 8 youll know successful Come up say hello Ron Van Putte 12 Connie Drive Shalimar FL 32579 light sanding between coats Dope has thinned requires coats Use smallest amount thinner will permit dope flow penetrate building up coating dope surfaces give good adhesion during covering silk As silk applied dope will pass through partially dissolve pre vious coats cause quick adhesion Insufficient dope structure before covering faults increases covering difficulties causes discouragement builder using silk first time wing structure example leading trailing edges well center rib tip should well coated edges silk will fastened during covering Other ribs also need coating prevent pinholes later due over-absorption areas dope would enter balsa underneath rather coating silk actual covering best done sections such top wing half followed bottom repeated other half Fuselage sides top bottom covered like sequence Trying cover area single piece can lead problems house scissors considered sacred used cutting silk because have learned dull scissors will refuse cut smooth edge lightweight material large area such wing half silk cut dimension two three inches wider longer part covered Grain silk should run long direction parallel selvagethat edge woven prevent raveling covering wing dry silk laid over half span sprayed generously water using window laundry sprayer silk thoroughly soaked process may need repeated during covering large area humidity low Dope brushed across center rib rubbed gently weave stretching chord-wise will adhere securely about two minutes silk pulled tightly span-wise dope brushed through wet silk onto tip making certain weave runs parallel wing crossing threads run parallel ribs right angles wing length complete wing tip need doped time Start center tip work toward edges doping pulling until com pleted Most stretching will done spanwise direction Silk strong pulling can quite energetic will need held firm grip fingertips until adhesion occurs after additional area can doped stretched point will quite apparent substantial coating needed tip before beginning covering Without tension could maintained full length leading edge can doped pulling gently chord-wise remove wrinkles along way process repeated trailing edge wrinkles visible point will have removed softening dope along edge nearest wrinkle pulling avoid sag between ribs have stretched silk much greater force span-wise chordwise Excess silk can removed new razor blade loose edges stuck down dope Overlaps become invisible later because thin silk edges submerged heavier dope applications making imperfect edge consequential wing bottom covering can follow immediately general technique described also appli cable fuselage tail surfaces greatest stretch long direction Sheeted wood decks blocks also covered help harden surface wet silk will easily follow com pound curves curvature too severe slit sharp razor will remove wrinkle no after effects slit eventually becomes invisible After water has evaporated drum tight wrinkle-free covering should result point wrinkles can still removed rewetting softening doped-down edge dope pull out offending defects Application first coat clear dope critical operation dope too thick pressure brush open silk surface will force dope through loose weave will gather droplets Visible through surface small ring permanent should avoided very gentle brushing well thinned dope keeping soft brush relatively dry during first coat Subsequent coats require extra care application dope can thicker Adding thinner unnecessarily adds coats needed build finish fill weave economy time money use little thinner possible weave completely filled clear dope after three five brushed coats will noted dope will no longer penetrate under surface through tiny openings between threads sheeted block areas will now need filled hide balsa grain stage quite pronounced purpose prepared filler can brushed filler can made talcum powder purchased druggist need non-perfumed white talc mixture approximately part talc part clear dope four parts thinner pro portion thinner reduced sanding made September 1980 113 RC Scale/Wischers continued page 27 MPS S MODEL PROTECTIVE SYSTEMS NOW CHECKING YOUR BATTERIES ON PART TIME BASIS IS ONLY THE HALF OF IT relying Battery Cyclers LEDs ESVs new mercury measunng devices getting partial protection Receiver POWER Alert ONLY UNIT will give audible warning instantly voltage problem arises Power Alert installed transmitter also will give total battery protection Power Alert $1995 Us Funds plus $100 postage Products fully guaranteed year Also available Plane-Alert $1295 System Alert $2795 Positive System Alert combination Power Alert Plane-Alert unit difficult later talc used surface will reticulate myriad small cracks Use talc mixture over balsa sheeted block surfaces never over open silk areas Usually two coats will suffice hide balsa grain Sand smooth extra fine paper removing almost talc leaving enough fill grain silk weave Raw silk edges should also sanded have found unnecessary sand open silk areas Give areas open silk talc treated alike another three four coats clear dope can either sprayed brushed preference brush flowed smoothly soft brush no brush marks should evident Without clear dope treatment over talc areas will found later coats color dope may adhere especially peeling off masking tape later steps Use enough thinner get COUPLE AILERON AND RUDDER. Simply quickly effectively Jomars new electronic module Designed install between receiver servos 3 wire radio system Neutral rudder stick position allows rudder follow ailerons Moving rudder stick allows uncoupled control Specify positive negative pulse ordering 4495 2028 KNIGHTSBRIDGE DR CINCINNATI OHiO 4 smooth flow point entire plane should have smooth blemish-free surface color dope will expected hide imperfections obvious advantage minimum color required weight build-up avoided Most heavy talc has sanded off now need enough color render open areas opaque bright sunlight some better scale models quite opaque hand laid top surface visible shadow viewed underneath open silk areas represents least possible build-up weight color application talc covered areas good simulation metal covered portions plane model has fiberglass cowl wheel pants other parts dope talc can used give fine finish same procedure outlined previously Finished clear dope color will appear made metal Bob Dolly Wisclrer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 28 ber 1979 issue Model Aviation FAI records get copy rules through AMA FAIs sporting code course Know Better yet Select would-be routes well beforehand select possible wind direction goes saying distance runs best made running downwind Choose roads out country traffic barely exists during Jacks run thermals cars Remote country roads also provide laying out winch line tying up traffic Know what irregu larities might exist such crossing busy highway railroad tracks speed limits through small towns specifically watchful things such grove trees might block out line sight happened Jack during attempt new FAI record three years ago Riding lift right course row trees blocked view time obstruction cleared bird lost found plane radio thermal sniffer destroyed year plane flown directly overhead through same area Com mon sense bet sometimes have have once Chase car LSF levels III IV V regular four-door sedan has served us well Poking ones head transmitter out car window tolerablefor about hour sun roof extends maybe hour half would-be record setters best way go convertibleif can still find cant borrow Aunt Mirandas Rolls Cornishe rag top because its weekend take poodles show next best thing borrow buddys 71 Chevy pickup Now might think riding cross-country back pickup truck has discomforts load illegal immigrants experience sneak across border Its bad clubs safety board sits up takes notice its justified sailplane does 30 mph coupled tailwind 20 mph has bumping along 50 mph Proponents airbags safety belts would probably stone witnessed such operation 50 mph hasnt realized yet Jacks supporters During Jacks flight Aquila-XL floated its 8 mph airspeed aided 5-10 mph tailwind Averaging about 15 mph standing back pickup truck isnt recliner-chair comfort requires little effort stroll through park Resting trucks cab advancing course has become standard stance flier three officials official drives other two stand back watching traffic reading maps keeping log long flights normally require stop go driving thermals worked altitude before continuing course However accelerating zero 15 mph too fast rate can dump everybody back tailgate too sounds like common sense should prevail mentioned point safety Batteries have attempted made eight hour LSF level V slope flight have probably already worked out long 116 Model Aviation INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYS S WAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan L dont need call friend time want get control Line model air new remote release SAFE LOC launcher Strong Safe end Ready4o go anytime STRONG Safety pullteated 125 lbs pressure strong enough largest CIL airplanes SAFE Hes builtin lock prevent accidental release IF NOT AT voun DEALER R DIRECT $500 ST CLAIR MODEL COMPONENTS 5626 PP intheuSAEugene OR 97405
Edition: Model Aviation - 1980/09
Page Numbers: 26, 27, 113, 116
0 SCALE Bob & Dolly Wischer UNUSUAL twin recent column asked photos readers models would interest others Rockwell OV-IOA designed built Dr Francis McCracken prime example what mind model built scale ratio ito 775 has span of64 weight 1275 lbs Construction materials balsa spruce plywood fiberglass cloth polyester resin light gray K&B epoxy finish flown two Enya 40 engines additional operations flaps retracts tank drop rockets Dr McCracken says chose model because different challenge demonstrates very good flight characteristics Are modelers would like see photos work published address end column Finish fabric covered planes prepared finishing materials available today application silk dope seems have become lost art Because scale planes models fabric covered ships classic antique era home-builts have leam technique silk dope covering began 25 years ago first RC planes has continuing process development old ideas have dropped new methods substituted interest streamlining process shorten time required also improve quality Preparing balsa spruce plywood silk covering mostly matter using sandpaper 26 Model Aviation Toledo Gerald Snelling won 3rd place MilitarySport Scalewith Fiat CR-42 WW II fighter Italian Air Force Note unusual dappled camouflage completely strutbraced biplane propeller appears display purposes Terry Williams built Corsair Royal kit Terry flew 1 979 Kitchener-Waterloo Scale Rally RC on-off switch operated raising lowering antenna mast different challenging subject Rockwell OV-1 OA chosen Dr Francis McCracken Model spans 64 features 8 operations including flaps retracts drop tanks rockets Photo McCracken Another look fantastic detail George BussmansWilga Notethedetailofprop/cowl/ landing gear/windshield framing Theall-metal exterior has individually formed parts model placed 1st Precision Scale Toledo year photos August issue preferably over wood block level surface irregularities use least two grades no 50 open coat aluminum oxide paper rapid cutting shaping followed no 100 smoothing remove deep scratches rough Bob Godfreys latest creation Grumman F3F-1 features hand-made cast aluminum retracts actuated bychain drive ason prototype rolled aluminum flying wires 2 scale spans 64 has OS Max 80 engine finished epoxy paint paper quick follow-up no 150 open coat aluminum oxide may required depending upon texture hardness balsa strong warp-resistant structure absolute necessity since dope silk can easily distort weak framework Another cause problems wrinkle forms junction two framework members typically corners outside aileron pocket avoid wrinkles fill corner small triangular gusset strength gained point bonus wrinkle can result wher ever deflection frame members due pull dope can reduce angle between gusset stops such deflection After sanding completed surfaces will come contact silk must prepared coat ing least three coats heavy clear dope Continued page 113 NEW NEW NEW AEROSWITCH AUXILIARY SWITCHING Provides gloplug control transmitter Added realism scale aircraft No need remove cowl start engine Replaces auxiliary servo less drain batteries Can used other switching lights actuators etc Simple install Rugged solid state construction Compatible digital radios Lightweight 1 oz ntrod uctory Price $2495 Kit $2995 Assembled Postpaid Calif residents add 6% tax information write us Dealer inquiries invited Also available inflight fuel timer gloplug connector South Bay Sales 275 Kilideer Court Union City California 94587 Street CityState......... Zip Radio Make ________ Model __________ C THE CHOICE IS YOURS. Whether perfer ence Wood Fiber glas field caddys Youll get quality AerotrendTested reccomended RCM MAN FM magazines flyin Box right made super durable fiber glas shipped comple tely assembled \ storage bins flip-up plane supports folding legs Wood boxes left offer similar range fea tures low low prices Both offered basic & deluxe models kits offer other fine pro ducts too including BLUE LINE silicone products original thickerer tubing AQUA BLUE Gas & Diesel 14 scale Quadra type engines SQUEEZME HD Fuel Bulbs guaranteed life End-of-the-Line Nozzles Ti-rn-ups reusable ties other accessories Send free catalog today 44 W Prospect Street L y/ERO7J EN V New Hayen CT 06515 ~T Ph 203 397 3755 September 1980 27 Wnn-1 nnj mhonanv 995 Flyin Box $8995 cost Aeromaster smoking around sky diesel fuel sure stinks decided try some low level loops first beautiful ending about six feet off deck second attempt just thatan attempt Instead loop resembled figure 9 Could fact first loop upwind second downwind cause Al Kleinschmidt Dear Al Attempting low level loop downwind definitely problem should never anything downwind Besides watching way wind blowing may interested extensive research have conducting secret laboratory Warsaw have researching area refer breakmeup phenomenon seems life model aircraft begins tree down South America ends up trash bag filler span flying model very short indeed Trying lengthen span have developing newest anti-crash device have watching TV instead working shop like should have fprobably have noticed commercial camera sonar great brain like con cluded such device mounted aircraft pointing forward could sense approaching terra firma hard green stuff signal elevator servo pull up thus avoiding breakmeup have installed great boon RC world several models testing far have small detail work Out device does prevent sudden stop plane meets earth However have some neatest pictures little balsa pieces separating little plywod pieces surrounded beautiful colored bits flying MonoKote Maybe am using wrong exposure Rudder Brudder Im subject newsletters heres useful hintwhich contained StickTimes newsletter BlackHawk H/C Pilots Waterloo Iowa edited Bruce Stone DID YA KNOW Balsa-Rite mixed microballoons makes great filler dries fast sands easy smooths out real well just fingertip starts dry before get done just add little Balsa-Rite will flow right out Roger Stillhorn As being written still two months before Nats am frantically building new Phoenix 8 replace destroyed during mid-air collision practicing So see Nats flying orange white blue Phoenix 8 youll know successful Come up say hello Ron Van Putte 12 Connie Drive Shalimar FL 32579 light sanding between coats Dope has thinned requires coats Use smallest amount thinner will permit dope flow penetrate building up coating dope surfaces give good adhesion during covering silk As silk applied dope will pass through partially dissolve pre vious coats cause quick adhesion Insufficient dope structure before covering faults increases covering difficulties causes discouragement builder using silk first time wing structure example leading trailing edges well center rib tip should well coated edges silk will fastened during covering Other ribs also need coating prevent pinholes later due over-absorption areas dope would enter balsa underneath rather coating silk actual covering best done sections such top wing half followed bottom repeated other half Fuselage sides top bottom covered like sequence Trying cover area single piece can lead problems house scissors considered sacred used cutting silk because have learned dull scissors will refuse cut smooth edge lightweight material large area such wing half silk cut dimension two three inches wider longer part covered Grain silk should run long direction parallel selvagethat edge woven prevent raveling covering wing dry silk laid over half span sprayed generously water using window laundry sprayer silk thoroughly soaked process may need repeated during covering large area humidity low Dope brushed across center rib rubbed gently weave stretching chord-wise will adhere securely about two minutes silk pulled tightly span-wise dope brushed through wet silk onto tip making certain weave runs parallel wing crossing threads run parallel ribs right angles wing length complete wing tip need doped time Start center tip work toward edges doping pulling until com pleted Most stretching will done spanwise direction Silk strong pulling can quite energetic will need held firm grip fingertips until adhesion occurs after additional area can doped stretched point will quite apparent substantial coating needed tip before beginning covering Without tension could maintained full length leading edge can doped pulling gently chord-wise remove wrinkles along way process repeated trailing edge wrinkles visible point will have removed softening dope along edge nearest wrinkle pulling avoid sag between ribs have stretched silk much greater force span-wise chordwise Excess silk can removed new razor blade loose edges stuck down dope Overlaps become invisible later because thin silk edges submerged heavier dope applications making imperfect edge consequential wing bottom covering can follow immediately general technique described also appli cable fuselage tail surfaces greatest stretch long direction Sheeted wood decks blocks also covered help harden surface wet silk will easily follow com pound curves curvature too severe slit sharp razor will remove wrinkle no after effects slit eventually becomes invisible After water has evaporated drum tight wrinkle-free covering should result point wrinkles can still removed rewetting softening doped-down edge dope pull out offending defects Application first coat clear dope critical operation dope too thick pressure brush open silk surface will force dope through loose weave will gather droplets Visible through surface small ring permanent should avoided very gentle brushing well thinned dope keeping soft brush relatively dry during first coat Subsequent coats require extra care application dope can thicker Adding thinner unnecessarily adds coats needed build finish fill weave economy time money use little thinner possible weave completely filled clear dope after three five brushed coats will noted dope will no longer penetrate under surface through tiny openings between threads sheeted block areas will now need filled hide balsa grain stage quite pronounced purpose prepared filler can brushed filler can made talcum powder purchased druggist need non-perfumed white talc mixture approximately part talc part clear dope four parts thinner pro portion thinner reduced sanding made September 1980 113 RC Scale/Wischers continued page 27 MPS S MODEL PROTECTIVE SYSTEMS NOW CHECKING YOUR BATTERIES ON PART TIME BASIS IS ONLY THE HALF OF IT relying Battery Cyclers LEDs ESVs new mercury measunng devices getting partial protection Receiver POWER Alert ONLY UNIT will give audible warning instantly voltage problem arises Power Alert installed transmitter also will give total battery protection Power Alert $1995 Us Funds plus $100 postage Products fully guaranteed year Also available Plane-Alert $1295 System Alert $2795 Positive System Alert combination Power Alert Plane-Alert unit difficult later talc used surface will reticulate myriad small cracks Use talc mixture over balsa sheeted block surfaces never over open silk areas Usually two coats will suffice hide balsa grain Sand smooth extra fine paper removing almost talc leaving enough fill grain silk weave Raw silk edges should also sanded have found unnecessary sand open silk areas Give areas open silk talc treated alike another three four coats clear dope can either sprayed brushed preference brush flowed smoothly soft brush no brush marks should evident Without clear dope treatment over talc areas will found later coats color dope may adhere especially peeling off masking tape later steps Use enough thinner get COUPLE AILERON AND RUDDER. Simply quickly effectively Jomars new electronic module Designed install between receiver servos 3 wire radio system Neutral rudder stick position allows rudder follow ailerons Moving rudder stick allows uncoupled control Specify positive negative pulse ordering 4495 2028 KNIGHTSBRIDGE DR CINCINNATI OHiO 4 smooth flow point entire plane should have smooth blemish-free surface color dope will expected hide imperfections obvious advantage minimum color required weight build-up avoided Most heavy talc has sanded off now need enough color render open areas opaque bright sunlight some better scale models quite opaque hand laid top surface visible shadow viewed underneath open silk areas represents least possible build-up weight color application talc covered areas good simulation metal covered portions plane model has fiberglass cowl wheel pants other parts dope talc can used give fine finish same procedure outlined previously Finished clear dope color will appear made metal Bob Dolly Wisclrer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 28 ber 1979 issue Model Aviation FAI records get copy rules through AMA FAIs sporting code course Know Better yet Select would-be routes well beforehand select possible wind direction goes saying distance runs best made running downwind Choose roads out country traffic barely exists during Jacks run thermals cars Remote country roads also provide laying out winch line tying up traffic Know what irregu larities might exist such crossing busy highway railroad tracks speed limits through small towns specifically watchful things such grove trees might block out line sight happened Jack during attempt new FAI record three years ago Riding lift right course row trees blocked view time obstruction cleared bird lost found plane radio thermal sniffer destroyed year plane flown directly overhead through same area Com mon sense bet sometimes have have once Chase car LSF levels III IV V regular four-door sedan has served us well Poking ones head transmitter out car window tolerablefor about hour sun roof extends maybe hour half would-be record setters best way go convertibleif can still find cant borrow Aunt Mirandas Rolls Cornishe rag top because its weekend take poodles show next best thing borrow buddys 71 Chevy pickup Now might think riding cross-country back pickup truck has discomforts load illegal immigrants experience sneak across border Its bad clubs safety board sits up takes notice its justified sailplane does 30 mph coupled tailwind 20 mph has bumping along 50 mph Proponents airbags safety belts would probably stone witnessed such operation 50 mph hasnt realized yet Jacks supporters During Jacks flight Aquila-XL floated its 8 mph airspeed aided 5-10 mph tailwind Averaging about 15 mph standing back pickup truck isnt recliner-chair comfort requires little effort stroll through park Resting trucks cab advancing course has become standard stance flier three officials official drives other two stand back watching traffic reading maps keeping log long flights normally require stop go driving thermals worked altitude before continuing course However accelerating zero 15 mph too fast rate can dump everybody back tailgate too sounds like common sense should prevail mentioned point safety Batteries have attempted made eight hour LSF level V slope flight have probably already worked out long 116 Model Aviation INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYS S WAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan L dont need call friend time want get control Line model air new remote release SAFE LOC launcher Strong Safe end Ready4o go anytime STRONG Safety pullteated 125 lbs pressure strong enough largest CIL airplanes SAFE Hes builtin lock prevent accidental release IF NOT AT voun DEALER R DIRECT $500 ST CLAIR MODEL COMPONENTS 5626 PP intheuSAEugene OR 97405