RC MODEL AIRCRAFT technology ginning move big way mil itary US NATO forces expanding plans use Unmanned Aerial Vehi cles UAVs multitude uses land sea Beyond military beginnings civiiafi uses model air craft derivatives surveying border sur veillance forestry other fields Its military signifi cant new developments RC technology happening will focus article whole thing got started rael group RC modelers thought hobby skills could help countrys army during its Lebanon campaign problem solved Israeli Air Force aircraft being hit enemy surface-toair missiles SAMs spotted fight ers radar infrared IR signatures modelers prepared large about 15-ftwingspan model fitted simple cam era equipment autopilot went looking SAM sites experiment wildly successful plane could loaf about 5000 ft area SAMs known detect its camera coordi nates fed back Israeli Army person nel sent out artillery fighters destroy SAMs model planes themselves appeared invulnerable no radar signature small altitude couldnt seen heard ground No knew circling high sky silently watching movement ground transmitting images back controllers electronically next step military usage RC models took place US Navy bat tleship USS Iowa positioned off Leba non shelling shore installations Needing determine exactly huge 16-in shells falling Navy asked Israe lis help answer naturally model airplane Navy fascinated see efficiently model aircraft could watch fall shells immediately transmit data ground personnel Gunnery corrections could easily quickly made story fascinated Navy peo June 1989 91 Top A Pioneer being rocket-launched night Pioneers have used extensively aboara Battleship USS Iowa rocket launches essential Above Pointer tilt-rotor UAV first UAV using tilt-rotor technology designed take oft vertically transition level flight combining best features helicopter fixed-wing flight pie watching TV screen UAV controllers hut close surveillance car moving up Bekaa Valley Leba non cars license plate could easily read UAV recorded driver stop ping outside building entering leaving driving away totally unaware unseen audience miles away Navy enthusiastic bought several examples later develop ment Israeli UAV called Pioneer built US AM Corporation con junction Israels Mazlat Navy gan integrating fleet use difficulty fact some flights hit headlines last summer inexperienced RC pilots flew frame recapture net wreck ing Meanwhile US Marine Corps getting interested battle field reconnaissance possibilities UAVs appealing idea credited di vision commander confusion heat battle ordered model airplane brought out box launched mission see over hill around corner after fun damental reconnaissance mission Along gunnery-spotting capability wanted Navy its aircraft free balloons went war first place Marines too bought some Pio neers called RC modelers among ranks report duty learn fly US Army working its own program some time spending great deal money Aquila UAV basically flying wing pusher prop step away model aircraft practice larger heavier though made much use composite materials models also classic example what happens overenthusiastic people try too much Although Aquila designed SkyEye R4E-50 UAV unmanned aerial vehicle autonomous flight 20-TI-span bird can fly given area carry out wide range of military duties such surveillance pho tography target spotting decoy duty etc return base risk personnel SkyEye controllers located safe rear area scanning battlefield scene through eyes UAV thick action screen displays visual information other will show map coordinates ne Iacsca vigeg map amupsay enagmes inieiiigence peruonne track position ot SkyEye relate its transmitted imagery tactical situation displayed area video display shown giving controllers continuous detailed picture SkyEyes altitude flight attitude control settings heading other aspects its assigned mission Sprite twin rotor UAV built Great Britain currently undergoing Foreign Weapons Evaluation tests aboard US mili tary vessels stationed Gulf Mexico built Lockheed itself perfectly satisfactory airplane problems mission design testing led Armys deci sion go production Thats history things stand today US NATO member gov ernments see tremendous potential un manned vehicles kinds taking over too dangerous men go unmanned vehicle will job just well far expensive manned vehicle will save lives expensive equipment Beyond scope article robotic miniature scout submarines tanks scout cars etc fact un manned aerial vehicle farthest along development Defense Department plans spend 21 billion dollars UAV procurement re search development over five-year period starting 1990 1989 bill alone will over 91 million dollars will four categories UAVs close-range short-range medium-range endur ance medium-range UAVs beyond interest because will large heavy very fast able fly out 700km launch point perhaps close-range endurance categories closest model aircraft technology close-range UAVs will required have range up 30km endurance UAVs will have able stay aloft 36-40 hours simply doing lazy eights up keeping eye things jobs will visual elec tronic surveillance eavesdropping jam ming enemy signals radars com munications relaying among other tasks Lets have look some small UAVs have developed ones look like model aircraft created Naval Air Develop ment Center Warminster PA Robin kit based Curtiss Robin late 1920s UAV version has strengthened Cameras have hung exhaust extension added prevent oil being blown over lens can carry 25-lb payload 50 mph flight duration about two hours Goodquality pictures have obtained craft 20 miles away airplane well target tracking sensor controlled pulse code modulation system Naval Air Development Centers own design called Loon pusher model ca pable carrying 10-lb payload 100 mph Centers reason doing perhaps overriding reasons June 1989 93 typical net capture Armys Aquila UAV end its mission enters net safely decelerated extending-lines attached kinetic energy absorption devices Naval Air Development Centers Robin UAV modified standard Robin kit fitted two surveillance cameras mounted under fuselage under wing Note exhaust extension installed keep oil away cameras lenses Loon sleek looking UAV designed Naval Air Development Center airplane capable carrying 10-pound payload Its assigned target area 100 miles per hour having UAVs cost entire UAV system several birds ground control station support equipment may tenth less manned strike/reconnaissance aircraft Another small UAV has developed SCI Technology Inc Huntsville AL make use fiber optic technology 80-in-wingspan model powered glow plug engine intended fly away its controller unreeling length opti cal fiber bobbin rear fu selage signal models TV camera transmitted via optical fiber ground controller sees image plane himself sees what camera sees course general principle UAVs advantage fiber optics signal cannot jammed enemy could radio signal SCI has proposed UAV Army miniature spotter its fiber optic guided missile ground-to-air missile crew would send off UAV first spot target seen coordinates would recorded missile sent di rectly target rather merely fired general direction Expensive mis sile misses would thus avoided latest model SCI bird made molded foam ABS plastic compos ite materials powered selection engines main being 1 5-cu-in diesel Total weight about 16 lb pay load 8 lb Westinghouse has come up novel electric-powered UAV wingspan 11 ft 4 gross weight 15 lb payload 5 lb hand launched like large glider operator holding con ventional RC model radio transmitter TV camera nose sends images back operator UAV flies automatic pi lot controller simply sends some preselected map coordinate fairly typical way operating UAVs bird flown back landed pilot visually just like model aircraft Westinghouse UAV has endur ance 11/2 hours typically flies 1000-2000 ft powered novel alu minum electrochemical battery said give about six times much operat Left Flying Pioneer UAV its recapture net takes great skill Several Pioneer UAVs lost inexperienced controllers flew net supporting poles Right Amber endurance UAV designed stay aloft long 36 hours such missions covert photo video surveillance communications relay can reach altitudes 27000 feet still remain functional ing time standard Ni-Cds potassium hydroxide electrolyte stored dry acti vated addition water battery has aluminum anode air cathode UAVs inexpensive enough expendable important infor mation received UAV other side hill can allowed crash exigencies battlefield sit uation demand Another bird can pulled out its box needed Another sophisticated UAV clearly shows its model airplane an94 Model Aviation Israeli-US Pioneer UAV has done great deal flying US Navy Its twin boom pusher layout typical several UAV designs because affords unobstructed forward view its sensors Pioneer truck-mounted pneumatic launch system avoid long takeoffs require ment large fields relatively heavy airplanes must catapulted rocket-launched line-up Amber endurance UAV types back row smaller Gnat trainer UAVs front row Gnat trainer designed teach UAV pilots fly carry out missions Left A glow-engine-powered UAV forward-looking camera rear-facing bobbin unreeling optical fiber line deliver unjammable video data back ground controller Right close-up fiber-optic UAV along its small ground controller video screen cestry Skycyc Developmental Sci ences has twin-boom layout push er prop common arrangement leaves clear field view cameras IR sensors Skyeye R4E-50 model can car ry 175-lb payload 10 hours flight 20-ft wingspan pow ered 46-hp water-cooled rotary engine launched catapult can recov ered skid landing parachute parafoil endurance category UAVs per haps best exemplified Amber Gnat family created Leading Systems Gnat simple UAV intended trainer Amber possibly other UAVs Gnat has wingspan about 13 ft 15 ft some models en gines used 6-hp 57-cu-in Sachs weighs 55 lb Its best endurance speed 3750 knots its best endurance 5000 ft Above a Marine corporal hand-launches AeroVironment Pointer mini-UAV during troop exercises Camp Pendleton CA Above Right Marine Staff Sergeant con trolling Pointer UAV seeing exactly what UAV sees through its nosemounted televisIon camera Right Pointer air UAV has 9-ft wing span weighs 75 lb constructed Keviar-reinforced epoxy has foam-core wings t propelled Astro FlIght 15 electric motor installed top wing worlds first tilt-rotor UAV Bell Boeing Pointer have made itS lrst 111gm No vember 21 1988 first test flights UAV has outriggers additional stability will removed after few hours flight time fIrst flight involve limited ward rearward sideways hover has 107-ft span between rotor prop centers J is-is mucn aa vanced UAV wingspans 25 40 ft depending model has maxi mum endurance 35 hours 5000 ft Maximum altitude 27800 ft interesting UAVs tilt-rotor Pointer now under development nearing its first flight after extensive wind-tunnel testing Built consortium Bell Helicopter Boeing engineers Pointer model full-sized V-22 Osprey tilt-rotor has has dered Air Force Navy Marine Corps use although has yet fly tilt-rotor concept involves taking off like helicopter large three-bladed airscrews vertical position transitioning level flight tilting en gines propellers vertical hori zontal best attributes helicopter fixed-wing flight thus obtained Pointer UAV has wingspan 107 ft between prop-rotor centers 137 ft long Gross weight 600 lb de signed have 6-hr endurance 100 knots payload 100 lb Pointer will controlled RC model transmit ter its first flights Rotary-wing UAVs have major advan tage over fixed-wing counterparts need means launching catapult rockets etc hard runway Any reasonably level piece ground will helicopter types Sprite pro duced ML Aviation England scheduled US services illustrates LIIISs airpiane nas contrarotat ing rotors 5 ft 3 in diameter eliminates need tail rotor About size model airplane has spherical fuselage approximately 2-ftdiameter weighs less 40kg can carried two men Sprite pow ered two 65-hp twin-cylinder twostroke engines started elec tric drill Sprite cruises 60 knots has ceiling 8000 ft endurance two hours typically operates up 20 miles controller As UAVs need flying skills mini mized using automatic flight controllers vehicle simply steered given lo cation Three-axis motions taken care automatic pilot sophisti cated UAVs can autonomously cruise about looking targets information deciding have return base refuel beyond scope article mini-UAV close model aircraft design practice AeroVironment Pointer confused BellBoeing Pointer tilt-rotor UAV 9-ftspan 7 /2-lb glider-type UAV As tro Flight 15 electric motor mounted top wing Made Kevlar-reinforced ep oxy foam-core wings carries day light TV camera nose Reconnais sance data downlink radio signals unjammable fiber-optic link can used Nlgnt Ouration nour patrol radius 3 miles flying speeds 22 45 mph AeroVironment Pointer launched hand has simple gyroscopic autostabilizer pilot does have worry about second-by-second control sees terrain through TV camera sim ply steers about Landing accomplished bringing plane back pilot area putting deep stall Ed Though specifically stated expect about like FFpop-up-tail dethermal izer UAV descends vertically hor izontal attitude company has supplied four Pointers US Marine Corps troop evalua tion close-range category UAV AeroVironment says Marines no train ing task have put together few minutes successful first flights So rapidly UAV development expanding today meet burgeoning demands military its hobby shop origins seem modest comparison Major air frame companies like Lockheed Bell Boeing now well represented new industry Some smaller UAV de velopers reminiscent manned air craft builders Thirties Forties handful enthusiasts RC modelers brainstorming new ideas sknnk works atmosphere As military requirements grow new de signs small UAVs fit close-range 96 Model Aviation category will appear turn could lead new construction materials new con trol servos new electronics innovations will inevitably have im pact hobby Further un manned aerial vehicle gains wide public rec ognition perhaps part through civilian us age super model airplanes will help modelers long run WRAM Show/Myers Continued page 82 known lose heads rubber engine mounts have known fail automobiles full-scale aircraft know isolators work claimed definitely maintenance item ISOMounts simply plug 1A-in holes drilled firewall expand like MollyTM fasteners makes very easy stall replace periodically Davis Die sel Development PO Box 141 Milford CT 06460 Strobe-F-Light 8405 Avenue N Brook lyn NY 11236 has added ADF-II its line goodies primarily lights Scale mod els ADF-II count-down-timer-oper ated beeper sounds off 15 minutes after receiver turned forget turn off get warned careless lose plane tall corn turn off transmitter beeper will help find plane again ADF-II works PCM original ADF sometimes didnt beeps 10 hours fully charged flight pack really appreciate de vice have fly Long land NY flying sites frequently surrounded eight-foot-high marsh grass Vintage Stunt/Keville Continued page 77 after Aldrich 10 percent fuel Yeah Dixons got some go ask him Worth mentioning Tom Dixon donated case Taffinder fuel use airline trav elers Likewise Don Nix RC flier president Powermaster Products deliv ered five gallons custom-blend Stunt fuel 900 ameven though mov ing entire operation new facilities weekend needed proof truly low-keyed high-spirited gather ing look 78 Walker Cup winner Bob Whitelys face read gag score posted him Round Two would have done 01 R J fell victim practical joke two judges very relaxed Paul Walker two-time Nationals winner fifth 1988 Kiev World Champs accomplice Tom Mr Aero Gloss Warden sent dummy scoresheets tabulators along CD part act shouldve seen Bobs face read 38200 posted what obviously superior performance Panther let him suffer bit before revealing true score 53250 Yes won alrightand warned us turkeys hed judging someday soon dont know what makes everyone want tease Whitely much Maybe read Fanchers monthly col umns figure its thing dunno got boisterous alright didnt prevent running meet totally book Now gotta real careful Being married CI leaves open accusations conflict interest worse can vouch AMA common sense safety rules strictly en forced Pit boss Randy Heydon kept steady flow both circles round completed about 100 pm left remainder afternoons socializing demonstration flights just plain enjoy ment happen feel Joey crew priceless interest fair play well let others the judge Round Nostalgia Tulsas De Forrest Hill fired up Netzeband-designed Fierce Arrow after signaling ficial flight proceeded fly free-style exhibition didnt phase Judges Klapin ski Rick Loomis Open Senior win ners respectively 1967 Nats went ahead scored takeoff landing couple maneuvers just hap pened fall right sequence went like Continued page 115 June 1989 97
Edition: Model Aviation - 1989/06
Page Numbers: 91, 92, 93, 94, 95, 96, 97
RC MODEL AIRCRAFT technology ginning move big way mil itary US NATO forces expanding plans use Unmanned Aerial Vehi cles UAVs multitude uses land sea Beyond military beginnings civiiafi uses model air craft derivatives surveying border sur veillance forestry other fields Its military signifi cant new developments RC technology happening will focus article whole thing got started rael group RC modelers thought hobby skills could help countrys army during its Lebanon campaign problem solved Israeli Air Force aircraft being hit enemy surface-toair missiles SAMs spotted fight ers radar infrared IR signatures modelers prepared large about 15-ftwingspan model fitted simple cam era equipment autopilot went looking SAM sites experiment wildly successful plane could loaf about 5000 ft area SAMs known detect its camera coordi nates fed back Israeli Army person nel sent out artillery fighters destroy SAMs model planes themselves appeared invulnerable no radar signature small altitude couldnt seen heard ground No knew circling high sky silently watching movement ground transmitting images back controllers electronically next step military usage RC models took place US Navy bat tleship USS Iowa positioned off Leba non shelling shore installations Needing determine exactly huge 16-in shells falling Navy asked Israe lis help answer naturally model airplane Navy fascinated see efficiently model aircraft could watch fall shells immediately transmit data ground personnel Gunnery corrections could easily quickly made story fascinated Navy peo June 1989 91 Top A Pioneer being rocket-launched night Pioneers have used extensively aboara Battleship USS Iowa rocket launches essential Above Pointer tilt-rotor UAV first UAV using tilt-rotor technology designed take oft vertically transition level flight combining best features helicopter fixed-wing flight pie watching TV screen UAV controllers hut close surveillance car moving up Bekaa Valley Leba non cars license plate could easily read UAV recorded driver stop ping outside building entering leaving driving away totally unaware unseen audience miles away Navy enthusiastic bought several examples later develop ment Israeli UAV called Pioneer built US AM Corporation con junction Israels Mazlat Navy gan integrating fleet use difficulty fact some flights hit headlines last summer inexperienced RC pilots flew frame recapture net wreck ing Meanwhile US Marine Corps getting interested battle field reconnaissance possibilities UAVs appealing idea credited di vision commander confusion heat battle ordered model airplane brought out box launched mission see over hill around corner after fun damental reconnaissance mission Along gunnery-spotting capability wanted Navy its aircraft free balloons went war first place Marines too bought some Pio neers called RC modelers among ranks report duty learn fly US Army working its own program some time spending great deal money Aquila UAV basically flying wing pusher prop step away model aircraft practice larger heavier though made much use composite materials models also classic example what happens overenthusiastic people try too much Although Aquila designed SkyEye R4E-50 UAV unmanned aerial vehicle autonomous flight 20-TI-span bird can fly given area carry out wide range of military duties such surveillance pho tography target spotting decoy duty etc return base risk personnel SkyEye controllers located safe rear area scanning battlefield scene through eyes UAV thick action screen displays visual information other will show map coordinates ne Iacsca vigeg map amupsay enagmes inieiiigence peruonne track position ot SkyEye relate its transmitted imagery tactical situation displayed area video display shown giving controllers continuous detailed picture SkyEyes altitude flight attitude control settings heading other aspects its assigned mission Sprite twin rotor UAV built Great Britain currently undergoing Foreign Weapons Evaluation tests aboard US mili tary vessels stationed Gulf Mexico built Lockheed itself perfectly satisfactory airplane problems mission design testing led Armys deci sion go production Thats history things stand today US NATO member gov ernments see tremendous potential un manned vehicles kinds taking over too dangerous men go unmanned vehicle will job just well far expensive manned vehicle will save lives expensive equipment Beyond scope article robotic miniature scout submarines tanks scout cars etc fact un manned aerial vehicle farthest along development Defense Department plans spend 21 billion dollars UAV procurement re search development over five-year period starting 1990 1989 bill alone will over 91 million dollars will four categories UAVs close-range short-range medium-range endur ance medium-range UAVs beyond interest because will large heavy very fast able fly out 700km launch point perhaps close-range endurance categories closest model aircraft technology close-range UAVs will required have range up 30km endurance UAVs will have able stay aloft 36-40 hours simply doing lazy eights up keeping eye things jobs will visual elec tronic surveillance eavesdropping jam ming enemy signals radars com munications relaying among other tasks Lets have look some small UAVs have developed ones look like model aircraft created Naval Air Develop ment Center Warminster PA Robin kit based Curtiss Robin late 1920s UAV version has strengthened Cameras have hung exhaust extension added prevent oil being blown over lens can carry 25-lb payload 50 mph flight duration about two hours Goodquality pictures have obtained craft 20 miles away airplane well target tracking sensor controlled pulse code modulation system Naval Air Development Centers own design called Loon pusher model ca pable carrying 10-lb payload 100 mph Centers reason doing perhaps overriding reasons June 1989 93 typical net capture Armys Aquila UAV end its mission enters net safely decelerated extending-lines attached kinetic energy absorption devices Naval Air Development Centers Robin UAV modified standard Robin kit fitted two surveillance cameras mounted under fuselage under wing Note exhaust extension installed keep oil away cameras lenses Loon sleek looking UAV designed Naval Air Development Center airplane capable carrying 10-pound payload Its assigned target area 100 miles per hour having UAVs cost entire UAV system several birds ground control station support equipment may tenth less manned strike/reconnaissance aircraft Another small UAV has developed SCI Technology Inc Huntsville AL make use fiber optic technology 80-in-wingspan model powered glow plug engine intended fly away its controller unreeling length opti cal fiber bobbin rear fu selage signal models TV camera transmitted via optical fiber ground controller sees image plane himself sees what camera sees course general principle UAVs advantage fiber optics signal cannot jammed enemy could radio signal SCI has proposed UAV Army miniature spotter its fiber optic guided missile ground-to-air missile crew would send off UAV first spot target seen coordinates would recorded missile sent di rectly target rather merely fired general direction Expensive mis sile misses would thus avoided latest model SCI bird made molded foam ABS plastic compos ite materials powered selection engines main being 1 5-cu-in diesel Total weight about 16 lb pay load 8 lb Westinghouse has come up novel electric-powered UAV wingspan 11 ft 4 gross weight 15 lb payload 5 lb hand launched like large glider operator holding con ventional RC model radio transmitter TV camera nose sends images back operator UAV flies automatic pi lot controller simply sends some preselected map coordinate fairly typical way operating UAVs bird flown back landed pilot visually just like model aircraft Westinghouse UAV has endur ance 11/2 hours typically flies 1000-2000 ft powered novel alu minum electrochemical battery said give about six times much operat Left Flying Pioneer UAV its recapture net takes great skill Several Pioneer UAVs lost inexperienced controllers flew net supporting poles Right Amber endurance UAV designed stay aloft long 36 hours such missions covert photo video surveillance communications relay can reach altitudes 27000 feet still remain functional ing time standard Ni-Cds potassium hydroxide electrolyte stored dry acti vated addition water battery has aluminum anode air cathode UAVs inexpensive enough expendable important infor mation received UAV other side hill can allowed crash exigencies battlefield sit uation demand Another bird can pulled out its box needed Another sophisticated UAV clearly shows its model airplane an94 Model Aviation Israeli-US Pioneer UAV has done great deal flying US Navy Its twin boom pusher layout typical several UAV designs because affords unobstructed forward view its sensors Pioneer truck-mounted pneumatic launch system avoid long takeoffs require ment large fields relatively heavy airplanes must catapulted rocket-launched line-up Amber endurance UAV types back row smaller Gnat trainer UAVs front row Gnat trainer designed teach UAV pilots fly carry out missions Left A glow-engine-powered UAV forward-looking camera rear-facing bobbin unreeling optical fiber line deliver unjammable video data back ground controller Right close-up fiber-optic UAV along its small ground controller video screen cestry Skycyc Developmental Sci ences has twin-boom layout push er prop common arrangement leaves clear field view cameras IR sensors Skyeye R4E-50 model can car ry 175-lb payload 10 hours flight 20-ft wingspan pow ered 46-hp water-cooled rotary engine launched catapult can recov ered skid landing parachute parafoil endurance category UAVs per haps best exemplified Amber Gnat family created Leading Systems Gnat simple UAV intended trainer Amber possibly other UAVs Gnat has wingspan about 13 ft 15 ft some models en gines used 6-hp 57-cu-in Sachs weighs 55 lb Its best endurance speed 3750 knots its best endurance 5000 ft Above a Marine corporal hand-launches AeroVironment Pointer mini-UAV during troop exercises Camp Pendleton CA Above Right Marine Staff Sergeant con trolling Pointer UAV seeing exactly what UAV sees through its nosemounted televisIon camera Right Pointer air UAV has 9-ft wing span weighs 75 lb constructed Keviar-reinforced epoxy has foam-core wings t propelled Astro FlIght 15 electric motor installed top wing worlds first tilt-rotor UAV Bell Boeing Pointer have made itS lrst 111gm No vember 21 1988 first test flights UAV has outriggers additional stability will removed after few hours flight time fIrst flight involve limited ward rearward sideways hover has 107-ft span between rotor prop centers J is-is mucn aa vanced UAV wingspans 25 40 ft depending model has maxi mum endurance 35 hours 5000 ft Maximum altitude 27800 ft interesting UAVs tilt-rotor Pointer now under development nearing its first flight after extensive wind-tunnel testing Built consortium Bell Helicopter Boeing engineers Pointer model full-sized V-22 Osprey tilt-rotor has has dered Air Force Navy Marine Corps use although has yet fly tilt-rotor concept involves taking off like helicopter large three-bladed airscrews vertical position transitioning level flight tilting en gines propellers vertical hori zontal best attributes helicopter fixed-wing flight thus obtained Pointer UAV has wingspan 107 ft between prop-rotor centers 137 ft long Gross weight 600 lb de signed have 6-hr endurance 100 knots payload 100 lb Pointer will controlled RC model transmit ter its first flights Rotary-wing UAVs have major advan tage over fixed-wing counterparts need means launching catapult rockets etc hard runway Any reasonably level piece ground will helicopter types Sprite pro duced ML Aviation England scheduled US services illustrates LIIISs airpiane nas contrarotat ing rotors 5 ft 3 in diameter eliminates need tail rotor About size model airplane has spherical fuselage approximately 2-ftdiameter weighs less 40kg can carried two men Sprite pow ered two 65-hp twin-cylinder twostroke engines started elec tric drill Sprite cruises 60 knots has ceiling 8000 ft endurance two hours typically operates up 20 miles controller As UAVs need flying skills mini mized using automatic flight controllers vehicle simply steered given lo cation Three-axis motions taken care automatic pilot sophisti cated UAVs can autonomously cruise about looking targets information deciding have return base refuel beyond scope article mini-UAV close model aircraft design practice AeroVironment Pointer confused BellBoeing Pointer tilt-rotor UAV 9-ftspan 7 /2-lb glider-type UAV As tro Flight 15 electric motor mounted top wing Made Kevlar-reinforced ep oxy foam-core wings carries day light TV camera nose Reconnais sance data downlink radio signals unjammable fiber-optic link can used Nlgnt Ouration nour patrol radius 3 miles flying speeds 22 45 mph AeroVironment Pointer launched hand has simple gyroscopic autostabilizer pilot does have worry about second-by-second control sees terrain through TV camera sim ply steers about Landing accomplished bringing plane back pilot area putting deep stall Ed Though specifically stated expect about like FFpop-up-tail dethermal izer UAV descends vertically hor izontal attitude company has supplied four Pointers US Marine Corps troop evalua tion close-range category UAV AeroVironment says Marines no train ing task have put together few minutes successful first flights So rapidly UAV development expanding today meet burgeoning demands military its hobby shop origins seem modest comparison Major air frame companies like Lockheed Bell Boeing now well represented new industry Some smaller UAV de velopers reminiscent manned air craft builders Thirties Forties handful enthusiasts RC modelers brainstorming new ideas sknnk works atmosphere As military requirements grow new de signs small UAVs fit close-range 96 Model Aviation category will appear turn could lead new construction materials new con trol servos new electronics innovations will inevitably have im pact hobby Further un manned aerial vehicle gains wide public rec ognition perhaps part through civilian us age super model airplanes will help modelers long run WRAM Show/Myers Continued page 82 known lose heads rubber engine mounts have known fail automobiles full-scale aircraft know isolators work claimed definitely maintenance item ISOMounts simply plug 1A-in holes drilled firewall expand like MollyTM fasteners makes very easy stall replace periodically Davis Die sel Development PO Box 141 Milford CT 06460 Strobe-F-Light 8405 Avenue N Brook lyn NY 11236 has added ADF-II its line goodies primarily lights Scale mod els ADF-II count-down-timer-oper ated beeper sounds off 15 minutes after receiver turned forget turn off get warned careless lose plane tall corn turn off transmitter beeper will help find plane again ADF-II works PCM original ADF sometimes didnt beeps 10 hours fully charged flight pack really appreciate de vice have fly Long land NY flying sites frequently surrounded eight-foot-high marsh grass Vintage Stunt/Keville Continued page 77 after Aldrich 10 percent fuel Yeah Dixons got some go ask him Worth mentioning Tom Dixon donated case Taffinder fuel use airline trav elers Likewise Don Nix RC flier president Powermaster Products deliv ered five gallons custom-blend Stunt fuel 900 ameven though mov ing entire operation new facilities weekend needed proof truly low-keyed high-spirited gather ing look 78 Walker Cup winner Bob Whitelys face read gag score posted him Round Two would have done 01 R J fell victim practical joke two judges very relaxed Paul Walker two-time Nationals winner fifth 1988 Kiev World Champs accomplice Tom Mr Aero Gloss Warden sent dummy scoresheets tabulators along CD part act shouldve seen Bobs face read 38200 posted what obviously superior performance Panther let him suffer bit before revealing true score 53250 Yes won alrightand warned us turkeys hed judging someday soon dont know what makes everyone want tease Whitely much Maybe read Fanchers monthly col umns figure its thing dunno got boisterous alright didnt prevent running meet totally book Now gotta real careful Being married CI leaves open accusations conflict interest worse can vouch AMA common sense safety rules strictly en forced Pit boss Randy Heydon kept steady flow both circles round completed about 100 pm left remainder afternoons socializing demonstration flights just plain enjoy ment happen feel Joey crew priceless interest fair play well let others the judge Round Nostalgia Tulsas De Forrest Hill fired up Netzeband-designed Fierce Arrow after signaling ficial flight proceeded fly free-style exhibition didnt phase Judges Klapin ski Rick Loomis Open Senior win ners respectively 1967 Nats went ahead scored takeoff landing couple maneuvers just hap pened fall right sequence went like Continued page 115 June 1989 97
Edition: Model Aviation - 1989/06
Page Numbers: 91, 92, 93, 94, 95, 96, 97
RC MODEL AIRCRAFT technology ginning move big way mil itary US NATO forces expanding plans use Unmanned Aerial Vehi cles UAVs multitude uses land sea Beyond military beginnings civiiafi uses model air craft derivatives surveying border sur veillance forestry other fields Its military signifi cant new developments RC technology happening will focus article whole thing got started rael group RC modelers thought hobby skills could help countrys army during its Lebanon campaign problem solved Israeli Air Force aircraft being hit enemy surface-toair missiles SAMs spotted fight ers radar infrared IR signatures modelers prepared large about 15-ftwingspan model fitted simple cam era equipment autopilot went looking SAM sites experiment wildly successful plane could loaf about 5000 ft area SAMs known detect its camera coordi nates fed back Israeli Army person nel sent out artillery fighters destroy SAMs model planes themselves appeared invulnerable no radar signature small altitude couldnt seen heard ground No knew circling high sky silently watching movement ground transmitting images back controllers electronically next step military usage RC models took place US Navy bat tleship USS Iowa positioned off Leba non shelling shore installations Needing determine exactly huge 16-in shells falling Navy asked Israe lis help answer naturally model airplane Navy fascinated see efficiently model aircraft could watch fall shells immediately transmit data ground personnel Gunnery corrections could easily quickly made story fascinated Navy peo June 1989 91 Top A Pioneer being rocket-launched night Pioneers have used extensively aboara Battleship USS Iowa rocket launches essential Above Pointer tilt-rotor UAV first UAV using tilt-rotor technology designed take oft vertically transition level flight combining best features helicopter fixed-wing flight pie watching TV screen UAV controllers hut close surveillance car moving up Bekaa Valley Leba non cars license plate could easily read UAV recorded driver stop ping outside building entering leaving driving away totally unaware unseen audience miles away Navy enthusiastic bought several examples later develop ment Israeli UAV called Pioneer built US AM Corporation con junction Israels Mazlat Navy gan integrating fleet use difficulty fact some flights hit headlines last summer inexperienced RC pilots flew frame recapture net wreck ing Meanwhile US Marine Corps getting interested battle field reconnaissance possibilities UAVs appealing idea credited di vision commander confusion heat battle ordered model airplane brought out box launched mission see over hill around corner after fun damental reconnaissance mission Along gunnery-spotting capability wanted Navy its aircraft free balloons went war first place Marines too bought some Pio neers called RC modelers among ranks report duty learn fly US Army working its own program some time spending great deal money Aquila UAV basically flying wing pusher prop step away model aircraft practice larger heavier though made much use composite materials models also classic example what happens overenthusiastic people try too much Although Aquila designed SkyEye R4E-50 UAV unmanned aerial vehicle autonomous flight 20-TI-span bird can fly given area carry out wide range of military duties such surveillance pho tography target spotting decoy duty etc return base risk personnel SkyEye controllers located safe rear area scanning battlefield scene through eyes UAV thick action screen displays visual information other will show map coordinates ne Iacsca vigeg map amupsay enagmes inieiiigence peruonne track position ot SkyEye relate its transmitted imagery tactical situation displayed area video display shown giving controllers continuous detailed picture SkyEyes altitude flight attitude control settings heading other aspects its assigned mission Sprite twin rotor UAV built Great Britain currently undergoing Foreign Weapons Evaluation tests aboard US mili tary vessels stationed Gulf Mexico built Lockheed itself perfectly satisfactory airplane problems mission design testing led Armys deci sion go production Thats history things stand today US NATO member gov ernments see tremendous potential un manned vehicles kinds taking over too dangerous men go unmanned vehicle will job just well far expensive manned vehicle will save lives expensive equipment Beyond scope article robotic miniature scout submarines tanks scout cars etc fact un manned aerial vehicle farthest along development Defense Department plans spend 21 billion dollars UAV procurement re search development over five-year period starting 1990 1989 bill alone will over 91 million dollars will four categories UAVs close-range short-range medium-range endur ance medium-range UAVs beyond interest because will large heavy very fast able fly out 700km launch point perhaps close-range endurance categories closest model aircraft technology close-range UAVs will required have range up 30km endurance UAVs will have able stay aloft 36-40 hours simply doing lazy eights up keeping eye things jobs will visual elec tronic surveillance eavesdropping jam ming enemy signals radars com munications relaying among other tasks Lets have look some small UAVs have developed ones look like model aircraft created Naval Air Develop ment Center Warminster PA Robin kit based Curtiss Robin late 1920s UAV version has strengthened Cameras have hung exhaust extension added prevent oil being blown over lens can carry 25-lb payload 50 mph flight duration about two hours Goodquality pictures have obtained craft 20 miles away airplane well target tracking sensor controlled pulse code modulation system Naval Air Development Centers own design called Loon pusher model ca pable carrying 10-lb payload 100 mph Centers reason doing perhaps overriding reasons June 1989 93 typical net capture Armys Aquila UAV end its mission enters net safely decelerated extending-lines attached kinetic energy absorption devices Naval Air Development Centers Robin UAV modified standard Robin kit fitted two surveillance cameras mounted under fuselage under wing Note exhaust extension installed keep oil away cameras lenses Loon sleek looking UAV designed Naval Air Development Center airplane capable carrying 10-pound payload Its assigned target area 100 miles per hour having UAVs cost entire UAV system several birds ground control station support equipment may tenth less manned strike/reconnaissance aircraft Another small UAV has developed SCI Technology Inc Huntsville AL make use fiber optic technology 80-in-wingspan model powered glow plug engine intended fly away its controller unreeling length opti cal fiber bobbin rear fu selage signal models TV camera transmitted via optical fiber ground controller sees image plane himself sees what camera sees course general principle UAVs advantage fiber optics signal cannot jammed enemy could radio signal SCI has proposed UAV Army miniature spotter its fiber optic guided missile ground-to-air missile crew would send off UAV first spot target seen coordinates would recorded missile sent di rectly target rather merely fired general direction Expensive mis sile misses would thus avoided latest model SCI bird made molded foam ABS plastic compos ite materials powered selection engines main being 1 5-cu-in diesel Total weight about 16 lb pay load 8 lb Westinghouse has come up novel electric-powered UAV wingspan 11 ft 4 gross weight 15 lb payload 5 lb hand launched like large glider operator holding con ventional RC model radio transmitter TV camera nose sends images back operator UAV flies automatic pi lot controller simply sends some preselected map coordinate fairly typical way operating UAVs bird flown back landed pilot visually just like model aircraft Westinghouse UAV has endur ance 11/2 hours typically flies 1000-2000 ft powered novel alu minum electrochemical battery said give about six times much operat Left Flying Pioneer UAV its recapture net takes great skill Several Pioneer UAVs lost inexperienced controllers flew net supporting poles Right Amber endurance UAV designed stay aloft long 36 hours such missions covert photo video surveillance communications relay can reach altitudes 27000 feet still remain functional ing time standard Ni-Cds potassium hydroxide electrolyte stored dry acti vated addition water battery has aluminum anode air cathode UAVs inexpensive enough expendable important infor mation received UAV other side hill can allowed crash exigencies battlefield sit uation demand Another bird can pulled out its box needed Another sophisticated UAV clearly shows its model airplane an94 Model Aviation Israeli-US Pioneer UAV has done great deal flying US Navy Its twin boom pusher layout typical several UAV designs because affords unobstructed forward view its sensors Pioneer truck-mounted pneumatic launch system avoid long takeoffs require ment large fields relatively heavy airplanes must catapulted rocket-launched line-up Amber endurance UAV types back row smaller Gnat trainer UAVs front row Gnat trainer designed teach UAV pilots fly carry out missions Left A glow-engine-powered UAV forward-looking camera rear-facing bobbin unreeling optical fiber line deliver unjammable video data back ground controller Right close-up fiber-optic UAV along its small ground controller video screen cestry Skycyc Developmental Sci ences has twin-boom layout push er prop common arrangement leaves clear field view cameras IR sensors Skyeye R4E-50 model can car ry 175-lb payload 10 hours flight 20-ft wingspan pow ered 46-hp water-cooled rotary engine launched catapult can recov ered skid landing parachute parafoil endurance category UAVs per haps best exemplified Amber Gnat family created Leading Systems Gnat simple UAV intended trainer Amber possibly other UAVs Gnat has wingspan about 13 ft 15 ft some models en gines used 6-hp 57-cu-in Sachs weighs 55 lb Its best endurance speed 3750 knots its best endurance 5000 ft Above a Marine corporal hand-launches AeroVironment Pointer mini-UAV during troop exercises Camp Pendleton CA Above Right Marine Staff Sergeant con trolling Pointer UAV seeing exactly what UAV sees through its nosemounted televisIon camera Right Pointer air UAV has 9-ft wing span weighs 75 lb constructed Keviar-reinforced epoxy has foam-core wings t propelled Astro FlIght 15 electric motor installed top wing worlds first tilt-rotor UAV Bell Boeing Pointer have made itS lrst 111gm No vember 21 1988 first test flights UAV has outriggers additional stability will removed after few hours flight time fIrst flight involve limited ward rearward sideways hover has 107-ft span between rotor prop centers J is-is mucn aa vanced UAV wingspans 25 40 ft depending model has maxi mum endurance 35 hours 5000 ft Maximum altitude 27800 ft interesting UAVs tilt-rotor Pointer now under development nearing its first flight after extensive wind-tunnel testing Built consortium Bell Helicopter Boeing engineers Pointer model full-sized V-22 Osprey tilt-rotor has has dered Air Force Navy Marine Corps use although has yet fly tilt-rotor concept involves taking off like helicopter large three-bladed airscrews vertical position transitioning level flight tilting en gines propellers vertical hori zontal best attributes helicopter fixed-wing flight thus obtained Pointer UAV has wingspan 107 ft between prop-rotor centers 137 ft long Gross weight 600 lb de signed have 6-hr endurance 100 knots payload 100 lb Pointer will controlled RC model transmit ter its first flights Rotary-wing UAVs have major advan tage over fixed-wing counterparts need means launching catapult rockets etc hard runway Any reasonably level piece ground will helicopter types Sprite pro duced ML Aviation England scheduled US services illustrates LIIISs airpiane nas contrarotat ing rotors 5 ft 3 in diameter eliminates need tail rotor About size model airplane has spherical fuselage approximately 2-ftdiameter weighs less 40kg can carried two men Sprite pow ered two 65-hp twin-cylinder twostroke engines started elec tric drill Sprite cruises 60 knots has ceiling 8000 ft endurance two hours typically operates up 20 miles controller As UAVs need flying skills mini mized using automatic flight controllers vehicle simply steered given lo cation Three-axis motions taken care automatic pilot sophisti cated UAVs can autonomously cruise about looking targets information deciding have return base refuel beyond scope article mini-UAV close model aircraft design practice AeroVironment Pointer confused BellBoeing Pointer tilt-rotor UAV 9-ftspan 7 /2-lb glider-type UAV As tro Flight 15 electric motor mounted top wing Made Kevlar-reinforced ep oxy foam-core wings carries day light TV camera nose Reconnais sance data downlink radio signals unjammable fiber-optic link can used Nlgnt Ouration nour patrol radius 3 miles flying speeds 22 45 mph AeroVironment Pointer launched hand has simple gyroscopic autostabilizer pilot does have worry about second-by-second control sees terrain through TV camera sim ply steers about Landing accomplished bringing plane back pilot area putting deep stall Ed Though specifically stated expect about like FFpop-up-tail dethermal izer UAV descends vertically hor izontal attitude company has supplied four Pointers US Marine Corps troop evalua tion close-range category UAV AeroVironment says Marines no train ing task have put together few minutes successful first flights So rapidly UAV development expanding today meet burgeoning demands military its hobby shop origins seem modest comparison Major air frame companies like Lockheed Bell Boeing now well represented new industry Some smaller UAV de velopers reminiscent manned air craft builders Thirties Forties handful enthusiasts RC modelers brainstorming new ideas sknnk works atmosphere As military requirements grow new de signs small UAVs fit close-range 96 Model Aviation category will appear turn could lead new construction materials new con trol servos new electronics innovations will inevitably have im pact hobby Further un manned aerial vehicle gains wide public rec ognition perhaps part through civilian us age super model airplanes will help modelers long run WRAM Show/Myers Continued page 82 known lose heads rubber engine mounts have known fail automobiles full-scale aircraft know isolators work claimed definitely maintenance item ISOMounts simply plug 1A-in holes drilled firewall expand like MollyTM fasteners makes very easy stall replace periodically Davis Die sel Development PO Box 141 Milford CT 06460 Strobe-F-Light 8405 Avenue N Brook lyn NY 11236 has added ADF-II its line goodies primarily lights Scale mod els ADF-II count-down-timer-oper ated beeper sounds off 15 minutes after receiver turned forget turn off get warned careless lose plane tall corn turn off transmitter beeper will help find plane again ADF-II works PCM original ADF sometimes didnt beeps 10 hours fully charged flight pack really appreciate de vice have fly Long land NY flying sites frequently surrounded eight-foot-high marsh grass Vintage Stunt/Keville Continued page 77 after Aldrich 10 percent fuel Yeah Dixons got some go ask him Worth mentioning Tom Dixon donated case Taffinder fuel use airline trav elers Likewise Don Nix RC flier president Powermaster Products deliv ered five gallons custom-blend Stunt fuel 900 ameven though mov ing entire operation new facilities weekend needed proof truly low-keyed high-spirited gather ing look 78 Walker Cup winner Bob Whitelys face read gag score posted him Round Two would have done 01 R J fell victim practical joke two judges very relaxed Paul Walker two-time Nationals winner fifth 1988 Kiev World Champs accomplice Tom Mr Aero Gloss Warden sent dummy scoresheets tabulators along CD part act shouldve seen Bobs face read 38200 posted what obviously superior performance Panther let him suffer bit before revealing true score 53250 Yes won alrightand warned us turkeys hed judging someday soon dont know what makes everyone want tease Whitely much Maybe read Fanchers monthly col umns figure its thing dunno got boisterous alright didnt prevent running meet totally book Now gotta real careful Being married CI leaves open accusations conflict interest worse can vouch AMA common sense safety rules strictly en forced Pit boss Randy Heydon kept steady flow both circles round completed about 100 pm left remainder afternoons socializing demonstration flights just plain enjoy ment happen feel Joey crew priceless interest fair play well let others the judge Round Nostalgia Tulsas De Forrest Hill fired up Netzeband-designed Fierce Arrow after signaling ficial flight proceeded fly free-style exhibition didnt phase Judges Klapin ski Rick Loomis Open Senior win ners respectively 1967 Nats went ahead scored takeoff landing couple maneuvers just hap pened fall right sequence went like Continued page 115 June 1989 97
Edition: Model Aviation - 1989/06
Page Numbers: 91, 92, 93, 94, 95, 96, 97
RC MODEL AIRCRAFT technology ginning move big way mil itary US NATO forces expanding plans use Unmanned Aerial Vehi cles UAVs multitude uses land sea Beyond military beginnings civiiafi uses model air craft derivatives surveying border sur veillance forestry other fields Its military signifi cant new developments RC technology happening will focus article whole thing got started rael group RC modelers thought hobby skills could help countrys army during its Lebanon campaign problem solved Israeli Air Force aircraft being hit enemy surface-toair missiles SAMs spotted fight ers radar infrared IR signatures modelers prepared large about 15-ftwingspan model fitted simple cam era equipment autopilot went looking SAM sites experiment wildly successful plane could loaf about 5000 ft area SAMs known detect its camera coordi nates fed back Israeli Army person nel sent out artillery fighters destroy SAMs model planes themselves appeared invulnerable no radar signature small altitude couldnt seen heard ground No knew circling high sky silently watching movement ground transmitting images back controllers electronically next step military usage RC models took place US Navy bat tleship USS Iowa positioned off Leba non shelling shore installations Needing determine exactly huge 16-in shells falling Navy asked Israe lis help answer naturally model airplane Navy fascinated see efficiently model aircraft could watch fall shells immediately transmit data ground personnel Gunnery corrections could easily quickly made story fascinated Navy peo June 1989 91 Top A Pioneer being rocket-launched night Pioneers have used extensively aboara Battleship USS Iowa rocket launches essential Above Pointer tilt-rotor UAV first UAV using tilt-rotor technology designed take oft vertically transition level flight combining best features helicopter fixed-wing flight pie watching TV screen UAV controllers hut close surveillance car moving up Bekaa Valley Leba non cars license plate could easily read UAV recorded driver stop ping outside building entering leaving driving away totally unaware unseen audience miles away Navy enthusiastic bought several examples later develop ment Israeli UAV called Pioneer built US AM Corporation con junction Israels Mazlat Navy gan integrating fleet use difficulty fact some flights hit headlines last summer inexperienced RC pilots flew frame recapture net wreck ing Meanwhile US Marine Corps getting interested battle field reconnaissance possibilities UAVs appealing idea credited di vision commander confusion heat battle ordered model airplane brought out box launched mission see over hill around corner after fun damental reconnaissance mission Along gunnery-spotting capability wanted Navy its aircraft free balloons went war first place Marines too bought some Pio neers called RC modelers among ranks report duty learn fly US Army working its own program some time spending great deal money Aquila UAV basically flying wing pusher prop step away model aircraft practice larger heavier though made much use composite materials models also classic example what happens overenthusiastic people try too much Although Aquila designed SkyEye R4E-50 UAV unmanned aerial vehicle autonomous flight 20-TI-span bird can fly given area carry out wide range of military duties such surveillance pho tography target spotting decoy duty etc return base risk personnel SkyEye controllers located safe rear area scanning battlefield scene through eyes UAV thick action screen displays visual information other will show map coordinates ne Iacsca vigeg map amupsay enagmes inieiiigence peruonne track position ot SkyEye relate its transmitted imagery tactical situation displayed area video display shown giving controllers continuous detailed picture SkyEyes altitude flight attitude control settings heading other aspects its assigned mission Sprite twin rotor UAV built Great Britain currently undergoing Foreign Weapons Evaluation tests aboard US mili tary vessels stationed Gulf Mexico built Lockheed itself perfectly satisfactory airplane problems mission design testing led Armys deci sion go production Thats history things stand today US NATO member gov ernments see tremendous potential un manned vehicles kinds taking over too dangerous men go unmanned vehicle will job just well far expensive manned vehicle will save lives expensive equipment Beyond scope article robotic miniature scout submarines tanks scout cars etc fact un manned aerial vehicle farthest along development Defense Department plans spend 21 billion dollars UAV procurement re search development over five-year period starting 1990 1989 bill alone will over 91 million dollars will four categories UAVs close-range short-range medium-range endur ance medium-range UAVs beyond interest because will large heavy very fast able fly out 700km launch point perhaps close-range endurance categories closest model aircraft technology close-range UAVs will required have range up 30km endurance UAVs will have able stay aloft 36-40 hours simply doing lazy eights up keeping eye things jobs will visual elec tronic surveillance eavesdropping jam ming enemy signals radars com munications relaying among other tasks Lets have look some small UAVs have developed ones look like model aircraft created Naval Air Develop ment Center Warminster PA Robin kit based Curtiss Robin late 1920s UAV version has strengthened Cameras have hung exhaust extension added prevent oil being blown over lens can carry 25-lb payload 50 mph flight duration about two hours Goodquality pictures have obtained craft 20 miles away airplane well target tracking sensor controlled pulse code modulation system Naval Air Development Centers own design called Loon pusher model ca pable carrying 10-lb payload 100 mph Centers reason doing perhaps overriding reasons June 1989 93 typical net capture Armys Aquila UAV end its mission enters net safely decelerated extending-lines attached kinetic energy absorption devices Naval Air Development Centers Robin UAV modified standard Robin kit fitted two surveillance cameras mounted under fuselage under wing Note exhaust extension installed keep oil away cameras lenses Loon sleek looking UAV designed Naval Air Development Center airplane capable carrying 10-pound payload Its assigned target area 100 miles per hour having UAVs cost entire UAV system several birds ground control station support equipment may tenth less manned strike/reconnaissance aircraft Another small UAV has developed SCI Technology Inc Huntsville AL make use fiber optic technology 80-in-wingspan model powered glow plug engine intended fly away its controller unreeling length opti cal fiber bobbin rear fu selage signal models TV camera transmitted via optical fiber ground controller sees image plane himself sees what camera sees course general principle UAVs advantage fiber optics signal cannot jammed enemy could radio signal SCI has proposed UAV Army miniature spotter its fiber optic guided missile ground-to-air missile crew would send off UAV first spot target seen coordinates would recorded missile sent di rectly target rather merely fired general direction Expensive mis sile misses would thus avoided latest model SCI bird made molded foam ABS plastic compos ite materials powered selection engines main being 1 5-cu-in diesel Total weight about 16 lb pay load 8 lb Westinghouse has come up novel electric-powered UAV wingspan 11 ft 4 gross weight 15 lb payload 5 lb hand launched like large glider operator holding con ventional RC model radio transmitter TV camera nose sends images back operator UAV flies automatic pi lot controller simply sends some preselected map coordinate fairly typical way operating UAVs bird flown back landed pilot visually just like model aircraft Westinghouse UAV has endur ance 11/2 hours typically flies 1000-2000 ft powered novel alu minum electrochemical battery said give about six times much operat Left Flying Pioneer UAV its recapture net takes great skill Several Pioneer UAVs lost inexperienced controllers flew net supporting poles Right Amber endurance UAV designed stay aloft long 36 hours such missions covert photo video surveillance communications relay can reach altitudes 27000 feet still remain functional ing time standard Ni-Cds potassium hydroxide electrolyte stored dry acti vated addition water battery has aluminum anode air cathode UAVs inexpensive enough expendable important infor mation received UAV other side hill can allowed crash exigencies battlefield sit uation demand Another bird can pulled out its box needed Another sophisticated UAV clearly shows its model airplane an94 Model Aviation Israeli-US Pioneer UAV has done great deal flying US Navy Its twin boom pusher layout typical several UAV designs because affords unobstructed forward view its sensors Pioneer truck-mounted pneumatic launch system avoid long takeoffs require ment large fields relatively heavy airplanes must catapulted rocket-launched line-up Amber endurance UAV types back row smaller Gnat trainer UAVs front row Gnat trainer designed teach UAV pilots fly carry out missions Left A glow-engine-powered UAV forward-looking camera rear-facing bobbin unreeling optical fiber line deliver unjammable video data back ground controller Right close-up fiber-optic UAV along its small ground controller video screen cestry Skycyc Developmental Sci ences has twin-boom layout push er prop common arrangement leaves clear field view cameras IR sensors Skyeye R4E-50 model can car ry 175-lb payload 10 hours flight 20-ft wingspan pow ered 46-hp water-cooled rotary engine launched catapult can recov ered skid landing parachute parafoil endurance category UAVs per haps best exemplified Amber Gnat family created Leading Systems Gnat simple UAV intended trainer Amber possibly other UAVs Gnat has wingspan about 13 ft 15 ft some models en gines used 6-hp 57-cu-in Sachs weighs 55 lb Its best endurance speed 3750 knots its best endurance 5000 ft Above a Marine corporal hand-launches AeroVironment Pointer mini-UAV during troop exercises Camp Pendleton CA Above Right Marine Staff Sergeant con trolling Pointer UAV seeing exactly what UAV sees through its nosemounted televisIon camera Right Pointer air UAV has 9-ft wing span weighs 75 lb constructed Keviar-reinforced epoxy has foam-core wings t propelled Astro FlIght 15 electric motor installed top wing worlds first tilt-rotor UAV Bell Boeing Pointer have made itS lrst 111gm No vember 21 1988 first test flights UAV has outriggers additional stability will removed after few hours flight time fIrst flight involve limited ward rearward sideways hover has 107-ft span between rotor prop centers J is-is mucn aa vanced UAV wingspans 25 40 ft depending model has maxi mum endurance 35 hours 5000 ft Maximum altitude 27800 ft interesting UAVs tilt-rotor Pointer now under development nearing its first flight after extensive wind-tunnel testing Built consortium Bell Helicopter Boeing engineers Pointer model full-sized V-22 Osprey tilt-rotor has has dered Air Force Navy Marine Corps use although has yet fly tilt-rotor concept involves taking off like helicopter large three-bladed airscrews vertical position transitioning level flight tilting en gines propellers vertical hori zontal best attributes helicopter fixed-wing flight thus obtained Pointer UAV has wingspan 107 ft between prop-rotor centers 137 ft long Gross weight 600 lb de signed have 6-hr endurance 100 knots payload 100 lb Pointer will controlled RC model transmit ter its first flights Rotary-wing UAVs have major advan tage over fixed-wing counterparts need means launching catapult rockets etc hard runway Any reasonably level piece ground will helicopter types Sprite pro duced ML Aviation England scheduled US services illustrates LIIISs airpiane nas contrarotat ing rotors 5 ft 3 in diameter eliminates need tail rotor About size model airplane has spherical fuselage approximately 2-ftdiameter weighs less 40kg can carried two men Sprite pow ered two 65-hp twin-cylinder twostroke engines started elec tric drill Sprite cruises 60 knots has ceiling 8000 ft endurance two hours typically operates up 20 miles controller As UAVs need flying skills mini mized using automatic flight controllers vehicle simply steered given lo cation Three-axis motions taken care automatic pilot sophisti cated UAVs can autonomously cruise about looking targets information deciding have return base refuel beyond scope article mini-UAV close model aircraft design practice AeroVironment Pointer confused BellBoeing Pointer tilt-rotor UAV 9-ftspan 7 /2-lb glider-type UAV As tro Flight 15 electric motor mounted top wing Made Kevlar-reinforced ep oxy foam-core wings carries day light TV camera nose Reconnais sance data downlink radio signals unjammable fiber-optic link can used Nlgnt Ouration nour patrol radius 3 miles flying speeds 22 45 mph AeroVironment Pointer launched hand has simple gyroscopic autostabilizer pilot does have worry about second-by-second control sees terrain through TV camera sim ply steers about Landing accomplished bringing plane back pilot area putting deep stall Ed Though specifically stated expect about like FFpop-up-tail dethermal izer UAV descends vertically hor izontal attitude company has supplied four Pointers US Marine Corps troop evalua tion close-range category UAV AeroVironment says Marines no train ing task have put together few minutes successful first flights So rapidly UAV development expanding today meet burgeoning demands military its hobby shop origins seem modest comparison Major air frame companies like Lockheed Bell Boeing now well represented new industry Some smaller UAV de velopers reminiscent manned air craft builders Thirties Forties handful enthusiasts RC modelers brainstorming new ideas sknnk works atmosphere As military requirements grow new de signs small UAVs fit close-range 96 Model Aviation category will appear turn could lead new construction materials new con trol servos new electronics innovations will inevitably have im pact hobby Further un manned aerial vehicle gains wide public rec ognition perhaps part through civilian us age super model airplanes will help modelers long run WRAM Show/Myers Continued page 82 known lose heads rubber engine mounts have known fail automobiles full-scale aircraft know isolators work claimed definitely maintenance item ISOMounts simply plug 1A-in holes drilled firewall expand like MollyTM fasteners makes very easy stall replace periodically Davis Die sel Development PO Box 141 Milford CT 06460 Strobe-F-Light 8405 Avenue N Brook lyn NY 11236 has added ADF-II its line goodies primarily lights Scale mod els ADF-II count-down-timer-oper ated beeper sounds off 15 minutes after receiver turned forget turn off get warned careless lose plane tall corn turn off transmitter beeper will help find plane again ADF-II works PCM original ADF sometimes didnt beeps 10 hours fully charged flight pack really appreciate de vice have fly Long land NY flying sites frequently surrounded eight-foot-high marsh grass Vintage Stunt/Keville Continued page 77 after Aldrich 10 percent fuel Yeah Dixons got some go ask him Worth mentioning Tom Dixon donated case Taffinder fuel use airline trav elers Likewise Don Nix RC flier president Powermaster Products deliv ered five gallons custom-blend Stunt fuel 900 ameven though mov ing entire operation new facilities weekend needed proof truly low-keyed high-spirited gather ing look 78 Walker Cup winner Bob Whitelys face read gag score posted him Round Two would have done 01 R J fell victim practical joke two judges very relaxed Paul Walker two-time Nationals winner fifth 1988 Kiev World Champs accomplice Tom Mr Aero Gloss Warden sent dummy scoresheets tabulators along CD part act shouldve seen Bobs face read 38200 posted what obviously superior performance Panther let him suffer bit before revealing true score 53250 Yes won alrightand warned us turkeys hed judging someday soon dont know what makes everyone want tease Whitely much Maybe read Fanchers monthly col umns figure its thing dunno got boisterous alright didnt prevent running meet totally book Now gotta real careful Being married CI leaves open accusations conflict interest worse can vouch AMA common sense safety rules strictly en forced Pit boss Randy Heydon kept steady flow both circles round completed about 100 pm left remainder afternoons socializing demonstration flights just plain enjoy ment happen feel Joey crew priceless interest fair play well let others the judge Round Nostalgia Tulsas De Forrest Hill fired up Netzeband-designed Fierce Arrow after signaling ficial flight proceeded fly free-style exhibition didnt phase Judges Klapin ski Rick Loomis Open Senior win ners respectively 1967 Nats went ahead scored takeoff landing couple maneuvers just hap pened fall right sequence went like Continued page 115 June 1989 97
Edition: Model Aviation - 1989/06
Page Numbers: 91, 92, 93, 94, 95, 96, 97
RC MODEL AIRCRAFT technology ginning move big way mil itary US NATO forces expanding plans use Unmanned Aerial Vehi cles UAVs multitude uses land sea Beyond military beginnings civiiafi uses model air craft derivatives surveying border sur veillance forestry other fields Its military signifi cant new developments RC technology happening will focus article whole thing got started rael group RC modelers thought hobby skills could help countrys army during its Lebanon campaign problem solved Israeli Air Force aircraft being hit enemy surface-toair missiles SAMs spotted fight ers radar infrared IR signatures modelers prepared large about 15-ftwingspan model fitted simple cam era equipment autopilot went looking SAM sites experiment wildly successful plane could loaf about 5000 ft area SAMs known detect its camera coordi nates fed back Israeli Army person nel sent out artillery fighters destroy SAMs model planes themselves appeared invulnerable no radar signature small altitude couldnt seen heard ground No knew circling high sky silently watching movement ground transmitting images back controllers electronically next step military usage RC models took place US Navy bat tleship USS Iowa positioned off Leba non shelling shore installations Needing determine exactly huge 16-in shells falling Navy asked Israe lis help answer naturally model airplane Navy fascinated see efficiently model aircraft could watch fall shells immediately transmit data ground personnel Gunnery corrections could easily quickly made story fascinated Navy peo June 1989 91 Top A Pioneer being rocket-launched night Pioneers have used extensively aboara Battleship USS Iowa rocket launches essential Above Pointer tilt-rotor UAV first UAV using tilt-rotor technology designed take oft vertically transition level flight combining best features helicopter fixed-wing flight pie watching TV screen UAV controllers hut close surveillance car moving up Bekaa Valley Leba non cars license plate could easily read UAV recorded driver stop ping outside building entering leaving driving away totally unaware unseen audience miles away Navy enthusiastic bought several examples later develop ment Israeli UAV called Pioneer built US AM Corporation con junction Israels Mazlat Navy gan integrating fleet use difficulty fact some flights hit headlines last summer inexperienced RC pilots flew frame recapture net wreck ing Meanwhile US Marine Corps getting interested battle field reconnaissance possibilities UAVs appealing idea credited di vision commander confusion heat battle ordered model airplane brought out box launched mission see over hill around corner after fun damental reconnaissance mission Along gunnery-spotting capability wanted Navy its aircraft free balloons went war first place Marines too bought some Pio neers called RC modelers among ranks report duty learn fly US Army working its own program some time spending great deal money Aquila UAV basically flying wing pusher prop step away model aircraft practice larger heavier though made much use composite materials models also classic example what happens overenthusiastic people try too much Although Aquila designed SkyEye R4E-50 UAV unmanned aerial vehicle autonomous flight 20-TI-span bird can fly given area carry out wide range of military duties such surveillance pho tography target spotting decoy duty etc return base risk personnel SkyEye controllers located safe rear area scanning battlefield scene through eyes UAV thick action screen displays visual information other will show map coordinates ne Iacsca vigeg map amupsay enagmes inieiiigence peruonne track position ot SkyEye relate its transmitted imagery tactical situation displayed area video display shown giving controllers continuous detailed picture SkyEyes altitude flight attitude control settings heading other aspects its assigned mission Sprite twin rotor UAV built Great Britain currently undergoing Foreign Weapons Evaluation tests aboard US mili tary vessels stationed Gulf Mexico built Lockheed itself perfectly satisfactory airplane problems mission design testing led Armys deci sion go production Thats history things stand today US NATO member gov ernments see tremendous potential un manned vehicles kinds taking over too dangerous men go unmanned vehicle will job just well far expensive manned vehicle will save lives expensive equipment Beyond scope article robotic miniature scout submarines tanks scout cars etc fact un manned aerial vehicle farthest along development Defense Department plans spend 21 billion dollars UAV procurement re search development over five-year period starting 1990 1989 bill alone will over 91 million dollars will four categories UAVs close-range short-range medium-range endur ance medium-range UAVs beyond interest because will large heavy very fast able fly out 700km launch point perhaps close-range endurance categories closest model aircraft technology close-range UAVs will required have range up 30km endurance UAVs will have able stay aloft 36-40 hours simply doing lazy eights up keeping eye things jobs will visual elec tronic surveillance eavesdropping jam ming enemy signals radars com munications relaying among other tasks Lets have look some small UAVs have developed ones look like model aircraft created Naval Air Develop ment Center Warminster PA Robin kit based Curtiss Robin late 1920s UAV version has strengthened Cameras have hung exhaust extension added prevent oil being blown over lens can carry 25-lb payload 50 mph flight duration about two hours Goodquality pictures have obtained craft 20 miles away airplane well target tracking sensor controlled pulse code modulation system Naval Air Development Centers own design called Loon pusher model ca pable carrying 10-lb payload 100 mph Centers reason doing perhaps overriding reasons June 1989 93 typical net capture Armys Aquila UAV end its mission enters net safely decelerated extending-lines attached kinetic energy absorption devices Naval Air Development Centers Robin UAV modified standard Robin kit fitted two surveillance cameras mounted under fuselage under wing Note exhaust extension installed keep oil away cameras lenses Loon sleek looking UAV designed Naval Air Development Center airplane capable carrying 10-pound payload Its assigned target area 100 miles per hour having UAVs cost entire UAV system several birds ground control station support equipment may tenth less manned strike/reconnaissance aircraft Another small UAV has developed SCI Technology Inc Huntsville AL make use fiber optic technology 80-in-wingspan model powered glow plug engine intended fly away its controller unreeling length opti cal fiber bobbin rear fu selage signal models TV camera transmitted via optical fiber ground controller sees image plane himself sees what camera sees course general principle UAVs advantage fiber optics signal cannot jammed enemy could radio signal SCI has proposed UAV Army miniature spotter its fiber optic guided missile ground-to-air missile crew would send off UAV first spot target seen coordinates would recorded missile sent di rectly target rather merely fired general direction Expensive mis sile misses would thus avoided latest model SCI bird made molded foam ABS plastic compos ite materials powered selection engines main being 1 5-cu-in diesel Total weight about 16 lb pay load 8 lb Westinghouse has come up novel electric-powered UAV wingspan 11 ft 4 gross weight 15 lb payload 5 lb hand launched like large glider operator holding con ventional RC model radio transmitter TV camera nose sends images back operator UAV flies automatic pi lot controller simply sends some preselected map coordinate fairly typical way operating UAVs bird flown back landed pilot visually just like model aircraft Westinghouse UAV has endur ance 11/2 hours typically flies 1000-2000 ft powered novel alu minum electrochemical battery said give about six times much operat Left Flying Pioneer UAV its recapture net takes great skill Several Pioneer UAVs lost inexperienced controllers flew net supporting poles Right Amber endurance UAV designed stay aloft long 36 hours such missions covert photo video surveillance communications relay can reach altitudes 27000 feet still remain functional ing time standard Ni-Cds potassium hydroxide electrolyte stored dry acti vated addition water battery has aluminum anode air cathode UAVs inexpensive enough expendable important infor mation received UAV other side hill can allowed crash exigencies battlefield sit uation demand Another bird can pulled out its box needed Another sophisticated UAV clearly shows its model airplane an94 Model Aviation Israeli-US Pioneer UAV has done great deal flying US Navy Its twin boom pusher layout typical several UAV designs because affords unobstructed forward view its sensors Pioneer truck-mounted pneumatic launch system avoid long takeoffs require ment large fields relatively heavy airplanes must catapulted rocket-launched line-up Amber endurance UAV types back row smaller Gnat trainer UAVs front row Gnat trainer designed teach UAV pilots fly carry out missions Left A glow-engine-powered UAV forward-looking camera rear-facing bobbin unreeling optical fiber line deliver unjammable video data back ground controller Right close-up fiber-optic UAV along its small ground controller video screen cestry Skycyc Developmental Sci ences has twin-boom layout push er prop common arrangement leaves clear field view cameras IR sensors Skyeye R4E-50 model can car ry 175-lb payload 10 hours flight 20-ft wingspan pow ered 46-hp water-cooled rotary engine launched catapult can recov ered skid landing parachute parafoil endurance category UAVs per haps best exemplified Amber Gnat family created Leading Systems Gnat simple UAV intended trainer Amber possibly other UAVs Gnat has wingspan about 13 ft 15 ft some models en gines used 6-hp 57-cu-in Sachs weighs 55 lb Its best endurance speed 3750 knots its best endurance 5000 ft Above a Marine corporal hand-launches AeroVironment Pointer mini-UAV during troop exercises Camp Pendleton CA Above Right Marine Staff Sergeant con trolling Pointer UAV seeing exactly what UAV sees through its nosemounted televisIon camera Right Pointer air UAV has 9-ft wing span weighs 75 lb constructed Keviar-reinforced epoxy has foam-core wings t propelled Astro FlIght 15 electric motor installed top wing worlds first tilt-rotor UAV Bell Boeing Pointer have made itS lrst 111gm No vember 21 1988 first test flights UAV has outriggers additional stability will removed after few hours flight time fIrst flight involve limited ward rearward sideways hover has 107-ft span between rotor prop centers J is-is mucn aa vanced UAV wingspans 25 40 ft depending model has maxi mum endurance 35 hours 5000 ft Maximum altitude 27800 ft interesting UAVs tilt-rotor Pointer now under development nearing its first flight after extensive wind-tunnel testing Built consortium Bell Helicopter Boeing engineers Pointer model full-sized V-22 Osprey tilt-rotor has has dered Air Force Navy Marine Corps use although has yet fly tilt-rotor concept involves taking off like helicopter large three-bladed airscrews vertical position transitioning level flight tilting en gines propellers vertical hori zontal best attributes helicopter fixed-wing flight thus obtained Pointer UAV has wingspan 107 ft between prop-rotor centers 137 ft long Gross weight 600 lb de signed have 6-hr endurance 100 knots payload 100 lb Pointer will controlled RC model transmit ter its first flights Rotary-wing UAVs have major advan tage over fixed-wing counterparts need means launching catapult rockets etc hard runway Any reasonably level piece ground will helicopter types Sprite pro duced ML Aviation England scheduled US services illustrates LIIISs airpiane nas contrarotat ing rotors 5 ft 3 in diameter eliminates need tail rotor About size model airplane has spherical fuselage approximately 2-ftdiameter weighs less 40kg can carried two men Sprite pow ered two 65-hp twin-cylinder twostroke engines started elec tric drill Sprite cruises 60 knots has ceiling 8000 ft endurance two hours typically operates up 20 miles controller As UAVs need flying skills mini mized using automatic flight controllers vehicle simply steered given lo cation Three-axis motions taken care automatic pilot sophisti cated UAVs can autonomously cruise about looking targets information deciding have return base refuel beyond scope article mini-UAV close model aircraft design practice AeroVironment Pointer confused BellBoeing Pointer tilt-rotor UAV 9-ftspan 7 /2-lb glider-type UAV As tro Flight 15 electric motor mounted top wing Made Kevlar-reinforced ep oxy foam-core wings carries day light TV camera nose Reconnais sance data downlink radio signals unjammable fiber-optic link can used Nlgnt Ouration nour patrol radius 3 miles flying speeds 22 45 mph AeroVironment Pointer launched hand has simple gyroscopic autostabilizer pilot does have worry about second-by-second control sees terrain through TV camera sim ply steers about Landing accomplished bringing plane back pilot area putting deep stall Ed Though specifically stated expect about like FFpop-up-tail dethermal izer UAV descends vertically hor izontal attitude company has supplied four Pointers US Marine Corps troop evalua tion close-range category UAV AeroVironment says Marines no train ing task have put together few minutes successful first flights So rapidly UAV development expanding today meet burgeoning demands military its hobby shop origins seem modest comparison Major air frame companies like Lockheed Bell Boeing now well represented new industry Some smaller UAV de velopers reminiscent manned air craft builders Thirties Forties handful enthusiasts RC modelers brainstorming new ideas sknnk works atmosphere As military requirements grow new de signs small UAVs fit close-range 96 Model Aviation category will appear turn could lead new construction materials new con trol servos new electronics innovations will inevitably have im pact hobby Further un manned aerial vehicle gains wide public rec ognition perhaps part through civilian us age super model airplanes will help modelers long run WRAM Show/Myers Continued page 82 known lose heads rubber engine mounts have known fail automobiles full-scale aircraft know isolators work claimed definitely maintenance item ISOMounts simply plug 1A-in holes drilled firewall expand like MollyTM fasteners makes very easy stall replace periodically Davis Die sel Development PO Box 141 Milford CT 06460 Strobe-F-Light 8405 Avenue N Brook lyn NY 11236 has added ADF-II its line goodies primarily lights Scale mod els ADF-II count-down-timer-oper ated beeper sounds off 15 minutes after receiver turned forget turn off get warned careless lose plane tall corn turn off transmitter beeper will help find plane again ADF-II works PCM original ADF sometimes didnt beeps 10 hours fully charged flight pack really appreciate de vice have fly Long land NY flying sites frequently surrounded eight-foot-high marsh grass Vintage Stunt/Keville Continued page 77 after Aldrich 10 percent fuel Yeah Dixons got some go ask him Worth mentioning Tom Dixon donated case Taffinder fuel use airline trav elers Likewise Don Nix RC flier president Powermaster Products deliv ered five gallons custom-blend Stunt fuel 900 ameven though mov ing entire operation new facilities weekend needed proof truly low-keyed high-spirited gather ing look 78 Walker Cup winner Bob Whitelys face read gag score posted him Round Two would have done 01 R J fell victim practical joke two judges very relaxed Paul Walker two-time Nationals winner fifth 1988 Kiev World Champs accomplice Tom Mr Aero Gloss Warden sent dummy scoresheets tabulators along CD part act shouldve seen Bobs face read 38200 posted what obviously superior performance Panther let him suffer bit before revealing true score 53250 Yes won alrightand warned us turkeys hed judging someday soon dont know what makes everyone want tease Whitely much Maybe read Fanchers monthly col umns figure its thing dunno got boisterous alright didnt prevent running meet totally book Now gotta real careful Being married CI leaves open accusations conflict interest worse can vouch AMA common sense safety rules strictly en forced Pit boss Randy Heydon kept steady flow both circles round completed about 100 pm left remainder afternoons socializing demonstration flights just plain enjoy ment happen feel Joey crew priceless interest fair play well let others the judge Round Nostalgia Tulsas De Forrest Hill fired up Netzeband-designed Fierce Arrow after signaling ficial flight proceeded fly free-style exhibition didnt phase Judges Klapin ski Rick Loomis Open Senior win ners respectively 1967 Nats went ahead scored takeoff landing couple maneuvers just hap pened fall right sequence went like Continued page 115 June 1989 97
Edition: Model Aviation - 1989/06
Page Numbers: 91, 92, 93, 94, 95, 96, 97
RC MODEL AIRCRAFT technology ginning move big way mil itary US NATO forces expanding plans use Unmanned Aerial Vehi cles UAVs multitude uses land sea Beyond military beginnings civiiafi uses model air craft derivatives surveying border sur veillance forestry other fields Its military signifi cant new developments RC technology happening will focus article whole thing got started rael group RC modelers thought hobby skills could help countrys army during its Lebanon campaign problem solved Israeli Air Force aircraft being hit enemy surface-toair missiles SAMs spotted fight ers radar infrared IR signatures modelers prepared large about 15-ftwingspan model fitted simple cam era equipment autopilot went looking SAM sites experiment wildly successful plane could loaf about 5000 ft area SAMs known detect its camera coordi nates fed back Israeli Army person nel sent out artillery fighters destroy SAMs model planes themselves appeared invulnerable no radar signature small altitude couldnt seen heard ground No knew circling high sky silently watching movement ground transmitting images back controllers electronically next step military usage RC models took place US Navy bat tleship USS Iowa positioned off Leba non shelling shore installations Needing determine exactly huge 16-in shells falling Navy asked Israe lis help answer naturally model airplane Navy fascinated see efficiently model aircraft could watch fall shells immediately transmit data ground personnel Gunnery corrections could easily quickly made story fascinated Navy peo June 1989 91 Top A Pioneer being rocket-launched night Pioneers have used extensively aboara Battleship USS Iowa rocket launches essential Above Pointer tilt-rotor UAV first UAV using tilt-rotor technology designed take oft vertically transition level flight combining best features helicopter fixed-wing flight pie watching TV screen UAV controllers hut close surveillance car moving up Bekaa Valley Leba non cars license plate could easily read UAV recorded driver stop ping outside building entering leaving driving away totally unaware unseen audience miles away Navy enthusiastic bought several examples later develop ment Israeli UAV called Pioneer built US AM Corporation con junction Israels Mazlat Navy gan integrating fleet use difficulty fact some flights hit headlines last summer inexperienced RC pilots flew frame recapture net wreck ing Meanwhile US Marine Corps getting interested battle field reconnaissance possibilities UAVs appealing idea credited di vision commander confusion heat battle ordered model airplane brought out box launched mission see over hill around corner after fun damental reconnaissance mission Along gunnery-spotting capability wanted Navy its aircraft free balloons went war first place Marines too bought some Pio neers called RC modelers among ranks report duty learn fly US Army working its own program some time spending great deal money Aquila UAV basically flying wing pusher prop step away model aircraft practice larger heavier though made much use composite materials models also classic example what happens overenthusiastic people try too much Although Aquila designed SkyEye R4E-50 UAV unmanned aerial vehicle autonomous flight 20-TI-span bird can fly given area carry out wide range of military duties such surveillance pho tography target spotting decoy duty etc return base risk personnel SkyEye controllers located safe rear area scanning battlefield scene through eyes UAV thick action screen displays visual information other will show map coordinates ne Iacsca vigeg map amupsay enagmes inieiiigence peruonne track position ot SkyEye relate its transmitted imagery tactical situation displayed area video display shown giving controllers continuous detailed picture SkyEyes altitude flight attitude control settings heading other aspects its assigned mission Sprite twin rotor UAV built Great Britain currently undergoing Foreign Weapons Evaluation tests aboard US mili tary vessels stationed Gulf Mexico built Lockheed itself perfectly satisfactory airplane problems mission design testing led Armys deci sion go production Thats history things stand today US NATO member gov ernments see tremendous potential un manned vehicles kinds taking over too dangerous men go unmanned vehicle will job just well far expensive manned vehicle will save lives expensive equipment Beyond scope article robotic miniature scout submarines tanks scout cars etc fact un manned aerial vehicle farthest along development Defense Department plans spend 21 billion dollars UAV procurement re search development over five-year period starting 1990 1989 bill alone will over 91 million dollars will four categories UAVs close-range short-range medium-range endur ance medium-range UAVs beyond interest because will large heavy very fast able fly out 700km launch point perhaps close-range endurance categories closest model aircraft technology close-range UAVs will required have range up 30km endurance UAVs will have able stay aloft 36-40 hours simply doing lazy eights up keeping eye things jobs will visual elec tronic surveillance eavesdropping jam ming enemy signals radars com munications relaying among other tasks Lets have look some small UAVs have developed ones look like model aircraft created Naval Air Develop ment Center Warminster PA Robin kit based Curtiss Robin late 1920s UAV version has strengthened Cameras have hung exhaust extension added prevent oil being blown over lens can carry 25-lb payload 50 mph flight duration about two hours Goodquality pictures have obtained craft 20 miles away airplane well target tracking sensor controlled pulse code modulation system Naval Air Development Centers own design called Loon pusher model ca pable carrying 10-lb payload 100 mph Centers reason doing perhaps overriding reasons June 1989 93 typical net capture Armys Aquila UAV end its mission enters net safely decelerated extending-lines attached kinetic energy absorption devices Naval Air Development Centers Robin UAV modified standard Robin kit fitted two surveillance cameras mounted under fuselage under wing Note exhaust extension installed keep oil away cameras lenses Loon sleek looking UAV designed Naval Air Development Center airplane capable carrying 10-pound payload Its assigned target area 100 miles per hour having UAVs cost entire UAV system several birds ground control station support equipment may tenth less manned strike/reconnaissance aircraft Another small UAV has developed SCI Technology Inc Huntsville AL make use fiber optic technology 80-in-wingspan model powered glow plug engine intended fly away its controller unreeling length opti cal fiber bobbin rear fu selage signal models TV camera transmitted via optical fiber ground controller sees image plane himself sees what camera sees course general principle UAVs advantage fiber optics signal cannot jammed enemy could radio signal SCI has proposed UAV Army miniature spotter its fiber optic guided missile ground-to-air missile crew would send off UAV first spot target seen coordinates would recorded missile sent di rectly target rather merely fired general direction Expensive mis sile misses would thus avoided latest model SCI bird made molded foam ABS plastic compos ite materials powered selection engines main being 1 5-cu-in diesel Total weight about 16 lb pay load 8 lb Westinghouse has come up novel electric-powered UAV wingspan 11 ft 4 gross weight 15 lb payload 5 lb hand launched like large glider operator holding con ventional RC model radio transmitter TV camera nose sends images back operator UAV flies automatic pi lot controller simply sends some preselected map coordinate fairly typical way operating UAVs bird flown back landed pilot visually just like model aircraft Westinghouse UAV has endur ance 11/2 hours typically flies 1000-2000 ft powered novel alu minum electrochemical battery said give about six times much operat Left Flying Pioneer UAV its recapture net takes great skill Several Pioneer UAVs lost inexperienced controllers flew net supporting poles Right Amber endurance UAV designed stay aloft long 36 hours such missions covert photo video surveillance communications relay can reach altitudes 27000 feet still remain functional ing time standard Ni-Cds potassium hydroxide electrolyte stored dry acti vated addition water battery has aluminum anode air cathode UAVs inexpensive enough expendable important infor mation received UAV other side hill can allowed crash exigencies battlefield sit uation demand Another bird can pulled out its box needed Another sophisticated UAV clearly shows its model airplane an94 Model Aviation Israeli-US Pioneer UAV has done great deal flying US Navy Its twin boom pusher layout typical several UAV designs because affords unobstructed forward view its sensors Pioneer truck-mounted pneumatic launch system avoid long takeoffs require ment large fields relatively heavy airplanes must catapulted rocket-launched line-up Amber endurance UAV types back row smaller Gnat trainer UAVs front row Gnat trainer designed teach UAV pilots fly carry out missions Left A glow-engine-powered UAV forward-looking camera rear-facing bobbin unreeling optical fiber line deliver unjammable video data back ground controller Right close-up fiber-optic UAV along its small ground controller video screen cestry Skycyc Developmental Sci ences has twin-boom layout push er prop common arrangement leaves clear field view cameras IR sensors Skyeye R4E-50 model can car ry 175-lb payload 10 hours flight 20-ft wingspan pow ered 46-hp water-cooled rotary engine launched catapult can recov ered skid landing parachute parafoil endurance category UAVs per haps best exemplified Amber Gnat family created Leading Systems Gnat simple UAV intended trainer Amber possibly other UAVs Gnat has wingspan about 13 ft 15 ft some models en gines used 6-hp 57-cu-in Sachs weighs 55 lb Its best endurance speed 3750 knots its best endurance 5000 ft Above a Marine corporal hand-launches AeroVironment Pointer mini-UAV during troop exercises Camp Pendleton CA Above Right Marine Staff Sergeant con trolling Pointer UAV seeing exactly what UAV sees through its nosemounted televisIon camera Right Pointer air UAV has 9-ft wing span weighs 75 lb constructed Keviar-reinforced epoxy has foam-core wings t propelled Astro FlIght 15 electric motor installed top wing worlds first tilt-rotor UAV Bell Boeing Pointer have made itS lrst 111gm No vember 21 1988 first test flights UAV has outriggers additional stability will removed after few hours flight time fIrst flight involve limited ward rearward sideways hover has 107-ft span between rotor prop centers J is-is mucn aa vanced UAV wingspans 25 40 ft depending model has maxi mum endurance 35 hours 5000 ft Maximum altitude 27800 ft interesting UAVs tilt-rotor Pointer now under development nearing its first flight after extensive wind-tunnel testing Built consortium Bell Helicopter Boeing engineers Pointer model full-sized V-22 Osprey tilt-rotor has has dered Air Force Navy Marine Corps use although has yet fly tilt-rotor concept involves taking off like helicopter large three-bladed airscrews vertical position transitioning level flight tilting en gines propellers vertical hori zontal best attributes helicopter fixed-wing flight thus obtained Pointer UAV has wingspan 107 ft between prop-rotor centers 137 ft long Gross weight 600 lb de signed have 6-hr endurance 100 knots payload 100 lb Pointer will controlled RC model transmit ter its first flights Rotary-wing UAVs have major advan tage over fixed-wing counterparts need means launching catapult rockets etc hard runway Any reasonably level piece ground will helicopter types Sprite pro duced ML Aviation England scheduled US services illustrates LIIISs airpiane nas contrarotat ing rotors 5 ft 3 in diameter eliminates need tail rotor About size model airplane has spherical fuselage approximately 2-ftdiameter weighs less 40kg can carried two men Sprite pow ered two 65-hp twin-cylinder twostroke engines started elec tric drill Sprite cruises 60 knots has ceiling 8000 ft endurance two hours typically operates up 20 miles controller As UAVs need flying skills mini mized using automatic flight controllers vehicle simply steered given lo cation Three-axis motions taken care automatic pilot sophisti cated UAVs can autonomously cruise about looking targets information deciding have return base refuel beyond scope article mini-UAV close model aircraft design practice AeroVironment Pointer confused BellBoeing Pointer tilt-rotor UAV 9-ftspan 7 /2-lb glider-type UAV As tro Flight 15 electric motor mounted top wing Made Kevlar-reinforced ep oxy foam-core wings carries day light TV camera nose Reconnais sance data downlink radio signals unjammable fiber-optic link can used Nlgnt Ouration nour patrol radius 3 miles flying speeds 22 45 mph AeroVironment Pointer launched hand has simple gyroscopic autostabilizer pilot does have worry about second-by-second control sees terrain through TV camera sim ply steers about Landing accomplished bringing plane back pilot area putting deep stall Ed Though specifically stated expect about like FFpop-up-tail dethermal izer UAV descends vertically hor izontal attitude company has supplied four Pointers US Marine Corps troop evalua tion close-range category UAV AeroVironment says Marines no train ing task have put together few minutes successful first flights So rapidly UAV development expanding today meet burgeoning demands military its hobby shop origins seem modest comparison Major air frame companies like Lockheed Bell Boeing now well represented new industry Some smaller UAV de velopers reminiscent manned air craft builders Thirties Forties handful enthusiasts RC modelers brainstorming new ideas sknnk works atmosphere As military requirements grow new de signs small UAVs fit close-range 96 Model Aviation category will appear turn could lead new construction materials new con trol servos new electronics innovations will inevitably have im pact hobby Further un manned aerial vehicle gains wide public rec ognition perhaps part through civilian us age super model airplanes will help modelers long run WRAM Show/Myers Continued page 82 known lose heads rubber engine mounts have known fail automobiles full-scale aircraft know isolators work claimed definitely maintenance item ISOMounts simply plug 1A-in holes drilled firewall expand like MollyTM fasteners makes very easy stall replace periodically Davis Die sel Development PO Box 141 Milford CT 06460 Strobe-F-Light 8405 Avenue N Brook lyn NY 11236 has added ADF-II its line goodies primarily lights Scale mod els ADF-II count-down-timer-oper ated beeper sounds off 15 minutes after receiver turned forget turn off get warned careless lose plane tall corn turn off transmitter beeper will help find plane again ADF-II works PCM original ADF sometimes didnt beeps 10 hours fully charged flight pack really appreciate de vice have fly Long land NY flying sites frequently surrounded eight-foot-high marsh grass Vintage Stunt/Keville Continued page 77 after Aldrich 10 percent fuel Yeah Dixons got some go ask him Worth mentioning Tom Dixon donated case Taffinder fuel use airline trav elers Likewise Don Nix RC flier president Powermaster Products deliv ered five gallons custom-blend Stunt fuel 900 ameven though mov ing entire operation new facilities weekend needed proof truly low-keyed high-spirited gather ing look 78 Walker Cup winner Bob Whitelys face read gag score posted him Round Two would have done 01 R J fell victim practical joke two judges very relaxed Paul Walker two-time Nationals winner fifth 1988 Kiev World Champs accomplice Tom Mr Aero Gloss Warden sent dummy scoresheets tabulators along CD part act shouldve seen Bobs face read 38200 posted what obviously superior performance Panther let him suffer bit before revealing true score 53250 Yes won alrightand warned us turkeys hed judging someday soon dont know what makes everyone want tease Whitely much Maybe read Fanchers monthly col umns figure its thing dunno got boisterous alright didnt prevent running meet totally book Now gotta real careful Being married CI leaves open accusations conflict interest worse can vouch AMA common sense safety rules strictly en forced Pit boss Randy Heydon kept steady flow both circles round completed about 100 pm left remainder afternoons socializing demonstration flights just plain enjoy ment happen feel Joey crew priceless interest fair play well let others the judge Round Nostalgia Tulsas De Forrest Hill fired up Netzeband-designed Fierce Arrow after signaling ficial flight proceeded fly free-style exhibition didnt phase Judges Klapin ski Rick Loomis Open Senior win ners respectively 1967 Nats went ahead scored takeoff landing couple maneuvers just hap pened fall right sequence went like Continued page 115 June 1989 97
Edition: Model Aviation - 1989/06
Page Numbers: 91, 92, 93, 94, 95, 96, 97
RC MODEL AIRCRAFT technology ginning move big way mil itary US NATO forces expanding plans use Unmanned Aerial Vehi cles UAVs multitude uses land sea Beyond military beginnings civiiafi uses model air craft derivatives surveying border sur veillance forestry other fields Its military signifi cant new developments RC technology happening will focus article whole thing got started rael group RC modelers thought hobby skills could help countrys army during its Lebanon campaign problem solved Israeli Air Force aircraft being hit enemy surface-toair missiles SAMs spotted fight ers radar infrared IR signatures modelers prepared large about 15-ftwingspan model fitted simple cam era equipment autopilot went looking SAM sites experiment wildly successful plane could loaf about 5000 ft area SAMs known detect its camera coordi nates fed back Israeli Army person nel sent out artillery fighters destroy SAMs model planes themselves appeared invulnerable no radar signature small altitude couldnt seen heard ground No knew circling high sky silently watching movement ground transmitting images back controllers electronically next step military usage RC models took place US Navy bat tleship USS Iowa positioned off Leba non shelling shore installations Needing determine exactly huge 16-in shells falling Navy asked Israe lis help answer naturally model airplane Navy fascinated see efficiently model aircraft could watch fall shells immediately transmit data ground personnel Gunnery corrections could easily quickly made story fascinated Navy peo June 1989 91 Top A Pioneer being rocket-launched night Pioneers have used extensively aboara Battleship USS Iowa rocket launches essential Above Pointer tilt-rotor UAV first UAV using tilt-rotor technology designed take oft vertically transition level flight combining best features helicopter fixed-wing flight pie watching TV screen UAV controllers hut close surveillance car moving up Bekaa Valley Leba non cars license plate could easily read UAV recorded driver stop ping outside building entering leaving driving away totally unaware unseen audience miles away Navy enthusiastic bought several examples later develop ment Israeli UAV called Pioneer built US AM Corporation con junction Israels Mazlat Navy gan integrating fleet use difficulty fact some flights hit headlines last summer inexperienced RC pilots flew frame recapture net wreck ing Meanwhile US Marine Corps getting interested battle field reconnaissance possibilities UAVs appealing idea credited di vision commander confusion heat battle ordered model airplane brought out box launched mission see over hill around corner after fun damental reconnaissance mission Along gunnery-spotting capability wanted Navy its aircraft free balloons went war first place Marines too bought some Pio neers called RC modelers among ranks report duty learn fly US Army working its own program some time spending great deal money Aquila UAV basically flying wing pusher prop step away model aircraft practice larger heavier though made much use composite materials models also classic example what happens overenthusiastic people try too much Although Aquila designed SkyEye R4E-50 UAV unmanned aerial vehicle autonomous flight 20-TI-span bird can fly given area carry out wide range of military duties such surveillance pho tography target spotting decoy duty etc return base risk personnel SkyEye controllers located safe rear area scanning battlefield scene through eyes UAV thick action screen displays visual information other will show map coordinates ne Iacsca vigeg map amupsay enagmes inieiiigence peruonne track position ot SkyEye relate its transmitted imagery tactical situation displayed area video display shown giving controllers continuous detailed picture SkyEyes altitude flight attitude control settings heading other aspects its assigned mission Sprite twin rotor UAV built Great Britain currently undergoing Foreign Weapons Evaluation tests aboard US mili tary vessels stationed Gulf Mexico built Lockheed itself perfectly satisfactory airplane problems mission design testing led Armys deci sion go production Thats history things stand today US NATO member gov ernments see tremendous potential un manned vehicles kinds taking over too dangerous men go unmanned vehicle will job just well far expensive manned vehicle will save lives expensive equipment Beyond scope article robotic miniature scout submarines tanks scout cars etc fact un manned aerial vehicle farthest along development Defense Department plans spend 21 billion dollars UAV procurement re search development over five-year period starting 1990 1989 bill alone will over 91 million dollars will four categories UAVs close-range short-range medium-range endur ance medium-range UAVs beyond interest because will large heavy very fast able fly out 700km launch point perhaps close-range endurance categories closest model aircraft technology close-range UAVs will required have range up 30km endurance UAVs will have able stay aloft 36-40 hours simply doing lazy eights up keeping eye things jobs will visual elec tronic surveillance eavesdropping jam ming enemy signals radars com munications relaying among other tasks Lets have look some small UAVs have developed ones look like model aircraft created Naval Air Develop ment Center Warminster PA Robin kit based Curtiss Robin late 1920s UAV version has strengthened Cameras have hung exhaust extension added prevent oil being blown over lens can carry 25-lb payload 50 mph flight duration about two hours Goodquality pictures have obtained craft 20 miles away airplane well target tracking sensor controlled pulse code modulation system Naval Air Development Centers own design called Loon pusher model ca pable carrying 10-lb payload 100 mph Centers reason doing perhaps overriding reasons June 1989 93 typical net capture Armys Aquila UAV end its mission enters net safely decelerated extending-lines attached kinetic energy absorption devices Naval Air Development Centers Robin UAV modified standard Robin kit fitted two surveillance cameras mounted under fuselage under wing Note exhaust extension installed keep oil away cameras lenses Loon sleek looking UAV designed Naval Air Development Center airplane capable carrying 10-pound payload Its assigned target area 100 miles per hour having UAVs cost entire UAV system several birds ground control station support equipment may tenth less manned strike/reconnaissance aircraft Another small UAV has developed SCI Technology Inc Huntsville AL make use fiber optic technology 80-in-wingspan model powered glow plug engine intended fly away its controller unreeling length opti cal fiber bobbin rear fu selage signal models TV camera transmitted via optical fiber ground controller sees image plane himself sees what camera sees course general principle UAVs advantage fiber optics signal cannot jammed enemy could radio signal SCI has proposed UAV Army miniature spotter its fiber optic guided missile ground-to-air missile crew would send off UAV first spot target seen coordinates would recorded missile sent di rectly target rather merely fired general direction Expensive mis sile misses would thus avoided latest model SCI bird made molded foam ABS plastic compos ite materials powered selection engines main being 1 5-cu-in diesel Total weight about 16 lb pay load 8 lb Westinghouse has come up novel electric-powered UAV wingspan 11 ft 4 gross weight 15 lb payload 5 lb hand launched like large glider operator holding con ventional RC model radio transmitter TV camera nose sends images back operator UAV flies automatic pi lot controller simply sends some preselected map coordinate fairly typical way operating UAVs bird flown back landed pilot visually just like model aircraft Westinghouse UAV has endur ance 11/2 hours typically flies 1000-2000 ft powered novel alu minum electrochemical battery said give about six times much operat Left Flying Pioneer UAV its recapture net takes great skill Several Pioneer UAVs lost inexperienced controllers flew net supporting poles Right Amber endurance UAV designed stay aloft long 36 hours such missions covert photo video surveillance communications relay can reach altitudes 27000 feet still remain functional ing time standard Ni-Cds potassium hydroxide electrolyte stored dry acti vated addition water battery has aluminum anode air cathode UAVs inexpensive enough expendable important infor mation received UAV other side hill can allowed crash exigencies battlefield sit uation demand Another bird can pulled out its box needed Another sophisticated UAV clearly shows its model airplane an94 Model Aviation Israeli-US Pioneer UAV has done great deal flying US Navy Its twin boom pusher layout typical several UAV designs because affords unobstructed forward view its sensors Pioneer truck-mounted pneumatic launch system avoid long takeoffs require ment large fields relatively heavy airplanes must catapulted rocket-launched line-up Amber endurance UAV types back row smaller Gnat trainer UAVs front row Gnat trainer designed teach UAV pilots fly carry out missions Left A glow-engine-powered UAV forward-looking camera rear-facing bobbin unreeling optical fiber line deliver unjammable video data back ground controller Right close-up fiber-optic UAV along its small ground controller video screen cestry Skycyc Developmental Sci ences has twin-boom layout push er prop common arrangement leaves clear field view cameras IR sensors Skyeye R4E-50 model can car ry 175-lb payload 10 hours flight 20-ft wingspan pow ered 46-hp water-cooled rotary engine launched catapult can recov ered skid landing parachute parafoil endurance category UAVs per haps best exemplified Amber Gnat family created Leading Systems Gnat simple UAV intended trainer Amber possibly other UAVs Gnat has wingspan about 13 ft 15 ft some models en gines used 6-hp 57-cu-in Sachs weighs 55 lb Its best endurance speed 3750 knots its best endurance 5000 ft Above a Marine corporal hand-launches AeroVironment Pointer mini-UAV during troop exercises Camp Pendleton CA Above Right Marine Staff Sergeant con trolling Pointer UAV seeing exactly what UAV sees through its nosemounted televisIon camera Right Pointer air UAV has 9-ft wing span weighs 75 lb constructed Keviar-reinforced epoxy has foam-core wings t propelled Astro FlIght 15 electric motor installed top wing worlds first tilt-rotor UAV Bell Boeing Pointer have made itS lrst 111gm No vember 21 1988 first test flights UAV has outriggers additional stability will removed after few hours flight time fIrst flight involve limited ward rearward sideways hover has 107-ft span between rotor prop centers J is-is mucn aa vanced UAV wingspans 25 40 ft depending model has maxi mum endurance 35 hours 5000 ft Maximum altitude 27800 ft interesting UAVs tilt-rotor Pointer now under development nearing its first flight after extensive wind-tunnel testing Built consortium Bell Helicopter Boeing engineers Pointer model full-sized V-22 Osprey tilt-rotor has has dered Air Force Navy Marine Corps use although has yet fly tilt-rotor concept involves taking off like helicopter large three-bladed airscrews vertical position transitioning level flight tilting en gines propellers vertical hori zontal best attributes helicopter fixed-wing flight thus obtained Pointer UAV has wingspan 107 ft between prop-rotor centers 137 ft long Gross weight 600 lb de signed have 6-hr endurance 100 knots payload 100 lb Pointer will controlled RC model transmit ter its first flights Rotary-wing UAVs have major advan tage over fixed-wing counterparts need means launching catapult rockets etc hard runway Any reasonably level piece ground will helicopter types Sprite pro duced ML Aviation England scheduled US services illustrates LIIISs airpiane nas contrarotat ing rotors 5 ft 3 in diameter eliminates need tail rotor About size model airplane has spherical fuselage approximately 2-ftdiameter weighs less 40kg can carried two men Sprite pow ered two 65-hp twin-cylinder twostroke engines started elec tric drill Sprite cruises 60 knots has ceiling 8000 ft endurance two hours typically operates up 20 miles controller As UAVs need flying skills mini mized using automatic flight controllers vehicle simply steered given lo cation Three-axis motions taken care automatic pilot sophisti cated UAVs can autonomously cruise about looking targets information deciding have return base refuel beyond scope article mini-UAV close model aircraft design practice AeroVironment Pointer confused BellBoeing Pointer tilt-rotor UAV 9-ftspan 7 /2-lb glider-type UAV As tro Flight 15 electric motor mounted top wing Made Kevlar-reinforced ep oxy foam-core wings carries day light TV camera nose Reconnais sance data downlink radio signals unjammable fiber-optic link can used Nlgnt Ouration nour patrol radius 3 miles flying speeds 22 45 mph AeroVironment Pointer launched hand has simple gyroscopic autostabilizer pilot does have worry about second-by-second control sees terrain through TV camera sim ply steers about Landing accomplished bringing plane back pilot area putting deep stall Ed Though specifically stated expect about like FFpop-up-tail dethermal izer UAV descends vertically hor izontal attitude company has supplied four Pointers US Marine Corps troop evalua tion close-range category UAV AeroVironment says Marines no train ing task have put together few minutes successful first flights So rapidly UAV development expanding today meet burgeoning demands military its hobby shop origins seem modest comparison Major air frame companies like Lockheed Bell Boeing now well represented new industry Some smaller UAV de velopers reminiscent manned air craft builders Thirties Forties handful enthusiasts RC modelers brainstorming new ideas sknnk works atmosphere As military requirements grow new de signs small UAVs fit close-range 96 Model Aviation category will appear turn could lead new construction materials new con trol servos new electronics innovations will inevitably have im pact hobby Further un manned aerial vehicle gains wide public rec ognition perhaps part through civilian us age super model airplanes will help modelers long run WRAM Show/Myers Continued page 82 known lose heads rubber engine mounts have known fail automobiles full-scale aircraft know isolators work claimed definitely maintenance item ISOMounts simply plug 1A-in holes drilled firewall expand like MollyTM fasteners makes very easy stall replace periodically Davis Die sel Development PO Box 141 Milford CT 06460 Strobe-F-Light 8405 Avenue N Brook lyn NY 11236 has added ADF-II its line goodies primarily lights Scale mod els ADF-II count-down-timer-oper ated beeper sounds off 15 minutes after receiver turned forget turn off get warned careless lose plane tall corn turn off transmitter beeper will help find plane again ADF-II works PCM original ADF sometimes didnt beeps 10 hours fully charged flight pack really appreciate de vice have fly Long land NY flying sites frequently surrounded eight-foot-high marsh grass Vintage Stunt/Keville Continued page 77 after Aldrich 10 percent fuel Yeah Dixons got some go ask him Worth mentioning Tom Dixon donated case Taffinder fuel use airline trav elers Likewise Don Nix RC flier president Powermaster Products deliv ered five gallons custom-blend Stunt fuel 900 ameven though mov ing entire operation new facilities weekend needed proof truly low-keyed high-spirited gather ing look 78 Walker Cup winner Bob Whitelys face read gag score posted him Round Two would have done 01 R J fell victim practical joke two judges very relaxed Paul Walker two-time Nationals winner fifth 1988 Kiev World Champs accomplice Tom Mr Aero Gloss Warden sent dummy scoresheets tabulators along CD part act shouldve seen Bobs face read 38200 posted what obviously superior performance Panther let him suffer bit before revealing true score 53250 Yes won alrightand warned us turkeys hed judging someday soon dont know what makes everyone want tease Whitely much Maybe read Fanchers monthly col umns figure its thing dunno got boisterous alright didnt prevent running meet totally book Now gotta real careful Being married CI leaves open accusations conflict interest worse can vouch AMA common sense safety rules strictly en forced Pit boss Randy Heydon kept steady flow both circles round completed about 100 pm left remainder afternoons socializing demonstration flights just plain enjoy ment happen feel Joey crew priceless interest fair play well let others the judge Round Nostalgia Tulsas De Forrest Hill fired up Netzeband-designed Fierce Arrow after signaling ficial flight proceeded fly free-style exhibition didnt phase Judges Klapin ski Rick Loomis Open Senior win ners respectively 1967 Nats went ahead scored takeoff landing couple maneuvers just hap pened fall right sequence went like Continued page 115 June 1989 97