RADIO CONTROL ELECTRICS FLASH late-breaking addition 93 KRC Electric Flyfor early arrivals will night fly hosted SEFLI Silent Electric Flyers Long Island cooperation KRC Friday Septem ber 17 beginning dark SEFLIs Larry Sribnick SR Batteries will coordinate Light up Electrics way can no fire please join pre-event event References Nytique column December 1988 Illuminous May 1989 Dallas Electric Aircraft Fliers DEAF Seventh Annual Electric Fly-In will held October 2-3 Dallas area according meet CD Frank Korman will two days fun flying fun events AMA events plus Texas barbecue Tex-Mex supper interest warrants will plenty prizes awards go around addition meet combined Gulf States Electric Fly-In October 23-24 New Orleans announced column last month meet combination forms Astro Flight Southern Electric Champion ships special awards top pointgetters can get full info Frank Korman 5834 Goodwin Dallas TX 75206-6106 Tel 214 821-0393 after 5 pm weekends sure check last column information other half meet combination April 93 column included nowominous comment page 164 Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now dont know its just coincidence words wrote somehow premonitory its happened meand Electri-flying club friendsand also affects years club KRC wet dry club has use relatively noise-safe industrial-site field company/owner failed financially back lost use location However about year also developing using additional site loss original end world site lost activity increased other location until finally neighborhood reacted wet noise saturation otherwisepeaceful country setting totally candid dont blame folks live nearby needs anyway ELW Motor56 Di Ri Top View PC lands x-ray visionl Ri 47 Kohm 1/4 W PC board cut RS 276 170 - motor battery motor battery 7 CE Di rnhn Oi SS . .0 RS 276- 2027 - receiver battery i-f-i -R2 -56 ohm 1i4W Red LED RS 276 041 [long lead ] * Added part D11NH914 Equiv RS 276-1122 Heat sink Tip 42 equiv 0 NOTE REVISED WIRE LOCATION iver battery Revised Charge Cord Top View Pictorial Diode added charge cord June column visible tip pointer Fits REVOLTs twins externally existing board pattern Only wire have different power setups Text has output pair relocated original details wide range flight testing configuration October 1993 61 Months Topics 1 Meet Announcement 2 Premonition 3 Computerized Data Acquisition 4 Charge Cord Followup 5 REVOLT REVOLT framework weighs 176 oz complete landing gear wheels Astro 40 geared easily housed Covered weight radio less REVOLTIs motor compartment Mounting Electric components 273 oz D-tube LE system accomodates enormous range 1/16 sheet fuselage sides motor sizes Mounting plate custom fit Master Airscrew geared motor Plate mounts bearers fuselage Individual motor plates V blocks can accomodate motors sizes prop hub still center cowl Fortunately field totally lost flying has dramatically curtailed no flying kind after 730 pm practical purposes its summer mostly lost meand sense tooas follows During winter developed rather ambitious plan involved lot test flying gather performance data vanous sorts info fully intended share upcoming columns Beyond intentions have several new products flight test report about theres telemetry ideal talked about previous column some new speedcontrol circuit ideas could just pos sibly represent mini-breakthough sorts want try out share opportunity expedient fashion lost simply just enough flight time available now best will take vastly longer ie just year So lose lose Because wet power noise course KRC now seeking some other field opportunity believe success could take long time see around very little left resembles open ground housing right up against sure kill wet flying seems associated quiet flying well can see not-too-distant day will no wet flying anywhere around herecounty after county Does mean no flying kind well know.guilt association can tell Im extremely upset association aspect personally enjoyed wet-power RC over quarter century have friends still prefer havent touched stuff nearly 15 years Electric quiet power future modeldom have survive now get later Whats needed locally other places Electric-exclusive club club affiliate hope keeping field change Ive never heard field loss due quiet So much soapbox month Please note previous story no way affects upcoming 93 KRC Electric Fly Thats entirely different borrowed non-KRC field miles away July column included photo computerized data-collection system August column yet out write will have contained some printed output photo caught interest several readers very quickly called wrote seeking information setup everyone technical design details setup supplied friend Phil Thayer 62 Model Aviation htec speed control company result casual conversation about year ago expressed interest such idea Phil turned out already done same thing Anyway Phil graciously supplied schematic certain critical items microporcessor EEprom software got other parts did assembly piece Radio Shack holeboard flew right off bench box battery-powered fourchannel 10-bit A/D 50 volt reference RS 232 link serial port PC curse words software written BASIC easily modified variety tasks including graphic data up four parameters time fact Phil used plot motor rpm voltage current thrust once Anyway display graphs easily scaled including vertical volts horizontal time axes design works absolutely great have lots ideas future modeling applications column contents Indeed simply cant thank Phil enough help Im totally delighted have resource recently Phil persuaded roundabout way design produce professional printed-circuit board circuit major improvement over relatively intense point-to-point hard wiring holeboard As stands now Phil/Flightec will make product suitable software available future fact tells will have up running laptop computer years KRC know technically inclined folks would experience added enjoyment present Electric pursuits item June column discussed how-to most-used Electric accessories charge cord simple elec tronic assembly allows charging radio battery leftover charge motor battery presently have three cords routine use just got parts make several Right now have 11 fully equipped operational Electrics would ordinarily radio-charging nightmare charge cord makes sweet dreams Anyway Ive made minor design improvement charge cord costs few pennies takes few minutes incorporate existing assemblies Im presenting now recommenda tion incorporate might routinely hook up charge cord forget extended periods ie days something oftena logistic necessity will Heres story sug gestion dig out original article refresher before continue As per reference column charge cord uses leftover motor-battery charge supply regulated charge current receiver battery will run long charge available ie until motor battery runs down course receiver battery charging will cease Beyond point however Ive recently discovered tiny current about 600 microamperes will begin drainfrom receiver battery charged 250 mA pack will itself drain about 17 days Ive never problems possible obviously counterproductive operation real troublemaker So heres what about comparing reference article schematic pictorial photos below will notice addition diode positive output wire diode eliminates above condition Ive added charge cords retrofit very easy makes use existing holes lands existing circuit board assembly suggest incorporate upgrade enjoy own charge cord happily ever after September issue included some description flight information then-unnamed new Electric Well its no longer nameless its now REVOLT Ive built flown two have few under construction latest planes basically identical prototype shown last month minor structural tweeks some Tell Control Horn Go Wont Get Bent Out Shape Eve airplane enthusiast know has same problems control horns flex bend break-what else new Introducing Sullivan 555 toughest control horn ever made Cr~with tempered steel instead plastic nickelplated wear resistance Sullivan Control Horn 555 built exacting specifications eliminate flex flutter Better still comes complete glass-filled nylon bushing prevent metal-to-metal contact radio interference sized fit either devises Sullivans New Ball Joint System easy off-axis movement CpJJjjiii Sullivan 555 Finally control horn PRODUCTS thats made right stuff PD Box5166 Baltimore MD 21224 Getting Better Ideas Off Ground October 1993 63 added depth nose section modification necessary because prototype proved whelming success REVOLT originally intended flown over range power systems geared cobalt OSs iSs up directdrive 25s 40sand nothing else associated batteries would consist seven 18 cells would room left over shift packs aid center gravity CG location First flights made with geared 05 7 cells surely would worst-case condition started short plane flew great leaped off grass runway proceeded upward adverse weather conditons Due revolutionary affect new Snake Oil Lubricants Power Rev hvina RIO engines model ers mak ing Secret Weapon Power Rev will quickly transform R/C engine faster smoother powerful efficient powerplant special SP-1O lubricant formula Power Rev RIG Fuel Treatment RIG Engine Treatment RIG 2-Cycle Oil secret effects posi tive change surface metal internal engine parts electro-chemical conditioning causes oarts immediately drew very favorable comment flight line So impressive handling im mediately added another seven cells paral lel weight hit say least overweight variation required longer take off run also flew very well again drew very favorable reaction flight line because its extended flight time exciting success out way tried power systems over range intent case REVOLT flew just great got sorta greedy What about other power systems outside intended range As may recall September column tried direct-drive Thrustmaster repellent WITH other helps eliminate friction results phenomenal Power Rev R/C Fuel Treatment stabilizes Kygenates tel jent com iusuon yen longer unning times nd regular atment wer Rev Engine Ireatment will guard engine wear lubricates protects internal engine parts big names RIG using Snake Oil lubricants now swear So notice bottle Power Rev hidden buddies field box youll know hasnt told about it. thats secret weapon LLiz ICANTS After increased speeds tnyAvailable ar i-tic Outlets NationwideAfter tO years experience Aggresssr achieved fuse SnakeExclusively Manufactured Distributed byducted fan engines nothing cornOil Lubricants treat P/CRobart Mfg Inc StChartes IL 708-584-7616pares pedsrrnance gained equipment--David Ribbe ____1mm using Power Rev Additives MADE IN uSA ______ lons 5OBART ers--Dennis Crooks Power Rev PlC Engine Treatment SO-Of r Rev P/C Fuel Treatment- SO-02 r Rev P/C 2-Cycle Oil SO-06 geared Master Airscrewboth economy motors flown seven-cell pack two parallel REVOLT continued perform unceasing delight myself flight line folks paying surprising amount attention what happeningand requesting plans Having successfully extended power system range downward include some economy motors began think upward Natural candidates included geared cobalt 25s 40s hut larger wouldnt fit original reason modifying nose latest REVOLTs fact Ive recently flown several flights geared 40 21 cellsnearly six pounds all-up almost twice weight lightest systems Results REVOLT flies absolutely great way too last flight 19 minutes long included taxi takeoff touch-and-goes loops cruisin bursts high-rate climb mean high some power-off glide time photos shows pair REVOLTs have similar appearance have internal differences powered Master Airscrew 251 seven l2Ah cells turning 11 x 6 prop weight 53 ounces other has geared Astro cobalt 40 211 4Ah cells turning 11 x 8 prop model weighs 95 ounces Both models use Jomar 5M4 ACE guidance have 600-square-inch wings using 125% high-lift flat-bottom airfoil Folks REVOLT.really REVOLT has lots Vintage design influence very easy stable flyer well suited use trainer power systems tried Deliberate stalls gentle shallow deliberate left right spirals smooth out sticks released power-off flight rather remarkable low-sink glide guess could generalize say REVOLT simply everything except aerobatic intended anyway Also part original intent plane in-flight experiments data accumulation Ive got lots ideas plans three REVOLTS youll seeing future columns Finally feel REVOLT represents unique design flight experience defies conventional wisdom about Electric power system description affords unique opportunity adjust Electric perspective Simply stated frontal assualt motor plane syndrome mocks contempory motor nomenclature nonsense truthful simply dont know anyone has done same sort thing before maybe its truly unique doesnt really matter What matters story has now presented think can gain Ive always firm believer build light everywhere strong needed REVOLT demonstrates benefits 64 Model Aviation loctricslKopski Continued page 64 approach question light aspect reason can fly well lower-power installations strong part permits carry heaviest stuff So now just imagine same plane flying well economy can motor seven cells massive power installation geared cobalt 40 21 cells Its plane motor syndrome Imagine Okay. can anyone guess what toughest part design landing gear Consider must light low-power end strong heaviest installations compromised gear double 1/ inch-wire struts could made lighter lower end stronger other extremean argument customized landing gear over power system range Maybe Ill try sometime So much column Please include SASE correspondence youd like reply Happy Quiet Safe Electric Landings Everyone ng FunlMathews Continued page 46 Wasp photos show McCoy 049 diesel span3 1 inches chord4 inches finish AeroGloss dope flight path left under power right glide Now slightly enlarged version Perry Eaton Kenai Alaska spans 90 inches powered OS 61 fourstroke addition radio control assures flight will like Keith Laumer described Additionally Paul Denson designed published double-sized version Laumer design calling Twin Lizzie OMT MAN April 1978 version three channels RC 20-cubicinch power plant Im reasonably sure full-size plans either version available MAN Certainly looks like flying fun JMunn Continued page 43 edge neatly uniform application thickened dope/cement mixture Allow patch set few minutes pull silk taut along other trimmed edge 90 angle first Keeping silk damp pull taut other two directions adhere around edges Allow surplus material remain place minute two place new razor blade vertically about 3/is inch patched opening pull silk edge up against blade cutting material along length blade Move blade farther along edge repeat process until edges neatly trimmed Any stray strands loose spots can tacked down dope After patch has thoroughly dried apply medium-thick coat dope flipping surface over back few times achieve good fill coat apply several coats thinned dope Later can sand area lightly especially around edges add few coats dope over newly covered area before applying final finish coat sure apply enough coats dope Well-finished silk can last years especially some form plasticizer has added dope prevent overtautening few drops castor oil used plasticizer earlier years modem nontautening dopes contain advanced chemicals Once have mastered technique covering models silk youll have unparalleled satisfaction handiwork * 0 FThaliy An Engine Mount stern Wont Shake Rattle Roll fly model planes dont have tell theres whole lotta shakin goin now theres something can about Sullivan Flex Mount System Its engine mounting sys tem has specially designed rubber isolators absorb engine vibration reduce noise anct limit wear tear modeL thats Flex-Mount comes aluminum adaptor plate makes easy mount 40 60 90 two-cycle engines firewall strap mount beam mounting four-cycle engines So dont jitterbug Thik dealer Sullivan Flex-Mount engine mount U ing system thought rock roll F PRODUCTS wouLd never dieP0 BOx5166BaltimoreMD21224 Getting Better Ideas Off Ground October 1993 65
Edition: Model Aviation - 1993/10
Page Numbers: 61, 62, 63, 64, 65
RADIO CONTROL ELECTRICS FLASH late-breaking addition 93 KRC Electric Flyfor early arrivals will night fly hosted SEFLI Silent Electric Flyers Long Island cooperation KRC Friday Septem ber 17 beginning dark SEFLIs Larry Sribnick SR Batteries will coordinate Light up Electrics way can no fire please join pre-event event References Nytique column December 1988 Illuminous May 1989 Dallas Electric Aircraft Fliers DEAF Seventh Annual Electric Fly-In will held October 2-3 Dallas area according meet CD Frank Korman will two days fun flying fun events AMA events plus Texas barbecue Tex-Mex supper interest warrants will plenty prizes awards go around addition meet combined Gulf States Electric Fly-In October 23-24 New Orleans announced column last month meet combination forms Astro Flight Southern Electric Champion ships special awards top pointgetters can get full info Frank Korman 5834 Goodwin Dallas TX 75206-6106 Tel 214 821-0393 after 5 pm weekends sure check last column information other half meet combination April 93 column included nowominous comment page 164 Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now dont know its just coincidence words wrote somehow premonitory its happened meand Electri-flying club friendsand also affects years club KRC wet dry club has use relatively noise-safe industrial-site field company/owner failed financially back lost use location However about year also developing using additional site loss original end world site lost activity increased other location until finally neighborhood reacted wet noise saturation otherwisepeaceful country setting totally candid dont blame folks live nearby needs anyway ELW Motor56 Di Ri Top View PC lands x-ray visionl Ri 47 Kohm 1/4 W PC board cut RS 276 170 - motor battery motor battery 7 CE Di rnhn Oi SS . .0 RS 276- 2027 - receiver battery i-f-i -R2 -56 ohm 1i4W Red LED RS 276 041 [long lead ] * Added part D11NH914 Equiv RS 276-1122 Heat sink Tip 42 equiv 0 NOTE REVISED WIRE LOCATION iver battery Revised Charge Cord Top View Pictorial Diode added charge cord June column visible tip pointer Fits REVOLTs twins externally existing board pattern Only wire have different power setups Text has output pair relocated original details wide range flight testing configuration October 1993 61 Months Topics 1 Meet Announcement 2 Premonition 3 Computerized Data Acquisition 4 Charge Cord Followup 5 REVOLT REVOLT framework weighs 176 oz complete landing gear wheels Astro 40 geared easily housed Covered weight radio less REVOLTIs motor compartment Mounting Electric components 273 oz D-tube LE system accomodates enormous range 1/16 sheet fuselage sides motor sizes Mounting plate custom fit Master Airscrew geared motor Plate mounts bearers fuselage Individual motor plates V blocks can accomodate motors sizes prop hub still center cowl Fortunately field totally lost flying has dramatically curtailed no flying kind after 730 pm practical purposes its summer mostly lost meand sense tooas follows During winter developed rather ambitious plan involved lot test flying gather performance data vanous sorts info fully intended share upcoming columns Beyond intentions have several new products flight test report about theres telemetry ideal talked about previous column some new speedcontrol circuit ideas could just pos sibly represent mini-breakthough sorts want try out share opportunity expedient fashion lost simply just enough flight time available now best will take vastly longer ie just year So lose lose Because wet power noise course KRC now seeking some other field opportunity believe success could take long time see around very little left resembles open ground housing right up against sure kill wet flying seems associated quiet flying well can see not-too-distant day will no wet flying anywhere around herecounty after county Does mean no flying kind well know.guilt association can tell Im extremely upset association aspect personally enjoyed wet-power RC over quarter century have friends still prefer havent touched stuff nearly 15 years Electric quiet power future modeldom have survive now get later Whats needed locally other places Electric-exclusive club club affiliate hope keeping field change Ive never heard field loss due quiet So much soapbox month Please note previous story no way affects upcoming 93 KRC Electric Fly Thats entirely different borrowed non-KRC field miles away July column included photo computerized data-collection system August column yet out write will have contained some printed output photo caught interest several readers very quickly called wrote seeking information setup everyone technical design details setup supplied friend Phil Thayer 62 Model Aviation htec speed control company result casual conversation about year ago expressed interest such idea Phil turned out already done same thing Anyway Phil graciously supplied schematic certain critical items microporcessor EEprom software got other parts did assembly piece Radio Shack holeboard flew right off bench box battery-powered fourchannel 10-bit A/D 50 volt reference RS 232 link serial port PC curse words software written BASIC easily modified variety tasks including graphic data up four parameters time fact Phil used plot motor rpm voltage current thrust once Anyway display graphs easily scaled including vertical volts horizontal time axes design works absolutely great have lots ideas future modeling applications column contents Indeed simply cant thank Phil enough help Im totally delighted have resource recently Phil persuaded roundabout way design produce professional printed-circuit board circuit major improvement over relatively intense point-to-point hard wiring holeboard As stands now Phil/Flightec will make product suitable software available future fact tells will have up running laptop computer years KRC know technically inclined folks would experience added enjoyment present Electric pursuits item June column discussed how-to most-used Electric accessories charge cord simple elec tronic assembly allows charging radio battery leftover charge motor battery presently have three cords routine use just got parts make several Right now have 11 fully equipped operational Electrics would ordinarily radio-charging nightmare charge cord makes sweet dreams Anyway Ive made minor design improvement charge cord costs few pennies takes few minutes incorporate existing assemblies Im presenting now recommenda tion incorporate might routinely hook up charge cord forget extended periods ie days something oftena logistic necessity will Heres story sug gestion dig out original article refresher before continue As per reference column charge cord uses leftover motor-battery charge supply regulated charge current receiver battery will run long charge available ie until motor battery runs down course receiver battery charging will cease Beyond point however Ive recently discovered tiny current about 600 microamperes will begin drainfrom receiver battery charged 250 mA pack will itself drain about 17 days Ive never problems possible obviously counterproductive operation real troublemaker So heres what about comparing reference article schematic pictorial photos below will notice addition diode positive output wire diode eliminates above condition Ive added charge cords retrofit very easy makes use existing holes lands existing circuit board assembly suggest incorporate upgrade enjoy own charge cord happily ever after September issue included some description flight information then-unnamed new Electric Well its no longer nameless its now REVOLT Ive built flown two have few under construction latest planes basically identical prototype shown last month minor structural tweeks some Tell Control Horn Go Wont Get Bent Out Shape Eve airplane enthusiast know has same problems control horns flex bend break-what else new Introducing Sullivan 555 toughest control horn ever made Cr~with tempered steel instead plastic nickelplated wear resistance Sullivan Control Horn 555 built exacting specifications eliminate flex flutter Better still comes complete glass-filled nylon bushing prevent metal-to-metal contact radio interference sized fit either devises Sullivans New Ball Joint System easy off-axis movement CpJJjjiii Sullivan 555 Finally control horn PRODUCTS thats made right stuff PD Box5166 Baltimore MD 21224 Getting Better Ideas Off Ground October 1993 63 added depth nose section modification necessary because prototype proved whelming success REVOLT originally intended flown over range power systems geared cobalt OSs iSs up directdrive 25s 40sand nothing else associated batteries would consist seven 18 cells would room left over shift packs aid center gravity CG location First flights made with geared 05 7 cells surely would worst-case condition started short plane flew great leaped off grass runway proceeded upward adverse weather conditons Due revolutionary affect new Snake Oil Lubricants Power Rev hvina RIO engines model ers mak ing Secret Weapon Power Rev will quickly transform R/C engine faster smoother powerful efficient powerplant special SP-1O lubricant formula Power Rev RIG Fuel Treatment RIG Engine Treatment RIG 2-Cycle Oil secret effects posi tive change surface metal internal engine parts electro-chemical conditioning causes oarts immediately drew very favorable comment flight line So impressive handling im mediately added another seven cells paral lel weight hit say least overweight variation required longer take off run also flew very well again drew very favorable reaction flight line because its extended flight time exciting success out way tried power systems over range intent case REVOLT flew just great got sorta greedy What about other power systems outside intended range As may recall September column tried direct-drive Thrustmaster repellent WITH other helps eliminate friction results phenomenal Power Rev R/C Fuel Treatment stabilizes Kygenates tel jent com iusuon yen longer unning times nd regular atment wer Rev Engine Ireatment will guard engine wear lubricates protects internal engine parts big names RIG using Snake Oil lubricants now swear So notice bottle Power Rev hidden buddies field box youll know hasnt told about it. thats secret weapon LLiz ICANTS After increased speeds tnyAvailable ar i-tic Outlets NationwideAfter tO years experience Aggresssr achieved fuse SnakeExclusively Manufactured Distributed byducted fan engines nothing cornOil Lubricants treat P/CRobart Mfg Inc StChartes IL 708-584-7616pares pedsrrnance gained equipment--David Ribbe ____1mm using Power Rev Additives MADE IN uSA ______ lons 5OBART ers--Dennis Crooks Power Rev PlC Engine Treatment SO-Of r Rev P/C Fuel Treatment- SO-02 r Rev P/C 2-Cycle Oil SO-06 geared Master Airscrewboth economy motors flown seven-cell pack two parallel REVOLT continued perform unceasing delight myself flight line folks paying surprising amount attention what happeningand requesting plans Having successfully extended power system range downward include some economy motors began think upward Natural candidates included geared cobalt 25s 40s hut larger wouldnt fit original reason modifying nose latest REVOLTs fact Ive recently flown several flights geared 40 21 cellsnearly six pounds all-up almost twice weight lightest systems Results REVOLT flies absolutely great way too last flight 19 minutes long included taxi takeoff touch-and-goes loops cruisin bursts high-rate climb mean high some power-off glide time photos shows pair REVOLTs have similar appearance have internal differences powered Master Airscrew 251 seven l2Ah cells turning 11 x 6 prop weight 53 ounces other has geared Astro cobalt 40 211 4Ah cells turning 11 x 8 prop model weighs 95 ounces Both models use Jomar 5M4 ACE guidance have 600-square-inch wings using 125% high-lift flat-bottom airfoil Folks REVOLT.really REVOLT has lots Vintage design influence very easy stable flyer well suited use trainer power systems tried Deliberate stalls gentle shallow deliberate left right spirals smooth out sticks released power-off flight rather remarkable low-sink glide guess could generalize say REVOLT simply everything except aerobatic intended anyway Also part original intent plane in-flight experiments data accumulation Ive got lots ideas plans three REVOLTS youll seeing future columns Finally feel REVOLT represents unique design flight experience defies conventional wisdom about Electric power system description affords unique opportunity adjust Electric perspective Simply stated frontal assualt motor plane syndrome mocks contempory motor nomenclature nonsense truthful simply dont know anyone has done same sort thing before maybe its truly unique doesnt really matter What matters story has now presented think can gain Ive always firm believer build light everywhere strong needed REVOLT demonstrates benefits 64 Model Aviation loctricslKopski Continued page 64 approach question light aspect reason can fly well lower-power installations strong part permits carry heaviest stuff So now just imagine same plane flying well economy can motor seven cells massive power installation geared cobalt 40 21 cells Its plane motor syndrome Imagine Okay. can anyone guess what toughest part design landing gear Consider must light low-power end strong heaviest installations compromised gear double 1/ inch-wire struts could made lighter lower end stronger other extremean argument customized landing gear over power system range Maybe Ill try sometime So much column Please include SASE correspondence youd like reply Happy Quiet Safe Electric Landings Everyone ng FunlMathews Continued page 46 Wasp photos show McCoy 049 diesel span3 1 inches chord4 inches finish AeroGloss dope flight path left under power right glide Now slightly enlarged version Perry Eaton Kenai Alaska spans 90 inches powered OS 61 fourstroke addition radio control assures flight will like Keith Laumer described Additionally Paul Denson designed published double-sized version Laumer design calling Twin Lizzie OMT MAN April 1978 version three channels RC 20-cubicinch power plant Im reasonably sure full-size plans either version available MAN Certainly looks like flying fun JMunn Continued page 43 edge neatly uniform application thickened dope/cement mixture Allow patch set few minutes pull silk taut along other trimmed edge 90 angle first Keeping silk damp pull taut other two directions adhere around edges Allow surplus material remain place minute two place new razor blade vertically about 3/is inch patched opening pull silk edge up against blade cutting material along length blade Move blade farther along edge repeat process until edges neatly trimmed Any stray strands loose spots can tacked down dope After patch has thoroughly dried apply medium-thick coat dope flipping surface over back few times achieve good fill coat apply several coats thinned dope Later can sand area lightly especially around edges add few coats dope over newly covered area before applying final finish coat sure apply enough coats dope Well-finished silk can last years especially some form plasticizer has added dope prevent overtautening few drops castor oil used plasticizer earlier years modem nontautening dopes contain advanced chemicals Once have mastered technique covering models silk youll have unparalleled satisfaction handiwork * 0 FThaliy An Engine Mount stern Wont Shake Rattle Roll fly model planes dont have tell theres whole lotta shakin goin now theres something can about Sullivan Flex Mount System Its engine mounting sys tem has specially designed rubber isolators absorb engine vibration reduce noise anct limit wear tear modeL thats Flex-Mount comes aluminum adaptor plate makes easy mount 40 60 90 two-cycle engines firewall strap mount beam mounting four-cycle engines So dont jitterbug Thik dealer Sullivan Flex-Mount engine mount U ing system thought rock roll F PRODUCTS wouLd never dieP0 BOx5166BaltimoreMD21224 Getting Better Ideas Off Ground October 1993 65
Edition: Model Aviation - 1993/10
Page Numbers: 61, 62, 63, 64, 65
RADIO CONTROL ELECTRICS FLASH late-breaking addition 93 KRC Electric Flyfor early arrivals will night fly hosted SEFLI Silent Electric Flyers Long Island cooperation KRC Friday Septem ber 17 beginning dark SEFLIs Larry Sribnick SR Batteries will coordinate Light up Electrics way can no fire please join pre-event event References Nytique column December 1988 Illuminous May 1989 Dallas Electric Aircraft Fliers DEAF Seventh Annual Electric Fly-In will held October 2-3 Dallas area according meet CD Frank Korman will two days fun flying fun events AMA events plus Texas barbecue Tex-Mex supper interest warrants will plenty prizes awards go around addition meet combined Gulf States Electric Fly-In October 23-24 New Orleans announced column last month meet combination forms Astro Flight Southern Electric Champion ships special awards top pointgetters can get full info Frank Korman 5834 Goodwin Dallas TX 75206-6106 Tel 214 821-0393 after 5 pm weekends sure check last column information other half meet combination April 93 column included nowominous comment page 164 Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now dont know its just coincidence words wrote somehow premonitory its happened meand Electri-flying club friendsand also affects years club KRC wet dry club has use relatively noise-safe industrial-site field company/owner failed financially back lost use location However about year also developing using additional site loss original end world site lost activity increased other location until finally neighborhood reacted wet noise saturation otherwisepeaceful country setting totally candid dont blame folks live nearby needs anyway ELW Motor56 Di Ri Top View PC lands x-ray visionl Ri 47 Kohm 1/4 W PC board cut RS 276 170 - motor battery motor battery 7 CE Di rnhn Oi SS . .0 RS 276- 2027 - receiver battery i-f-i -R2 -56 ohm 1i4W Red LED RS 276 041 [long lead ] * Added part D11NH914 Equiv RS 276-1122 Heat sink Tip 42 equiv 0 NOTE REVISED WIRE LOCATION iver battery Revised Charge Cord Top View Pictorial Diode added charge cord June column visible tip pointer Fits REVOLTs twins externally existing board pattern Only wire have different power setups Text has output pair relocated original details wide range flight testing configuration October 1993 61 Months Topics 1 Meet Announcement 2 Premonition 3 Computerized Data Acquisition 4 Charge Cord Followup 5 REVOLT REVOLT framework weighs 176 oz complete landing gear wheels Astro 40 geared easily housed Covered weight radio less REVOLTIs motor compartment Mounting Electric components 273 oz D-tube LE system accomodates enormous range 1/16 sheet fuselage sides motor sizes Mounting plate custom fit Master Airscrew geared motor Plate mounts bearers fuselage Individual motor plates V blocks can accomodate motors sizes prop hub still center cowl Fortunately field totally lost flying has dramatically curtailed no flying kind after 730 pm practical purposes its summer mostly lost meand sense tooas follows During winter developed rather ambitious plan involved lot test flying gather performance data vanous sorts info fully intended share upcoming columns Beyond intentions have several new products flight test report about theres telemetry ideal talked about previous column some new speedcontrol circuit ideas could just pos sibly represent mini-breakthough sorts want try out share opportunity expedient fashion lost simply just enough flight time available now best will take vastly longer ie just year So lose lose Because wet power noise course KRC now seeking some other field opportunity believe success could take long time see around very little left resembles open ground housing right up against sure kill wet flying seems associated quiet flying well can see not-too-distant day will no wet flying anywhere around herecounty after county Does mean no flying kind well know.guilt association can tell Im extremely upset association aspect personally enjoyed wet-power RC over quarter century have friends still prefer havent touched stuff nearly 15 years Electric quiet power future modeldom have survive now get later Whats needed locally other places Electric-exclusive club club affiliate hope keeping field change Ive never heard field loss due quiet So much soapbox month Please note previous story no way affects upcoming 93 KRC Electric Fly Thats entirely different borrowed non-KRC field miles away July column included photo computerized data-collection system August column yet out write will have contained some printed output photo caught interest several readers very quickly called wrote seeking information setup everyone technical design details setup supplied friend Phil Thayer 62 Model Aviation htec speed control company result casual conversation about year ago expressed interest such idea Phil turned out already done same thing Anyway Phil graciously supplied schematic certain critical items microporcessor EEprom software got other parts did assembly piece Radio Shack holeboard flew right off bench box battery-powered fourchannel 10-bit A/D 50 volt reference RS 232 link serial port PC curse words software written BASIC easily modified variety tasks including graphic data up four parameters time fact Phil used plot motor rpm voltage current thrust once Anyway display graphs easily scaled including vertical volts horizontal time axes design works absolutely great have lots ideas future modeling applications column contents Indeed simply cant thank Phil enough help Im totally delighted have resource recently Phil persuaded roundabout way design produce professional printed-circuit board circuit major improvement over relatively intense point-to-point hard wiring holeboard As stands now Phil/Flightec will make product suitable software available future fact tells will have up running laptop computer years KRC know technically inclined folks would experience added enjoyment present Electric pursuits item June column discussed how-to most-used Electric accessories charge cord simple elec tronic assembly allows charging radio battery leftover charge motor battery presently have three cords routine use just got parts make several Right now have 11 fully equipped operational Electrics would ordinarily radio-charging nightmare charge cord makes sweet dreams Anyway Ive made minor design improvement charge cord costs few pennies takes few minutes incorporate existing assemblies Im presenting now recommenda tion incorporate might routinely hook up charge cord forget extended periods ie days something oftena logistic necessity will Heres story sug gestion dig out original article refresher before continue As per reference column charge cord uses leftover motor-battery charge supply regulated charge current receiver battery will run long charge available ie until motor battery runs down course receiver battery charging will cease Beyond point however Ive recently discovered tiny current about 600 microamperes will begin drainfrom receiver battery charged 250 mA pack will itself drain about 17 days Ive never problems possible obviously counterproductive operation real troublemaker So heres what about comparing reference article schematic pictorial photos below will notice addition diode positive output wire diode eliminates above condition Ive added charge cords retrofit very easy makes use existing holes lands existing circuit board assembly suggest incorporate upgrade enjoy own charge cord happily ever after September issue included some description flight information then-unnamed new Electric Well its no longer nameless its now REVOLT Ive built flown two have few under construction latest planes basically identical prototype shown last month minor structural tweeks some Tell Control Horn Go Wont Get Bent Out Shape Eve airplane enthusiast know has same problems control horns flex bend break-what else new Introducing Sullivan 555 toughest control horn ever made Cr~with tempered steel instead plastic nickelplated wear resistance Sullivan Control Horn 555 built exacting specifications eliminate flex flutter Better still comes complete glass-filled nylon bushing prevent metal-to-metal contact radio interference sized fit either devises Sullivans New Ball Joint System easy off-axis movement CpJJjjiii Sullivan 555 Finally control horn PRODUCTS thats made right stuff PD Box5166 Baltimore MD 21224 Getting Better Ideas Off Ground October 1993 63 added depth nose section modification necessary because prototype proved whelming success REVOLT originally intended flown over range power systems geared cobalt OSs iSs up directdrive 25s 40sand nothing else associated batteries would consist seven 18 cells would room left over shift packs aid center gravity CG location First flights made with geared 05 7 cells surely would worst-case condition started short plane flew great leaped off grass runway proceeded upward adverse weather conditons Due revolutionary affect new Snake Oil Lubricants Power Rev hvina RIO engines model ers mak ing Secret Weapon Power Rev will quickly transform R/C engine faster smoother powerful efficient powerplant special SP-1O lubricant formula Power Rev RIG Fuel Treatment RIG Engine Treatment RIG 2-Cycle Oil secret effects posi tive change surface metal internal engine parts electro-chemical conditioning causes oarts immediately drew very favorable comment flight line So impressive handling im mediately added another seven cells paral lel weight hit say least overweight variation required longer take off run also flew very well again drew very favorable reaction flight line because its extended flight time exciting success out way tried power systems over range intent case REVOLT flew just great got sorta greedy What about other power systems outside intended range As may recall September column tried direct-drive Thrustmaster repellent WITH other helps eliminate friction results phenomenal Power Rev R/C Fuel Treatment stabilizes Kygenates tel jent com iusuon yen longer unning times nd regular atment wer Rev Engine Ireatment will guard engine wear lubricates protects internal engine parts big names RIG using Snake Oil lubricants now swear So notice bottle Power Rev hidden buddies field box youll know hasnt told about it. thats secret weapon LLiz ICANTS After increased speeds tnyAvailable ar i-tic Outlets NationwideAfter tO years experience Aggresssr achieved fuse SnakeExclusively Manufactured Distributed byducted fan engines nothing cornOil Lubricants treat P/CRobart Mfg Inc StChartes IL 708-584-7616pares pedsrrnance gained equipment--David Ribbe ____1mm using Power Rev Additives MADE IN uSA ______ lons 5OBART ers--Dennis Crooks Power Rev PlC Engine Treatment SO-Of r Rev P/C Fuel Treatment- SO-02 r Rev P/C 2-Cycle Oil SO-06 geared Master Airscrewboth economy motors flown seven-cell pack two parallel REVOLT continued perform unceasing delight myself flight line folks paying surprising amount attention what happeningand requesting plans Having successfully extended power system range downward include some economy motors began think upward Natural candidates included geared cobalt 25s 40s hut larger wouldnt fit original reason modifying nose latest REVOLTs fact Ive recently flown several flights geared 40 21 cellsnearly six pounds all-up almost twice weight lightest systems Results REVOLT flies absolutely great way too last flight 19 minutes long included taxi takeoff touch-and-goes loops cruisin bursts high-rate climb mean high some power-off glide time photos shows pair REVOLTs have similar appearance have internal differences powered Master Airscrew 251 seven l2Ah cells turning 11 x 6 prop weight 53 ounces other has geared Astro cobalt 40 211 4Ah cells turning 11 x 8 prop model weighs 95 ounces Both models use Jomar 5M4 ACE guidance have 600-square-inch wings using 125% high-lift flat-bottom airfoil Folks REVOLT.really REVOLT has lots Vintage design influence very easy stable flyer well suited use trainer power systems tried Deliberate stalls gentle shallow deliberate left right spirals smooth out sticks released power-off flight rather remarkable low-sink glide guess could generalize say REVOLT simply everything except aerobatic intended anyway Also part original intent plane in-flight experiments data accumulation Ive got lots ideas plans three REVOLTS youll seeing future columns Finally feel REVOLT represents unique design flight experience defies conventional wisdom about Electric power system description affords unique opportunity adjust Electric perspective Simply stated frontal assualt motor plane syndrome mocks contempory motor nomenclature nonsense truthful simply dont know anyone has done same sort thing before maybe its truly unique doesnt really matter What matters story has now presented think can gain Ive always firm believer build light everywhere strong needed REVOLT demonstrates benefits 64 Model Aviation loctricslKopski Continued page 64 approach question light aspect reason can fly well lower-power installations strong part permits carry heaviest stuff So now just imagine same plane flying well economy can motor seven cells massive power installation geared cobalt 40 21 cells Its plane motor syndrome Imagine Okay. can anyone guess what toughest part design landing gear Consider must light low-power end strong heaviest installations compromised gear double 1/ inch-wire struts could made lighter lower end stronger other extremean argument customized landing gear over power system range Maybe Ill try sometime So much column Please include SASE correspondence youd like reply Happy Quiet Safe Electric Landings Everyone ng FunlMathews Continued page 46 Wasp photos show McCoy 049 diesel span3 1 inches chord4 inches finish AeroGloss dope flight path left under power right glide Now slightly enlarged version Perry Eaton Kenai Alaska spans 90 inches powered OS 61 fourstroke addition radio control assures flight will like Keith Laumer described Additionally Paul Denson designed published double-sized version Laumer design calling Twin Lizzie OMT MAN April 1978 version three channels RC 20-cubicinch power plant Im reasonably sure full-size plans either version available MAN Certainly looks like flying fun JMunn Continued page 43 edge neatly uniform application thickened dope/cement mixture Allow patch set few minutes pull silk taut along other trimmed edge 90 angle first Keeping silk damp pull taut other two directions adhere around edges Allow surplus material remain place minute two place new razor blade vertically about 3/is inch patched opening pull silk edge up against blade cutting material along length blade Move blade farther along edge repeat process until edges neatly trimmed Any stray strands loose spots can tacked down dope After patch has thoroughly dried apply medium-thick coat dope flipping surface over back few times achieve good fill coat apply several coats thinned dope Later can sand area lightly especially around edges add few coats dope over newly covered area before applying final finish coat sure apply enough coats dope Well-finished silk can last years especially some form plasticizer has added dope prevent overtautening few drops castor oil used plasticizer earlier years modem nontautening dopes contain advanced chemicals Once have mastered technique covering models silk youll have unparalleled satisfaction handiwork * 0 FThaliy An Engine Mount stern Wont Shake Rattle Roll fly model planes dont have tell theres whole lotta shakin goin now theres something can about Sullivan Flex Mount System Its engine mounting sys tem has specially designed rubber isolators absorb engine vibration reduce noise anct limit wear tear modeL thats Flex-Mount comes aluminum adaptor plate makes easy mount 40 60 90 two-cycle engines firewall strap mount beam mounting four-cycle engines So dont jitterbug Thik dealer Sullivan Flex-Mount engine mount U ing system thought rock roll F PRODUCTS wouLd never dieP0 BOx5166BaltimoreMD21224 Getting Better Ideas Off Ground October 1993 65
Edition: Model Aviation - 1993/10
Page Numbers: 61, 62, 63, 64, 65
RADIO CONTROL ELECTRICS FLASH late-breaking addition 93 KRC Electric Flyfor early arrivals will night fly hosted SEFLI Silent Electric Flyers Long Island cooperation KRC Friday Septem ber 17 beginning dark SEFLIs Larry Sribnick SR Batteries will coordinate Light up Electrics way can no fire please join pre-event event References Nytique column December 1988 Illuminous May 1989 Dallas Electric Aircraft Fliers DEAF Seventh Annual Electric Fly-In will held October 2-3 Dallas area according meet CD Frank Korman will two days fun flying fun events AMA events plus Texas barbecue Tex-Mex supper interest warrants will plenty prizes awards go around addition meet combined Gulf States Electric Fly-In October 23-24 New Orleans announced column last month meet combination forms Astro Flight Southern Electric Champion ships special awards top pointgetters can get full info Frank Korman 5834 Goodwin Dallas TX 75206-6106 Tel 214 821-0393 after 5 pm weekends sure check last column information other half meet combination April 93 column included nowominous comment page 164 Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now dont know its just coincidence words wrote somehow premonitory its happened meand Electri-flying club friendsand also affects years club KRC wet dry club has use relatively noise-safe industrial-site field company/owner failed financially back lost use location However about year also developing using additional site loss original end world site lost activity increased other location until finally neighborhood reacted wet noise saturation otherwisepeaceful country setting totally candid dont blame folks live nearby needs anyway ELW Motor56 Di Ri Top View PC lands x-ray visionl Ri 47 Kohm 1/4 W PC board cut RS 276 170 - motor battery motor battery 7 CE Di rnhn Oi SS . .0 RS 276- 2027 - receiver battery i-f-i -R2 -56 ohm 1i4W Red LED RS 276 041 [long lead ] * Added part D11NH914 Equiv RS 276-1122 Heat sink Tip 42 equiv 0 NOTE REVISED WIRE LOCATION iver battery Revised Charge Cord Top View Pictorial Diode added charge cord June column visible tip pointer Fits REVOLTs twins externally existing board pattern Only wire have different power setups Text has output pair relocated original details wide range flight testing configuration October 1993 61 Months Topics 1 Meet Announcement 2 Premonition 3 Computerized Data Acquisition 4 Charge Cord Followup 5 REVOLT REVOLT framework weighs 176 oz complete landing gear wheels Astro 40 geared easily housed Covered weight radio less REVOLTIs motor compartment Mounting Electric components 273 oz D-tube LE system accomodates enormous range 1/16 sheet fuselage sides motor sizes Mounting plate custom fit Master Airscrew geared motor Plate mounts bearers fuselage Individual motor plates V blocks can accomodate motors sizes prop hub still center cowl Fortunately field totally lost flying has dramatically curtailed no flying kind after 730 pm practical purposes its summer mostly lost meand sense tooas follows During winter developed rather ambitious plan involved lot test flying gather performance data vanous sorts info fully intended share upcoming columns Beyond intentions have several new products flight test report about theres telemetry ideal talked about previous column some new speedcontrol circuit ideas could just pos sibly represent mini-breakthough sorts want try out share opportunity expedient fashion lost simply just enough flight time available now best will take vastly longer ie just year So lose lose Because wet power noise course KRC now seeking some other field opportunity believe success could take long time see around very little left resembles open ground housing right up against sure kill wet flying seems associated quiet flying well can see not-too-distant day will no wet flying anywhere around herecounty after county Does mean no flying kind well know.guilt association can tell Im extremely upset association aspect personally enjoyed wet-power RC over quarter century have friends still prefer havent touched stuff nearly 15 years Electric quiet power future modeldom have survive now get later Whats needed locally other places Electric-exclusive club club affiliate hope keeping field change Ive never heard field loss due quiet So much soapbox month Please note previous story no way affects upcoming 93 KRC Electric Fly Thats entirely different borrowed non-KRC field miles away July column included photo computerized data-collection system August column yet out write will have contained some printed output photo caught interest several readers very quickly called wrote seeking information setup everyone technical design details setup supplied friend Phil Thayer 62 Model Aviation htec speed control company result casual conversation about year ago expressed interest such idea Phil turned out already done same thing Anyway Phil graciously supplied schematic certain critical items microporcessor EEprom software got other parts did assembly piece Radio Shack holeboard flew right off bench box battery-powered fourchannel 10-bit A/D 50 volt reference RS 232 link serial port PC curse words software written BASIC easily modified variety tasks including graphic data up four parameters time fact Phil used plot motor rpm voltage current thrust once Anyway display graphs easily scaled including vertical volts horizontal time axes design works absolutely great have lots ideas future modeling applications column contents Indeed simply cant thank Phil enough help Im totally delighted have resource recently Phil persuaded roundabout way design produce professional printed-circuit board circuit major improvement over relatively intense point-to-point hard wiring holeboard As stands now Phil/Flightec will make product suitable software available future fact tells will have up running laptop computer years KRC know technically inclined folks would experience added enjoyment present Electric pursuits item June column discussed how-to most-used Electric accessories charge cord simple elec tronic assembly allows charging radio battery leftover charge motor battery presently have three cords routine use just got parts make several Right now have 11 fully equipped operational Electrics would ordinarily radio-charging nightmare charge cord makes sweet dreams Anyway Ive made minor design improvement charge cord costs few pennies takes few minutes incorporate existing assemblies Im presenting now recommenda tion incorporate might routinely hook up charge cord forget extended periods ie days something oftena logistic necessity will Heres story sug gestion dig out original article refresher before continue As per reference column charge cord uses leftover motor-battery charge supply regulated charge current receiver battery will run long charge available ie until motor battery runs down course receiver battery charging will cease Beyond point however Ive recently discovered tiny current about 600 microamperes will begin drainfrom receiver battery charged 250 mA pack will itself drain about 17 days Ive never problems possible obviously counterproductive operation real troublemaker So heres what about comparing reference article schematic pictorial photos below will notice addition diode positive output wire diode eliminates above condition Ive added charge cords retrofit very easy makes use existing holes lands existing circuit board assembly suggest incorporate upgrade enjoy own charge cord happily ever after September issue included some description flight information then-unnamed new Electric Well its no longer nameless its now REVOLT Ive built flown two have few under construction latest planes basically identical prototype shown last month minor structural tweeks some Tell Control Horn Go Wont Get Bent Out Shape Eve airplane enthusiast know has same problems control horns flex bend break-what else new Introducing Sullivan 555 toughest control horn ever made Cr~with tempered steel instead plastic nickelplated wear resistance Sullivan Control Horn 555 built exacting specifications eliminate flex flutter Better still comes complete glass-filled nylon bushing prevent metal-to-metal contact radio interference sized fit either devises Sullivans New Ball Joint System easy off-axis movement CpJJjjiii Sullivan 555 Finally control horn PRODUCTS thats made right stuff PD Box5166 Baltimore MD 21224 Getting Better Ideas Off Ground October 1993 63 added depth nose section modification necessary because prototype proved whelming success REVOLT originally intended flown over range power systems geared cobalt OSs iSs up directdrive 25s 40sand nothing else associated batteries would consist seven 18 cells would room left over shift packs aid center gravity CG location First flights made with geared 05 7 cells surely would worst-case condition started short plane flew great leaped off grass runway proceeded upward adverse weather conditons Due revolutionary affect new Snake Oil Lubricants Power Rev hvina RIO engines model ers mak ing Secret Weapon Power Rev will quickly transform R/C engine faster smoother powerful efficient powerplant special SP-1O lubricant formula Power Rev RIG Fuel Treatment RIG Engine Treatment RIG 2-Cycle Oil secret effects posi tive change surface metal internal engine parts electro-chemical conditioning causes oarts immediately drew very favorable comment flight line So impressive handling im mediately added another seven cells paral lel weight hit say least overweight variation required longer take off run also flew very well again drew very favorable reaction flight line because its extended flight time exciting success out way tried power systems over range intent case REVOLT flew just great got sorta greedy What about other power systems outside intended range As may recall September column tried direct-drive Thrustmaster repellent WITH other helps eliminate friction results phenomenal Power Rev R/C Fuel Treatment stabilizes Kygenates tel jent com iusuon yen longer unning times nd regular atment wer Rev Engine Ireatment will guard engine wear lubricates protects internal engine parts big names RIG using Snake Oil lubricants now swear So notice bottle Power Rev hidden buddies field box youll know hasnt told about it. thats secret weapon LLiz ICANTS After increased speeds tnyAvailable ar i-tic Outlets NationwideAfter tO years experience Aggresssr achieved fuse SnakeExclusively Manufactured Distributed byducted fan engines nothing cornOil Lubricants treat P/CRobart Mfg Inc StChartes IL 708-584-7616pares pedsrrnance gained equipment--David Ribbe ____1mm using Power Rev Additives MADE IN uSA ______ lons 5OBART ers--Dennis Crooks Power Rev PlC Engine Treatment SO-Of r Rev P/C Fuel Treatment- SO-02 r Rev P/C 2-Cycle Oil SO-06 geared Master Airscrewboth economy motors flown seven-cell pack two parallel REVOLT continued perform unceasing delight myself flight line folks paying surprising amount attention what happeningand requesting plans Having successfully extended power system range downward include some economy motors began think upward Natural candidates included geared cobalt 25s 40s hut larger wouldnt fit original reason modifying nose latest REVOLTs fact Ive recently flown several flights geared 40 21 cellsnearly six pounds all-up almost twice weight lightest systems Results REVOLT flies absolutely great way too last flight 19 minutes long included taxi takeoff touch-and-goes loops cruisin bursts high-rate climb mean high some power-off glide time photos shows pair REVOLTs have similar appearance have internal differences powered Master Airscrew 251 seven l2Ah cells turning 11 x 6 prop weight 53 ounces other has geared Astro cobalt 40 211 4Ah cells turning 11 x 8 prop model weighs 95 ounces Both models use Jomar 5M4 ACE guidance have 600-square-inch wings using 125% high-lift flat-bottom airfoil Folks REVOLT.really REVOLT has lots Vintage design influence very easy stable flyer well suited use trainer power systems tried Deliberate stalls gentle shallow deliberate left right spirals smooth out sticks released power-off flight rather remarkable low-sink glide guess could generalize say REVOLT simply everything except aerobatic intended anyway Also part original intent plane in-flight experiments data accumulation Ive got lots ideas plans three REVOLTS youll seeing future columns Finally feel REVOLT represents unique design flight experience defies conventional wisdom about Electric power system description affords unique opportunity adjust Electric perspective Simply stated frontal assualt motor plane syndrome mocks contempory motor nomenclature nonsense truthful simply dont know anyone has done same sort thing before maybe its truly unique doesnt really matter What matters story has now presented think can gain Ive always firm believer build light everywhere strong needed REVOLT demonstrates benefits 64 Model Aviation loctricslKopski Continued page 64 approach question light aspect reason can fly well lower-power installations strong part permits carry heaviest stuff So now just imagine same plane flying well economy can motor seven cells massive power installation geared cobalt 40 21 cells Its plane motor syndrome Imagine Okay. can anyone guess what toughest part design landing gear Consider must light low-power end strong heaviest installations compromised gear double 1/ inch-wire struts could made lighter lower end stronger other extremean argument customized landing gear over power system range Maybe Ill try sometime So much column Please include SASE correspondence youd like reply Happy Quiet Safe Electric Landings Everyone ng FunlMathews Continued page 46 Wasp photos show McCoy 049 diesel span3 1 inches chord4 inches finish AeroGloss dope flight path left under power right glide Now slightly enlarged version Perry Eaton Kenai Alaska spans 90 inches powered OS 61 fourstroke addition radio control assures flight will like Keith Laumer described Additionally Paul Denson designed published double-sized version Laumer design calling Twin Lizzie OMT MAN April 1978 version three channels RC 20-cubicinch power plant Im reasonably sure full-size plans either version available MAN Certainly looks like flying fun JMunn Continued page 43 edge neatly uniform application thickened dope/cement mixture Allow patch set few minutes pull silk taut along other trimmed edge 90 angle first Keeping silk damp pull taut other two directions adhere around edges Allow surplus material remain place minute two place new razor blade vertically about 3/is inch patched opening pull silk edge up against blade cutting material along length blade Move blade farther along edge repeat process until edges neatly trimmed Any stray strands loose spots can tacked down dope After patch has thoroughly dried apply medium-thick coat dope flipping surface over back few times achieve good fill coat apply several coats thinned dope Later can sand area lightly especially around edges add few coats dope over newly covered area before applying final finish coat sure apply enough coats dope Well-finished silk can last years especially some form plasticizer has added dope prevent overtautening few drops castor oil used plasticizer earlier years modem nontautening dopes contain advanced chemicals Once have mastered technique covering models silk youll have unparalleled satisfaction handiwork * 0 FThaliy An Engine Mount stern Wont Shake Rattle Roll fly model planes dont have tell theres whole lotta shakin goin now theres something can about Sullivan Flex Mount System Its engine mounting sys tem has specially designed rubber isolators absorb engine vibration reduce noise anct limit wear tear modeL thats Flex-Mount comes aluminum adaptor plate makes easy mount 40 60 90 two-cycle engines firewall strap mount beam mounting four-cycle engines So dont jitterbug Thik dealer Sullivan Flex-Mount engine mount U ing system thought rock roll F PRODUCTS wouLd never dieP0 BOx5166BaltimoreMD21224 Getting Better Ideas Off Ground October 1993 65
Edition: Model Aviation - 1993/10
Page Numbers: 61, 62, 63, 64, 65
RADIO CONTROL ELECTRICS FLASH late-breaking addition 93 KRC Electric Flyfor early arrivals will night fly hosted SEFLI Silent Electric Flyers Long Island cooperation KRC Friday Septem ber 17 beginning dark SEFLIs Larry Sribnick SR Batteries will coordinate Light up Electrics way can no fire please join pre-event event References Nytique column December 1988 Illuminous May 1989 Dallas Electric Aircraft Fliers DEAF Seventh Annual Electric Fly-In will held October 2-3 Dallas area according meet CD Frank Korman will two days fun flying fun events AMA events plus Texas barbecue Tex-Mex supper interest warrants will plenty prizes awards go around addition meet combined Gulf States Electric Fly-In October 23-24 New Orleans announced column last month meet combination forms Astro Flight Southern Electric Champion ships special awards top pointgetters can get full info Frank Korman 5834 Goodwin Dallas TX 75206-6106 Tel 214 821-0393 after 5 pm weekends sure check last column information other half meet combination April 93 column included nowominous comment page 164 Enough fields have lost noiseand often means lost model flying kindyou know guilt association Now dont know its just coincidence words wrote somehow premonitory its happened meand Electri-flying club friendsand also affects years club KRC wet dry club has use relatively noise-safe industrial-site field company/owner failed financially back lost use location However about year also developing using additional site loss original end world site lost activity increased other location until finally neighborhood reacted wet noise saturation otherwisepeaceful country setting totally candid dont blame folks live nearby needs anyway ELW Motor56 Di Ri Top View PC lands x-ray visionl Ri 47 Kohm 1/4 W PC board cut RS 276 170 - motor battery motor battery 7 CE Di rnhn Oi SS . .0 RS 276- 2027 - receiver battery i-f-i -R2 -56 ohm 1i4W Red LED RS 276 041 [long lead ] * Added part D11NH914 Equiv RS 276-1122 Heat sink Tip 42 equiv 0 NOTE REVISED WIRE LOCATION iver battery Revised Charge Cord Top View Pictorial Diode added charge cord June column visible tip pointer Fits REVOLTs twins externally existing board pattern Only wire have different power setups Text has output pair relocated original details wide range flight testing configuration October 1993 61 Months Topics 1 Meet Announcement 2 Premonition 3 Computerized Data Acquisition 4 Charge Cord Followup 5 REVOLT REVOLT framework weighs 176 oz complete landing gear wheels Astro 40 geared easily housed Covered weight radio less REVOLTIs motor compartment Mounting Electric components 273 oz D-tube LE system accomodates enormous range 1/16 sheet fuselage sides motor sizes Mounting plate custom fit Master Airscrew geared motor Plate mounts bearers fuselage Individual motor plates V blocks can accomodate motors sizes prop hub still center cowl Fortunately field totally lost flying has dramatically curtailed no flying kind after 730 pm practical purposes its summer mostly lost meand sense tooas follows During winter developed rather ambitious plan involved lot test flying gather performance data vanous sorts info fully intended share upcoming columns Beyond intentions have several new products flight test report about theres telemetry ideal talked about previous column some new speedcontrol circuit ideas could just pos sibly represent mini-breakthough sorts want try out share opportunity expedient fashion lost simply just enough flight time available now best will take vastly longer ie just year So lose lose Because wet power noise course KRC now seeking some other field opportunity believe success could take long time see around very little left resembles open ground housing right up against sure kill wet flying seems associated quiet flying well can see not-too-distant day will no wet flying anywhere around herecounty after county Does mean no flying kind well know.guilt association can tell Im extremely upset association aspect personally enjoyed wet-power RC over quarter century have friends still prefer havent touched stuff nearly 15 years Electric quiet power future modeldom have survive now get later Whats needed locally other places Electric-exclusive club club affiliate hope keeping field change Ive never heard field loss due quiet So much soapbox month Please note previous story no way affects upcoming 93 KRC Electric Fly Thats entirely different borrowed non-KRC field miles away July column included photo computerized data-collection system August column yet out write will have contained some printed output photo caught interest several readers very quickly called wrote seeking information setup everyone technical design details setup supplied friend Phil Thayer 62 Model Aviation htec speed control company result casual conversation about year ago expressed interest such idea Phil turned out already done same thing Anyway Phil graciously supplied schematic certain critical items microporcessor EEprom software got other parts did assembly piece Radio Shack holeboard flew right off bench box battery-powered fourchannel 10-bit A/D 50 volt reference RS 232 link serial port PC curse words software written BASIC easily modified variety tasks including graphic data up four parameters time fact Phil used plot motor rpm voltage current thrust once Anyway display graphs easily scaled including vertical volts horizontal time axes design works absolutely great have lots ideas future modeling applications column contents Indeed simply cant thank Phil enough help Im totally delighted have resource recently Phil persuaded roundabout way design produce professional printed-circuit board circuit major improvement over relatively intense point-to-point hard wiring holeboard As stands now Phil/Flightec will make product suitable software available future fact tells will have up running laptop computer years KRC know technically inclined folks would experience added enjoyment present Electric pursuits item June column discussed how-to most-used Electric accessories charge cord simple elec tronic assembly allows charging radio battery leftover charge motor battery presently have three cords routine use just got parts make several Right now have 11 fully equipped operational Electrics would ordinarily radio-charging nightmare charge cord makes sweet dreams Anyway Ive made minor design improvement charge cord costs few pennies takes few minutes incorporate existing assemblies Im presenting now recommenda tion incorporate might routinely hook up charge cord forget extended periods ie days something oftena logistic necessity will Heres story sug gestion dig out original article refresher before continue As per reference column charge cord uses leftover motor-battery charge supply regulated charge current receiver battery will run long charge available ie until motor battery runs down course receiver battery charging will cease Beyond point however Ive recently discovered tiny current about 600 microamperes will begin drainfrom receiver battery charged 250 mA pack will itself drain about 17 days Ive never problems possible obviously counterproductive operation real troublemaker So heres what about comparing reference article schematic pictorial photos below will notice addition diode positive output wire diode eliminates above condition Ive added charge cords retrofit very easy makes use existing holes lands existing circuit board assembly suggest incorporate upgrade enjoy own charge cord happily ever after September issue included some description flight information then-unnamed new Electric Well its no longer nameless its now REVOLT Ive built flown two have few under construction latest planes basically identical prototype shown last month minor structural tweeks some Tell Control Horn Go Wont Get Bent Out Shape Eve airplane enthusiast know has same problems control horns flex bend break-what else new Introducing Sullivan 555 toughest control horn ever made Cr~with tempered steel instead plastic nickelplated wear resistance Sullivan Control Horn 555 built exacting specifications eliminate flex flutter Better still comes complete glass-filled nylon bushing prevent metal-to-metal contact radio interference sized fit either devises Sullivans New Ball Joint System easy off-axis movement CpJJjjiii Sullivan 555 Finally control horn PRODUCTS thats made right stuff PD Box5166 Baltimore MD 21224 Getting Better Ideas Off Ground October 1993 63 added depth nose section modification necessary because prototype proved whelming success REVOLT originally intended flown over range power systems geared cobalt OSs iSs up directdrive 25s 40sand nothing else associated batteries would consist seven 18 cells would room left over shift packs aid center gravity CG location First flights made with geared 05 7 cells surely would worst-case condition started short plane flew great leaped off grass runway proceeded upward adverse weather conditons Due revolutionary affect new Snake Oil Lubricants Power Rev hvina RIO engines model ers mak ing Secret Weapon Power Rev will quickly transform R/C engine faster smoother powerful efficient powerplant special SP-1O lubricant formula Power Rev RIG Fuel Treatment RIG Engine Treatment RIG 2-Cycle Oil secret effects posi tive change surface metal internal engine parts electro-chemical conditioning causes oarts immediately drew very favorable comment flight line So impressive handling im mediately added another seven cells paral lel weight hit say least overweight variation required longer take off run also flew very well again drew very favorable reaction flight line because its extended flight time exciting success out way tried power systems over range intent case REVOLT flew just great got sorta greedy What about other power systems outside intended range As may recall September column tried direct-drive Thrustmaster repellent WITH other helps eliminate friction results phenomenal Power Rev R/C Fuel Treatment stabilizes Kygenates tel jent com iusuon yen longer unning times nd regular atment wer Rev Engine Ireatment will guard engine wear lubricates protects internal engine parts big names RIG using Snake Oil lubricants now swear So notice bottle Power Rev hidden buddies field box youll know hasnt told about it. thats secret weapon LLiz ICANTS After increased speeds tnyAvailable ar i-tic Outlets NationwideAfter tO years experience Aggresssr achieved fuse SnakeExclusively Manufactured Distributed byducted fan engines nothing cornOil Lubricants treat P/CRobart Mfg Inc StChartes IL 708-584-7616pares pedsrrnance gained equipment--David Ribbe ____1mm using Power Rev Additives MADE IN uSA ______ lons 5OBART ers--Dennis Crooks Power Rev PlC Engine Treatment SO-Of r Rev P/C Fuel Treatment- SO-02 r Rev P/C 2-Cycle Oil SO-06 geared Master Airscrewboth economy motors flown seven-cell pack two parallel REVOLT continued perform unceasing delight myself flight line folks paying surprising amount attention what happeningand requesting plans Having successfully extended power system range downward include some economy motors began think upward Natural candidates included geared cobalt 25s 40s hut larger wouldnt fit original reason modifying nose latest REVOLTs fact Ive recently flown several flights geared 40 21 cellsnearly six pounds all-up almost twice weight lightest systems Results REVOLT flies absolutely great way too last flight 19 minutes long included taxi takeoff touch-and-goes loops cruisin bursts high-rate climb mean high some power-off glide time photos shows pair REVOLTs have similar appearance have internal differences powered Master Airscrew 251 seven l2Ah cells turning 11 x 6 prop weight 53 ounces other has geared Astro cobalt 40 211 4Ah cells turning 11 x 8 prop model weighs 95 ounces Both models use Jomar 5M4 ACE guidance have 600-square-inch wings using 125% high-lift flat-bottom airfoil Folks REVOLT.really REVOLT has lots Vintage design influence very easy stable flyer well suited use trainer power systems tried Deliberate stalls gentle shallow deliberate left right spirals smooth out sticks released power-off flight rather remarkable low-sink glide guess could generalize say REVOLT simply everything except aerobatic intended anyway Also part original intent plane in-flight experiments data accumulation Ive got lots ideas plans three REVOLTS youll seeing future columns Finally feel REVOLT represents unique design flight experience defies conventional wisdom about Electric power system description affords unique opportunity adjust Electric perspective Simply stated frontal assualt motor plane syndrome mocks contempory motor nomenclature nonsense truthful simply dont know anyone has done same sort thing before maybe its truly unique doesnt really matter What matters story has now presented think can gain Ive always firm believer build light everywhere strong needed REVOLT demonstrates benefits 64 Model Aviation loctricslKopski Continued page 64 approach question light aspect reason can fly well lower-power installations strong part permits carry heaviest stuff So now just imagine same plane flying well economy can motor seven cells massive power installation geared cobalt 40 21 cells Its plane motor syndrome Imagine Okay. can anyone guess what toughest part design landing gear Consider must light low-power end strong heaviest installations compromised gear double 1/ inch-wire struts could made lighter lower end stronger other extremean argument customized landing gear over power system range Maybe Ill try sometime So much column Please include SASE correspondence youd like reply Happy Quiet Safe Electric Landings Everyone ng FunlMathews Continued page 46 Wasp photos show McCoy 049 diesel span3 1 inches chord4 inches finish AeroGloss dope flight path left under power right glide Now slightly enlarged version Perry Eaton Kenai Alaska spans 90 inches powered OS 61 fourstroke addition radio control assures flight will like Keith Laumer described Additionally Paul Denson designed published double-sized version Laumer design calling Twin Lizzie OMT MAN April 1978 version three channels RC 20-cubicinch power plant Im reasonably sure full-size plans either version available MAN Certainly looks like flying fun JMunn Continued page 43 edge neatly uniform application thickened dope/cement mixture Allow patch set few minutes pull silk taut along other trimmed edge 90 angle first Keeping silk damp pull taut other two directions adhere around edges Allow surplus material remain place minute two place new razor blade vertically about 3/is inch patched opening pull silk edge up against blade cutting material along length blade Move blade farther along edge repeat process until edges neatly trimmed Any stray strands loose spots can tacked down dope After patch has thoroughly dried apply medium-thick coat dope flipping surface over back few times achieve good fill coat apply several coats thinned dope Later can sand area lightly especially around edges add few coats dope over newly covered area before applying final finish coat sure apply enough coats dope Well-finished silk can last years especially some form plasticizer has added dope prevent overtautening few drops castor oil used plasticizer earlier years modem nontautening dopes contain advanced chemicals Once have mastered technique covering models silk youll have unparalleled satisfaction handiwork * 0 FThaliy An Engine Mount stern Wont Shake Rattle Roll fly model planes dont have tell theres whole lotta shakin goin now theres something can about Sullivan Flex Mount System Its engine mounting sys tem has specially designed rubber isolators absorb engine vibration reduce noise anct limit wear tear modeL thats Flex-Mount comes aluminum adaptor plate makes easy mount 40 60 90 two-cycle engines firewall strap mount beam mounting four-cycle engines So dont jitterbug Thik dealer Sullivan Flex-Mount engine mount U ing system thought rock roll F PRODUCTS wouLd never dieP0 BOx5166BaltimoreMD21224 Getting Better Ideas Off Ground October 1993 65