Sateig Cmwsl list An RC flier electro cuted Dangers seen winding Rubber models con trol RC frequencies flying field 0 John Preston WE START months column somber note Sunday January 3 19-year-old RC Sailplane flier Lakewood CA electrocuted after climbed up utility pole supporting power line retrieve model become entangled wires number readers sent us newspaper clippings reported incident through Associated Press news release detailed account appeared Long Beach Press-Telegram ran story front page column has reported previous electrocu don deaths associated model flying caused Control Line model its control lines either struck came close proximity overhead power lines Lakewood incident first weve heard concerned modeler climbing utility pole retrieve model Whether fly CL RC FF models urge never attempt retrieve entangled model yourself Both telephone power companies will respond call assistance though may take longer arrive may like no model worth risk life Photographs accompanied newspaper ar ticles concerning needless death showed utility pole crossbar supporting lines both wooden together very small insulators attaching lines crossbar causes us wonder perhaps victim assumed lines telephone wires rather high voltage 2330 V power lines site incident Bluff Park apparently favorite among Slope Soaring enthusiasts area However time happened regular fliers park because light winds producing marginal slope lift Presumably experienced fliers well aware hazard presented overhead power lines since quoted newspaper saying Im sure regular fliers would have no way victim would have allowed go up pole Another flier states usually just throw something get down Normally rocks work best occasional shake pole Usually just hanging up few threads doubt power company would appre ciate having rocks thrown lines poles As previously stated encourage anyone experiencing model entanglement overhead lines call utility company immediately Never under circumstances attempt climb utility pole ladder attempt release entangled model yourself record victim AMA member however accounts experienced modeler rather beginner hope relating account death future incident type can averted letter during January George Batiuk Sr well known Free Flight modeler Huntsville AL Prior receiving Georges letter would have expressed much scepticism Peanut Scale model could cause bodily injury Maybe following account George will give some appreciation energy can stored piece twisted rubber have reading Safety Comes First column since its inception have benefited discussion did involve areas interest areas flying Rubber-Powered models Pea nut Mulvihill would think appar ently benign phase hobby could contain potential danger complacent ones toountil woke up observed what going around FF contests What going ever increasing numbers fliers using some form protec tion model winding rubber motor procedure requires some means removing protective device usually some form tube inside fuselage after wind ing motor before hooking up prop means usually employed wire tubing rod sufficient length accept blast tube inside fuselage potential danger arises winding technique wherein wire tubing rod exten sion retained between winder motor during winding process Can imagine destructive power transmitted h-in diameter aluminum rod 42-in longwhich what use Mulvihill still attached 16-strand motor upwards 700 winds motor breaks think extreme case consider incident witnessed Coffee Air foilers annuals Tullahoma TN Peanut being wound small extension rod somewhere order 10-in long 1/3 2in diameter motor broke rod flew down runway rebounding high enough strike flier mouth chipping tooth often does happen ask As inost accidents once enough recipient think might go step further George say Mulvihill Wake field motors once might too muck So Free Flighters enjoy twisted-rubber form energy derive motive power say Careful Another letter received January came Tom Brink lives Kentwood MI Tom member Western Michigan Radio Aircraft Fliers club recently elected office Continued page 14 12 Model Aviation 00 NI CUDDLES DID SILLX OLD ME HAPPEN TO LEAVE TANSMI1TEI LAYING AROUND AT HOME Now Can Watch RIC Helicopter Flying Own Home Club Hobby Store GMP has produced video tape showing aspects R/C Helicopter flying Will See * Beginners buying building ng Crickets flown beginners experts off land water Flying new GMP Hughes 300C Flying new Competitors * The fantastic Hirobo Scale Ranger static flying * The GMP helicopter factory facilitiesmanufacturing product support professionally produced tape full color sound Fixed wing 8 heli flyers say gives goose pimples Stop booth Toledo MACS preview outstanding video tape Send $3000 tape shipping Please specify VHS Beta format decide return tape simply send undamaged R/C Helicopters cassette us UPS w/in 30 days full prompt refund Overseas inquiries please send $4000 nonrefundable State VHS PAL Seacan American VTSC format LM NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI I well FUELyouI New high film strength lubricant N Increased power engine life Highest quality Ingredients IJ Detern~nt action cut varnish I I II II II II II II II II II IHOURS Monday thru Wednesday 9Z3U-3U lhursday b Fnday 93O-6OUI Saturday 930-6 00 Sunday 1200-500 L m ield Safety Officer wonder club has such officer should give some thought very least field committee chairmanthe guy responsible getting grass mowedshould charged task ensuring safe operations field Anyway back Toms letter Among other things Tom asked us ideas workable frequency control system RC flying field responding Toms letter thought might some readers column belong clubs already using system think will have used granted use additional RC frequencies FCC hope FCC proposal will have appeared Federal Register time read present time appears universal frequency control system use RC clubs clothespin system board box pit area flying field contains clothespins color-coded and/or marked specific RC frequency values dont turn transmitter unless have obtained pin designating particular fre quency Both clubs belong use system worksprovided members remember never turn unless have pin Most time remember like anything else dependent its success human input occasionally lapse memory occurs RC model reduced rubble dont know frequency control system infallible degree human error impossible anyone knows such system wed appreciate letter opinion two basic problems commonly used clothespin system first problem occurs go get clothespin frequency its missing board box check pilots field may determine nobody else has equip ment frequency safe say last guy fly frequency previous day went home pin still antenna usually case pin missing reason Field Committee Chairman Field Safety Officer very often carries some blank pins him serve replacements lost ones could however another reason pin frequency missing Suppose just before arrived field someone using frequency lost control model some reason went down behind trees far side field flier may have gone galloping off boondocks carrying transmitter him Weve seen happen occasions Usually other fliers will alert fact dont count So missing pins could result frequency conflict urge check carefully before assuming went home still clipped someones antenna Another shortcoming clothespin system occurs lot fliers field can inconvenience say least Lets assume youve flown during past 30 minutes because youve helping beginner get engine idle reliably Now want bore some holes sky latest creation has frequency clothespin Its board pilots flight line displaying antenna flags denoting frequencys color code Now have make systematic search through pit area asking everyone have orange white theory shouldnt happen cause yours organized club transContinued page 91 14 Model Aviation Safety Preston Continued page 14 mitters immediately returned impound after use dont permit guys diddle engines pit area have special area Right search pin should take couple seconds fellow fliers follow rules elusive pin seek could use someone process adjusting control throwsor whatever way solve whos got pin problem have pit area subdivided according frequency know number clubs have adopted approach feel definite plus minimizing accidental shoot-downs due human error find very reassuring flying such field can see-at-a-glance other users ones frequency Its also safety benefit have transmitter impound area coded frequency becomes simple task run ones eyes over transmitters ones own frequency check turned off Maybe trans mitter left its switch its antenna collapsed wouldnt radiate enough power cause interference Wed rather take chance this dialogue leading up frequency control system think will appropriate going successfully control use some 50 RC frequencies Perhaps AMA Frequency Committee already has system figured out wed like hear about details frequency control system have mind board rack tray some such thing would prominently displayed pit area close transmitter impound club member wishing fly would place personal frequency marker board before turning transmitter current RC frequencies persons marker would color-coded frequency would contain name Anyone else wishing fly frequency would easily see presence color-coded marker already use name marker using person could seen flight line could quickly check presence pits see really preparing flyor just forgot left marker board after last flight know some clubs already using some variation system wed appreci ate some information about its success permission granted FCC use additional frequencies understand current color-code method frequency identification will replaced channel num bers colored background add number new frequencies existing 72 MHz 6-meter frequencies arrive large number under commonly used old clothespin system frequency identity could quite nightmare Somebody club might have full-time job just replacing missing clothespins think system requires flier provide own frequency marker superior could some problems effect ing orderly changeover new system dont think would insurmountable have asked what happens under new system member arrives club field fly find left marker home response has another question What happens flier arrives field finds has left transmitter home answer simple go nearest telephone booth call wife brings missing item Out field Right Any comments suggested frequency control system would appreciated especially clubs already using similar system Have safe month John Preston 7012 Ehira Cour4 Falls Church VA 22042 Fun/Winter Continued page 22 gives security fly FF security thing must foreswear am sure can see obvious flaw defining model servos aboard basis infrequently controls utilized modeler FFer basis much time elapses between picking up trans mitter its next use draw line finition followed its logical conclusion would state model RC CL Free Flight moment controls moving modeler FFer moment does cause controls operated. entials have legitimizing effect what say So define FF FFers ways make terms null void concerns case referring model FF criteria original FF design legitimate install RC gear Joe reasons because modeler does have know trim strictly FF model quite few people fly RC SAM events have never attempted trim FF dont know aerodynamics involved FF work cer tainly could fly model took RC gear Out. am Ito accept somehow model RC gear controlling surfaces really FF sets transmitter ground irrespective fact cant trim FF simply because original design flown FF Am Ito accept modelers truly FFers simply because design flying stable enough continue circling control inputs cant sell bill goods FF isnt cheap Conversely just because instance FFer models fly look like FF models cannot change fact now RC modeler Just example above model does have power make its owner FFer neither does ability knowledge skill FFer confer model fly FF model status None reasons calling RC model RC FF will hold drop water FF RC unmixable like oil water cannot change no matter emotion ally dependent identifying models yourself FF have given up FF very reasonable reasons What will hurt admit Growing older nothing ashamed hope some day Ralph Prey editor Satellite San Valeers FF Club As using RC 8-ft Korda think FF has got thinking about using RC just arent FF fields available afford luxury 5-mm max Im already gearing up use RC large C D Gas AMA contest models. have pretty good idea am going lash up emergenct DI lost too large models Taft Imjust going go through traumatic moment anymore. see model go OOS overhead would take flip lever pop up stab heck max trophy want model back So disqualify flight Ive Continued page 96 ly tsose completed kdS P-47 Military Scale $180 INCLUDES Top Flight P-47 kit Rhom retracts Aerosport 6 channel radio 5 servos Fox Eagle 60 engine J-3 CUB Quarter Scale $227 INCLUDESBud Nosen 1/4 scale J-3 Cub kit Kratt 4 channel radio rvos Quadra engine mount & props $212 Super Hustler engine SUPER KAOS Fast & Fun $185 INCLUDES Bridi Super Kaos kit Proline 5 channel radio 4 servos DX Max 60 engine $205 Rhom retracts items shown plus HUNDREDS others individualy offered sale recent issues Hobby Swap News model en thusiasts Used Equipmenf Guide BuySell-Trade first ad free 50 words max subscription $10/yr 10 issues $19/2yr $27/3yr Add $3/yr 1st class mail Canada & Mexico must use 1st class rates other countries write first MC & Visa Accepted include numbers expiration date Expect 4 8 weeks delivery 1st issue address changes Submit free ad B&W photo $2 extra subscription orders Hobby Swap News Dept AR-3 PO Box 834 Santa Maria CA 93456 LOWERiNG THE COST OF HAVING FUN May 198291
Edition: Model Aviation - 1982/05
Page Numbers: 12, 14, 91
Sateig Cmwsl list An RC flier electro cuted Dangers seen winding Rubber models con trol RC frequencies flying field 0 John Preston WE START months column somber note Sunday January 3 19-year-old RC Sailplane flier Lakewood CA electrocuted after climbed up utility pole supporting power line retrieve model become entangled wires number readers sent us newspaper clippings reported incident through Associated Press news release detailed account appeared Long Beach Press-Telegram ran story front page column has reported previous electrocu don deaths associated model flying caused Control Line model its control lines either struck came close proximity overhead power lines Lakewood incident first weve heard concerned modeler climbing utility pole retrieve model Whether fly CL RC FF models urge never attempt retrieve entangled model yourself Both telephone power companies will respond call assistance though may take longer arrive may like no model worth risk life Photographs accompanied newspaper ar ticles concerning needless death showed utility pole crossbar supporting lines both wooden together very small insulators attaching lines crossbar causes us wonder perhaps victim assumed lines telephone wires rather high voltage 2330 V power lines site incident Bluff Park apparently favorite among Slope Soaring enthusiasts area However time happened regular fliers park because light winds producing marginal slope lift Presumably experienced fliers well aware hazard presented overhead power lines since quoted newspaper saying Im sure regular fliers would have no way victim would have allowed go up pole Another flier states usually just throw something get down Normally rocks work best occasional shake pole Usually just hanging up few threads doubt power company would appre ciate having rocks thrown lines poles As previously stated encourage anyone experiencing model entanglement overhead lines call utility company immediately Never under circumstances attempt climb utility pole ladder attempt release entangled model yourself record victim AMA member however accounts experienced modeler rather beginner hope relating account death future incident type can averted letter during January George Batiuk Sr well known Free Flight modeler Huntsville AL Prior receiving Georges letter would have expressed much scepticism Peanut Scale model could cause bodily injury Maybe following account George will give some appreciation energy can stored piece twisted rubber have reading Safety Comes First column since its inception have benefited discussion did involve areas interest areas flying Rubber-Powered models Pea nut Mulvihill would think appar ently benign phase hobby could contain potential danger complacent ones toountil woke up observed what going around FF contests What going ever increasing numbers fliers using some form protec tion model winding rubber motor procedure requires some means removing protective device usually some form tube inside fuselage after wind ing motor before hooking up prop means usually employed wire tubing rod sufficient length accept blast tube inside fuselage potential danger arises winding technique wherein wire tubing rod exten sion retained between winder motor during winding process Can imagine destructive power transmitted h-in diameter aluminum rod 42-in longwhich what use Mulvihill still attached 16-strand motor upwards 700 winds motor breaks think extreme case consider incident witnessed Coffee Air foilers annuals Tullahoma TN Peanut being wound small extension rod somewhere order 10-in long 1/3 2in diameter motor broke rod flew down runway rebounding high enough strike flier mouth chipping tooth often does happen ask As inost accidents once enough recipient think might go step further George say Mulvihill Wake field motors once might too muck So Free Flighters enjoy twisted-rubber form energy derive motive power say Careful Another letter received January came Tom Brink lives Kentwood MI Tom member Western Michigan Radio Aircraft Fliers club recently elected office Continued page 14 12 Model Aviation 00 NI CUDDLES DID SILLX OLD ME HAPPEN TO LEAVE TANSMI1TEI LAYING AROUND AT HOME Now Can Watch RIC Helicopter Flying Own Home Club Hobby Store GMP has produced video tape showing aspects R/C Helicopter flying Will See * Beginners buying building ng Crickets flown beginners experts off land water Flying new GMP Hughes 300C Flying new Competitors * The fantastic Hirobo Scale Ranger static flying * The GMP helicopter factory facilitiesmanufacturing product support professionally produced tape full color sound Fixed wing 8 heli flyers say gives goose pimples Stop booth Toledo MACS preview outstanding video tape Send $3000 tape shipping Please specify VHS Beta format decide return tape simply send undamaged R/C Helicopters cassette us UPS w/in 30 days full prompt refund Overseas inquiries please send $4000 nonrefundable State VHS PAL Seacan American VTSC format LM NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI I well FUELyouI New high film strength lubricant N Increased power engine life Highest quality Ingredients IJ Detern~nt action cut varnish I I II II II II II II II II II IHOURS Monday thru Wednesday 9Z3U-3U lhursday b Fnday 93O-6OUI Saturday 930-6 00 Sunday 1200-500 L m ield Safety Officer wonder club has such officer should give some thought very least field committee chairmanthe guy responsible getting grass mowedshould charged task ensuring safe operations field Anyway back Toms letter Among other things Tom asked us ideas workable frequency control system RC flying field responding Toms letter thought might some readers column belong clubs already using system think will have used granted use additional RC frequencies FCC hope FCC proposal will have appeared Federal Register time read present time appears universal frequency control system use RC clubs clothespin system board box pit area flying field contains clothespins color-coded and/or marked specific RC frequency values dont turn transmitter unless have obtained pin designating particular fre quency Both clubs belong use system worksprovided members remember never turn unless have pin Most time remember like anything else dependent its success human input occasionally lapse memory occurs RC model reduced rubble dont know frequency control system infallible degree human error impossible anyone knows such system wed appreciate letter opinion two basic problems commonly used clothespin system first problem occurs go get clothespin frequency its missing board box check pilots field may determine nobody else has equip ment frequency safe say last guy fly frequency previous day went home pin still antenna usually case pin missing reason Field Committee Chairman Field Safety Officer very often carries some blank pins him serve replacements lost ones could however another reason pin frequency missing Suppose just before arrived field someone using frequency lost control model some reason went down behind trees far side field flier may have gone galloping off boondocks carrying transmitter him Weve seen happen occasions Usually other fliers will alert fact dont count So missing pins could result frequency conflict urge check carefully before assuming went home still clipped someones antenna Another shortcoming clothespin system occurs lot fliers field can inconvenience say least Lets assume youve flown during past 30 minutes because youve helping beginner get engine idle reliably Now want bore some holes sky latest creation has frequency clothespin Its board pilots flight line displaying antenna flags denoting frequencys color code Now have make systematic search through pit area asking everyone have orange white theory shouldnt happen cause yours organized club transContinued page 91 14 Model Aviation Safety Preston Continued page 14 mitters immediately returned impound after use dont permit guys diddle engines pit area have special area Right search pin should take couple seconds fellow fliers follow rules elusive pin seek could use someone process adjusting control throwsor whatever way solve whos got pin problem have pit area subdivided according frequency know number clubs have adopted approach feel definite plus minimizing accidental shoot-downs due human error find very reassuring flying such field can see-at-a-glance other users ones frequency Its also safety benefit have transmitter impound area coded frequency becomes simple task run ones eyes over transmitters ones own frequency check turned off Maybe trans mitter left its switch its antenna collapsed wouldnt radiate enough power cause interference Wed rather take chance this dialogue leading up frequency control system think will appropriate going successfully control use some 50 RC frequencies Perhaps AMA Frequency Committee already has system figured out wed like hear about details frequency control system have mind board rack tray some such thing would prominently displayed pit area close transmitter impound club member wishing fly would place personal frequency marker board before turning transmitter current RC frequencies persons marker would color-coded frequency would contain name Anyone else wishing fly frequency would easily see presence color-coded marker already use name marker using person could seen flight line could quickly check presence pits see really preparing flyor just forgot left marker board after last flight know some clubs already using some variation system wed appreci ate some information about its success permission granted FCC use additional frequencies understand current color-code method frequency identification will replaced channel num bers colored background add number new frequencies existing 72 MHz 6-meter frequencies arrive large number under commonly used old clothespin system frequency identity could quite nightmare Somebody club might have full-time job just replacing missing clothespins think system requires flier provide own frequency marker superior could some problems effect ing orderly changeover new system dont think would insurmountable have asked what happens under new system member arrives club field fly find left marker home response has another question What happens flier arrives field finds has left transmitter home answer simple go nearest telephone booth call wife brings missing item Out field Right Any comments suggested frequency control system would appreciated especially clubs already using similar system Have safe month John Preston 7012 Ehira Cour4 Falls Church VA 22042 Fun/Winter Continued page 22 gives security fly FF security thing must foreswear am sure can see obvious flaw defining model servos aboard basis infrequently controls utilized modeler FFer basis much time elapses between picking up trans mitter its next use draw line finition followed its logical conclusion would state model RC CL Free Flight moment controls moving modeler FFer moment does cause controls operated. entials have legitimizing effect what say So define FF FFers ways make terms null void concerns case referring model FF criteria original FF design legitimate install RC gear Joe reasons because modeler does have know trim strictly FF model quite few people fly RC SAM events have never attempted trim FF dont know aerodynamics involved FF work cer tainly could fly model took RC gear Out. am Ito accept somehow model RC gear controlling surfaces really FF sets transmitter ground irrespective fact cant trim FF simply because original design flown FF Am Ito accept modelers truly FFers simply because design flying stable enough continue circling control inputs cant sell bill goods FF isnt cheap Conversely just because instance FFer models fly look like FF models cannot change fact now RC modeler Just example above model does have power make its owner FFer neither does ability knowledge skill FFer confer model fly FF model status None reasons calling RC model RC FF will hold drop water FF RC unmixable like oil water cannot change no matter emotion ally dependent identifying models yourself FF have given up FF very reasonable reasons What will hurt admit Growing older nothing ashamed hope some day Ralph Prey editor Satellite San Valeers FF Club As using RC 8-ft Korda think FF has got thinking about using RC just arent FF fields available afford luxury 5-mm max Im already gearing up use RC large C D Gas AMA contest models. have pretty good idea am going lash up emergenct DI lost too large models Taft Imjust going go through traumatic moment anymore. see model go OOS overhead would take flip lever pop up stab heck max trophy want model back So disqualify flight Ive Continued page 96 ly tsose completed kdS P-47 Military Scale $180 INCLUDES Top Flight P-47 kit Rhom retracts Aerosport 6 channel radio 5 servos Fox Eagle 60 engine J-3 CUB Quarter Scale $227 INCLUDESBud Nosen 1/4 scale J-3 Cub kit Kratt 4 channel radio rvos Quadra engine mount & props $212 Super Hustler engine SUPER KAOS Fast & Fun $185 INCLUDES Bridi Super Kaos kit Proline 5 channel radio 4 servos DX Max 60 engine $205 Rhom retracts items shown plus HUNDREDS others individualy offered sale recent issues Hobby Swap News model en thusiasts Used Equipmenf Guide BuySell-Trade first ad free 50 words max subscription $10/yr 10 issues $19/2yr $27/3yr Add $3/yr 1st class mail Canada & Mexico must use 1st class rates other countries write first MC & Visa Accepted include numbers expiration date Expect 4 8 weeks delivery 1st issue address changes Submit free ad B&W photo $2 extra subscription orders Hobby Swap News Dept AR-3 PO Box 834 Santa Maria CA 93456 LOWERiNG THE COST OF HAVING FUN May 198291
Edition: Model Aviation - 1982/05
Page Numbers: 12, 14, 91
Sateig Cmwsl list An RC flier electro cuted Dangers seen winding Rubber models con trol RC frequencies flying field 0 John Preston WE START months column somber note Sunday January 3 19-year-old RC Sailplane flier Lakewood CA electrocuted after climbed up utility pole supporting power line retrieve model become entangled wires number readers sent us newspaper clippings reported incident through Associated Press news release detailed account appeared Long Beach Press-Telegram ran story front page column has reported previous electrocu don deaths associated model flying caused Control Line model its control lines either struck came close proximity overhead power lines Lakewood incident first weve heard concerned modeler climbing utility pole retrieve model Whether fly CL RC FF models urge never attempt retrieve entangled model yourself Both telephone power companies will respond call assistance though may take longer arrive may like no model worth risk life Photographs accompanied newspaper ar ticles concerning needless death showed utility pole crossbar supporting lines both wooden together very small insulators attaching lines crossbar causes us wonder perhaps victim assumed lines telephone wires rather high voltage 2330 V power lines site incident Bluff Park apparently favorite among Slope Soaring enthusiasts area However time happened regular fliers park because light winds producing marginal slope lift Presumably experienced fliers well aware hazard presented overhead power lines since quoted newspaper saying Im sure regular fliers would have no way victim would have allowed go up pole Another flier states usually just throw something get down Normally rocks work best occasional shake pole Usually just hanging up few threads doubt power company would appre ciate having rocks thrown lines poles As previously stated encourage anyone experiencing model entanglement overhead lines call utility company immediately Never under circumstances attempt climb utility pole ladder attempt release entangled model yourself record victim AMA member however accounts experienced modeler rather beginner hope relating account death future incident type can averted letter during January George Batiuk Sr well known Free Flight modeler Huntsville AL Prior receiving Georges letter would have expressed much scepticism Peanut Scale model could cause bodily injury Maybe following account George will give some appreciation energy can stored piece twisted rubber have reading Safety Comes First column since its inception have benefited discussion did involve areas interest areas flying Rubber-Powered models Pea nut Mulvihill would think appar ently benign phase hobby could contain potential danger complacent ones toountil woke up observed what going around FF contests What going ever increasing numbers fliers using some form protec tion model winding rubber motor procedure requires some means removing protective device usually some form tube inside fuselage after wind ing motor before hooking up prop means usually employed wire tubing rod sufficient length accept blast tube inside fuselage potential danger arises winding technique wherein wire tubing rod exten sion retained between winder motor during winding process Can imagine destructive power transmitted h-in diameter aluminum rod 42-in longwhich what use Mulvihill still attached 16-strand motor upwards 700 winds motor breaks think extreme case consider incident witnessed Coffee Air foilers annuals Tullahoma TN Peanut being wound small extension rod somewhere order 10-in long 1/3 2in diameter motor broke rod flew down runway rebounding high enough strike flier mouth chipping tooth often does happen ask As inost accidents once enough recipient think might go step further George say Mulvihill Wake field motors once might too muck So Free Flighters enjoy twisted-rubber form energy derive motive power say Careful Another letter received January came Tom Brink lives Kentwood MI Tom member Western Michigan Radio Aircraft Fliers club recently elected office Continued page 14 12 Model Aviation 00 NI CUDDLES DID SILLX OLD ME HAPPEN TO LEAVE TANSMI1TEI LAYING AROUND AT HOME Now Can Watch RIC Helicopter Flying Own Home Club Hobby Store GMP has produced video tape showing aspects R/C Helicopter flying Will See * Beginners buying building ng Crickets flown beginners experts off land water Flying new GMP Hughes 300C Flying new Competitors * The fantastic Hirobo Scale Ranger static flying * The GMP helicopter factory facilitiesmanufacturing product support professionally produced tape full color sound Fixed wing 8 heli flyers say gives goose pimples Stop booth Toledo MACS preview outstanding video tape Send $3000 tape shipping Please specify VHS Beta format decide return tape simply send undamaged R/C Helicopters cassette us UPS w/in 30 days full prompt refund Overseas inquiries please send $4000 nonrefundable State VHS PAL Seacan American VTSC format LM NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI I well FUELyouI New high film strength lubricant N Increased power engine life Highest quality Ingredients IJ Detern~nt action cut varnish I I II II II II II II II II II IHOURS Monday thru Wednesday 9Z3U-3U lhursday b Fnday 93O-6OUI Saturday 930-6 00 Sunday 1200-500 L m ield Safety Officer wonder club has such officer should give some thought very least field committee chairmanthe guy responsible getting grass mowedshould charged task ensuring safe operations field Anyway back Toms letter Among other things Tom asked us ideas workable frequency control system RC flying field responding Toms letter thought might some readers column belong clubs already using system think will have used granted use additional RC frequencies FCC hope FCC proposal will have appeared Federal Register time read present time appears universal frequency control system use RC clubs clothespin system board box pit area flying field contains clothespins color-coded and/or marked specific RC frequency values dont turn transmitter unless have obtained pin designating particular fre quency Both clubs belong use system worksprovided members remember never turn unless have pin Most time remember like anything else dependent its success human input occasionally lapse memory occurs RC model reduced rubble dont know frequency control system infallible degree human error impossible anyone knows such system wed appreciate letter opinion two basic problems commonly used clothespin system first problem occurs go get clothespin frequency its missing board box check pilots field may determine nobody else has equip ment frequency safe say last guy fly frequency previous day went home pin still antenna usually case pin missing reason Field Committee Chairman Field Safety Officer very often carries some blank pins him serve replacements lost ones could however another reason pin frequency missing Suppose just before arrived field someone using frequency lost control model some reason went down behind trees far side field flier may have gone galloping off boondocks carrying transmitter him Weve seen happen occasions Usually other fliers will alert fact dont count So missing pins could result frequency conflict urge check carefully before assuming went home still clipped someones antenna Another shortcoming clothespin system occurs lot fliers field can inconvenience say least Lets assume youve flown during past 30 minutes because youve helping beginner get engine idle reliably Now want bore some holes sky latest creation has frequency clothespin Its board pilots flight line displaying antenna flags denoting frequencys color code Now have make systematic search through pit area asking everyone have orange white theory shouldnt happen cause yours organized club transContinued page 91 14 Model Aviation Safety Preston Continued page 14 mitters immediately returned impound after use dont permit guys diddle engines pit area have special area Right search pin should take couple seconds fellow fliers follow rules elusive pin seek could use someone process adjusting control throwsor whatever way solve whos got pin problem have pit area subdivided according frequency know number clubs have adopted approach feel definite plus minimizing accidental shoot-downs due human error find very reassuring flying such field can see-at-a-glance other users ones frequency Its also safety benefit have transmitter impound area coded frequency becomes simple task run ones eyes over transmitters ones own frequency check turned off Maybe trans mitter left its switch its antenna collapsed wouldnt radiate enough power cause interference Wed rather take chance this dialogue leading up frequency control system think will appropriate going successfully control use some 50 RC frequencies Perhaps AMA Frequency Committee already has system figured out wed like hear about details frequency control system have mind board rack tray some such thing would prominently displayed pit area close transmitter impound club member wishing fly would place personal frequency marker board before turning transmitter current RC frequencies persons marker would color-coded frequency would contain name Anyone else wishing fly frequency would easily see presence color-coded marker already use name marker using person could seen flight line could quickly check presence pits see really preparing flyor just forgot left marker board after last flight know some clubs already using some variation system wed appreci ate some information about its success permission granted FCC use additional frequencies understand current color-code method frequency identification will replaced channel num bers colored background add number new frequencies existing 72 MHz 6-meter frequencies arrive large number under commonly used old clothespin system frequency identity could quite nightmare Somebody club might have full-time job just replacing missing clothespins think system requires flier provide own frequency marker superior could some problems effect ing orderly changeover new system dont think would insurmountable have asked what happens under new system member arrives club field fly find left marker home response has another question What happens flier arrives field finds has left transmitter home answer simple go nearest telephone booth call wife brings missing item Out field Right Any comments suggested frequency control system would appreciated especially clubs already using similar system Have safe month John Preston 7012 Ehira Cour4 Falls Church VA 22042 Fun/Winter Continued page 22 gives security fly FF security thing must foreswear am sure can see obvious flaw defining model servos aboard basis infrequently controls utilized modeler FFer basis much time elapses between picking up trans mitter its next use draw line finition followed its logical conclusion would state model RC CL Free Flight moment controls moving modeler FFer moment does cause controls operated. entials have legitimizing effect what say So define FF FFers ways make terms null void concerns case referring model FF criteria original FF design legitimate install RC gear Joe reasons because modeler does have know trim strictly FF model quite few people fly RC SAM events have never attempted trim FF dont know aerodynamics involved FF work cer tainly could fly model took RC gear Out. am Ito accept somehow model RC gear controlling surfaces really FF sets transmitter ground irrespective fact cant trim FF simply because original design flown FF Am Ito accept modelers truly FFers simply because design flying stable enough continue circling control inputs cant sell bill goods FF isnt cheap Conversely just because instance FFer models fly look like FF models cannot change fact now RC modeler Just example above model does have power make its owner FFer neither does ability knowledge skill FFer confer model fly FF model status None reasons calling RC model RC FF will hold drop water FF RC unmixable like oil water cannot change no matter emotion ally dependent identifying models yourself FF have given up FF very reasonable reasons What will hurt admit Growing older nothing ashamed hope some day Ralph Prey editor Satellite San Valeers FF Club As using RC 8-ft Korda think FF has got thinking about using RC just arent FF fields available afford luxury 5-mm max Im already gearing up use RC large C D Gas AMA contest models. have pretty good idea am going lash up emergenct DI lost too large models Taft Imjust going go through traumatic moment anymore. see model go OOS overhead would take flip lever pop up stab heck max trophy want model back So disqualify flight Ive Continued page 96 ly tsose completed kdS P-47 Military Scale $180 INCLUDES Top Flight P-47 kit Rhom retracts Aerosport 6 channel radio 5 servos Fox Eagle 60 engine J-3 CUB Quarter Scale $227 INCLUDESBud Nosen 1/4 scale J-3 Cub kit Kratt 4 channel radio rvos Quadra engine mount & props $212 Super Hustler engine SUPER KAOS Fast & Fun $185 INCLUDES Bridi Super Kaos kit Proline 5 channel radio 4 servos DX Max 60 engine $205 Rhom retracts items shown plus HUNDREDS others individualy offered sale recent issues Hobby Swap News model en thusiasts Used Equipmenf Guide BuySell-Trade first ad free 50 words max subscription $10/yr 10 issues $19/2yr $27/3yr Add $3/yr 1st class mail Canada & Mexico must use 1st class rates other countries write first MC & Visa Accepted include numbers expiration date Expect 4 8 weeks delivery 1st issue address changes Submit free ad B&W photo $2 extra subscription orders Hobby Swap News Dept AR-3 PO Box 834 Santa Maria CA 93456 LOWERiNG THE COST OF HAVING FUN May 198291