SINCE smack-dab middle Gi ant Scale building season some recent correspon dence Louis Hemphill Columbia MO rather appropriate started out phone call Lou Hes process fabricating scale engines building material bit unusualPVC water pipe lathe hes turning Out scale cylinders Wright J5s J6s Kinner radials Continental four-cylinder Lycoming four-cylinder flat engines rationale using PVC 1 PVC strong durable material 2 Its readily available variety sourc es 3 Its inexpensive 4 Its easy work Hes found pipe comes variety wall thicknessea allow deep cuts cooling fins PVC cement joins pipe sections al rapidly CyA glues being plastic single coat paint usually covers com pleted cylinders Lou makes up wooden mandrels fit side diameter PVC pipe has gouges files other cutters lathe sounds like ideal solution scale en gine problems Giants sizes As part correspondence Lou bemoans lack how-to articles model maga zines concerned working aluminum other metals Although few us have sophis ticated tools metalworking demands have agree Mr Hemphills observations certainly metalworking tech niques use some Giant builders dont demand precision lathes milling machines drill presses YOU have some ideas sub ject wed happy pass along Joan Alyea thanks response re quest Klemm 35 documentation information turned up marvelous mass data including good three-views definitive photo-paks Bob Bankas Scale Model Research Doc Pepinos Scale Plans & Photo Service things German 42-scale plastic model kit Har old Leininger Auburn WA came up three-views obscure Swedish book Bob Banka wrote directly Joan same column noted need Klemm information discussed availability scale documentation state historical socie ties prompted Henry Farrar editor Long Island Drone Societys newsletter ward excerpt June issue noted availability Encyclopedia Asso ciations public university libraries encyclopedia notes names mailing ad50 Model Aviation Chuck stands behind Quadra 50-powered Sopwith Pup Its magnificent Valentinos razor-back Republic P-47 Jug Ziroli drawings Underwing rockets MonoKote roll tubes ping pong balls heads Quadra 65 gives 30-lb bird its go Radio Conoi Giant Scale John de Vries Colonel USAF Ret 4610 Moffat Ln Colondo Spihgs CO 80915 Chuck Valentino Ronkonkoma NY has veritable fleet Big Birds Heres 29-lb Curtiss P-40D Warhawk built Nick Ziroli plans Zenoah G-62 powers markings hand-painted cutoff pins simulate rivets dresses of special interest groups con cerned full-sized aircraft also notes ex istence organization known Man Will Never Fly Memorial Society Internationale dedi cated proposition unlikely Wright brothers ever got off ground AMA included book up dated year Sounds like good starting place document Waco Stearman Hatz new truly F Duayne Sims David Stuart Ultimates port RC 255 East Ashland/PO Box 727 Soda Springs ID 83276 telephone 208/547-4717 208/547-3742 two conscientious kit manufacturers youve ever met Currently putting Out quarter-scale kit Suk hoi SU-26M fiberglass foam glass work best old eyes have ever seen no pinholes jagged join lines bird spans 75 has 1025 squares has flying weight 13-15 lb ST 3000 back up conscientious comment As first produced Sukhoi featured fiberglass landing gear didnt work exactly right Since maintain list customers developed sturdier aluminum gear bird shipped kit pur chaser Great guys quality product Old friend Klaus Nowak selling new twostroke engine looks good Giant applica tions Known Aerrow 70 new hummer puts out seven horses 42 cu 70cc dis placement Weight 575 lb Giant needs kind power price address PO Box 189 Agincourt Ontario Canada MiS 3B6 phone 416/754-0396 budding model designers IBMcompatible computer dot-matrix printer Glenn Whitener 1335 Silverado #2015 Hous ton TX 77077 has bunch programs should interest Glenn associates touts formula program trigonometry calculator rpm data program float design program ca nard design program biplane design program wing design wing-rib drawer latter eight wing configurations included permit application 30 washout rib Continued page 158 Adjustable side frames free-flow ventilation Extremely light weight added comfort Blocks harmful aviolet radiation- 0tlI1Z mist coated far scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety P/us glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak PC Club PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Attractive case included ________Wraparound frame fits comfortably over prescription glasses Prices include shipping end handling -1PLLI5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cont US Mississippi 601 924-9640 /MC ATB P0 Box 20314 Rlverslde CA 92516-20314 daL11ERED ORNITHOPTER FLIES UP TO 50 YARDS FLAPPING ITS WINGS Rubber Powered ea 20R MORE $795 EA $100 S & H/Per Bird 3 Colors Blue/White Red/Yellow Green/Yellow CALIFORNIA RESIDENTS ADD 6% STATE SALES TAX March 1989 51 nIS Piper Tomahawkits Beechcraft Skipper built Scale RIC Modeler plans Greg J Bartling New Martinaville WV Quarter-scale bird uses Quadra 35 pow er swing 16 x 10 prop Greg says simple build predictable flier Waco UBF 1A-scale Dick Hershey Lake port CA used factory drawings make 7-ft-span model powered Ze noah G-62 Hes made up set -scale plans Mike Nettie Smith Hender son NV Hope get photo Great kids flying field LWRITE CUSTOM LETUTERING Providing elegant time saving economical finishing touch modelers U TO APPLY ering comes pre-spaced & pre-aligned Saves hours cutting & fuss aligningindividualletters decals text custom computer cut 3M Premium PEEL INGcast vinyl only2 mu thin ical horizontal text om lengths olors 6 typestyles inc MiIita Block ted upright text high Priced right no minimum charge example can have AM4 number 2 high PEEL OFf ThE CARAIER TAPEtext color $330 P & H STEP BACK CE . Call write complete info AflordmpmceusedapoerecnAMA YOURE DONEpack & sample IT S FREE Fly NYLWEITE Custom Lettering model today VINYLWEITE CUSTOM LEFIERING ______________ 16043 Tulsa Street Granada Hills CA 91344 818 363-7131 Noon 6PM Pacific order CA ru add taL RC Giant Scale/de Vries Continued page 51 program will draw em up 36 chord program prices range $3495 $8995 An SASE will bring info $3 will provide computer screen printout program choice Only caveat Glenns programs compat ible Hercules Graphic cards finally got see Eldon Linds Magic Magnet Builder flesh Its jig system wings fuselages based flat 48-in sheet grid ded steel certainly will add precision Gi ant model construction Eldon has redesigned fuselage jig holders has developed magnetequipped clamp appears versatile youre tired pin-dented fingers drop Eldon line 3151 Caravelle Dr Lake Havasu City AZ 86403 telephone 602/453-7970 Although noted Bob Banka Scale Model Re search 2334 Ticonderoga Way Costa Mesa CA 92626 714/979-8058 above amazed yours truly news now stocks 2200 dif ferent photo paks plus host new three-views 88/89 catalog due out about time read Three bucks will get copy Although weve noted before pages some best documentation threeviews ever drawn late great Paul Matt put pen Mylar could well assured hed researched subject thor oughly could back up efforts completely Paul studio behind house held ver itable treasure trove documentation data held photographic darkroom museumquality model collection walls lined jampacked file cabinets two-car garage filled books published Strange say drawing board bedroom event passed some question fate original fullsized drawings appeared reduced-size form Historical Aviation Albums model airplane magazines heart ened learned Sunshine House Inc acquired Pauls drawings now available again Sunshines Aviation Heritage Library catalog lists sale along books aviation enthusi ast address 806 Lockport Road PO Box 2065 Terre Haute IN 47802 phone 812 2323076 also have order number 800 9990141 Keep Big Birds flying RC Slope Soaring/Triebes Continued page 53 As Slope Racers demand models other form Soaring Slope Gliders have clean retain aerodynamic efficiency other words lift-to-drag ratio LID should high possible Structurally Slopers have withstand high G maneuvers occasional glance other aircraft well landing unforgiving rock-infested terrain difficult design Sailplane fast straight level flight Slope Racers must exe cute 1800 turns end course Slope Racing Sailplanes few design factors important airfoil selection 15%-thick high-camber airfoil used Sailplane will have too much lift several ounces pounds ballast will needed trim Sail plane airfoil will great performing turn long straight section course will too slow real competition other hand modelers modify Sailplanes using too thin airfoil section often drop out competition just opposite reasons instance model using 6%-thick airfoil less camber will surely pass 15% model straight level flight wing loadings identical tight turn 6% model will have use angle attack 15% model keep turn tight true causes drag airflow separation moves ward toward center lift Often case highly loaded model thin lowcamber airfoil goes turn mushes-out tip stalls no doubt end race Sailplane Slope Glider goes bank turn wing must generate lift counteract ertia bank 600 requires wing produce twice effective lift 2 Gs 850 model will experience 9 Gs angle attack model too thin airfoil will very high thus producing large amounts drag However thicker airfoil camber will require less angle attack perform same turn re sulting less drag less speed reduction information should kept mind select ing airfoil Slope Racer Another factor concerning airfoil selection type lift available slope site Sail plane designed fly well slope can dog another happy medium must main tamed model going used different slopes plane flown slope model can optimized parDARNED GOOD AIRMEN Lightest pilots available Lifelike vinyl latex rubber Build Sportsman Barnstormer Full Body Bust BUST PILOT KIT Contains pilot head helmet sport cap goggles lackel Easy assemble finish Price 00flO scale NEW 595 895 795 nv-,4 suww #103-A scale 1495 JET PILOT KIT Pilot has molded let helmet Contains face mask oxygen hose Extreme ly Realistic Weighs lass oz Price #SOO-1/s scale ... 595 #307-A scale695 ORDERING INSTHuIIuN See dealer first order direct Add $100 shipping NYS residents add 7% tax Sand check money order CODS OK Send $100 catalog FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionabte tool Price #206-R scale095 #205-1/i scale995 #2041/4 scale1095 #2031/3 scale1695 * Some aImplO sewing requIred See Dealer add Dollar direct order handlIng 158 Model Aviation
Edition: Model Aviation - 1989/03
Page Numbers: 50, 51, 158
SINCE smack-dab middle Gi ant Scale building season some recent correspon dence Louis Hemphill Columbia MO rather appropriate started out phone call Lou Hes process fabricating scale engines building material bit unusualPVC water pipe lathe hes turning Out scale cylinders Wright J5s J6s Kinner radials Continental four-cylinder Lycoming four-cylinder flat engines rationale using PVC 1 PVC strong durable material 2 Its readily available variety sourc es 3 Its inexpensive 4 Its easy work Hes found pipe comes variety wall thicknessea allow deep cuts cooling fins PVC cement joins pipe sections al rapidly CyA glues being plastic single coat paint usually covers com pleted cylinders Lou makes up wooden mandrels fit side diameter PVC pipe has gouges files other cutters lathe sounds like ideal solution scale en gine problems Giants sizes As part correspondence Lou bemoans lack how-to articles model maga zines concerned working aluminum other metals Although few us have sophis ticated tools metalworking demands have agree Mr Hemphills observations certainly metalworking tech niques use some Giant builders dont demand precision lathes milling machines drill presses YOU have some ideas sub ject wed happy pass along Joan Alyea thanks response re quest Klemm 35 documentation information turned up marvelous mass data including good three-views definitive photo-paks Bob Bankas Scale Model Research Doc Pepinos Scale Plans & Photo Service things German 42-scale plastic model kit Har old Leininger Auburn WA came up three-views obscure Swedish book Bob Banka wrote directly Joan same column noted need Klemm information discussed availability scale documentation state historical socie ties prompted Henry Farrar editor Long Island Drone Societys newsletter ward excerpt June issue noted availability Encyclopedia Asso ciations public university libraries encyclopedia notes names mailing ad50 Model Aviation Chuck stands behind Quadra 50-powered Sopwith Pup Its magnificent Valentinos razor-back Republic P-47 Jug Ziroli drawings Underwing rockets MonoKote roll tubes ping pong balls heads Quadra 65 gives 30-lb bird its go Radio Conoi Giant Scale John de Vries Colonel USAF Ret 4610 Moffat Ln Colondo Spihgs CO 80915 Chuck Valentino Ronkonkoma NY has veritable fleet Big Birds Heres 29-lb Curtiss P-40D Warhawk built Nick Ziroli plans Zenoah G-62 powers markings hand-painted cutoff pins simulate rivets dresses of special interest groups con cerned full-sized aircraft also notes ex istence organization known Man Will Never Fly Memorial Society Internationale dedi cated proposition unlikely Wright brothers ever got off ground AMA included book up dated year Sounds like good starting place document Waco Stearman Hatz new truly F Duayne Sims David Stuart Ultimates port RC 255 East Ashland/PO Box 727 Soda Springs ID 83276 telephone 208/547-4717 208/547-3742 two conscientious kit manufacturers youve ever met Currently putting Out quarter-scale kit Suk hoi SU-26M fiberglass foam glass work best old eyes have ever seen no pinholes jagged join lines bird spans 75 has 1025 squares has flying weight 13-15 lb ST 3000 back up conscientious comment As first produced Sukhoi featured fiberglass landing gear didnt work exactly right Since maintain list customers developed sturdier aluminum gear bird shipped kit pur chaser Great guys quality product Old friend Klaus Nowak selling new twostroke engine looks good Giant applica tions Known Aerrow 70 new hummer puts out seven horses 42 cu 70cc dis placement Weight 575 lb Giant needs kind power price address PO Box 189 Agincourt Ontario Canada MiS 3B6 phone 416/754-0396 budding model designers IBMcompatible computer dot-matrix printer Glenn Whitener 1335 Silverado #2015 Hous ton TX 77077 has bunch programs should interest Glenn associates touts formula program trigonometry calculator rpm data program float design program ca nard design program biplane design program wing design wing-rib drawer latter eight wing configurations included permit application 30 washout rib Continued page 158 Adjustable side frames free-flow ventilation Extremely light weight added comfort Blocks harmful aviolet radiation- 0tlI1Z mist coated far scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety P/us glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak PC Club PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Attractive case included ________Wraparound frame fits comfortably over prescription glasses Prices include shipping end handling -1PLLI5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cont US Mississippi 601 924-9640 /MC ATB P0 Box 20314 Rlverslde CA 92516-20314 daL11ERED ORNITHOPTER FLIES UP TO 50 YARDS FLAPPING ITS WINGS Rubber Powered ea 20R MORE $795 EA $100 S & H/Per Bird 3 Colors Blue/White Red/Yellow Green/Yellow CALIFORNIA RESIDENTS ADD 6% STATE SALES TAX March 1989 51 nIS Piper Tomahawkits Beechcraft Skipper built Scale RIC Modeler plans Greg J Bartling New Martinaville WV Quarter-scale bird uses Quadra 35 pow er swing 16 x 10 prop Greg says simple build predictable flier Waco UBF 1A-scale Dick Hershey Lake port CA used factory drawings make 7-ft-span model powered Ze noah G-62 Hes made up set -scale plans Mike Nettie Smith Hender son NV Hope get photo Great kids flying field LWRITE CUSTOM LETUTERING Providing elegant time saving economical finishing touch modelers U TO APPLY ering comes pre-spaced & pre-aligned Saves hours cutting & fuss aligningindividualletters decals text custom computer cut 3M Premium PEEL INGcast vinyl only2 mu thin ical horizontal text om lengths olors 6 typestyles inc MiIita Block ted upright text high Priced right no minimum charge example can have AM4 number 2 high PEEL OFf ThE CARAIER TAPEtext color $330 P & H STEP BACK CE . Call write complete info AflordmpmceusedapoerecnAMA YOURE DONEpack & sample IT S FREE Fly NYLWEITE Custom Lettering model today VINYLWEITE CUSTOM LEFIERING ______________ 16043 Tulsa Street Granada Hills CA 91344 818 363-7131 Noon 6PM Pacific order CA ru add taL RC Giant Scale/de Vries Continued page 51 program will draw em up 36 chord program prices range $3495 $8995 An SASE will bring info $3 will provide computer screen printout program choice Only caveat Glenns programs compat ible Hercules Graphic cards finally got see Eldon Linds Magic Magnet Builder flesh Its jig system wings fuselages based flat 48-in sheet grid ded steel certainly will add precision Gi ant model construction Eldon has redesigned fuselage jig holders has developed magnetequipped clamp appears versatile youre tired pin-dented fingers drop Eldon line 3151 Caravelle Dr Lake Havasu City AZ 86403 telephone 602/453-7970 Although noted Bob Banka Scale Model Re search 2334 Ticonderoga Way Costa Mesa CA 92626 714/979-8058 above amazed yours truly news now stocks 2200 dif ferent photo paks plus host new three-views 88/89 catalog due out about time read Three bucks will get copy Although weve noted before pages some best documentation threeviews ever drawn late great Paul Matt put pen Mylar could well assured hed researched subject thor oughly could back up efforts completely Paul studio behind house held ver itable treasure trove documentation data held photographic darkroom museumquality model collection walls lined jampacked file cabinets two-car garage filled books published Strange say drawing board bedroom event passed some question fate original fullsized drawings appeared reduced-size form Historical Aviation Albums model airplane magazines heart ened learned Sunshine House Inc acquired Pauls drawings now available again Sunshines Aviation Heritage Library catalog lists sale along books aviation enthusi ast address 806 Lockport Road PO Box 2065 Terre Haute IN 47802 phone 812 2323076 also have order number 800 9990141 Keep Big Birds flying RC Slope Soaring/Triebes Continued page 53 As Slope Racers demand models other form Soaring Slope Gliders have clean retain aerodynamic efficiency other words lift-to-drag ratio LID should high possible Structurally Slopers have withstand high G maneuvers occasional glance other aircraft well landing unforgiving rock-infested terrain difficult design Sailplane fast straight level flight Slope Racers must exe cute 1800 turns end course Slope Racing Sailplanes few design factors important airfoil selection 15%-thick high-camber airfoil used Sailplane will have too much lift several ounces pounds ballast will needed trim Sail plane airfoil will great performing turn long straight section course will too slow real competition other hand modelers modify Sailplanes using too thin airfoil section often drop out competition just opposite reasons instance model using 6%-thick airfoil less camber will surely pass 15% model straight level flight wing loadings identical tight turn 6% model will have use angle attack 15% model keep turn tight true causes drag airflow separation moves ward toward center lift Often case highly loaded model thin lowcamber airfoil goes turn mushes-out tip stalls no doubt end race Sailplane Slope Glider goes bank turn wing must generate lift counteract ertia bank 600 requires wing produce twice effective lift 2 Gs 850 model will experience 9 Gs angle attack model too thin airfoil will very high thus producing large amounts drag However thicker airfoil camber will require less angle attack perform same turn re sulting less drag less speed reduction information should kept mind select ing airfoil Slope Racer Another factor concerning airfoil selection type lift available slope site Sail plane designed fly well slope can dog another happy medium must main tamed model going used different slopes plane flown slope model can optimized parDARNED GOOD AIRMEN Lightest pilots available Lifelike vinyl latex rubber Build Sportsman Barnstormer Full Body Bust BUST PILOT KIT Contains pilot head helmet sport cap goggles lackel Easy assemble finish Price 00flO scale NEW 595 895 795 nv-,4 suww #103-A scale 1495 JET PILOT KIT Pilot has molded let helmet Contains face mask oxygen hose Extreme ly Realistic Weighs lass oz Price #SOO-1/s scale ... 595 #307-A scale695 ORDERING INSTHuIIuN See dealer first order direct Add $100 shipping NYS residents add 7% tax Sand check money order CODS OK Send $100 catalog FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionabte tool Price #206-R scale095 #205-1/i scale995 #2041/4 scale1095 #2031/3 scale1695 * Some aImplO sewing requIred See Dealer add Dollar direct order handlIng 158 Model Aviation
Edition: Model Aviation - 1989/03
Page Numbers: 50, 51, 158
SINCE smack-dab middle Gi ant Scale building season some recent correspon dence Louis Hemphill Columbia MO rather appropriate started out phone call Lou Hes process fabricating scale engines building material bit unusualPVC water pipe lathe hes turning Out scale cylinders Wright J5s J6s Kinner radials Continental four-cylinder Lycoming four-cylinder flat engines rationale using PVC 1 PVC strong durable material 2 Its readily available variety sourc es 3 Its inexpensive 4 Its easy work Hes found pipe comes variety wall thicknessea allow deep cuts cooling fins PVC cement joins pipe sections al rapidly CyA glues being plastic single coat paint usually covers com pleted cylinders Lou makes up wooden mandrels fit side diameter PVC pipe has gouges files other cutters lathe sounds like ideal solution scale en gine problems Giants sizes As part correspondence Lou bemoans lack how-to articles model maga zines concerned working aluminum other metals Although few us have sophis ticated tools metalworking demands have agree Mr Hemphills observations certainly metalworking tech niques use some Giant builders dont demand precision lathes milling machines drill presses YOU have some ideas sub ject wed happy pass along Joan Alyea thanks response re quest Klemm 35 documentation information turned up marvelous mass data including good three-views definitive photo-paks Bob Bankas Scale Model Research Doc Pepinos Scale Plans & Photo Service things German 42-scale plastic model kit Har old Leininger Auburn WA came up three-views obscure Swedish book Bob Banka wrote directly Joan same column noted need Klemm information discussed availability scale documentation state historical socie ties prompted Henry Farrar editor Long Island Drone Societys newsletter ward excerpt June issue noted availability Encyclopedia Asso ciations public university libraries encyclopedia notes names mailing ad50 Model Aviation Chuck stands behind Quadra 50-powered Sopwith Pup Its magnificent Valentinos razor-back Republic P-47 Jug Ziroli drawings Underwing rockets MonoKote roll tubes ping pong balls heads Quadra 65 gives 30-lb bird its go Radio Conoi Giant Scale John de Vries Colonel USAF Ret 4610 Moffat Ln Colondo Spihgs CO 80915 Chuck Valentino Ronkonkoma NY has veritable fleet Big Birds Heres 29-lb Curtiss P-40D Warhawk built Nick Ziroli plans Zenoah G-62 powers markings hand-painted cutoff pins simulate rivets dresses of special interest groups con cerned full-sized aircraft also notes ex istence organization known Man Will Never Fly Memorial Society Internationale dedi cated proposition unlikely Wright brothers ever got off ground AMA included book up dated year Sounds like good starting place document Waco Stearman Hatz new truly F Duayne Sims David Stuart Ultimates port RC 255 East Ashland/PO Box 727 Soda Springs ID 83276 telephone 208/547-4717 208/547-3742 two conscientious kit manufacturers youve ever met Currently putting Out quarter-scale kit Suk hoi SU-26M fiberglass foam glass work best old eyes have ever seen no pinholes jagged join lines bird spans 75 has 1025 squares has flying weight 13-15 lb ST 3000 back up conscientious comment As first produced Sukhoi featured fiberglass landing gear didnt work exactly right Since maintain list customers developed sturdier aluminum gear bird shipped kit pur chaser Great guys quality product Old friend Klaus Nowak selling new twostroke engine looks good Giant applica tions Known Aerrow 70 new hummer puts out seven horses 42 cu 70cc dis placement Weight 575 lb Giant needs kind power price address PO Box 189 Agincourt Ontario Canada MiS 3B6 phone 416/754-0396 budding model designers IBMcompatible computer dot-matrix printer Glenn Whitener 1335 Silverado #2015 Hous ton TX 77077 has bunch programs should interest Glenn associates touts formula program trigonometry calculator rpm data program float design program ca nard design program biplane design program wing design wing-rib drawer latter eight wing configurations included permit application 30 washout rib Continued page 158 Adjustable side frames free-flow ventilation Extremely light weight added comfort Blocks harmful aviolet radiation- 0tlI1Z mist coated far scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety P/us glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak PC Club PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Attractive case included ________Wraparound frame fits comfortably over prescription glasses Prices include shipping end handling -1PLLI5 See hobby dealer first doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cont US Mississippi 601 924-9640 /MC ATB P0 Box 20314 Rlverslde CA 92516-20314 daL11ERED ORNITHOPTER FLIES UP TO 50 YARDS FLAPPING ITS WINGS Rubber Powered ea 20R MORE $795 EA $100 S & H/Per Bird 3 Colors Blue/White Red/Yellow Green/Yellow CALIFORNIA RESIDENTS ADD 6% STATE SALES TAX March 1989 51 nIS Piper Tomahawkits Beechcraft Skipper built Scale RIC Modeler plans Greg J Bartling New Martinaville WV Quarter-scale bird uses Quadra 35 pow er swing 16 x 10 prop Greg says simple build predictable flier Waco UBF 1A-scale Dick Hershey Lake port CA used factory drawings make 7-ft-span model powered Ze noah G-62 Hes made up set -scale plans Mike Nettie Smith Hender son NV Hope get photo Great kids flying field LWRITE CUSTOM LETUTERING Providing elegant time saving economical finishing touch modelers U TO APPLY ering comes pre-spaced & pre-aligned Saves hours cutting & fuss aligningindividualletters decals text custom computer cut 3M Premium PEEL INGcast vinyl only2 mu thin ical horizontal text om lengths olors 6 typestyles inc MiIita Block ted upright text high Priced right no minimum charge example can have AM4 number 2 high PEEL OFf ThE CARAIER TAPEtext color $330 P & H STEP BACK CE . Call write complete info AflordmpmceusedapoerecnAMA YOURE DONEpack & sample IT S FREE Fly NYLWEITE Custom Lettering model today VINYLWEITE CUSTOM LEFIERING ______________ 16043 Tulsa Street Granada Hills CA 91344 818 363-7131 Noon 6PM Pacific order CA ru add taL RC Giant Scale/de Vries Continued page 51 program will draw em up 36 chord program prices range $3495 $8995 An SASE will bring info $3 will provide computer screen printout program choice Only caveat Glenns programs compat ible Hercules Graphic cards finally got see Eldon Linds Magic Magnet Builder flesh Its jig system wings fuselages based flat 48-in sheet grid ded steel certainly will add precision Gi ant model construction Eldon has redesigned fuselage jig holders has developed magnetequipped clamp appears versatile youre tired pin-dented fingers drop Eldon line 3151 Caravelle Dr Lake Havasu City AZ 86403 telephone 602/453-7970 Although noted Bob Banka Scale Model Re search 2334 Ticonderoga Way Costa Mesa CA 92626 714/979-8058 above amazed yours truly news now stocks 2200 dif ferent photo paks plus host new three-views 88/89 catalog due out about time read Three bucks will get copy Although weve noted before pages some best documentation threeviews ever drawn late great Paul Matt put pen Mylar could well assured hed researched subject thor oughly could back up efforts completely Paul studio behind house held ver itable treasure trove documentation data held photographic darkroom museumquality model collection walls lined jampacked file cabinets two-car garage filled books published Strange say drawing board bedroom event passed some question fate original fullsized drawings appeared reduced-size form Historical Aviation Albums model airplane magazines heart ened learned Sunshine House Inc acquired Pauls drawings now available again Sunshines Aviation Heritage Library catalog lists sale along books aviation enthusi ast address 806 Lockport Road PO Box 2065 Terre Haute IN 47802 phone 812 2323076 also have order number 800 9990141 Keep Big Birds flying RC Slope Soaring/Triebes Continued page 53 As Slope Racers demand models other form Soaring Slope Gliders have clean retain aerodynamic efficiency other words lift-to-drag ratio LID should high possible Structurally Slopers have withstand high G maneuvers occasional glance other aircraft well landing unforgiving rock-infested terrain difficult design Sailplane fast straight level flight Slope Racers must exe cute 1800 turns end course Slope Racing Sailplanes few design factors important airfoil selection 15%-thick high-camber airfoil used Sailplane will have too much lift several ounces pounds ballast will needed trim Sail plane airfoil will great performing turn long straight section course will too slow real competition other hand modelers modify Sailplanes using too thin airfoil section often drop out competition just opposite reasons instance model using 6%-thick airfoil less camber will surely pass 15% model straight level flight wing loadings identical tight turn 6% model will have use angle attack 15% model keep turn tight true causes drag airflow separation moves ward toward center lift Often case highly loaded model thin lowcamber airfoil goes turn mushes-out tip stalls no doubt end race Sailplane Slope Glider goes bank turn wing must generate lift counteract ertia bank 600 requires wing produce twice effective lift 2 Gs 850 model will experience 9 Gs angle attack model too thin airfoil will very high thus producing large amounts drag However thicker airfoil camber will require less angle attack perform same turn re sulting less drag less speed reduction information should kept mind select ing airfoil Slope Racer Another factor concerning airfoil selection type lift available slope site Sail plane designed fly well slope can dog another happy medium must main tamed model going used different slopes plane flown slope model can optimized parDARNED GOOD AIRMEN Lightest pilots available Lifelike vinyl latex rubber Build Sportsman Barnstormer Full Body Bust BUST PILOT KIT Contains pilot head helmet sport cap goggles lackel Easy assemble finish Price 00flO scale NEW 595 895 795 nv-,4 suww #103-A scale 1495 JET PILOT KIT Pilot has molded let helmet Contains face mask oxygen hose Extreme ly Realistic Weighs lass oz Price #SOO-1/s scale ... 595 #307-A scale695 ORDERING INSTHuIIuN See dealer first order direct Add $100 shipping NYS residents add 7% tax Sand check money order CODS OK Send $100 catalog FULL BODY PILOT KIT Contains pilot head hands boots helmet cap goggles full templates easy instruc tions Easy assemble finish Some simple sewing required Fully positionabte tool Price #206-R scale095 #205-1/i scale995 #2041/4 scale1095 #2031/3 scale1695 * Some aImplO sewing requIred See Dealer add Dollar direct order handlIng 158 Model Aviation