George M Myers AC Flying Today 70 Froehllch Farm Rd Hicks yule NY 11801 L STOLFUS MAPT NORTH FOUR FLYING FIELD NEW MIDWEST FLYING FIELD LYLE STOLFUS RR#1 Fredericksburg IA [tel 319 237-5807] called response article can fly October 91 issue MA Lyle wants us know has converted four acres farm model airport MAPT has named North Four Flying Field 650 x 65-ft sod runway aligned north/south suit prevailing winds parking 100 cars plus big spool-type tables tie-downs models electric lights packing up after dark no problems except bugs season neighbors two cemeteries dont complain isnt likely will building area interfere flying An instructor available three motels large city park RVs camping nearby New Hampton 14 miles also four hobby shops within 40-mile radius Fredericksburg has nine-hole golf course swimming pool tennis courts ball parks nice city park RV parking dumping station also features Carols family-style cafe two convenience stores During three-day period June Mr Stolfus hosts fun fly Black Hawk Flying Club Waterloo Iowa flies exhibitions public part annual Dairy Days celebration Dairy Days week-long June festival parades pretty girls demonstrations etc Lyle sent along 36 Model Aviation N w FARM LAND S ABSTRACT Stolfus MAPT retrieving models LORAN GPS Farm Land Farm FBURGLand plot plan Lyle Stolfus North Four Flying Field 420 5847N 920 1147W Rochester MN NIAHiway24______________ NEW HAMPTONLAWLER WE 1 s mia IA Hiway 348us6 mi 18FREDRICKSBURG Nashua STOLFUS MAPT 3/4 mi N County V48 Local map shows ares around North Four Flying Field routes Fredericksburg Iowa gui-in ruui riema pui area ieusures work tables built-in model tie downs other flying sues USA have such luxury Lyle Stolfus AMA 341332 dIsplays old Gazzariiter plane powered K&B61 Sportster guided Alrtronics VG6DR radio manmade pond behind Lyle ad jacent runway 20 ft deep Dont fall unless swim well copy local newspaper Review stories Dairy Days activities June Dairy Month Fredericksburg Iowa bills itself Dairy Capitol Iowa Open flying permitted AMA members daily year-around weather permitting North Four Flying Field should investigate site could ideal kinds contests Road distances Minneapolis Rochester Minnesota Cedar Rapids Iowa Chicago Illinois seem reasonable weekend events go tell him George sent polite guest keep mind North Four Flying Field private property grateful modeler has provided such delightful site having gone some government public funds parking lot separated runway mamnade pond about 60 x 300 ft size 20-ft deep Lyle thinks may too short seaplanes willing host boat races Bring life-jacket go anywhere near water because 20 ft very deep might need SCUBA recover sunken boats planes fence separates spectators fliers Lyle says no plans RC car trackn site time knows what will happen enough people show interest report very easy prepare Lyle sent pictures drawings descriptions sufficient flying site data base am trying have created AMA resource LORAN REVISITED Another reader has written suggest additional use LORAN As old-time builder Indoor models designer Red Zephyr some 55 years ago liked presentation Loran C RC Flying Today column Having just returned Jean Nevada participated timer SAM event activity Ive away 50 years realized advantage use LORAN hadnt mentionedretrieval lost models Six models lost Jean Judging general wind direction can guess went down less same general area learned another modeler flown Aeronca Champ flight strip right behind hotel Gold strike approached him suggested Contest Director Ed Hamler might interested having us search missing ships PL-99 portable LORAN would have easy matter us working team pinpoint location downed models Lat/Lon within 60 ft models position Either post-flight briefing radioing position ground would have permitted searchers footor carto travel reported position think could have recovered lost models technique suggestion accepted though imagine cost search would have small mountains area virtually devoid trees likelihood spotting models air good Mr Myers think have nucleus great idea Is/Herb Greenberg Springfield New Jersey Thanks kind words Mr Greenberg dont already know event Jean Nevada Society Antique Modelers SAM Nationals FF RC held October 7-10 1991 friend Retrieving lost models always problem Free Flight airplanes now carry tiny radio transmitter weight 0 grams including battery broadcasts beep low power 10 mw about same wireless telephone might have home can picked up portable receiver device modelers can find models places like cornfields corn high elephants eye problem LORAN wont put right top model 60 ft away tall corn same far side moon problem low-power beeper transmitters usually have get within 1A mile hear certainty although range two miles claimed Continued page 94 February 1992 37 view looks runway southwest toward parking lot illustrates park ing area safe convenient distance flying activities separated flying pond striped pole supports electric lights provides 110 VAC charging batteries Author Myers also noticed fire extinguisher garbage can small flags hind spool-type work tables mark poles spectator fence photo above isa view looking south down runway North Four Flying Field Iowa below gives us look down runway south Photos Lyle Stoif us Larry Davidson East Northport New York crowned champion scouting wind Which important good hill good wind mind wind critical Favorable wind can sustain flight marginal hills Conversely worlds best bill little use wind wrong direction Sometimes youre flying flaflandssay schoolyardsand cant catch thermal can grab minutes flying time beading Sailplane ridge lift produced treeline Dave Thornberg talks gliding two minutes lift produced pile dirt left after excavating basement Once during thermal Sailplane contest winds 20-25 mph won round staying fD&J aloft four minutes lift generated single tree course wind must favorable either tricks work Youll need wind fast enough generate enough lift particular model Low winds will support light models higher winds will support heavier faster models test lift stand top bill hold model launch position wind tends raise model out hand theres enough lift flying model doesnt lighten hand theres plenty wind small highstart may useful Sometimes will launch plane easily productive lift ever too windy fly cant stand up wind youll have trouble ELECTRONICS 900 Lucy Road Howell Michigan 48843 517-546-2644 Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzer Endorsed AMA RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER Carry Full Line RCD RXs & Products Upgrading. ASK ABOUT THE NEW HOT FOCUS SERIES RADIO CONTROL SYSTEMS FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S Mail VISA / MASTERCARD & DISCOVER WELCOMED AMA #256123ARRLWB8YSQ flying Thats about upper limit Ive flown Douglas Quicksilver hour 30-knot 34-mph winds conclusion next month discusses find good slope sites E RC Flying Today/Myers Continued page 37 Using both LORAN beeper should find planes As example LORAN can tell you might car traveling down road someplace watcb plane go down distance magnetic compass could measure bearing plane Based apparent size model see can reasonable job estimating its distance can calculate Lat/Lon downed airplane Now can take LORAN beeper receiver walk drive vicinity plane have go around lake trees fenced property get beeper can take model its tall corn up tree Retrieval systems sources very ligbtweight beepers Bradley Model Products 1337 Pine Sap Court Orlando FL 32825 Jim Walston Retrieval Systems 725 Cooper Lake Rd Smyrna GA 30082 reading through November 91 issue BYTE magazine saw Jerry Pournelle driven down Baja California view eclipse used computer program define right spot beach located GPS Global Positioning System need navigate space west Mississippi east California GPS will work places LORAN wont GPS hardware/software sources EZ Cosmos $6995 Future Trends Software DeSoto TX 75115 Magellan GPS Nay 1000 Pro $3750 Magellan Systems Corp Monrovia CA 91016 Which hrings up another reader letter First thank writing general aviation column MA other columns very useful informative its nice read about things affect RC fliers Keep up good work reason writing interest generated LORAN articles have unique use navigation equipment Id like clear up some misconceptions about GPS though work industry leaders GPS started out LORAN Trimble Navigation true cost GPS receiver less figures gave 94 Model Aviation AERIAL MODEL AIRCRAPT PRODUCTS AIvIAP cutter bow $17900 213 965-9504AMAP power supply$4900 FLAIR SLOPEAnodized available Add$1000 Fuselage $6000 Three-piece fuse T tailor / tail also sell cut cores available airfoils MH42 MH43 MH62 MH64 7003 RGI5 RGI4A Ce~e16 Foam cores $5000 17 S30laFull Money-Back 30 s35m antee S~FLAIR-SLOPE Il/SPORT ELECTRIC t Fuse Complete $6000 Length 43 h 3 ht 340 & 60 Size Motor Rewmmended Slip-on Nose Cone Fuselage made EZ Lam EpoXyBlue Foam 2 lb24 X 96 X 2 $2900 Aerospace Composite ProductsDensity Will cut shipping 12 X 48 please specify Bob Ratzlalf 1641 South Elismere Ave Los Angles CA 90019 ASW 171/4 Scale 4 M Basic Kit $28500 Thermal Phase Hand Launch 60 E 387 $5000 True can spend tens thousands dollars some equipment thats primarily survey geographic people need 1 cm right 1 centimeter accuracy low end TransPac competitors products Magellen Pro-Nay available under $2000 Mr Paden included brochures companys products including TransPac GPS hand-held GPS receiver available $1795 GMM typical accuracy LORAN 200 meters What makes seem accurate its good repeatability LORAN may show absolute error makes same error time GMM LORANs repeatability typically 25 meters GPS 15 meters LORAN cheaper GPS because has simpler signal structure low frequency 100 kHz amplitude-modulated AM prone interference manmade natural causes GPS operates 1575 1227 GHz spread-spectrum signal 50 baud thus requires expensive receiver resistant interference currently 15 16 GPS satellites orbit 21 satellites orbit GPS will permit three-dimensional navigation ANYWHERE ON OR ABOVE THE EARTH Eventually technology will lower price receivers GPS will become standard form navigation land sea air hope dont mind lesson GPS part problem lack knowledge about especially compared older LORAN think ideas have merit hope something comes also hope someday soon youll retire LORAN receiver favor someones inexpensive accurate GPS receiver Is/Tom Paden Mountain View California talk about LORAN GPS has pointI am absolutely convinced AMA must learn precisely flying sites USA ways know flying sites will possible make national directory similar constructed Roger Jaffe friends San Diego County Modelers Association use directory example everyone USA collecting such information except please add Lat/Lon site information Having national flying site data base will vastly simplify contest coordination job make lot easier find out-of-town contest sites aid protecting sites have plus help us get new ones Theres nothing like being able show local government officials 4000 voters modelers within 15 miles place wantII SPA Contest/Van Putte Continued page 41 pretty sporty until get used Im used yet Mickey Walker also editor SPA newsletter called Mickeys S PA News intends newsletter source information airplane kits engines related vintage Pattern airplanes will list available kits engines people send him lists received first issue just before finishing column dont know regular Mickey intends publishing newsletter admits success failure depends much support input receive first issue included report first contest current list legal airplanes October 1 1991 rather extensive input John Fuqua described string related coincidences went through finding building two A-6 Intruder kits flew first SPA contest few weeks before went contest Don Lowe Eglin AFB flying RPV test program got together couple times After listening talk about what John Fuqua doing involving SPA finally said Youre really excited about arent ever right E February 1992 95
Edition: Model Aviation - 1992/02
Page Numbers: 36, 37, 94, 95
George M Myers AC Flying Today 70 Froehllch Farm Rd Hicks yule NY 11801 L STOLFUS MAPT NORTH FOUR FLYING FIELD NEW MIDWEST FLYING FIELD LYLE STOLFUS RR#1 Fredericksburg IA [tel 319 237-5807] called response article can fly October 91 issue MA Lyle wants us know has converted four acres farm model airport MAPT has named North Four Flying Field 650 x 65-ft sod runway aligned north/south suit prevailing winds parking 100 cars plus big spool-type tables tie-downs models electric lights packing up after dark no problems except bugs season neighbors two cemeteries dont complain isnt likely will building area interfere flying An instructor available three motels large city park RVs camping nearby New Hampton 14 miles also four hobby shops within 40-mile radius Fredericksburg has nine-hole golf course swimming pool tennis courts ball parks nice city park RV parking dumping station also features Carols family-style cafe two convenience stores During three-day period June Mr Stolfus hosts fun fly Black Hawk Flying Club Waterloo Iowa flies exhibitions public part annual Dairy Days celebration Dairy Days week-long June festival parades pretty girls demonstrations etc Lyle sent along 36 Model Aviation N w FARM LAND S ABSTRACT Stolfus MAPT retrieving models LORAN GPS Farm Land Farm FBURGLand plot plan Lyle Stolfus North Four Flying Field 420 5847N 920 1147W Rochester MN NIAHiway24______________ NEW HAMPTONLAWLER WE 1 s mia IA Hiway 348us6 mi 18FREDRICKSBURG Nashua STOLFUS MAPT 3/4 mi N County V48 Local map shows ares around North Four Flying Field routes Fredericksburg Iowa gui-in ruui riema pui area ieusures work tables built-in model tie downs other flying sues USA have such luxury Lyle Stolfus AMA 341332 dIsplays old Gazzariiter plane powered K&B61 Sportster guided Alrtronics VG6DR radio manmade pond behind Lyle ad jacent runway 20 ft deep Dont fall unless swim well copy local newspaper Review stories Dairy Days activities June Dairy Month Fredericksburg Iowa bills itself Dairy Capitol Iowa Open flying permitted AMA members daily year-around weather permitting North Four Flying Field should investigate site could ideal kinds contests Road distances Minneapolis Rochester Minnesota Cedar Rapids Iowa Chicago Illinois seem reasonable weekend events go tell him George sent polite guest keep mind North Four Flying Field private property grateful modeler has provided such delightful site having gone some government public funds parking lot separated runway mamnade pond about 60 x 300 ft size 20-ft deep Lyle thinks may too short seaplanes willing host boat races Bring life-jacket go anywhere near water because 20 ft very deep might need SCUBA recover sunken boats planes fence separates spectators fliers Lyle says no plans RC car trackn site time knows what will happen enough people show interest report very easy prepare Lyle sent pictures drawings descriptions sufficient flying site data base am trying have created AMA resource LORAN REVISITED Another reader has written suggest additional use LORAN As old-time builder Indoor models designer Red Zephyr some 55 years ago liked presentation Loran C RC Flying Today column Having just returned Jean Nevada participated timer SAM event activity Ive away 50 years realized advantage use LORAN hadnt mentionedretrieval lost models Six models lost Jean Judging general wind direction can guess went down less same general area learned another modeler flown Aeronca Champ flight strip right behind hotel Gold strike approached him suggested Contest Director Ed Hamler might interested having us search missing ships PL-99 portable LORAN would have easy matter us working team pinpoint location downed models Lat/Lon within 60 ft models position Either post-flight briefing radioing position ground would have permitted searchers footor carto travel reported position think could have recovered lost models technique suggestion accepted though imagine cost search would have small mountains area virtually devoid trees likelihood spotting models air good Mr Myers think have nucleus great idea Is/Herb Greenberg Springfield New Jersey Thanks kind words Mr Greenberg dont already know event Jean Nevada Society Antique Modelers SAM Nationals FF RC held October 7-10 1991 friend Retrieving lost models always problem Free Flight airplanes now carry tiny radio transmitter weight 0 grams including battery broadcasts beep low power 10 mw about same wireless telephone might have home can picked up portable receiver device modelers can find models places like cornfields corn high elephants eye problem LORAN wont put right top model 60 ft away tall corn same far side moon problem low-power beeper transmitters usually have get within 1A mile hear certainty although range two miles claimed Continued page 94 February 1992 37 view looks runway southwest toward parking lot illustrates park ing area safe convenient distance flying activities separated flying pond striped pole supports electric lights provides 110 VAC charging batteries Author Myers also noticed fire extinguisher garbage can small flags hind spool-type work tables mark poles spectator fence photo above isa view looking south down runway North Four Flying Field Iowa below gives us look down runway south Photos Lyle Stoif us Larry Davidson East Northport New York crowned champion scouting wind Which important good hill good wind mind wind critical Favorable wind can sustain flight marginal hills Conversely worlds best bill little use wind wrong direction Sometimes youre flying flaflandssay schoolyardsand cant catch thermal can grab minutes flying time beading Sailplane ridge lift produced treeline Dave Thornberg talks gliding two minutes lift produced pile dirt left after excavating basement Once during thermal Sailplane contest winds 20-25 mph won round staying fD&J aloft four minutes lift generated single tree course wind must favorable either tricks work Youll need wind fast enough generate enough lift particular model Low winds will support light models higher winds will support heavier faster models test lift stand top bill hold model launch position wind tends raise model out hand theres enough lift flying model doesnt lighten hand theres plenty wind small highstart may useful Sometimes will launch plane easily productive lift ever too windy fly cant stand up wind youll have trouble ELECTRONICS 900 Lucy Road Howell Michigan 48843 517-546-2644 Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzer Endorsed AMA RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER Carry Full Line RCD RXs & Products Upgrading. ASK ABOUT THE NEW HOT FOCUS SERIES RADIO CONTROL SYSTEMS FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S Mail VISA / MASTERCARD & DISCOVER WELCOMED AMA #256123ARRLWB8YSQ flying Thats about upper limit Ive flown Douglas Quicksilver hour 30-knot 34-mph winds conclusion next month discusses find good slope sites E RC Flying Today/Myers Continued page 37 Using both LORAN beeper should find planes As example LORAN can tell you might car traveling down road someplace watcb plane go down distance magnetic compass could measure bearing plane Based apparent size model see can reasonable job estimating its distance can calculate Lat/Lon downed airplane Now can take LORAN beeper receiver walk drive vicinity plane have go around lake trees fenced property get beeper can take model its tall corn up tree Retrieval systems sources very ligbtweight beepers Bradley Model Products 1337 Pine Sap Court Orlando FL 32825 Jim Walston Retrieval Systems 725 Cooper Lake Rd Smyrna GA 30082 reading through November 91 issue BYTE magazine saw Jerry Pournelle driven down Baja California view eclipse used computer program define right spot beach located GPS Global Positioning System need navigate space west Mississippi east California GPS will work places LORAN wont GPS hardware/software sources EZ Cosmos $6995 Future Trends Software DeSoto TX 75115 Magellan GPS Nay 1000 Pro $3750 Magellan Systems Corp Monrovia CA 91016 Which hrings up another reader letter First thank writing general aviation column MA other columns very useful informative its nice read about things affect RC fliers Keep up good work reason writing interest generated LORAN articles have unique use navigation equipment Id like clear up some misconceptions about GPS though work industry leaders GPS started out LORAN Trimble Navigation true cost GPS receiver less figures gave 94 Model Aviation AERIAL MODEL AIRCRAPT PRODUCTS AIvIAP cutter bow $17900 213 965-9504AMAP power supply$4900 FLAIR SLOPEAnodized available Add$1000 Fuselage $6000 Three-piece fuse T tailor / tail also sell cut cores available airfoils MH42 MH43 MH62 MH64 7003 RGI5 RGI4A Ce~e16 Foam cores $5000 17 S30laFull Money-Back 30 s35m antee S~FLAIR-SLOPE Il/SPORT ELECTRIC t Fuse Complete $6000 Length 43 h 3 ht 340 & 60 Size Motor Rewmmended Slip-on Nose Cone Fuselage made EZ Lam EpoXyBlue Foam 2 lb24 X 96 X 2 $2900 Aerospace Composite ProductsDensity Will cut shipping 12 X 48 please specify Bob Ratzlalf 1641 South Elismere Ave Los Angles CA 90019 ASW 171/4 Scale 4 M Basic Kit $28500 Thermal Phase Hand Launch 60 E 387 $5000 True can spend tens thousands dollars some equipment thats primarily survey geographic people need 1 cm right 1 centimeter accuracy low end TransPac competitors products Magellen Pro-Nay available under $2000 Mr Paden included brochures companys products including TransPac GPS hand-held GPS receiver available $1795 GMM typical accuracy LORAN 200 meters What makes seem accurate its good repeatability LORAN may show absolute error makes same error time GMM LORANs repeatability typically 25 meters GPS 15 meters LORAN cheaper GPS because has simpler signal structure low frequency 100 kHz amplitude-modulated AM prone interference manmade natural causes GPS operates 1575 1227 GHz spread-spectrum signal 50 baud thus requires expensive receiver resistant interference currently 15 16 GPS satellites orbit 21 satellites orbit GPS will permit three-dimensional navigation ANYWHERE ON OR ABOVE THE EARTH Eventually technology will lower price receivers GPS will become standard form navigation land sea air hope dont mind lesson GPS part problem lack knowledge about especially compared older LORAN think ideas have merit hope something comes also hope someday soon youll retire LORAN receiver favor someones inexpensive accurate GPS receiver Is/Tom Paden Mountain View California talk about LORAN GPS has pointI am absolutely convinced AMA must learn precisely flying sites USA ways know flying sites will possible make national directory similar constructed Roger Jaffe friends San Diego County Modelers Association use directory example everyone USA collecting such information except please add Lat/Lon site information Having national flying site data base will vastly simplify contest coordination job make lot easier find out-of-town contest sites aid protecting sites have plus help us get new ones Theres nothing like being able show local government officials 4000 voters modelers within 15 miles place wantII SPA Contest/Van Putte Continued page 41 pretty sporty until get used Im used yet Mickey Walker also editor SPA newsletter called Mickeys S PA News intends newsletter source information airplane kits engines related vintage Pattern airplanes will list available kits engines people send him lists received first issue just before finishing column dont know regular Mickey intends publishing newsletter admits success failure depends much support input receive first issue included report first contest current list legal airplanes October 1 1991 rather extensive input John Fuqua described string related coincidences went through finding building two A-6 Intruder kits flew first SPA contest few weeks before went contest Don Lowe Eglin AFB flying RPV test program got together couple times After listening talk about what John Fuqua doing involving SPA finally said Youre really excited about arent ever right E February 1992 95
Edition: Model Aviation - 1992/02
Page Numbers: 36, 37, 94, 95
George M Myers AC Flying Today 70 Froehllch Farm Rd Hicks yule NY 11801 L STOLFUS MAPT NORTH FOUR FLYING FIELD NEW MIDWEST FLYING FIELD LYLE STOLFUS RR#1 Fredericksburg IA [tel 319 237-5807] called response article can fly October 91 issue MA Lyle wants us know has converted four acres farm model airport MAPT has named North Four Flying Field 650 x 65-ft sod runway aligned north/south suit prevailing winds parking 100 cars plus big spool-type tables tie-downs models electric lights packing up after dark no problems except bugs season neighbors two cemeteries dont complain isnt likely will building area interfere flying An instructor available three motels large city park RVs camping nearby New Hampton 14 miles also four hobby shops within 40-mile radius Fredericksburg has nine-hole golf course swimming pool tennis courts ball parks nice city park RV parking dumping station also features Carols family-style cafe two convenience stores During three-day period June Mr Stolfus hosts fun fly Black Hawk Flying Club Waterloo Iowa flies exhibitions public part annual Dairy Days celebration Dairy Days week-long June festival parades pretty girls demonstrations etc Lyle sent along 36 Model Aviation N w FARM LAND S ABSTRACT Stolfus MAPT retrieving models LORAN GPS Farm Land Farm FBURGLand plot plan Lyle Stolfus North Four Flying Field 420 5847N 920 1147W Rochester MN NIAHiway24______________ NEW HAMPTONLAWLER WE 1 s mia IA Hiway 348us6 mi 18FREDRICKSBURG Nashua STOLFUS MAPT 3/4 mi N County V48 Local map shows ares around North Four Flying Field routes Fredericksburg Iowa gui-in ruui riema pui area ieusures work tables built-in model tie downs other flying sues USA have such luxury Lyle Stolfus AMA 341332 dIsplays old Gazzariiter plane powered K&B61 Sportster guided Alrtronics VG6DR radio manmade pond behind Lyle ad jacent runway 20 ft deep Dont fall unless swim well copy local newspaper Review stories Dairy Days activities June Dairy Month Fredericksburg Iowa bills itself Dairy Capitol Iowa Open flying permitted AMA members daily year-around weather permitting North Four Flying Field should investigate site could ideal kinds contests Road distances Minneapolis Rochester Minnesota Cedar Rapids Iowa Chicago Illinois seem reasonable weekend events go tell him George sent polite guest keep mind North Four Flying Field private property grateful modeler has provided such delightful site having gone some government public funds parking lot separated runway mamnade pond about 60 x 300 ft size 20-ft deep Lyle thinks may too short seaplanes willing host boat races Bring life-jacket go anywhere near water because 20 ft very deep might need SCUBA recover sunken boats planes fence separates spectators fliers Lyle says no plans RC car trackn site time knows what will happen enough people show interest report very easy prepare Lyle sent pictures drawings descriptions sufficient flying site data base am trying have created AMA resource LORAN REVISITED Another reader has written suggest additional use LORAN As old-time builder Indoor models designer Red Zephyr some 55 years ago liked presentation Loran C RC Flying Today column Having just returned Jean Nevada participated timer SAM event activity Ive away 50 years realized advantage use LORAN hadnt mentionedretrieval lost models Six models lost Jean Judging general wind direction can guess went down less same general area learned another modeler flown Aeronca Champ flight strip right behind hotel Gold strike approached him suggested Contest Director Ed Hamler might interested having us search missing ships PL-99 portable LORAN would have easy matter us working team pinpoint location downed models Lat/Lon within 60 ft models position Either post-flight briefing radioing position ground would have permitted searchers footor carto travel reported position think could have recovered lost models technique suggestion accepted though imagine cost search would have small mountains area virtually devoid trees likelihood spotting models air good Mr Myers think have nucleus great idea Is/Herb Greenberg Springfield New Jersey Thanks kind words Mr Greenberg dont already know event Jean Nevada Society Antique Modelers SAM Nationals FF RC held October 7-10 1991 friend Retrieving lost models always problem Free Flight airplanes now carry tiny radio transmitter weight 0 grams including battery broadcasts beep low power 10 mw about same wireless telephone might have home can picked up portable receiver device modelers can find models places like cornfields corn high elephants eye problem LORAN wont put right top model 60 ft away tall corn same far side moon problem low-power beeper transmitters usually have get within 1A mile hear certainty although range two miles claimed Continued page 94 February 1992 37 view looks runway southwest toward parking lot illustrates park ing area safe convenient distance flying activities separated flying pond striped pole supports electric lights provides 110 VAC charging batteries Author Myers also noticed fire extinguisher garbage can small flags hind spool-type work tables mark poles spectator fence photo above isa view looking south down runway North Four Flying Field Iowa below gives us look down runway south Photos Lyle Stoif us Larry Davidson East Northport New York crowned champion scouting wind Which important good hill good wind mind wind critical Favorable wind can sustain flight marginal hills Conversely worlds best bill little use wind wrong direction Sometimes youre flying flaflandssay schoolyardsand cant catch thermal can grab minutes flying time beading Sailplane ridge lift produced treeline Dave Thornberg talks gliding two minutes lift produced pile dirt left after excavating basement Once during thermal Sailplane contest winds 20-25 mph won round staying fD&J aloft four minutes lift generated single tree course wind must favorable either tricks work Youll need wind fast enough generate enough lift particular model Low winds will support light models higher winds will support heavier faster models test lift stand top bill hold model launch position wind tends raise model out hand theres enough lift flying model doesnt lighten hand theres plenty wind small highstart may useful Sometimes will launch plane easily productive lift ever too windy fly cant stand up wind youll have trouble ELECTRONICS 900 Lucy Road Howell Michigan 48843 517-546-2644 Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzer Endorsed AMA RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER Carry Full Line RCD RXs & Products Upgrading. ASK ABOUT THE NEW HOT FOCUS SERIES RADIO CONTROL SYSTEMS FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S Mail VISA / MASTERCARD & DISCOVER WELCOMED AMA #256123ARRLWB8YSQ flying Thats about upper limit Ive flown Douglas Quicksilver hour 30-knot 34-mph winds conclusion next month discusses find good slope sites E RC Flying Today/Myers Continued page 37 Using both LORAN beeper should find planes As example LORAN can tell you might car traveling down road someplace watcb plane go down distance magnetic compass could measure bearing plane Based apparent size model see can reasonable job estimating its distance can calculate Lat/Lon downed airplane Now can take LORAN beeper receiver walk drive vicinity plane have go around lake trees fenced property get beeper can take model its tall corn up tree Retrieval systems sources very ligbtweight beepers Bradley Model Products 1337 Pine Sap Court Orlando FL 32825 Jim Walston Retrieval Systems 725 Cooper Lake Rd Smyrna GA 30082 reading through November 91 issue BYTE magazine saw Jerry Pournelle driven down Baja California view eclipse used computer program define right spot beach located GPS Global Positioning System need navigate space west Mississippi east California GPS will work places LORAN wont GPS hardware/software sources EZ Cosmos $6995 Future Trends Software DeSoto TX 75115 Magellan GPS Nay 1000 Pro $3750 Magellan Systems Corp Monrovia CA 91016 Which hrings up another reader letter First thank writing general aviation column MA other columns very useful informative its nice read about things affect RC fliers Keep up good work reason writing interest generated LORAN articles have unique use navigation equipment Id like clear up some misconceptions about GPS though work industry leaders GPS started out LORAN Trimble Navigation true cost GPS receiver less figures gave 94 Model Aviation AERIAL MODEL AIRCRAPT PRODUCTS AIvIAP cutter bow $17900 213 965-9504AMAP power supply$4900 FLAIR SLOPEAnodized available Add$1000 Fuselage $6000 Three-piece fuse T tailor / tail also sell cut cores available airfoils MH42 MH43 MH62 MH64 7003 RGI5 RGI4A Ce~e16 Foam cores $5000 17 S30laFull Money-Back 30 s35m antee S~FLAIR-SLOPE Il/SPORT ELECTRIC t Fuse Complete $6000 Length 43 h 3 ht 340 & 60 Size Motor Rewmmended Slip-on Nose Cone Fuselage made EZ Lam EpoXyBlue Foam 2 lb24 X 96 X 2 $2900 Aerospace Composite ProductsDensity Will cut shipping 12 X 48 please specify Bob Ratzlalf 1641 South Elismere Ave Los Angles CA 90019 ASW 171/4 Scale 4 M Basic Kit $28500 Thermal Phase Hand Launch 60 E 387 $5000 True can spend tens thousands dollars some equipment thats primarily survey geographic people need 1 cm right 1 centimeter accuracy low end TransPac competitors products Magellen Pro-Nay available under $2000 Mr Paden included brochures companys products including TransPac GPS hand-held GPS receiver available $1795 GMM typical accuracy LORAN 200 meters What makes seem accurate its good repeatability LORAN may show absolute error makes same error time GMM LORANs repeatability typically 25 meters GPS 15 meters LORAN cheaper GPS because has simpler signal structure low frequency 100 kHz amplitude-modulated AM prone interference manmade natural causes GPS operates 1575 1227 GHz spread-spectrum signal 50 baud thus requires expensive receiver resistant interference currently 15 16 GPS satellites orbit 21 satellites orbit GPS will permit three-dimensional navigation ANYWHERE ON OR ABOVE THE EARTH Eventually technology will lower price receivers GPS will become standard form navigation land sea air hope dont mind lesson GPS part problem lack knowledge about especially compared older LORAN think ideas have merit hope something comes also hope someday soon youll retire LORAN receiver favor someones inexpensive accurate GPS receiver Is/Tom Paden Mountain View California talk about LORAN GPS has pointI am absolutely convinced AMA must learn precisely flying sites USA ways know flying sites will possible make national directory similar constructed Roger Jaffe friends San Diego County Modelers Association use directory example everyone USA collecting such information except please add Lat/Lon site information Having national flying site data base will vastly simplify contest coordination job make lot easier find out-of-town contest sites aid protecting sites have plus help us get new ones Theres nothing like being able show local government officials 4000 voters modelers within 15 miles place wantII SPA Contest/Van Putte Continued page 41 pretty sporty until get used Im used yet Mickey Walker also editor SPA newsletter called Mickeys S PA News intends newsletter source information airplane kits engines related vintage Pattern airplanes will list available kits engines people send him lists received first issue just before finishing column dont know regular Mickey intends publishing newsletter admits success failure depends much support input receive first issue included report first contest current list legal airplanes October 1 1991 rather extensive input John Fuqua described string related coincidences went through finding building two A-6 Intruder kits flew first SPA contest few weeks before went contest Don Lowe Eglin AFB flying RPV test program got together couple times After listening talk about what John Fuqua doing involving SPA finally said Youre really excited about arent ever right E February 1992 95
Edition: Model Aviation - 1992/02
Page Numbers: 36, 37, 94, 95
George M Myers AC Flying Today 70 Froehllch Farm Rd Hicks yule NY 11801 L STOLFUS MAPT NORTH FOUR FLYING FIELD NEW MIDWEST FLYING FIELD LYLE STOLFUS RR#1 Fredericksburg IA [tel 319 237-5807] called response article can fly October 91 issue MA Lyle wants us know has converted four acres farm model airport MAPT has named North Four Flying Field 650 x 65-ft sod runway aligned north/south suit prevailing winds parking 100 cars plus big spool-type tables tie-downs models electric lights packing up after dark no problems except bugs season neighbors two cemeteries dont complain isnt likely will building area interfere flying An instructor available three motels large city park RVs camping nearby New Hampton 14 miles also four hobby shops within 40-mile radius Fredericksburg has nine-hole golf course swimming pool tennis courts ball parks nice city park RV parking dumping station also features Carols family-style cafe two convenience stores During three-day period June Mr Stolfus hosts fun fly Black Hawk Flying Club Waterloo Iowa flies exhibitions public part annual Dairy Days celebration Dairy Days week-long June festival parades pretty girls demonstrations etc Lyle sent along 36 Model Aviation N w FARM LAND S ABSTRACT Stolfus MAPT retrieving models LORAN GPS Farm Land Farm FBURGLand plot plan Lyle Stolfus North Four Flying Field 420 5847N 920 1147W Rochester MN NIAHiway24______________ NEW HAMPTONLAWLER WE 1 s mia IA Hiway 348us6 mi 18FREDRICKSBURG Nashua STOLFUS MAPT 3/4 mi N County V48 Local map shows ares around North Four Flying Field routes Fredericksburg Iowa gui-in ruui riema pui area ieusures work tables built-in model tie downs other flying sues USA have such luxury Lyle Stolfus AMA 341332 dIsplays old Gazzariiter plane powered K&B61 Sportster guided Alrtronics VG6DR radio manmade pond behind Lyle ad jacent runway 20 ft deep Dont fall unless swim well copy local newspaper Review stories Dairy Days activities June Dairy Month Fredericksburg Iowa bills itself Dairy Capitol Iowa Open flying permitted AMA members daily year-around weather permitting North Four Flying Field should investigate site could ideal kinds contests Road distances Minneapolis Rochester Minnesota Cedar Rapids Iowa Chicago Illinois seem reasonable weekend events go tell him George sent polite guest keep mind North Four Flying Field private property grateful modeler has provided such delightful site having gone some government public funds parking lot separated runway mamnade pond about 60 x 300 ft size 20-ft deep Lyle thinks may too short seaplanes willing host boat races Bring life-jacket go anywhere near water because 20 ft very deep might need SCUBA recover sunken boats planes fence separates spectators fliers Lyle says no plans RC car trackn site time knows what will happen enough people show interest report very easy prepare Lyle sent pictures drawings descriptions sufficient flying site data base am trying have created AMA resource LORAN REVISITED Another reader has written suggest additional use LORAN As old-time builder Indoor models designer Red Zephyr some 55 years ago liked presentation Loran C RC Flying Today column Having just returned Jean Nevada participated timer SAM event activity Ive away 50 years realized advantage use LORAN hadnt mentionedretrieval lost models Six models lost Jean Judging general wind direction can guess went down less same general area learned another modeler flown Aeronca Champ flight strip right behind hotel Gold strike approached him suggested Contest Director Ed Hamler might interested having us search missing ships PL-99 portable LORAN would have easy matter us working team pinpoint location downed models Lat/Lon within 60 ft models position Either post-flight briefing radioing position ground would have permitted searchers footor carto travel reported position think could have recovered lost models technique suggestion accepted though imagine cost search would have small mountains area virtually devoid trees likelihood spotting models air good Mr Myers think have nucleus great idea Is/Herb Greenberg Springfield New Jersey Thanks kind words Mr Greenberg dont already know event Jean Nevada Society Antique Modelers SAM Nationals FF RC held October 7-10 1991 friend Retrieving lost models always problem Free Flight airplanes now carry tiny radio transmitter weight 0 grams including battery broadcasts beep low power 10 mw about same wireless telephone might have home can picked up portable receiver device modelers can find models places like cornfields corn high elephants eye problem LORAN wont put right top model 60 ft away tall corn same far side moon problem low-power beeper transmitters usually have get within 1A mile hear certainty although range two miles claimed Continued page 94 February 1992 37 view looks runway southwest toward parking lot illustrates park ing area safe convenient distance flying activities separated flying pond striped pole supports electric lights provides 110 VAC charging batteries Author Myers also noticed fire extinguisher garbage can small flags hind spool-type work tables mark poles spectator fence photo above isa view looking south down runway North Four Flying Field Iowa below gives us look down runway south Photos Lyle Stoif us Larry Davidson East Northport New York crowned champion scouting wind Which important good hill good wind mind wind critical Favorable wind can sustain flight marginal hills Conversely worlds best bill little use wind wrong direction Sometimes youre flying flaflandssay schoolyardsand cant catch thermal can grab minutes flying time beading Sailplane ridge lift produced treeline Dave Thornberg talks gliding two minutes lift produced pile dirt left after excavating basement Once during thermal Sailplane contest winds 20-25 mph won round staying fD&J aloft four minutes lift generated single tree course wind must favorable either tricks work Youll need wind fast enough generate enough lift particular model Low winds will support light models higher winds will support heavier faster models test lift stand top bill hold model launch position wind tends raise model out hand theres enough lift flying model doesnt lighten hand theres plenty wind small highstart may useful Sometimes will launch plane easily productive lift ever too windy fly cant stand up wind youll have trouble ELECTRONICS 900 Lucy Road Howell Michigan 48843 517-546-2644 Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzer Endorsed AMA RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER Carry Full Line RCD RXs & Products Upgrading. ASK ABOUT THE NEW HOT FOCUS SERIES RADIO CONTROL SYSTEMS FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S Mail VISA / MASTERCARD & DISCOVER WELCOMED AMA #256123ARRLWB8YSQ flying Thats about upper limit Ive flown Douglas Quicksilver hour 30-knot 34-mph winds conclusion next month discusses find good slope sites E RC Flying Today/Myers Continued page 37 Using both LORAN beeper should find planes As example LORAN can tell you might car traveling down road someplace watcb plane go down distance magnetic compass could measure bearing plane Based apparent size model see can reasonable job estimating its distance can calculate Lat/Lon downed airplane Now can take LORAN beeper receiver walk drive vicinity plane have go around lake trees fenced property get beeper can take model its tall corn up tree Retrieval systems sources very ligbtweight beepers Bradley Model Products 1337 Pine Sap Court Orlando FL 32825 Jim Walston Retrieval Systems 725 Cooper Lake Rd Smyrna GA 30082 reading through November 91 issue BYTE magazine saw Jerry Pournelle driven down Baja California view eclipse used computer program define right spot beach located GPS Global Positioning System need navigate space west Mississippi east California GPS will work places LORAN wont GPS hardware/software sources EZ Cosmos $6995 Future Trends Software DeSoto TX 75115 Magellan GPS Nay 1000 Pro $3750 Magellan Systems Corp Monrovia CA 91016 Which hrings up another reader letter First thank writing general aviation column MA other columns very useful informative its nice read about things affect RC fliers Keep up good work reason writing interest generated LORAN articles have unique use navigation equipment Id like clear up some misconceptions about GPS though work industry leaders GPS started out LORAN Trimble Navigation true cost GPS receiver less figures gave 94 Model Aviation AERIAL MODEL AIRCRAPT PRODUCTS AIvIAP cutter bow $17900 213 965-9504AMAP power supply$4900 FLAIR SLOPEAnodized available Add$1000 Fuselage $6000 Three-piece fuse T tailor / tail also sell cut cores available airfoils MH42 MH43 MH62 MH64 7003 RGI5 RGI4A Ce~e16 Foam cores $5000 17 S30laFull Money-Back 30 s35m antee S~FLAIR-SLOPE Il/SPORT ELECTRIC t Fuse Complete $6000 Length 43 h 3 ht 340 & 60 Size Motor Rewmmended Slip-on Nose Cone Fuselage made EZ Lam EpoXyBlue Foam 2 lb24 X 96 X 2 $2900 Aerospace Composite ProductsDensity Will cut shipping 12 X 48 please specify Bob Ratzlalf 1641 South Elismere Ave Los Angles CA 90019 ASW 171/4 Scale 4 M Basic Kit $28500 Thermal Phase Hand Launch 60 E 387 $5000 True can spend tens thousands dollars some equipment thats primarily survey geographic people need 1 cm right 1 centimeter accuracy low end TransPac competitors products Magellen Pro-Nay available under $2000 Mr Paden included brochures companys products including TransPac GPS hand-held GPS receiver available $1795 GMM typical accuracy LORAN 200 meters What makes seem accurate its good repeatability LORAN may show absolute error makes same error time GMM LORANs repeatability typically 25 meters GPS 15 meters LORAN cheaper GPS because has simpler signal structure low frequency 100 kHz amplitude-modulated AM prone interference manmade natural causes GPS operates 1575 1227 GHz spread-spectrum signal 50 baud thus requires expensive receiver resistant interference currently 15 16 GPS satellites orbit 21 satellites orbit GPS will permit three-dimensional navigation ANYWHERE ON OR ABOVE THE EARTH Eventually technology will lower price receivers GPS will become standard form navigation land sea air hope dont mind lesson GPS part problem lack knowledge about especially compared older LORAN think ideas have merit hope something comes also hope someday soon youll retire LORAN receiver favor someones inexpensive accurate GPS receiver Is/Tom Paden Mountain View California talk about LORAN GPS has pointI am absolutely convinced AMA must learn precisely flying sites USA ways know flying sites will possible make national directory similar constructed Roger Jaffe friends San Diego County Modelers Association use directory example everyone USA collecting such information except please add Lat/Lon site information Having national flying site data base will vastly simplify contest coordination job make lot easier find out-of-town contest sites aid protecting sites have plus help us get new ones Theres nothing like being able show local government officials 4000 voters modelers within 15 miles place wantII SPA Contest/Van Putte Continued page 41 pretty sporty until get used Im used yet Mickey Walker also editor SPA newsletter called Mickeys S PA News intends newsletter source information airplane kits engines related vintage Pattern airplanes will list available kits engines people send him lists received first issue just before finishing column dont know regular Mickey intends publishing newsletter admits success failure depends much support input receive first issue included report first contest current list legal airplanes October 1 1991 rather extensive input John Fuqua described string related coincidences went through finding building two A-6 Intruder kits flew first SPA contest few weeks before went contest Don Lowe Eglin AFB flying RPV test program got together couple times After listening talk about what John Fuqua doing involving SPA finally said Youre really excited about arent ever right E February 1992 95