SPORT AEROBATICS Ron Van Putte MY April 1980 column contained propeller load factor formula table load factors various engines credited E J Richburg article Central Virginia Radio Control Association Newsletter source load factor table Recently received letter L M Doc Morrish Flint Michigan claimed material came series articles wrote published RC Sportsman magazine 1976 1977 Unfor tunately subscribe magazine never saw articles published obtain information general interest club newsletters always attempt properly credit source goofed case sorry Doc 1980 contest season should full swing read No doubt will thinking about entering first Pattem contest arent sure go about addition probably lot have less outstanding success competition dont know column intended help both groups biggest failings RC Pattern com petitors reading AMA rule book competitor has little chance success doesnt know what expected him judges supposed job according rule book competitors advan tage read understand Countless times have heard competitors complain received low score maneuver didnt know Yet careful reading rules would have told reason Some old-time competitors come up line fly flight using maneuver definitions takeoff landing appeared years ago longer applicable example takeoff complete 6 feet meter after 90 degree turn takeoff heading what Look up rule book will tell what expected will also explain different options have example engine quits after have called Takeoff before two minutes have expired have option restarting engine continuing flight have option asking put end line Look up AMA rule book has same appearance year fliers lulled thinking contents havent changed year have lot changes everyone should read new rules before climbing car driving several hundred miles contest have received quite few letters people interested starting fly pattern wanted recommend aircraft recoinContinued page 112 34 Model Aviation John Simone displayed Shockwave oledo snow Bridi UFO powered bY piped Rossi 65 Finish acrylic enamel bird looked like cast black glass picture cant real justice Note treatment pipe Kids can nice have around reasons Lisa Young making plenty 0 points dad Clyde Young cleaning up pattern model after flight unuck bnaae handled tfle tuned pipe problem a manner Chucks model American Pie features molded fiberglass fuselage integral recess rear4xhaust pipe contrast appearance scheme over typical sideexhaust tuned pipe instal lation side-mounted enginewhere everything hangs out breezeis dramatic Gibbs Hobby & Research 6195 Hillfield St NW North Canton OH 44720 Harry B Higley Sons Inc. 433 Arquilla Dr Glenwood IL 60425 JC EnterprIses 2251 SW 28th Terr Ft Lauderdale FL 33312 Kraft Systems Inc PO Box 1268 Vista CA 92083 Messers Quality Model Products 106 Valley View Dr Allegany NY 14706 Miniature Aircraft Society Godfrey & Son Music 254-258 Washington St Bing hamton NY 13901 I--I Strips Balsa Fuzz-Freew/out Adjustments Small -$1000 Large shown-$2000 Please add $100 postage P Kits ature ReDlicas 3EE BEE shown $525 please adc $100 Cataloy See Your Dealer Order Direct GENE DUBOIS P0 Box c Acushnet MA 02743j ..,.DEALER INQUIRIES INVITED big wing Frank Fisher National Multiwing Association writes tell about Eighth Annual Multiwing Chain pionships spread word Jumbo Multiwing event big part plans year uncontest first just fun affairs basic rules areShow up fly Any multiwing RC model eli gible special welcome mat out big birds Dates July 12 13 Omaha NE info write Robert Hess 11720 Cedar Omaha NE 68144 phone 402 334-1092 RC AEROBATICS/VAN PUTTE cc ntinued page 34 mendation has consistently get Bridi Dirty Birdy Since have flying Phoenix airplanes years may consider recommendation rather unusual However con sidering requirements Novice pattern feel Dirty Birdy has offer rolls inverted upright better airplane Ive ever seen does other maneuvers well design roll inverted upright occurs Immelmann Turn Two-Point Roll Outside Loop three maneuvers tough beginning Novice class fliers wish dollar Dirty Birdy flier beat Novice class need retractable landing gear compete successfully Novice class Lamar Gilbert proved finished 2nd 1978 Nats fixed gear Dirty Birdy believe extra weight problems retracts dont offer sufficient payoff forthe Novice class What engines required compete success fully different classes answer generally different class since maneu vers different Novice class has no maneuvers require tremendous vertical performance required airplane Expert Master classes Consequently high performance/piped engine neither required nor desired Novice class Advanced class lesser extent high performance/piped engines have own set problems besides high price actually detriment fliers lower classes Consider vicious circle average good 60 engine needs less 10 ounces fuel Novice pattern flight ever install Schnuerle-ported engine pump pressure carburetor tuned pipe need 16 ounces fuel must have power combination just carry around pump carburetor pipe fuel vertical performance improved isnt needed Novice class Get yourself good reliable standard 60 lot available also need top-of-the-line radio compete Novice pattern good reliable four channel radio system will suffice dont need channels because dont need retracts mixture control flaps Make sure servos have sufficient power center properly youre business radio standpoint Once have read rule book know what expected can go out practice pattern advice try maneuvers individu ally until feel relatively comfortable before trying whole pattern However once can maneuvers always perform complete pattern flight start tinish Unly repeat ~blown maneuver after 112 Model Aviation MASTER AIASCREW ANNOUNCING NEW 1I2A SERIES Accurately Pitched Balanced High Per Jrnmance Available Through Leading Distributors liked GIF SERIES standard size engines really going like new AA SERIES moldedfrom same tough composite material very carefully SERIES includes 6x4 hobby about $129 NO NONSENSE BALSA STRIPPERS B N U rfmms OIOBOOM AFAA $2800 VAOUOOOA FAN 2800 40N000 FAI.x 2400 inPPNSPROinS250 S C WON fhlrAiLSO ref SISFB { DOFFELT ~IP -U cur e POL BOX 99774SAN DIEGOCAUFO U 92109 e TELEPHONE 7144831984 JC Enterprises working opposedtwin version McCulloch-based Husky ELLCO Plastics displayed fine Zero new companion Piper Cherokee 235 Bert Baker design R Shettler Enterprises Pottery Rd RR 3 Vernon BC Canada ViT 6L6 Sonic Systems PO Box 192 Whippany NJ 07981 Top Flite Models Inc 1901 N Narragansett Ave Chicago IL 60639 Wendell Hostetler 1041 Heatherwood Orr yule OH 44667 J Z Products Zinger props 25029 So Ver mont Ave Harbor City CA 90710 Big Birds Welcome theyve got have peiformed everything except landing go back try maneuver again will give feeling continuity about flight will make comfortable step before judges Its also good idea practice help caller because thats way will contest caller can provide suggestions can improve caller will often see things wrong maneuver pilot didnt notice caller can also suggest improvement framing maneuver front judges getting airplane proper heading way pilot tells judges what doing very important judges know exactly whats going Its always good idea call maneuvers during practice its new strange thing contest youve got enough other things mind recommend calling sequence follows after maneuver complete caller tells pilot what maneuver next pilot tells judges before during turnaround After turnaround pilot informs judges airplane heading next maneuver pilot should call start completion maneuver proper times typical sequence might 1 next maneuver will Immelmann Turn 2 heading MAMMOTH SCALERS r have available ccuplete Jam Inesvazta aml rojfflers ,at 90 334718 hita a2og Quarter PS USE 12221 Sm Igmeim Ca 5*112 Immelmann Turn 3 maneuver beginning now 4 Maneuver complete think pilot should stand upwind judges have better chance hearing him flight line usually noisy place flight circle being used pilot upwind wind will blow voice back judges rather away pilots attitude toward judges also important feel pilots duty present flight can judged fairly impartially talking up down judges Extraneous comments quality maneuvers should avoided Dont apologize bad maneuver pat yourself back good judges will tell what thought about opinions important ones anyway Remember getting ready contest success pattern competition largely function preparations went Luck has very little results Ron Van Putte 12 Connie Drive Shalimar FL 32579 SAFE FLYING IS NO ACCIDENT RC SOARING/PR USS Co ntinued page 35 IBALSA SQ 16 TAPE- NOSE OF PLANE THIS DISTANCE WOULD BE THE SAME FOR ALL PLANES Ron Nelsons smoothlanding detector Rob suggests balsa taped nose distance end balsa ground would same airplane no matter what nose shape idea might present couple problems organizers its worth trying local level Large scale Last month some pics details passed gave impression what happening Europe 1/5 scale sailplane world Well lot us thinking compact cars two-meter easy-totote flying machines small group modelers turning out birds would find themselves suffering hangar rash 20-foot motor home Theres SB-9 availableready Data Wingspan 733 meters fuselage length 25 meters all-up weight 75 kilograms Fuselage epoxy molded wing foam core wood covering Airfoil Eppler 203 Cost 800 DM around $500 Germany does fly guess its like gent 600-pound gorilla asked walked Anywhere wanted SB-9 designed primarily slope flying birds size flying usually day weekend outing guess could say its like getting fill scale soaring scale bird far less 1/3 costnow convince wife Soar Gull gull-wing sailplane pictured month Duane Eisenbeiss Duane isnt flying United Airlines hes flying own full size Standard Cirrus its above hes drawing building board arent necessarily order priorities its what tells boss According Duane plane designed look different easy fly Theres no question its distinct feaures plane easy spot gaggle homing same thermal Duane says gull wing used mostly appearance does however cause wings lifting force act well above fuselage thereby contributing positive stability through pendulum effect Duane also says two control surfaces should have less drag three fore V chosen V tail also lighter weight savings tail plus factor design Soar Gull has over 150 flights results have beyond drawing board hopes Its 100 inches wingspan weighs 55 ounces has empty wing loading 88 ounces per square foot two-piece V tail slides onto wooden 116 Model Aviation REALISMSCALE ACCESSORIES TY WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 u OIlY VTHE NEW FIREBALL GLOW PLUGS ARE LEAKPROOF AND BLOWOUT PROOF EVEN FOR THE NEW MONSTER ENGINES BUT THEY ARE STILL THE OLD PRICE OF$1 10 WRITE NOW! SWANSON PO Box 151liZ Wayn eN 07470
Edition: Model Aviation - 1980/07
Page Numbers: 34, 112, 116
SPORT AEROBATICS Ron Van Putte MY April 1980 column contained propeller load factor formula table load factors various engines credited E J Richburg article Central Virginia Radio Control Association Newsletter source load factor table Recently received letter L M Doc Morrish Flint Michigan claimed material came series articles wrote published RC Sportsman magazine 1976 1977 Unfor tunately subscribe magazine never saw articles published obtain information general interest club newsletters always attempt properly credit source goofed case sorry Doc 1980 contest season should full swing read No doubt will thinking about entering first Pattem contest arent sure go about addition probably lot have less outstanding success competition dont know column intended help both groups biggest failings RC Pattern com petitors reading AMA rule book competitor has little chance success doesnt know what expected him judges supposed job according rule book competitors advan tage read understand Countless times have heard competitors complain received low score maneuver didnt know Yet careful reading rules would have told reason Some old-time competitors come up line fly flight using maneuver definitions takeoff landing appeared years ago longer applicable example takeoff complete 6 feet meter after 90 degree turn takeoff heading what Look up rule book will tell what expected will also explain different options have example engine quits after have called Takeoff before two minutes have expired have option restarting engine continuing flight have option asking put end line Look up AMA rule book has same appearance year fliers lulled thinking contents havent changed year have lot changes everyone should read new rules before climbing car driving several hundred miles contest have received quite few letters people interested starting fly pattern wanted recommend aircraft recoinContinued page 112 34 Model Aviation John Simone displayed Shockwave oledo snow Bridi UFO powered bY piped Rossi 65 Finish acrylic enamel bird looked like cast black glass picture cant real justice Note treatment pipe Kids can nice have around reasons Lisa Young making plenty 0 points dad Clyde Young cleaning up pattern model after flight unuck bnaae handled tfle tuned pipe problem a manner Chucks model American Pie features molded fiberglass fuselage integral recess rear4xhaust pipe contrast appearance scheme over typical sideexhaust tuned pipe instal lation side-mounted enginewhere everything hangs out breezeis dramatic Gibbs Hobby & Research 6195 Hillfield St NW North Canton OH 44720 Harry B Higley Sons Inc. 433 Arquilla Dr Glenwood IL 60425 JC EnterprIses 2251 SW 28th Terr Ft Lauderdale FL 33312 Kraft Systems Inc PO Box 1268 Vista CA 92083 Messers Quality Model Products 106 Valley View Dr Allegany NY 14706 Miniature Aircraft Society Godfrey & Son Music 254-258 Washington St Bing hamton NY 13901 I--I Strips Balsa Fuzz-Freew/out Adjustments Small -$1000 Large shown-$2000 Please add $100 postage P Kits ature ReDlicas 3EE BEE shown $525 please adc $100 Cataloy See Your Dealer Order Direct GENE DUBOIS P0 Box c Acushnet MA 02743j ..,.DEALER INQUIRIES INVITED big wing Frank Fisher National Multiwing Association writes tell about Eighth Annual Multiwing Chain pionships spread word Jumbo Multiwing event big part plans year uncontest first just fun affairs basic rules areShow up fly Any multiwing RC model eli gible special welcome mat out big birds Dates July 12 13 Omaha NE info write Robert Hess 11720 Cedar Omaha NE 68144 phone 402 334-1092 RC AEROBATICS/VAN PUTTE cc ntinued page 34 mendation has consistently get Bridi Dirty Birdy Since have flying Phoenix airplanes years may consider recommendation rather unusual However con sidering requirements Novice pattern feel Dirty Birdy has offer rolls inverted upright better airplane Ive ever seen does other maneuvers well design roll inverted upright occurs Immelmann Turn Two-Point Roll Outside Loop three maneuvers tough beginning Novice class fliers wish dollar Dirty Birdy flier beat Novice class need retractable landing gear compete successfully Novice class Lamar Gilbert proved finished 2nd 1978 Nats fixed gear Dirty Birdy believe extra weight problems retracts dont offer sufficient payoff forthe Novice class What engines required compete success fully different classes answer generally different class since maneu vers different Novice class has no maneuvers require tremendous vertical performance required airplane Expert Master classes Consequently high performance/piped engine neither required nor desired Novice class Advanced class lesser extent high performance/piped engines have own set problems besides high price actually detriment fliers lower classes Consider vicious circle average good 60 engine needs less 10 ounces fuel Novice pattern flight ever install Schnuerle-ported engine pump pressure carburetor tuned pipe need 16 ounces fuel must have power combination just carry around pump carburetor pipe fuel vertical performance improved isnt needed Novice class Get yourself good reliable standard 60 lot available also need top-of-the-line radio compete Novice pattern good reliable four channel radio system will suffice dont need channels because dont need retracts mixture control flaps Make sure servos have sufficient power center properly youre business radio standpoint Once have read rule book know what expected can go out practice pattern advice try maneuvers individu ally until feel relatively comfortable before trying whole pattern However once can maneuvers always perform complete pattern flight start tinish Unly repeat ~blown maneuver after 112 Model Aviation MASTER AIASCREW ANNOUNCING NEW 1I2A SERIES Accurately Pitched Balanced High Per Jrnmance Available Through Leading Distributors liked GIF SERIES standard size engines really going like new AA SERIES moldedfrom same tough composite material very carefully SERIES includes 6x4 hobby about $129 NO NONSENSE BALSA STRIPPERS B N U rfmms OIOBOOM AFAA $2800 VAOUOOOA FAN 2800 40N000 FAI.x 2400 inPPNSPROinS250 S C WON fhlrAiLSO ref SISFB { DOFFELT ~IP -U cur e POL BOX 99774SAN DIEGOCAUFO U 92109 e TELEPHONE 7144831984 JC Enterprises working opposedtwin version McCulloch-based Husky ELLCO Plastics displayed fine Zero new companion Piper Cherokee 235 Bert Baker design R Shettler Enterprises Pottery Rd RR 3 Vernon BC Canada ViT 6L6 Sonic Systems PO Box 192 Whippany NJ 07981 Top Flite Models Inc 1901 N Narragansett Ave Chicago IL 60639 Wendell Hostetler 1041 Heatherwood Orr yule OH 44667 J Z Products Zinger props 25029 So Ver mont Ave Harbor City CA 90710 Big Birds Welcome theyve got have peiformed everything except landing go back try maneuver again will give feeling continuity about flight will make comfortable step before judges Its also good idea practice help caller because thats way will contest caller can provide suggestions can improve caller will often see things wrong maneuver pilot didnt notice caller can also suggest improvement framing maneuver front judges getting airplane proper heading way pilot tells judges what doing very important judges know exactly whats going Its always good idea call maneuvers during practice its new strange thing contest youve got enough other things mind recommend calling sequence follows after maneuver complete caller tells pilot what maneuver next pilot tells judges before during turnaround After turnaround pilot informs judges airplane heading next maneuver pilot should call start completion maneuver proper times typical sequence might 1 next maneuver will Immelmann Turn 2 heading MAMMOTH SCALERS r have available ccuplete Jam Inesvazta aml rojfflers ,at 90 334718 hita a2og Quarter PS USE 12221 Sm Igmeim Ca 5*112 Immelmann Turn 3 maneuver beginning now 4 Maneuver complete think pilot should stand upwind judges have better chance hearing him flight line usually noisy place flight circle being used pilot upwind wind will blow voice back judges rather away pilots attitude toward judges also important feel pilots duty present flight can judged fairly impartially talking up down judges Extraneous comments quality maneuvers should avoided Dont apologize bad maneuver pat yourself back good judges will tell what thought about opinions important ones anyway Remember getting ready contest success pattern competition largely function preparations went Luck has very little results Ron Van Putte 12 Connie Drive Shalimar FL 32579 SAFE FLYING IS NO ACCIDENT RC SOARING/PR USS Co ntinued page 35 IBALSA SQ 16 TAPE- NOSE OF PLANE THIS DISTANCE WOULD BE THE SAME FOR ALL PLANES Ron Nelsons smoothlanding detector Rob suggests balsa taped nose distance end balsa ground would same airplane no matter what nose shape idea might present couple problems organizers its worth trying local level Large scale Last month some pics details passed gave impression what happening Europe 1/5 scale sailplane world Well lot us thinking compact cars two-meter easy-totote flying machines small group modelers turning out birds would find themselves suffering hangar rash 20-foot motor home Theres SB-9 availableready Data Wingspan 733 meters fuselage length 25 meters all-up weight 75 kilograms Fuselage epoxy molded wing foam core wood covering Airfoil Eppler 203 Cost 800 DM around $500 Germany does fly guess its like gent 600-pound gorilla asked walked Anywhere wanted SB-9 designed primarily slope flying birds size flying usually day weekend outing guess could say its like getting fill scale soaring scale bird far less 1/3 costnow convince wife Soar Gull gull-wing sailplane pictured month Duane Eisenbeiss Duane isnt flying United Airlines hes flying own full size Standard Cirrus its above hes drawing building board arent necessarily order priorities its what tells boss According Duane plane designed look different easy fly Theres no question its distinct feaures plane easy spot gaggle homing same thermal Duane says gull wing used mostly appearance does however cause wings lifting force act well above fuselage thereby contributing positive stability through pendulum effect Duane also says two control surfaces should have less drag three fore V chosen V tail also lighter weight savings tail plus factor design Soar Gull has over 150 flights results have beyond drawing board hopes Its 100 inches wingspan weighs 55 ounces has empty wing loading 88 ounces per square foot two-piece V tail slides onto wooden 116 Model Aviation REALISMSCALE ACCESSORIES TY WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 u OIlY VTHE NEW FIREBALL GLOW PLUGS ARE LEAKPROOF AND BLOWOUT PROOF EVEN FOR THE NEW MONSTER ENGINES BUT THEY ARE STILL THE OLD PRICE OF$1 10 WRITE NOW! SWANSON PO Box 151liZ Wayn eN 07470
Edition: Model Aviation - 1980/07
Page Numbers: 34, 112, 116
SPORT AEROBATICS Ron Van Putte MY April 1980 column contained propeller load factor formula table load factors various engines credited E J Richburg article Central Virginia Radio Control Association Newsletter source load factor table Recently received letter L M Doc Morrish Flint Michigan claimed material came series articles wrote published RC Sportsman magazine 1976 1977 Unfor tunately subscribe magazine never saw articles published obtain information general interest club newsletters always attempt properly credit source goofed case sorry Doc 1980 contest season should full swing read No doubt will thinking about entering first Pattem contest arent sure go about addition probably lot have less outstanding success competition dont know column intended help both groups biggest failings RC Pattern com petitors reading AMA rule book competitor has little chance success doesnt know what expected him judges supposed job according rule book competitors advan tage read understand Countless times have heard competitors complain received low score maneuver didnt know Yet careful reading rules would have told reason Some old-time competitors come up line fly flight using maneuver definitions takeoff landing appeared years ago longer applicable example takeoff complete 6 feet meter after 90 degree turn takeoff heading what Look up rule book will tell what expected will also explain different options have example engine quits after have called Takeoff before two minutes have expired have option restarting engine continuing flight have option asking put end line Look up AMA rule book has same appearance year fliers lulled thinking contents havent changed year have lot changes everyone should read new rules before climbing car driving several hundred miles contest have received quite few letters people interested starting fly pattern wanted recommend aircraft recoinContinued page 112 34 Model Aviation John Simone displayed Shockwave oledo snow Bridi UFO powered bY piped Rossi 65 Finish acrylic enamel bird looked like cast black glass picture cant real justice Note treatment pipe Kids can nice have around reasons Lisa Young making plenty 0 points dad Clyde Young cleaning up pattern model after flight unuck bnaae handled tfle tuned pipe problem a manner Chucks model American Pie features molded fiberglass fuselage integral recess rear4xhaust pipe contrast appearance scheme over typical sideexhaust tuned pipe instal lation side-mounted enginewhere everything hangs out breezeis dramatic Gibbs Hobby & Research 6195 Hillfield St NW North Canton OH 44720 Harry B Higley Sons Inc. 433 Arquilla Dr Glenwood IL 60425 JC EnterprIses 2251 SW 28th Terr Ft Lauderdale FL 33312 Kraft Systems Inc PO Box 1268 Vista CA 92083 Messers Quality Model Products 106 Valley View Dr Allegany NY 14706 Miniature Aircraft Society Godfrey & Son Music 254-258 Washington St Bing hamton NY 13901 I--I Strips Balsa Fuzz-Freew/out Adjustments Small -$1000 Large shown-$2000 Please add $100 postage P Kits ature ReDlicas 3EE BEE shown $525 please adc $100 Cataloy See Your Dealer Order Direct GENE DUBOIS P0 Box c Acushnet MA 02743j ..,.DEALER INQUIRIES INVITED big wing Frank Fisher National Multiwing Association writes tell about Eighth Annual Multiwing Chain pionships spread word Jumbo Multiwing event big part plans year uncontest first just fun affairs basic rules areShow up fly Any multiwing RC model eli gible special welcome mat out big birds Dates July 12 13 Omaha NE info write Robert Hess 11720 Cedar Omaha NE 68144 phone 402 334-1092 RC AEROBATICS/VAN PUTTE cc ntinued page 34 mendation has consistently get Bridi Dirty Birdy Since have flying Phoenix airplanes years may consider recommendation rather unusual However con sidering requirements Novice pattern feel Dirty Birdy has offer rolls inverted upright better airplane Ive ever seen does other maneuvers well design roll inverted upright occurs Immelmann Turn Two-Point Roll Outside Loop three maneuvers tough beginning Novice class fliers wish dollar Dirty Birdy flier beat Novice class need retractable landing gear compete successfully Novice class Lamar Gilbert proved finished 2nd 1978 Nats fixed gear Dirty Birdy believe extra weight problems retracts dont offer sufficient payoff forthe Novice class What engines required compete success fully different classes answer generally different class since maneu vers different Novice class has no maneuvers require tremendous vertical performance required airplane Expert Master classes Consequently high performance/piped engine neither required nor desired Novice class Advanced class lesser extent high performance/piped engines have own set problems besides high price actually detriment fliers lower classes Consider vicious circle average good 60 engine needs less 10 ounces fuel Novice pattern flight ever install Schnuerle-ported engine pump pressure carburetor tuned pipe need 16 ounces fuel must have power combination just carry around pump carburetor pipe fuel vertical performance improved isnt needed Novice class Get yourself good reliable standard 60 lot available also need top-of-the-line radio compete Novice pattern good reliable four channel radio system will suffice dont need channels because dont need retracts mixture control flaps Make sure servos have sufficient power center properly youre business radio standpoint Once have read rule book know what expected can go out practice pattern advice try maneuvers individu ally until feel relatively comfortable before trying whole pattern However once can maneuvers always perform complete pattern flight start tinish Unly repeat ~blown maneuver after 112 Model Aviation MASTER AIASCREW ANNOUNCING NEW 1I2A SERIES Accurately Pitched Balanced High Per Jrnmance Available Through Leading Distributors liked GIF SERIES standard size engines really going like new AA SERIES moldedfrom same tough composite material very carefully SERIES includes 6x4 hobby about $129 NO NONSENSE BALSA STRIPPERS B N U rfmms OIOBOOM AFAA $2800 VAOUOOOA FAN 2800 40N000 FAI.x 2400 inPPNSPROinS250 S C WON fhlrAiLSO ref SISFB { DOFFELT ~IP -U cur e POL BOX 99774SAN DIEGOCAUFO U 92109 e TELEPHONE 7144831984 JC Enterprises working opposedtwin version McCulloch-based Husky ELLCO Plastics displayed fine Zero new companion Piper Cherokee 235 Bert Baker design R Shettler Enterprises Pottery Rd RR 3 Vernon BC Canada ViT 6L6 Sonic Systems PO Box 192 Whippany NJ 07981 Top Flite Models Inc 1901 N Narragansett Ave Chicago IL 60639 Wendell Hostetler 1041 Heatherwood Orr yule OH 44667 J Z Products Zinger props 25029 So Ver mont Ave Harbor City CA 90710 Big Birds Welcome theyve got have peiformed everything except landing go back try maneuver again will give feeling continuity about flight will make comfortable step before judges Its also good idea practice help caller because thats way will contest caller can provide suggestions can improve caller will often see things wrong maneuver pilot didnt notice caller can also suggest improvement framing maneuver front judges getting airplane proper heading way pilot tells judges what doing very important judges know exactly whats going Its always good idea call maneuvers during practice its new strange thing contest youve got enough other things mind recommend calling sequence follows after maneuver complete caller tells pilot what maneuver next pilot tells judges before during turnaround After turnaround pilot informs judges airplane heading next maneuver pilot should call start completion maneuver proper times typical sequence might 1 next maneuver will Immelmann Turn 2 heading MAMMOTH SCALERS r have available ccuplete Jam Inesvazta aml rojfflers ,at 90 334718 hita a2og Quarter PS USE 12221 Sm Igmeim Ca 5*112 Immelmann Turn 3 maneuver beginning now 4 Maneuver complete think pilot should stand upwind judges have better chance hearing him flight line usually noisy place flight circle being used pilot upwind wind will blow voice back judges rather away pilots attitude toward judges also important feel pilots duty present flight can judged fairly impartially talking up down judges Extraneous comments quality maneuvers should avoided Dont apologize bad maneuver pat yourself back good judges will tell what thought about opinions important ones anyway Remember getting ready contest success pattern competition largely function preparations went Luck has very little results Ron Van Putte 12 Connie Drive Shalimar FL 32579 SAFE FLYING IS NO ACCIDENT RC SOARING/PR USS Co ntinued page 35 IBALSA SQ 16 TAPE- NOSE OF PLANE THIS DISTANCE WOULD BE THE SAME FOR ALL PLANES Ron Nelsons smoothlanding detector Rob suggests balsa taped nose distance end balsa ground would same airplane no matter what nose shape idea might present couple problems organizers its worth trying local level Large scale Last month some pics details passed gave impression what happening Europe 1/5 scale sailplane world Well lot us thinking compact cars two-meter easy-totote flying machines small group modelers turning out birds would find themselves suffering hangar rash 20-foot motor home Theres SB-9 availableready Data Wingspan 733 meters fuselage length 25 meters all-up weight 75 kilograms Fuselage epoxy molded wing foam core wood covering Airfoil Eppler 203 Cost 800 DM around $500 Germany does fly guess its like gent 600-pound gorilla asked walked Anywhere wanted SB-9 designed primarily slope flying birds size flying usually day weekend outing guess could say its like getting fill scale soaring scale bird far less 1/3 costnow convince wife Soar Gull gull-wing sailplane pictured month Duane Eisenbeiss Duane isnt flying United Airlines hes flying own full size Standard Cirrus its above hes drawing building board arent necessarily order priorities its what tells boss According Duane plane designed look different easy fly Theres no question its distinct feaures plane easy spot gaggle homing same thermal Duane says gull wing used mostly appearance does however cause wings lifting force act well above fuselage thereby contributing positive stability through pendulum effect Duane also says two control surfaces should have less drag three fore V chosen V tail also lighter weight savings tail plus factor design Soar Gull has over 150 flights results have beyond drawing board hopes Its 100 inches wingspan weighs 55 ounces has empty wing loading 88 ounces per square foot two-piece V tail slides onto wooden 116 Model Aviation REALISMSCALE ACCESSORIES TY WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 u OIlY VTHE NEW FIREBALL GLOW PLUGS ARE LEAKPROOF AND BLOWOUT PROOF EVEN FOR THE NEW MONSTER ENGINES BUT THEY ARE STILL THE OLD PRICE OF$1 10 WRITE NOW! SWANSON PO Box 151liZ Wayn eN 07470