RADIO CONTROL SOARING Friends dont let friends fly Two-Meter Mallett What need good-performing Two-Meter-class sailplane don t compete may interested medium-size thermal sailplane goes both fast slow penetrates wind slows down coring thermal hits landing spot get sailplane loading up six servos setup wings entire trailing edge can reflexed up go fast drooped increase lift launch can give ailerons up flaps down slow down landing soaring pilots start balsa two-servo two-meterwingspan sailplanes designs fly great Also its no trick find good Unlimited-class competition sailplane Nobody complains about 15-meter-span handlaunch gliders Ten manufacturers supply two- four-servo HLGs deliver terrific performance put six servos Two-Meter sailplane often falls out sky So what need have sweet-flying 2M Low weight maneuverability tip chord wide enough suppress tipstall low wing loading hang time good L/D cover ground speed escape sink Some designers search right airfoil others work planform development Let relate what learned three sailplane designers before tell about 2M choice 1996 season difficult produce good-flying TD contest 2M Frank Weston Maryland difficult What difficult getting modelers recognize art design really art compromise good design tradeoff brilliant flash inspiration 2M compromise some tradeoff performance must accepted restricted span plenty good flying Two-Meters just dont fly like bigger models other hand good pilot Two-Meter will always beat mediocre pilot Unlimited model difference pilot makes far greater difference model makes What can done achieve goal people would recognize advantages smaller model forget about comparing Unlimiteds problem would go away smaller model usually less expensive can take abuse nimble can flown smaller field launches well hi-start challenge fly well Some people find challenge exciting some have hard enough time getting out bed morning No compares HLG Unlimited HL taken what enjoyed increasing numbers year same 2M What see future competition 2M design can speak WACO Weston Aerodesign Co predicting future Mirage Mk II will use fully molded 100% Kevlar fuselage wing planform will double crescent airfoil will new proprietary 65 5% wings will use carbon shaft spars will two-piece improved portability Mk II will use slip-on nose cone have fully removable V-tail surfaces will sold way ARF fuselage components will pre-installed V-tail surfaces just screw wing slides Without painting fuselage model should ready fly less day model will cheap will light 85 ozIsq ft less strong good-looking very competitive will easy beginner fly will offer everything expert seeking yes fly out envelope will tipstall Norm PfeiferMissonri found Free Flight work 1950s 60s 36-inch design scaled up 54 inches wouldnt fly scaled up six feet would fly fine Sometimes scaling up down would work sometimes wouldnt People look aspect ratio first wing area design work ye thinking about wing volume cubic measure September 1996 85 Sailplane Systems Two-Meter Vaquero six-servo competition sailplane shown practice field upstate New York Tom Finch Sailplane Systems shows hollow molded wing stab Inland Soaring Society contest Riverside CA Jeff Pfeiffer Hummingbird II six servo competition sailplane Springfield Missouri Sandy Pfelfer photo Norm Pfeifers TwoMeter Hummingbird II six-servo competition sailplane flying Springfield Missouri Sandy Pfeifer photo wing area times thickness structure have push through air Moving wing through air takes certain characteristics wave action harmonics Reynolds numbers work unfortunately Two-Meter span right dead band aspect ratio considered using small chords explains FFs did didnt work certain spans Im happy flights getting 2M Hummingbird season What did make Hummingbird design work first look wing volume chord large puts effective range six servos can anything want airfoil flight worked keep weight down reduce weight can lose forward speed Careful attention streamlining gets speed back Hummingbird II new season incorporates features plus advancements molded-balsa fuselages Im now molding fuselages single piece balsa Jeff getting fourand five-minute flights hand launch new airplane future 2M think theres plenty room development 2M airplanes trying fly harmonic dead band have increase chord get higher wing volume Norm Pfeifer wraps field repair Norm Pfeifer shows fuselage constructed 1995 AMAILSF Nats Muncie 1996 molding balsa between layers Nats will also Muncie fiberglass increase impact resistance stagnant period around time first 2M championships 1962 1963 stagnating now around Super-V design Mark Levoe has put lot thought experimentation get very close perfect Right now Super-V top design Michael Selig has given us biggest advance airfoils long time 7037 9000 have high-rise upper leading edge secret two airfoils Now have build airplanes can use Ben ClerxCalifornia Good flying 2M contradictions terms Limiting span two meters aiso limits performance mainly due limited aspect ratio Any reasonable AR will thus limit chord Reynolds number limiting airfoil efficiency always comparing flight performance 3M airplanes 2Ms will never come close few 2Ms seem fly better others thats can try develop 2M better other 2Ms bets Vaquero Super-V 7037 Banshee Other possibilities NSP Dove CF version WACO 2M Airtronics Swift Recently newer 2Ms have hit market havent seen flown get good-flying 2M Light strong stiff airframe dictates composite construction Easy fly less control deflection drag Since 2Ms hard see distance bit twitchy youll probably flying wrong angle attack time compared 3M forgiving airfoil like 7037 future Same 3M Mostly improvement construction materials Most top airplanes have gone woodover-foam CF bagged since last summer Levoe Weston have doing years molded airplanes will next sooner think Visalia good place watch trends October think youll see top ten flying CF bagged airplanes Last year three Mako 2s top ten including tie first Visalia 97 will probably see molded airplanes top ten Thats say older airplanes will able winthe pilot counts lot still need competitive airplane Super Vs will go molded will Makos Top pilots want strong stiff airframes light aerodynamically clean also want get replacement airplanes identical previous airplane ie molded consistency other improvements will refined airfoils will perform better wind tunnel will work better counts Improvements will average pilot probably wont able see Joe Wurts will Youll gain 15 seconds five-minute flight bad turn will offset gains pilot still battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 FREEDOM new electnc starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1996 87 B&P Associates Gives Total Flight Line Prices Effective Nov 1 1 995 WINTERHAWK II COUPE Won 94 95 Nats Updated FiG Versivo Formed Body Tube Montreal Type Hub Bedi-Cot Ribs Tsp Grade Bolos00 Pnstpad Hardware$55 43 loch WingspanTexana add 025% Gales SPARROWHAWK P-30 Woo B7 93 95 Nato Formed Body Tube Bedi-Cot Bibs Yellow Czech Prop$3800 varpala Ati Hardware Designs J0b0 ODwyerTexans add 025% Sales ran FareOs oroers sand aleesror nrorsarion Order Kits tram ~-m Model Aircralt Labs Depi 214-438-9233108 S Lee SI Irving TX 75060 Robart Hinge Points Best Htngtng System World 7 Locate Hinge Point Position PO Box 1247 St chartes IL 60174 706-564-7616 important stiff clean airplane will get least twice gains launch alone Handling will play bigger role airfoils Some airplanes perform great wind tunnel perhaps level flight As soon try maneuvering ehermaling landing become handful Wind-tunnel performance based precise angle attack Real-world performance based average angle attack Thats high-performance airplanes sometimes need high-performance pilots get desired results know neutrally stable airplane no fun fly mile downwind course practice comes first expand saying cant beat lucky pilot add own saying Luck comes practice Thanks gentlemen sharing observations Manny Tau described what hed like see An easy transport allcomposite low-maintenance design preferably three-piece wing removable tail feathers can just slip box along Unlimited model Composites can keep light strong pedal-to-the-metal winch launchesand no fooling around covering peeling edges think Ive foand 2M well suited flying style skill level sailplane has fiberglass thin Spyder foam composite construction molded fuselage hollow molded wing stabs Its delivered almost fully built weighs 40 ounces flies great hands have purchased will campaigning Tom Finch Vaquero during 1996 contest season Designer Contact Information Ben Clerx Mako 90 Ocean Vista Newport Beach CA 92660 714 721-8848 E-mail BCLERX@aolcom Tom Finch Vaquero Sailplane Systems 1222 5 Cypress Unit G Ontario CA 91762 909 391-2838 E-mail Tfinch3543@aolcom Norm Pfeifer Hummingbird 3430 Ashley Ct Springfield MO 65809 417 886-9759 Frank Weston Mirage Weston Aerodesign Co WACO 944 Placid Ct Arnold MD 21012 410 974-0968 Fax 410 757-8580 e-mail WACO@arinet Web site http/www2arinet80/home/waco/ ember 1996 89 SUPER FAST LOW ImELI VERY PRICES iI L LLLWAYS MINIATURE BEARINGS FOR HOBBY & INDUSTRY For3 Complete Product Lines Have R/C Cars Premium UltraSeal frictionless sealed maintenance-free bearings Largest TrucksEcanoPewei bea ngs eng neered strength & du ab YInventory High-Speed h gh heat eng ne bea ngs Boats Standard US Metre s zes PlanesAsk us about MIDAS TOUCH Other Foe ProductsWidest &Send $3 00 CatalogsSelection Helicopters Deae Pog ams Ave abe BOCA BEARING Co iN STOCK 7040W Palmetto Park Rd Suite 2304 Ml Boca Rutun FL 33433 Tel 407-998-0004 407-998-0119 USA CANADA CALL TOLL FREE 800-332-3256 CANADA USA . BUZZARD SOARS AGAIN 50-minute VIDEO based popular OLD BUzZARDS SOARING BOOK Dave Thornburg Launching thermailng landings speciai section hand launch technique Funny inatructlvel Video $2795 Book $1695-or both $3995 PONY X utheD Dw fNX\/ AThq NM 37123 sos 2994749 DO YOU SPEAK few left $1 95 prices postpa Robart Hinge Points Best Hinging System World ~IllIiI Drill Hinge Point Hole PO Box 1247 St chaes IL 80174 700-5e4-7818
Edition: Model Aviation - 1996/09
Page Numbers: 85, 86, 87, 89
Edition: Model Aviation - 1996/09
Page Numbers: 85, 86, 87, 89
RADIO CONTROL SOARING Friends dont let friends fly Two-Meter Mallett What need good-performing Two-Meter-class sailplane don t compete may interested medium-size thermal sailplane goes both fast slow penetrates wind slows down coring thermal hits landing spot get sailplane loading up six servos setup wings entire trailing edge can reflexed up go fast drooped increase lift launch can give ailerons up flaps down slow down landing soaring pilots start balsa two-servo two-meterwingspan sailplanes designs fly great Also its no trick find good Unlimited-class competition sailplane Nobody complains about 15-meter-span handlaunch gliders Ten manufacturers supply two- four-servo HLGs deliver terrific performance put six servos Two-Meter sailplane often falls out sky So what need have sweet-flying 2M Low weight maneuverability tip chord wide enough suppress tipstall low wing loading hang time good L/D cover ground speed escape sink Some designers search right airfoil others work planform development Let relate what learned three sailplane designers before tell about 2M choice 1996 season difficult produce good-flying TD contest 2M Frank Weston Maryland difficult What difficult getting modelers recognize art design really art compromise good design tradeoff brilliant flash inspiration 2M compromise some tradeoff performance must accepted restricted span plenty good flying Two-Meters just dont fly like bigger models other hand good pilot Two-Meter will always beat mediocre pilot Unlimited model difference pilot makes far greater difference model makes What can done achieve goal people would recognize advantages smaller model forget about comparing Unlimiteds problem would go away smaller model usually less expensive can take abuse nimble can flown smaller field launches well hi-start challenge fly well Some people find challenge exciting some have hard enough time getting out bed morning No compares HLG Unlimited HL taken what enjoyed increasing numbers year same 2M What see future competition 2M design can speak WACO Weston Aerodesign Co predicting future Mirage Mk II will use fully molded 100% Kevlar fuselage wing planform will double crescent airfoil will new proprietary 65 5% wings will use carbon shaft spars will two-piece improved portability Mk II will use slip-on nose cone have fully removable V-tail surfaces will sold way ARF fuselage components will pre-installed V-tail surfaces just screw wing slides Without painting fuselage model should ready fly less day model will cheap will light 85 ozIsq ft less strong good-looking very competitive will easy beginner fly will offer everything expert seeking yes fly out envelope will tipstall Norm PfeiferMissonri found Free Flight work 1950s 60s 36-inch design scaled up 54 inches wouldnt fly scaled up six feet would fly fine Sometimes scaling up down would work sometimes wouldnt People look aspect ratio first wing area design work ye thinking about wing volume cubic measure September 1996 85 Sailplane Systems Two-Meter Vaquero six-servo competition sailplane shown practice field upstate New York Tom Finch Sailplane Systems shows hollow molded wing stab Inland Soaring Society contest Riverside CA Jeff Pfeiffer Hummingbird II six servo competition sailplane Springfield Missouri Sandy Pfelfer photo Norm Pfeifers TwoMeter Hummingbird II six-servo competition sailplane flying Springfield Missouri Sandy Pfeifer photo wing area times thickness structure have push through air Moving wing through air takes certain characteristics wave action harmonics Reynolds numbers work unfortunately Two-Meter span right dead band aspect ratio considered using small chords explains FFs did didnt work certain spans Im happy flights getting 2M Hummingbird season What did make Hummingbird design work first look wing volume chord large puts effective range six servos can anything want airfoil flight worked keep weight down reduce weight can lose forward speed Careful attention streamlining gets speed back Hummingbird II new season incorporates features plus advancements molded-balsa fuselages Im now molding fuselages single piece balsa Jeff getting fourand five-minute flights hand launch new airplane future 2M think theres plenty room development 2M airplanes trying fly harmonic dead band have increase chord get higher wing volume Norm Pfeifer wraps field repair Norm Pfeifer shows fuselage constructed 1995 AMAILSF Nats Muncie 1996 molding balsa between layers Nats will also Muncie fiberglass increase impact resistance stagnant period around time first 2M championships 1962 1963 stagnating now around Super-V design Mark Levoe has put lot thought experimentation get very close perfect Right now Super-V top design Michael Selig has given us biggest advance airfoils long time 7037 9000 have high-rise upper leading edge secret two airfoils Now have build airplanes can use Ben ClerxCalifornia Good flying 2M contradictions terms Limiting span two meters aiso limits performance mainly due limited aspect ratio Any reasonable AR will thus limit chord Reynolds number limiting airfoil efficiency always comparing flight performance 3M airplanes 2Ms will never come close few 2Ms seem fly better others thats can try develop 2M better other 2Ms bets Vaquero Super-V 7037 Banshee Other possibilities NSP Dove CF version WACO 2M Airtronics Swift Recently newer 2Ms have hit market havent seen flown get good-flying 2M Light strong stiff airframe dictates composite construction Easy fly less control deflection drag Since 2Ms hard see distance bit twitchy youll probably flying wrong angle attack time compared 3M forgiving airfoil like 7037 future Same 3M Mostly improvement construction materials Most top airplanes have gone woodover-foam CF bagged since last summer Levoe Weston have doing years molded airplanes will next sooner think Visalia good place watch trends October think youll see top ten flying CF bagged airplanes Last year three Mako 2s top ten including tie first Visalia 97 will probably see molded airplanes top ten Thats say older airplanes will able winthe pilot counts lot still need competitive airplane Super Vs will go molded will Makos Top pilots want strong stiff airframes light aerodynamically clean also want get replacement airplanes identical previous airplane ie molded consistency other improvements will refined airfoils will perform better wind tunnel will work better counts Improvements will average pilot probably wont able see Joe Wurts will Youll gain 15 seconds five-minute flight bad turn will offset gains pilot still battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 FREEDOM new electnc starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1996 87 B&P Associates Gives Total Flight Line Prices Effective Nov 1 1 995 WINTERHAWK II COUPE Won 94 95 Nats Updated FiG Versivo Formed Body Tube Montreal Type Hub Bedi-Cot Ribs Tsp Grade Bolos00 Pnstpad Hardware$55 43 loch WingspanTexana add 025% Gales SPARROWHAWK P-30 Woo B7 93 95 Nato Formed Body Tube Bedi-Cot Bibs Yellow Czech Prop$3800 varpala Ati Hardware Designs J0b0 ODwyerTexans add 025% Sales ran FareOs oroers sand aleesror nrorsarion Order Kits tram ~-m Model Aircralt Labs Depi 214-438-9233108 S Lee SI Irving TX 75060 Robart Hinge Points Best Htngtng System World 7 Locate Hinge Point Position PO Box 1247 St chartes IL 60174 706-564-7616 important stiff clean airplane will get least twice gains launch alone Handling will play bigger role airfoils Some airplanes perform great wind tunnel perhaps level flight As soon try maneuvering ehermaling landing become handful Wind-tunnel performance based precise angle attack Real-world performance based average angle attack Thats high-performance airplanes sometimes need high-performance pilots get desired results know neutrally stable airplane no fun fly mile downwind course practice comes first expand saying cant beat lucky pilot add own saying Luck comes practice Thanks gentlemen sharing observations Manny Tau described what hed like see An easy transport allcomposite low-maintenance design preferably three-piece wing removable tail feathers can just slip box along Unlimited model Composites can keep light strong pedal-to-the-metal winch launchesand no fooling around covering peeling edges think Ive foand 2M well suited flying style skill level sailplane has fiberglass thin Spyder foam composite construction molded fuselage hollow molded wing stabs Its delivered almost fully built weighs 40 ounces flies great hands have purchased will campaigning Tom Finch Vaquero during 1996 contest season Designer Contact Information Ben Clerx Mako 90 Ocean Vista Newport Beach CA 92660 714 721-8848 E-mail BCLERX@aolcom Tom Finch Vaquero Sailplane Systems 1222 5 Cypress Unit G Ontario CA 91762 909 391-2838 E-mail Tfinch3543@aolcom Norm Pfeifer Hummingbird 3430 Ashley Ct Springfield MO 65809 417 886-9759 Frank Weston Mirage Weston Aerodesign Co WACO 944 Placid Ct Arnold MD 21012 410 974-0968 Fax 410 757-8580 e-mail WACO@arinet Web site http/www2arinet80/home/waco/ ember 1996 89 SUPER FAST LOW ImELI VERY PRICES iI L LLLWAYS MINIATURE BEARINGS FOR HOBBY & INDUSTRY For3 Complete Product Lines Have R/C Cars Premium UltraSeal frictionless sealed maintenance-free bearings Largest TrucksEcanoPewei bea ngs eng neered strength & du ab YInventory High-Speed h gh heat eng ne bea ngs Boats Standard US Metre s zes PlanesAsk us about MIDAS TOUCH Other Foe ProductsWidest &Send $3 00 CatalogsSelection Helicopters Deae Pog ams Ave abe BOCA BEARING Co iN STOCK 7040W Palmetto Park Rd Suite 2304 Ml Boca Rutun FL 33433 Tel 407-998-0004 407-998-0119 USA CANADA CALL TOLL FREE 800-332-3256 CANADA USA . BUZZARD SOARS AGAIN 50-minute VIDEO based popular OLD BUzZARDS SOARING BOOK Dave Thornburg Launching thermailng landings speciai section hand launch technique Funny inatructlvel Video $2795 Book $1695-or both $3995 PONY X utheD Dw fNX\/ AThq NM 37123 sos 2994749 DO YOU SPEAK few left $1 95 prices postpa Robart Hinge Points Best Hinging System World ~IllIiI Drill Hinge Point Hole PO Box 1247 St chaes IL 80174 700-5e4-7818
Edition: Model Aviation - 1996/09
Page Numbers: 85, 86, 87, 89
RADIO CONTROL SOARING Friends dont let friends fly Two-Meter Mallett What need good-performing Two-Meter-class sailplane don t compete may interested medium-size thermal sailplane goes both fast slow penetrates wind slows down coring thermal hits landing spot get sailplane loading up six servos setup wings entire trailing edge can reflexed up go fast drooped increase lift launch can give ailerons up flaps down slow down landing soaring pilots start balsa two-servo two-meterwingspan sailplanes designs fly great Also its no trick find good Unlimited-class competition sailplane Nobody complains about 15-meter-span handlaunch gliders Ten manufacturers supply two- four-servo HLGs deliver terrific performance put six servos Two-Meter sailplane often falls out sky So what need have sweet-flying 2M Low weight maneuverability tip chord wide enough suppress tipstall low wing loading hang time good L/D cover ground speed escape sink Some designers search right airfoil others work planform development Let relate what learned three sailplane designers before tell about 2M choice 1996 season difficult produce good-flying TD contest 2M Frank Weston Maryland difficult What difficult getting modelers recognize art design really art compromise good design tradeoff brilliant flash inspiration 2M compromise some tradeoff performance must accepted restricted span plenty good flying Two-Meters just dont fly like bigger models other hand good pilot Two-Meter will always beat mediocre pilot Unlimited model difference pilot makes far greater difference model makes What can done achieve goal people would recognize advantages smaller model forget about comparing Unlimiteds problem would go away smaller model usually less expensive can take abuse nimble can flown smaller field launches well hi-start challenge fly well Some people find challenge exciting some have hard enough time getting out bed morning No compares HLG Unlimited HL taken what enjoyed increasing numbers year same 2M What see future competition 2M design can speak WACO Weston Aerodesign Co predicting future Mirage Mk II will use fully molded 100% Kevlar fuselage wing planform will double crescent airfoil will new proprietary 65 5% wings will use carbon shaft spars will two-piece improved portability Mk II will use slip-on nose cone have fully removable V-tail surfaces will sold way ARF fuselage components will pre-installed V-tail surfaces just screw wing slides Without painting fuselage model should ready fly less day model will cheap will light 85 ozIsq ft less strong good-looking very competitive will easy beginner fly will offer everything expert seeking yes fly out envelope will tipstall Norm PfeiferMissonri found Free Flight work 1950s 60s 36-inch design scaled up 54 inches wouldnt fly scaled up six feet would fly fine Sometimes scaling up down would work sometimes wouldnt People look aspect ratio first wing area design work ye thinking about wing volume cubic measure September 1996 85 Sailplane Systems Two-Meter Vaquero six-servo competition sailplane shown practice field upstate New York Tom Finch Sailplane Systems shows hollow molded wing stab Inland Soaring Society contest Riverside CA Jeff Pfeiffer Hummingbird II six servo competition sailplane Springfield Missouri Sandy Pfelfer photo Norm Pfeifers TwoMeter Hummingbird II six-servo competition sailplane flying Springfield Missouri Sandy Pfeifer photo wing area times thickness structure have push through air Moving wing through air takes certain characteristics wave action harmonics Reynolds numbers work unfortunately Two-Meter span right dead band aspect ratio considered using small chords explains FFs did didnt work certain spans Im happy flights getting 2M Hummingbird season What did make Hummingbird design work first look wing volume chord large puts effective range six servos can anything want airfoil flight worked keep weight down reduce weight can lose forward speed Careful attention streamlining gets speed back Hummingbird II new season incorporates features plus advancements molded-balsa fuselages Im now molding fuselages single piece balsa Jeff getting fourand five-minute flights hand launch new airplane future 2M think theres plenty room development 2M airplanes trying fly harmonic dead band have increase chord get higher wing volume Norm Pfeifer wraps field repair Norm Pfeifer shows fuselage constructed 1995 AMAILSF Nats Muncie 1996 molding balsa between layers Nats will also Muncie fiberglass increase impact resistance stagnant period around time first 2M championships 1962 1963 stagnating now around Super-V design Mark Levoe has put lot thought experimentation get very close perfect Right now Super-V top design Michael Selig has given us biggest advance airfoils long time 7037 9000 have high-rise upper leading edge secret two airfoils Now have build airplanes can use Ben ClerxCalifornia Good flying 2M contradictions terms Limiting span two meters aiso limits performance mainly due limited aspect ratio Any reasonable AR will thus limit chord Reynolds number limiting airfoil efficiency always comparing flight performance 3M airplanes 2Ms will never come close few 2Ms seem fly better others thats can try develop 2M better other 2Ms bets Vaquero Super-V 7037 Banshee Other possibilities NSP Dove CF version WACO 2M Airtronics Swift Recently newer 2Ms have hit market havent seen flown get good-flying 2M Light strong stiff airframe dictates composite construction Easy fly less control deflection drag Since 2Ms hard see distance bit twitchy youll probably flying wrong angle attack time compared 3M forgiving airfoil like 7037 future Same 3M Mostly improvement construction materials Most top airplanes have gone woodover-foam CF bagged since last summer Levoe Weston have doing years molded airplanes will next sooner think Visalia good place watch trends October think youll see top ten flying CF bagged airplanes Last year three Mako 2s top ten including tie first Visalia 97 will probably see molded airplanes top ten Thats say older airplanes will able winthe pilot counts lot still need competitive airplane Super Vs will go molded will Makos Top pilots want strong stiff airframes light aerodynamically clean also want get replacement airplanes identical previous airplane ie molded consistency other improvements will refined airfoils will perform better wind tunnel will work better counts Improvements will average pilot probably wont able see Joe Wurts will Youll gain 15 seconds five-minute flight bad turn will offset gains pilot still battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 FREEDOM new electnc starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1996 87 B&P Associates Gives Total Flight Line Prices Effective Nov 1 1 995 WINTERHAWK II COUPE Won 94 95 Nats Updated FiG Versivo Formed Body Tube Montreal Type Hub Bedi-Cot Ribs Tsp Grade Bolos00 Pnstpad Hardware$55 43 loch WingspanTexana add 025% Gales SPARROWHAWK P-30 Woo B7 93 95 Nato Formed Body Tube Bedi-Cot Bibs Yellow Czech Prop$3800 varpala Ati Hardware Designs J0b0 ODwyerTexans add 025% Sales ran FareOs oroers sand aleesror nrorsarion Order Kits tram ~-m Model Aircralt Labs Depi 214-438-9233108 S Lee SI Irving TX 75060 Robart Hinge Points Best Htngtng System World 7 Locate Hinge Point Position PO Box 1247 St chartes IL 60174 706-564-7616 important stiff clean airplane will get least twice gains launch alone Handling will play bigger role airfoils Some airplanes perform great wind tunnel perhaps level flight As soon try maneuvering ehermaling landing become handful Wind-tunnel performance based precise angle attack Real-world performance based average angle attack Thats high-performance airplanes sometimes need high-performance pilots get desired results know neutrally stable airplane no fun fly mile downwind course practice comes first expand saying cant beat lucky pilot add own saying Luck comes practice Thanks gentlemen sharing observations Manny Tau described what hed like see An easy transport allcomposite low-maintenance design preferably three-piece wing removable tail feathers can just slip box along Unlimited model Composites can keep light strong pedal-to-the-metal winch launchesand no fooling around covering peeling edges think Ive foand 2M well suited flying style skill level sailplane has fiberglass thin Spyder foam composite construction molded fuselage hollow molded wing stabs Its delivered almost fully built weighs 40 ounces flies great hands have purchased will campaigning Tom Finch Vaquero during 1996 contest season Designer Contact Information Ben Clerx Mako 90 Ocean Vista Newport Beach CA 92660 714 721-8848 E-mail BCLERX@aolcom Tom Finch Vaquero Sailplane Systems 1222 5 Cypress Unit G Ontario CA 91762 909 391-2838 E-mail Tfinch3543@aolcom Norm Pfeifer Hummingbird 3430 Ashley Ct Springfield MO 65809 417 886-9759 Frank Weston Mirage Weston Aerodesign Co WACO 944 Placid Ct Arnold MD 21012 410 974-0968 Fax 410 757-8580 e-mail WACO@arinet Web site http/www2arinet80/home/waco/ ember 1996 89 SUPER FAST LOW ImELI VERY PRICES iI L LLLWAYS MINIATURE BEARINGS FOR HOBBY & INDUSTRY For3 Complete Product Lines Have R/C Cars Premium UltraSeal frictionless sealed maintenance-free bearings Largest TrucksEcanoPewei bea ngs eng neered strength & du ab YInventory High-Speed h gh heat eng ne bea ngs Boats Standard US Metre s zes PlanesAsk us about MIDAS TOUCH Other Foe ProductsWidest &Send $3 00 CatalogsSelection Helicopters Deae Pog ams Ave abe BOCA BEARING Co iN STOCK 7040W Palmetto Park Rd Suite 2304 Ml Boca Rutun FL 33433 Tel 407-998-0004 407-998-0119 USA CANADA CALL TOLL FREE 800-332-3256 CANADA USA . BUZZARD SOARS AGAIN 50-minute VIDEO based popular OLD BUzZARDS SOARING BOOK Dave Thornburg Launching thermailng landings speciai section hand launch technique Funny inatructlvel Video $2795 Book $1695-or both $3995 PONY X utheD Dw fNX\/ AThq NM 37123 sos 2994749 DO YOU SPEAK few left $1 95 prices postpa Robart Hinge Points Best Hinging System World ~IllIiI Drill Hinge Point Hole PO Box 1247 St chaes IL 80174 700-5e4-7818
Edition: Model Aviation - 1996/09
Page Numbers: 85, 86, 87, 89
RADIO CONTROL SOARING Friends dont let friends fly Two-Meter Mallett What need good-performing Two-Meter-class sailplane don t compete may interested medium-size thermal sailplane goes both fast slow penetrates wind slows down coring thermal hits landing spot get sailplane loading up six servos setup wings entire trailing edge can reflexed up go fast drooped increase lift launch can give ailerons up flaps down slow down landing soaring pilots start balsa two-servo two-meterwingspan sailplanes designs fly great Also its no trick find good Unlimited-class competition sailplane Nobody complains about 15-meter-span handlaunch gliders Ten manufacturers supply two- four-servo HLGs deliver terrific performance put six servos Two-Meter sailplane often falls out sky So what need have sweet-flying 2M Low weight maneuverability tip chord wide enough suppress tipstall low wing loading hang time good L/D cover ground speed escape sink Some designers search right airfoil others work planform development Let relate what learned three sailplane designers before tell about 2M choice 1996 season difficult produce good-flying TD contest 2M Frank Weston Maryland difficult What difficult getting modelers recognize art design really art compromise good design tradeoff brilliant flash inspiration 2M compromise some tradeoff performance must accepted restricted span plenty good flying Two-Meters just dont fly like bigger models other hand good pilot Two-Meter will always beat mediocre pilot Unlimited model difference pilot makes far greater difference model makes What can done achieve goal people would recognize advantages smaller model forget about comparing Unlimiteds problem would go away smaller model usually less expensive can take abuse nimble can flown smaller field launches well hi-start challenge fly well Some people find challenge exciting some have hard enough time getting out bed morning No compares HLG Unlimited HL taken what enjoyed increasing numbers year same 2M What see future competition 2M design can speak WACO Weston Aerodesign Co predicting future Mirage Mk II will use fully molded 100% Kevlar fuselage wing planform will double crescent airfoil will new proprietary 65 5% wings will use carbon shaft spars will two-piece improved portability Mk II will use slip-on nose cone have fully removable V-tail surfaces will sold way ARF fuselage components will pre-installed V-tail surfaces just screw wing slides Without painting fuselage model should ready fly less day model will cheap will light 85 ozIsq ft less strong good-looking very competitive will easy beginner fly will offer everything expert seeking yes fly out envelope will tipstall Norm PfeiferMissonri found Free Flight work 1950s 60s 36-inch design scaled up 54 inches wouldnt fly scaled up six feet would fly fine Sometimes scaling up down would work sometimes wouldnt People look aspect ratio first wing area design work ye thinking about wing volume cubic measure September 1996 85 Sailplane Systems Two-Meter Vaquero six-servo competition sailplane shown practice field upstate New York Tom Finch Sailplane Systems shows hollow molded wing stab Inland Soaring Society contest Riverside CA Jeff Pfeiffer Hummingbird II six servo competition sailplane Springfield Missouri Sandy Pfelfer photo Norm Pfeifers TwoMeter Hummingbird II six-servo competition sailplane flying Springfield Missouri Sandy Pfeifer photo wing area times thickness structure have push through air Moving wing through air takes certain characteristics wave action harmonics Reynolds numbers work unfortunately Two-Meter span right dead band aspect ratio considered using small chords explains FFs did didnt work certain spans Im happy flights getting 2M Hummingbird season What did make Hummingbird design work first look wing volume chord large puts effective range six servos can anything want airfoil flight worked keep weight down reduce weight can lose forward speed Careful attention streamlining gets speed back Hummingbird II new season incorporates features plus advancements molded-balsa fuselages Im now molding fuselages single piece balsa Jeff getting fourand five-minute flights hand launch new airplane future 2M think theres plenty room development 2M airplanes trying fly harmonic dead band have increase chord get higher wing volume Norm Pfeifer wraps field repair Norm Pfeifer shows fuselage constructed 1995 AMAILSF Nats Muncie 1996 molding balsa between layers Nats will also Muncie fiberglass increase impact resistance stagnant period around time first 2M championships 1962 1963 stagnating now around Super-V design Mark Levoe has put lot thought experimentation get very close perfect Right now Super-V top design Michael Selig has given us biggest advance airfoils long time 7037 9000 have high-rise upper leading edge secret two airfoils Now have build airplanes can use Ben ClerxCalifornia Good flying 2M contradictions terms Limiting span two meters aiso limits performance mainly due limited aspect ratio Any reasonable AR will thus limit chord Reynolds number limiting airfoil efficiency always comparing flight performance 3M airplanes 2Ms will never come close few 2Ms seem fly better others thats can try develop 2M better other 2Ms bets Vaquero Super-V 7037 Banshee Other possibilities NSP Dove CF version WACO 2M Airtronics Swift Recently newer 2Ms have hit market havent seen flown get good-flying 2M Light strong stiff airframe dictates composite construction Easy fly less control deflection drag Since 2Ms hard see distance bit twitchy youll probably flying wrong angle attack time compared 3M forgiving airfoil like 7037 future Same 3M Mostly improvement construction materials Most top airplanes have gone woodover-foam CF bagged since last summer Levoe Weston have doing years molded airplanes will next sooner think Visalia good place watch trends October think youll see top ten flying CF bagged airplanes Last year three Mako 2s top ten including tie first Visalia 97 will probably see molded airplanes top ten Thats say older airplanes will able winthe pilot counts lot still need competitive airplane Super Vs will go molded will Makos Top pilots want strong stiff airframes light aerodynamically clean also want get replacement airplanes identical previous airplane ie molded consistency other improvements will refined airfoils will perform better wind tunnel will work better counts Improvements will average pilot probably wont able see Joe Wurts will Youll gain 15 seconds five-minute flight bad turn will offset gains pilot still battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 FREEDOM new electnc starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1996 87 B&P Associates Gives Total Flight Line Prices Effective Nov 1 1 995 WINTERHAWK II COUPE Won 94 95 Nats Updated FiG Versivo Formed Body Tube Montreal Type Hub Bedi-Cot Ribs Tsp Grade Bolos00 Pnstpad Hardware$55 43 loch WingspanTexana add 025% Gales SPARROWHAWK P-30 Woo B7 93 95 Nato Formed Body Tube Bedi-Cot Bibs Yellow Czech Prop$3800 varpala Ati Hardware Designs J0b0 ODwyerTexans add 025% Sales ran FareOs oroers sand aleesror nrorsarion Order Kits tram ~-m Model Aircralt Labs Depi 214-438-9233108 S Lee SI Irving TX 75060 Robart Hinge Points Best Htngtng System World 7 Locate Hinge Point Position PO Box 1247 St chartes IL 60174 706-564-7616 important stiff clean airplane will get least twice gains launch alone Handling will play bigger role airfoils Some airplanes perform great wind tunnel perhaps level flight As soon try maneuvering ehermaling landing become handful Wind-tunnel performance based precise angle attack Real-world performance based average angle attack Thats high-performance airplanes sometimes need high-performance pilots get desired results know neutrally stable airplane no fun fly mile downwind course practice comes first expand saying cant beat lucky pilot add own saying Luck comes practice Thanks gentlemen sharing observations Manny Tau described what hed like see An easy transport allcomposite low-maintenance design preferably three-piece wing removable tail feathers can just slip box along Unlimited model Composites can keep light strong pedal-to-the-metal winch launchesand no fooling around covering peeling edges think Ive foand 2M well suited flying style skill level sailplane has fiberglass thin Spyder foam composite construction molded fuselage hollow molded wing stabs Its delivered almost fully built weighs 40 ounces flies great hands have purchased will campaigning Tom Finch Vaquero during 1996 contest season Designer Contact Information Ben Clerx Mako 90 Ocean Vista Newport Beach CA 92660 714 721-8848 E-mail BCLERX@aolcom Tom Finch Vaquero Sailplane Systems 1222 5 Cypress Unit G Ontario CA 91762 909 391-2838 E-mail Tfinch3543@aolcom Norm Pfeifer Hummingbird 3430 Ashley Ct Springfield MO 65809 417 886-9759 Frank Weston Mirage Weston Aerodesign Co WACO 944 Placid Ct Arnold MD 21012 410 974-0968 Fax 410 757-8580 e-mail WACO@arinet Web site http/www2arinet80/home/waco/ ember 1996 89 SUPER FAST LOW ImELI VERY PRICES iI L LLLWAYS MINIATURE BEARINGS FOR HOBBY & INDUSTRY For3 Complete Product Lines Have R/C Cars Premium UltraSeal frictionless sealed maintenance-free bearings Largest TrucksEcanoPewei bea ngs eng neered strength & du ab YInventory High-Speed h gh heat eng ne bea ngs Boats Standard US Metre s zes PlanesAsk us about MIDAS TOUCH Other Foe ProductsWidest &Send $3 00 CatalogsSelection Helicopters Deae Pog ams Ave abe BOCA BEARING Co iN STOCK 7040W Palmetto Park Rd Suite 2304 Ml Boca Rutun FL 33433 Tel 407-998-0004 407-998-0119 USA CANADA CALL TOLL FREE 800-332-3256 CANADA USA . BUZZARD SOARS AGAIN 50-minute VIDEO based popular OLD BUzZARDS SOARING BOOK Dave Thornburg Launching thermailng landings speciai section hand launch technique Funny inatructlvel Video $2795 Book $1695-or both $3995 PONY X utheD Dw fNX\/ AThq NM 37123 sos 2994749 DO YOU SPEAK few left $1 95 prices postpa Robart Hinge Points Best Hinging System World ~IllIiI Drill Hinge Point Hole PO Box 1247 St chaes IL 80174 700-5e4-7818
