Sport Aerobatics Ron Van Putte Servo Travel EVER SINCE Nats article pub lished November 1985 issue hardly flying session club field con test goes someone asking chose identify brand radio involved radiointerference-caused crash 1985 Nats truth did identify brand radio manuscript sent Model Aviation Associate Editor chose alter words order avoid potential legal problem radio manufacturer same brand model radio involved Channel 40 FM crashes thought coin cidence though hadnt warned about flying brand radio FM either virtually contest attended almost two years local fliers told hadnt able fly FM brand radio However didnt have much glitch system New Orleans LAa real radio-tester area ever New Orleans rivals old flying field near West Carrollton OH used call Glitchville Acres Since never problems thought system immune interference fact George Myers tested trans mitter Nats processing station told really good Well perhaps receiver weak link However what probably deciding factor Id never flown / / / / / / / / / Straight/ Linear/ / / / Exponential /ij / / / / Variable Trace Ratio Stick Movement Figure 1 older RC systemsand todays lowest-price setshave linear control response totansmitter stick movement Some sets have exponential EXPO con trol response available past several years However Futaba PCM system features Variable Trace Ratio VTR response user optionIts much like EXPO airplane situation near another transmitter trans mitter 1000 feet awayun til got 1985 Nats Im convinced AM transmitters got FM receiver airplane turnaround near adjacent flying site Editors note Van Putte chance read George Myers Radio Technique column January 1986 issue wrote column RMc4/ Since dont like crash expensiveair planes have done two things first remove Channel 40 FM module transmitter convert assorted bits electronic parts install 46 Model Aviation dlsctlnctlve decals adorn Acadian RC Club Lafayette LA air planes clubs attendance South east Pattern meets rivals club Ron knows about Any challengers Decal features shrimp holding transmitter Perry Seamans againl juice-can muffler shown April 85 issue time used Clairol Condition Styling Mousse can Pipes attached using high-temperature Devcon epoxy looks much neater AM module use radio Quickie 500 racer Fun Fly airplanes second thing did buy Futaba PCM system like big boys fly install new Tiporare December 1985 issue Model Aviation discussed use exponen tial control elevator aileron rud der Since Futaba PCM doesnt have exponential controls might think Im stuck something less what Id using PCM has feature called Variable Trace Ratio VTR acts much like exponential Figure 1 shows what mean ob ject have soft neutral along plenty control authority extremes stick throwand both VTR expo nential give dont know ex ponential control really exponential VTR really two linear control curves like figure shows cant tell difference between way airplane flies thats what counts use VTR elevator aileron both active time dual rate elevator has adjusted prop erly VTR doesnt kick bottom outside loops like exponential control did VTR aileron adjusted control smooth around neutral full stick throw gives three rolls about five six seconds PCM also has automatic dual rate rudder can selected use dual rate activated throttle position adjustable set up full rudder throw available throttle below about onethird dual rate cuts above onethird throttle rudder throw ad justed about three-eighths full throw dual rate cuts makes takeoff steering soft about neutral throttle advanced takeoff setting works great Ive getting good scores takeoff small rudder commands desira ble fair scores Figure M / Rolls lots rudder necessary Youll note Im getting fair Continued 128 WE ARE SHOOTING DOWN HIGH RALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 48 30 BALSA STICKS 36 48 116233116 11409 332240116 3/810 18 n243116 1/214 316249332 1410 14 206332 3012 132337332 1216 12033718 1800 116337403118 141116 332344083716 361216 18 304714018 121024 31636202553163161116 14 3739061316 3017 016380316 122230 38 3001247114 141624 12 311015514 361026 34 316514 122130 116406764014 343444 332470948614 140 18 480106665165102128 3164931227636 302737 14 41101348438 123246 38 22538 344288 12 26130 152 12 123653 BATCHEOSHEETS 4212 344662 332410012 150 10410058 5040 316412034 3467 144131 BALSA HOT LINE Call 806 745 6394 10am 6pm Central Time LIGHT 4-6 LB WOOD36 132349 120349 114349 332350 16367 316376 14385 303115 123139 343220 13300 1/10476 332491 104100 3164117 144138 304207 202 BALSA TRIANGLES 36 141425 383630 121234 343445 1 1 55 BALSA PLANKS 36 1180 12154 13204 14204 1123270 1124360 22225 23325 24435 33495 34688124 TAPERED SHEETS36 142 65TRAILING EDGE36 143 8514132 362 665161 1439 383 90301 1246 12312012270 LONE STAR EPOXY O n590 15 rein598 30 sri590 INSTANTGLUE 1 , Th,k208 1 z Thin298 2, Thik555 2e Thin550 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa 48 26 30 38 46 60 42 49 00 60 70 90 90 100 BUNDLE DEALS 2016336005 201164361020 20332336845 15332436955 1518336715 1018436675 15316336900 10316436010 1014336630 1014436090 1036334050 538434025 512336540 5-12436055 10332448845 510448485 5316440565 514445625 PINE STICKS36 10101317 18141623 18302027 3163101724 316302332 316123040 14142437 14363042 14123447 36303752 SPRUCE STICKS 36 48 10 1015 18 141624 10 302029 3163162034 14 143145 14 383600 30 304563 30 125570 12 126080 12 340080 SPRUCE TRIANGLES 38 38 12 12 3434 36 45 61 77 LITE PLY 48 186150 1812300 48HARD MAPLE 1430 363/8 3812 3034 1234 BIRCH DOWELS 10 316 14 516 30 IS 40 45 50 50 60 36 00 11 14 25 32 3PLYBIRCH48 14412525 13212425 11012435 1812450 SPLYSIRCN48 33212570 1812585 31612585 1412600 GROOVED LG MOUNTS 12 InchaC 383410 40 3934532 40 1234316/ 46 LONE STAR MODELS Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO 1623 57th St Lubbock TX 79412 acept Visa Master Card personal heks COD 4 1/8% lan February 1986 47 Canadas Ivan Kristensen won FAI F3A Pattern 85 AMA Nate Summit SASS WOOD 316316 31614 31636 31612 31634 1414 1436 1434 30 30 3012 30 34 (212 12 34 p1 MULTIPLEXThe Competitors Edge ..-J14 Channel ROYAL mc Especially Competition FlyerI Exclusive Flight tested since 1979 2001 FM Narrowband PCM Fast accurate service repair 7725 E Redfield Rd e 105 tsdale Airpark tsdale Arizona 8526 Beemer RC West Distributors Inc 602 483-9577 MEMORY SOFT MODULE features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Complete system$6995 Cash MO Certified Check Plus $300 postage handling Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale RdGalesbury 1161401 Radio Technique/Myers Continued page 125 frequency spacing signif icant indication FM transmitters triplet makes inter ference worse So data tells us certain road better 31M situa tion ban FM entirely dont think idea will sell either George M Myers 70 Froehlich Farm Rd Hicksvile NY 11801 1 2 3 Kick/Randolph Continued page 45 bit lean bit rich Most seem arrive too-lean setting ear isnt good Actually exhaust provides best clue proper setting first few times Set needle valve will small amount visible smoke setting will very close correct get exact consistent peak rpm four-stroke engine set needle valve aid tachometer run four-stroke engines lean less 20% oil fuel subject running four-strokers interesting note manufacturer suggests ffipping prop backwards against cpmpression starting case works fact very first four-stroke engine started flipping prop backwards Following instructions started very first flip Traditional starting hand-flipping no problem four-cycle engines ever same starters used two-cycle engines just effective fourstrokers Although have heard back fires kicking props loose larger engines usually result having needle valve set too lean have never experienced problem An extra quarterturn prop nut seems good insurance Propellers Manufacturers usually suggest range propellers engine ideal propeller use best airplane/engine Maxi mum power four-stroke engine produced lower rpm twostroker other factors trans lates needing bigger prop and/or pitch comparablysized two-stroker amount prop thrust put out low-revving engine may amaze performance figures given engine reviewers some magazinesthose show ing peak power output specific prop specific rpmif developed bench runningdont tell whole story practical usage Bench running doesnt show effects props unloading flight best thing feel try flying different props until best suited airplane found key thing remember thrust propel ler gives speed model fly engine simply turns propeller last item difference fourstroke engines crankcase breather pressure tap Since crankcase part carburetion system must vented relieve internal air pressure piston goes up down bit oil drains breather good idea vent outside airplane engine cowled breather vent good place shot oil after flying session give bearings little protection should part clean-up procedure Four-cycle engines stay No doubt will become commonplace two-cycle engines future dont have get Youll love RC Aerobatics/Van Putte Continued page 47 scores Figure M 1A Rolls seems wind direction never right end up doing maneuver crosswind Its tough enough wind direction down runway nearly impossible well crosswind unless youre right top elevator control except few superior pilots rest us hate little advice potential purchasers 128 Model Aviation aster FACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE Futaba PCM read reread instruction book guarantee wont understand everything after first reading kept discovering new things time went through because Id missed things Like RC fliers have no need features transmitter offers use appropriate An unexpected bonus ability programmable mixing Tiporare Im currently flying has quirk yaw ing right hard elevator con trols used like Figure M s Square Loop Top Hat So mixed Up elevator Left rudder yaw disappeared mix currently activated just before performing maneuvers might try leaving because need little hird Up elevator way program nable mixer works Down elevator has no effect rudder Nice feature December 1985 column men tioned use Sears Filled Epoxy Ce ment Catalog Number 980605 repair fiberglass fuselages Actually use lot other purposes subject time men tioned Several people have told went local Sears store tried buy some given idiot treatment know goes Never heard isnt listed catalog Well true can buy Florida bought Ohio 15 years ago cant explain doesnt seem available some parts maybe parts country Several years ago mentioned same thing happened bought some Bud Wolfe out Scottsdale AZ mailed him dont want habit suggestion go Sears store armed exact name catalog number raise little cain until agree get some meantime Ill find out what Sears distribution center ships Sears store let know Are fliers finishes last flight day wipes off airplane disassembles packs car heads home used like too last several years Whats wrong procedure Well depends several factors like keep airplane between flying sessions long tween flying sessions whether like buy bearings engine dont empty fuel tank com pletely store airplane nose-down could have fuel siphon tank engine Raw fuel does nasty things carpets asphalt tiles other floor coverings addition raw fuel contact bearings alcohol hydrophilic can draw water will rust bearings fly often rusting probably wont prob lem two weeks tween flying sessions youre asking bearing problems empty fuel tank after flying session its good idea get rid fuel thats still engine fliers use straight after-run oil prefer use water-displacement lubricant aerosol can procedure use learned stolen Steve Rojecki takes about minute After tank empty turn radio open throttle Load up crankcase lubricant attach starting battery engine start engine electric starter possible hand-start engine takes engine will run short blast using pro pellant aerosol Repeat pro cedure several times usually four times youre done will oil bearings alcohol alcohol will flushed out engine No rusted bearings Its especially important properly treat engine storage very long periods time like over winter Its October being written its about New Years youre reading So havent already winterized engines should think seriously about whether youd rather now buy new bearings next spring Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP 13677128 146778 1567 16678 PRICE 299 379 479 669 989 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534149 634149 72833456179 8334568189 84566Vz7199 9456677199 14566h7209 106WBW209 106EW219 114677I7/z7¾8229 IISW229 11BEW239 1167239 124W279 12SW279 1256279 P1356349 1456459 1556659 164/N969 16678969 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N5N279 86/77/8299 SERIES 400C 6 66I77/7/289 9 777/289 / WIDE BLADE EW EXTRA WIDE N NARROW February 1986129 DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 314 221-8803 77 HOBBY WORLD IMPORTS 12889 WESTHIEMER HOUSTON TEXAS 77077 713-497-2031 Please Call Prices Planes Boats Cars McDanIel Nisturter Reg $2495 Ial 1 5 plus postage & DINERS StoreMONSAT104pm HoursSUNDAY125 pm FULL LINE DISCOUNT HOBBY SHOP THE LEADER IN COMPETITION PROPELLERS 4 CYCLE SERIES 100
Edition: Model Aviation - 1986/02
Page Numbers: 46, 47, 128, 129
Edition: Model Aviation - 1986/02
Page Numbers: 46, 47, 128, 129
Sport Aerobatics Ron Van Putte Servo Travel EVER SINCE Nats article pub lished November 1985 issue hardly flying session club field con test goes someone asking chose identify brand radio involved radiointerference-caused crash 1985 Nats truth did identify brand radio manuscript sent Model Aviation Associate Editor chose alter words order avoid potential legal problem radio manufacturer same brand model radio involved Channel 40 FM crashes thought coin cidence though hadnt warned about flying brand radio FM either virtually contest attended almost two years local fliers told hadnt able fly FM brand radio However didnt have much glitch system New Orleans LAa real radio-tester area ever New Orleans rivals old flying field near West Carrollton OH used call Glitchville Acres Since never problems thought system immune interference fact George Myers tested trans mitter Nats processing station told really good Well perhaps receiver weak link However what probably deciding factor Id never flown / / / / / / / / / Straight/ Linear/ / / / Exponential /ij / / / / Variable Trace Ratio Stick Movement Figure 1 older RC systemsand todays lowest-price setshave linear control response totansmitter stick movement Some sets have exponential EXPO con trol response available past several years However Futaba PCM system features Variable Trace Ratio VTR response user optionIts much like EXPO airplane situation near another transmitter trans mitter 1000 feet awayun til got 1985 Nats Im convinced AM transmitters got FM receiver airplane turnaround near adjacent flying site Editors note Van Putte chance read George Myers Radio Technique column January 1986 issue wrote column RMc4/ Since dont like crash expensiveair planes have done two things first remove Channel 40 FM module transmitter convert assorted bits electronic parts install 46 Model Aviation dlsctlnctlve decals adorn Acadian RC Club Lafayette LA air planes clubs attendance South east Pattern meets rivals club Ron knows about Any challengers Decal features shrimp holding transmitter Perry Seamans againl juice-can muffler shown April 85 issue time used Clairol Condition Styling Mousse can Pipes attached using high-temperature Devcon epoxy looks much neater AM module use radio Quickie 500 racer Fun Fly airplanes second thing did buy Futaba PCM system like big boys fly install new Tiporare December 1985 issue Model Aviation discussed use exponen tial control elevator aileron rud der Since Futaba PCM doesnt have exponential controls might think Im stuck something less what Id using PCM has feature called Variable Trace Ratio VTR acts much like exponential Figure 1 shows what mean ob ject have soft neutral along plenty control authority extremes stick throwand both VTR expo nential give dont know ex ponential control really exponential VTR really two linear control curves like figure shows cant tell difference between way airplane flies thats what counts use VTR elevator aileron both active time dual rate elevator has adjusted prop erly VTR doesnt kick bottom outside loops like exponential control did VTR aileron adjusted control smooth around neutral full stick throw gives three rolls about five six seconds PCM also has automatic dual rate rudder can selected use dual rate activated throttle position adjustable set up full rudder throw available throttle below about onethird dual rate cuts above onethird throttle rudder throw ad justed about three-eighths full throw dual rate cuts makes takeoff steering soft about neutral throttle advanced takeoff setting works great Ive getting good scores takeoff small rudder commands desira ble fair scores Figure M / Rolls lots rudder necessary Youll note Im getting fair Continued 128 WE ARE SHOOTING DOWN HIGH RALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 48 30 BALSA STICKS 36 48 116233116 11409 332240116 3/810 18 n243116 1/214 316249332 1410 14 206332 3012 132337332 1216 12033718 1800 116337403118 141116 332344083716 361216 18 304714018 121024 31636202553163161116 14 3739061316 3017 016380316 122230 38 3001247114 141624 12 311015514 361026 34 316514 122130 116406764014 343444 332470948614 140 18 480106665165102128 3164931227636 302737 14 41101348438 123246 38 22538 344288 12 26130 152 12 123653 BATCHEOSHEETS 4212 344662 332410012 150 10410058 5040 316412034 3467 144131 BALSA HOT LINE Call 806 745 6394 10am 6pm Central Time LIGHT 4-6 LB WOOD36 132349 120349 114349 332350 16367 316376 14385 303115 123139 343220 13300 1/10476 332491 104100 3164117 144138 304207 202 BALSA TRIANGLES 36 141425 383630 121234 343445 1 1 55 BALSA PLANKS 36 1180 12154 13204 14204 1123270 1124360 22225 23325 24435 33495 34688124 TAPERED SHEETS36 142 65TRAILING EDGE36 143 8514132 362 665161 1439 383 90301 1246 12312012270 LONE STAR EPOXY O n590 15 rein598 30 sri590 INSTANTGLUE 1 , Th,k208 1 z Thin298 2, Thik555 2e Thin550 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa 48 26 30 38 46 60 42 49 00 60 70 90 90 100 BUNDLE DEALS 2016336005 201164361020 20332336845 15332436955 1518336715 1018436675 15316336900 10316436010 1014336630 1014436090 1036334050 538434025 512336540 5-12436055 10332448845 510448485 5316440565 514445625 PINE STICKS36 10101317 18141623 18302027 3163101724 316302332 316123040 14142437 14363042 14123447 36303752 SPRUCE STICKS 36 48 10 1015 18 141624 10 302029 3163162034 14 143145 14 383600 30 304563 30 125570 12 126080 12 340080 SPRUCE TRIANGLES 38 38 12 12 3434 36 45 61 77 LITE PLY 48 186150 1812300 48HARD MAPLE 1430 363/8 3812 3034 1234 BIRCH DOWELS 10 316 14 516 30 IS 40 45 50 50 60 36 00 11 14 25 32 3PLYBIRCH48 14412525 13212425 11012435 1812450 SPLYSIRCN48 33212570 1812585 31612585 1412600 GROOVED LG MOUNTS 12 InchaC 383410 40 3934532 40 1234316/ 46 LONE STAR MODELS Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO 1623 57th St Lubbock TX 79412 acept Visa Master Card personal heks COD 4 1/8% lan February 1986 47 Canadas Ivan Kristensen won FAI F3A Pattern 85 AMA Nate Summit SASS WOOD 316316 31614 31636 31612 31634 1414 1436 1434 30 30 3012 30 34 (212 12 34 p1 MULTIPLEXThe Competitors Edge ..-J14 Channel ROYAL mc Especially Competition FlyerI Exclusive Flight tested since 1979 2001 FM Narrowband PCM Fast accurate service repair 7725 E Redfield Rd e 105 tsdale Airpark tsdale Arizona 8526 Beemer RC West Distributors Inc 602 483-9577 MEMORY SOFT MODULE features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Complete system$6995 Cash MO Certified Check Plus $300 postage handling Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale RdGalesbury 1161401 Radio Technique/Myers Continued page 125 frequency spacing signif icant indication FM transmitters triplet makes inter ference worse So data tells us certain road better 31M situa tion ban FM entirely dont think idea will sell either George M Myers 70 Froehlich Farm Rd Hicksvile NY 11801 1 2 3 Kick/Randolph Continued page 45 bit lean bit rich Most seem arrive too-lean setting ear isnt good Actually exhaust provides best clue proper setting first few times Set needle valve will small amount visible smoke setting will very close correct get exact consistent peak rpm four-stroke engine set needle valve aid tachometer run four-stroke engines lean less 20% oil fuel subject running four-strokers interesting note manufacturer suggests ffipping prop backwards against cpmpression starting case works fact very first four-stroke engine started flipping prop backwards Following instructions started very first flip Traditional starting hand-flipping no problem four-cycle engines ever same starters used two-cycle engines just effective fourstrokers Although have heard back fires kicking props loose larger engines usually result having needle valve set too lean have never experienced problem An extra quarterturn prop nut seems good insurance Propellers Manufacturers usually suggest range propellers engine ideal propeller use best airplane/engine Maxi mum power four-stroke engine produced lower rpm twostroker other factors trans lates needing bigger prop and/or pitch comparablysized two-stroker amount prop thrust put out low-revving engine may amaze performance figures given engine reviewers some magazinesthose show ing peak power output specific prop specific rpmif developed bench runningdont tell whole story practical usage Bench running doesnt show effects props unloading flight best thing feel try flying different props until best suited airplane found key thing remember thrust propel ler gives speed model fly engine simply turns propeller last item difference fourstroke engines crankcase breather pressure tap Since crankcase part carburetion system must vented relieve internal air pressure piston goes up down bit oil drains breather good idea vent outside airplane engine cowled breather vent good place shot oil after flying session give bearings little protection should part clean-up procedure Four-cycle engines stay No doubt will become commonplace two-cycle engines future dont have get Youll love RC Aerobatics/Van Putte Continued page 47 scores Figure M 1A Rolls seems wind direction never right end up doing maneuver crosswind Its tough enough wind direction down runway nearly impossible well crosswind unless youre right top elevator control except few superior pilots rest us hate little advice potential purchasers 128 Model Aviation aster FACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE Futaba PCM read reread instruction book guarantee wont understand everything after first reading kept discovering new things time went through because Id missed things Like RC fliers have no need features transmitter offers use appropriate An unexpected bonus ability programmable mixing Tiporare Im currently flying has quirk yaw ing right hard elevator con trols used like Figure M s Square Loop Top Hat So mixed Up elevator Left rudder yaw disappeared mix currently activated just before performing maneuvers might try leaving because need little hird Up elevator way program nable mixer works Down elevator has no effect rudder Nice feature December 1985 column men tioned use Sears Filled Epoxy Ce ment Catalog Number 980605 repair fiberglass fuselages Actually use lot other purposes subject time men tioned Several people have told went local Sears store tried buy some given idiot treatment know goes Never heard isnt listed catalog Well true can buy Florida bought Ohio 15 years ago cant explain doesnt seem available some parts maybe parts country Several years ago mentioned same thing happened bought some Bud Wolfe out Scottsdale AZ mailed him dont want habit suggestion go Sears store armed exact name catalog number raise little cain until agree get some meantime Ill find out what Sears distribution center ships Sears store let know Are fliers finishes last flight day wipes off airplane disassembles packs car heads home used like too last several years Whats wrong procedure Well depends several factors like keep airplane between flying sessions long tween flying sessions whether like buy bearings engine dont empty fuel tank com pletely store airplane nose-down could have fuel siphon tank engine Raw fuel does nasty things carpets asphalt tiles other floor coverings addition raw fuel contact bearings alcohol hydrophilic can draw water will rust bearings fly often rusting probably wont prob lem two weeks tween flying sessions youre asking bearing problems empty fuel tank after flying session its good idea get rid fuel thats still engine fliers use straight after-run oil prefer use water-displacement lubricant aerosol can procedure use learned stolen Steve Rojecki takes about minute After tank empty turn radio open throttle Load up crankcase lubricant attach starting battery engine start engine electric starter possible hand-start engine takes engine will run short blast using pro pellant aerosol Repeat pro cedure several times usually four times youre done will oil bearings alcohol alcohol will flushed out engine No rusted bearings Its especially important properly treat engine storage very long periods time like over winter Its October being written its about New Years youre reading So havent already winterized engines should think seriously about whether youd rather now buy new bearings next spring Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP 13677128 146778 1567 16678 PRICE 299 379 479 669 989 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534149 634149 72833456179 8334568189 84566Vz7199 9456677199 14566h7209 106WBW209 106EW219 114677I7/z7¾8229 IISW229 11BEW239 1167239 124W279 12SW279 1256279 P1356349 1456459 1556659 164/N969 16678969 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N5N279 86/77/8299 SERIES 400C 6 66I77/7/289 9 777/289 / WIDE BLADE EW EXTRA WIDE N NARROW February 1986129 DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 314 221-8803 77 HOBBY WORLD IMPORTS 12889 WESTHIEMER HOUSTON TEXAS 77077 713-497-2031 Please Call Prices Planes Boats Cars McDanIel Nisturter Reg $2495 Ial 1 5 plus postage & DINERS StoreMONSAT104pm HoursSUNDAY125 pm FULL LINE DISCOUNT HOBBY SHOP THE LEADER IN COMPETITION PROPELLERS 4 CYCLE SERIES 100
Edition: Model Aviation - 1986/02
Page Numbers: 46, 47, 128, 129
Sport Aerobatics Ron Van Putte Servo Travel EVER SINCE Nats article pub lished November 1985 issue hardly flying session club field con test goes someone asking chose identify brand radio involved radiointerference-caused crash 1985 Nats truth did identify brand radio manuscript sent Model Aviation Associate Editor chose alter words order avoid potential legal problem radio manufacturer same brand model radio involved Channel 40 FM crashes thought coin cidence though hadnt warned about flying brand radio FM either virtually contest attended almost two years local fliers told hadnt able fly FM brand radio However didnt have much glitch system New Orleans LAa real radio-tester area ever New Orleans rivals old flying field near West Carrollton OH used call Glitchville Acres Since never problems thought system immune interference fact George Myers tested trans mitter Nats processing station told really good Well perhaps receiver weak link However what probably deciding factor Id never flown / / / / / / / / / Straight/ Linear/ / / / Exponential /ij / / / / Variable Trace Ratio Stick Movement Figure 1 older RC systemsand todays lowest-price setshave linear control response totansmitter stick movement Some sets have exponential EXPO con trol response available past several years However Futaba PCM system features Variable Trace Ratio VTR response user optionIts much like EXPO airplane situation near another transmitter trans mitter 1000 feet awayun til got 1985 Nats Im convinced AM transmitters got FM receiver airplane turnaround near adjacent flying site Editors note Van Putte chance read George Myers Radio Technique column January 1986 issue wrote column RMc4/ Since dont like crash expensiveair planes have done two things first remove Channel 40 FM module transmitter convert assorted bits electronic parts install 46 Model Aviation dlsctlnctlve decals adorn Acadian RC Club Lafayette LA air planes clubs attendance South east Pattern meets rivals club Ron knows about Any challengers Decal features shrimp holding transmitter Perry Seamans againl juice-can muffler shown April 85 issue time used Clairol Condition Styling Mousse can Pipes attached using high-temperature Devcon epoxy looks much neater AM module use radio Quickie 500 racer Fun Fly airplanes second thing did buy Futaba PCM system like big boys fly install new Tiporare December 1985 issue Model Aviation discussed use exponen tial control elevator aileron rud der Since Futaba PCM doesnt have exponential controls might think Im stuck something less what Id using PCM has feature called Variable Trace Ratio VTR acts much like exponential Figure 1 shows what mean ob ject have soft neutral along plenty control authority extremes stick throwand both VTR expo nential give dont know ex ponential control really exponential VTR really two linear control curves like figure shows cant tell difference between way airplane flies thats what counts use VTR elevator aileron both active time dual rate elevator has adjusted prop erly VTR doesnt kick bottom outside loops like exponential control did VTR aileron adjusted control smooth around neutral full stick throw gives three rolls about five six seconds PCM also has automatic dual rate rudder can selected use dual rate activated throttle position adjustable set up full rudder throw available throttle below about onethird dual rate cuts above onethird throttle rudder throw ad justed about three-eighths full throw dual rate cuts makes takeoff steering soft about neutral throttle advanced takeoff setting works great Ive getting good scores takeoff small rudder commands desira ble fair scores Figure M / Rolls lots rudder necessary Youll note Im getting fair Continued 128 WE ARE SHOOTING DOWN HIGH RALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 48 30 BALSA STICKS 36 48 116233116 11409 332240116 3/810 18 n243116 1/214 316249332 1410 14 206332 3012 132337332 1216 12033718 1800 116337403118 141116 332344083716 361216 18 304714018 121024 31636202553163161116 14 3739061316 3017 016380316 122230 38 3001247114 141624 12 311015514 361026 34 316514 122130 116406764014 343444 332470948614 140 18 480106665165102128 3164931227636 302737 14 41101348438 123246 38 22538 344288 12 26130 152 12 123653 BATCHEOSHEETS 4212 344662 332410012 150 10410058 5040 316412034 3467 144131 BALSA HOT LINE Call 806 745 6394 10am 6pm Central Time LIGHT 4-6 LB WOOD36 132349 120349 114349 332350 16367 316376 14385 303115 123139 343220 13300 1/10476 332491 104100 3164117 144138 304207 202 BALSA TRIANGLES 36 141425 383630 121234 343445 1 1 55 BALSA PLANKS 36 1180 12154 13204 14204 1123270 1124360 22225 23325 24435 33495 34688124 TAPERED SHEETS36 142 65TRAILING EDGE36 143 8514132 362 665161 1439 383 90301 1246 12312012270 LONE STAR EPOXY O n590 15 rein598 30 sri590 INSTANTGLUE 1 , Th,k208 1 z Thin298 2, Thik555 2e Thin550 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa 48 26 30 38 46 60 42 49 00 60 70 90 90 100 BUNDLE DEALS 2016336005 201164361020 20332336845 15332436955 1518336715 1018436675 15316336900 10316436010 1014336630 1014436090 1036334050 538434025 512336540 5-12436055 10332448845 510448485 5316440565 514445625 PINE STICKS36 10101317 18141623 18302027 3163101724 316302332 316123040 14142437 14363042 14123447 36303752 SPRUCE STICKS 36 48 10 1015 18 141624 10 302029 3163162034 14 143145 14 383600 30 304563 30 125570 12 126080 12 340080 SPRUCE TRIANGLES 38 38 12 12 3434 36 45 61 77 LITE PLY 48 186150 1812300 48HARD MAPLE 1430 363/8 3812 3034 1234 BIRCH DOWELS 10 316 14 516 30 IS 40 45 50 50 60 36 00 11 14 25 32 3PLYBIRCH48 14412525 13212425 11012435 1812450 SPLYSIRCN48 33212570 1812585 31612585 1412600 GROOVED LG MOUNTS 12 InchaC 383410 40 3934532 40 1234316/ 46 LONE STAR MODELS Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO 1623 57th St Lubbock TX 79412 acept Visa Master Card personal heks COD 4 1/8% lan February 1986 47 Canadas Ivan Kristensen won FAI F3A Pattern 85 AMA Nate Summit SASS WOOD 316316 31614 31636 31612 31634 1414 1436 1434 30 30 3012 30 34 (212 12 34 p1 MULTIPLEXThe Competitors Edge ..-J14 Channel ROYAL mc Especially Competition FlyerI Exclusive Flight tested since 1979 2001 FM Narrowband PCM Fast accurate service repair 7725 E Redfield Rd e 105 tsdale Airpark tsdale Arizona 8526 Beemer RC West Distributors Inc 602 483-9577 MEMORY SOFT MODULE features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Complete system$6995 Cash MO Certified Check Plus $300 postage handling Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale RdGalesbury 1161401 Radio Technique/Myers Continued page 125 frequency spacing signif icant indication FM transmitters triplet makes inter ference worse So data tells us certain road better 31M situa tion ban FM entirely dont think idea will sell either George M Myers 70 Froehlich Farm Rd Hicksvile NY 11801 1 2 3 Kick/Randolph Continued page 45 bit lean bit rich Most seem arrive too-lean setting ear isnt good Actually exhaust provides best clue proper setting first few times Set needle valve will small amount visible smoke setting will very close correct get exact consistent peak rpm four-stroke engine set needle valve aid tachometer run four-stroke engines lean less 20% oil fuel subject running four-strokers interesting note manufacturer suggests ffipping prop backwards against cpmpression starting case works fact very first four-stroke engine started flipping prop backwards Following instructions started very first flip Traditional starting hand-flipping no problem four-cycle engines ever same starters used two-cycle engines just effective fourstrokers Although have heard back fires kicking props loose larger engines usually result having needle valve set too lean have never experienced problem An extra quarterturn prop nut seems good insurance Propellers Manufacturers usually suggest range propellers engine ideal propeller use best airplane/engine Maxi mum power four-stroke engine produced lower rpm twostroker other factors trans lates needing bigger prop and/or pitch comparablysized two-stroker amount prop thrust put out low-revving engine may amaze performance figures given engine reviewers some magazinesthose show ing peak power output specific prop specific rpmif developed bench runningdont tell whole story practical usage Bench running doesnt show effects props unloading flight best thing feel try flying different props until best suited airplane found key thing remember thrust propel ler gives speed model fly engine simply turns propeller last item difference fourstroke engines crankcase breather pressure tap Since crankcase part carburetion system must vented relieve internal air pressure piston goes up down bit oil drains breather good idea vent outside airplane engine cowled breather vent good place shot oil after flying session give bearings little protection should part clean-up procedure Four-cycle engines stay No doubt will become commonplace two-cycle engines future dont have get Youll love RC Aerobatics/Van Putte Continued page 47 scores Figure M 1A Rolls seems wind direction never right end up doing maneuver crosswind Its tough enough wind direction down runway nearly impossible well crosswind unless youre right top elevator control except few superior pilots rest us hate little advice potential purchasers 128 Model Aviation aster FACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE Futaba PCM read reread instruction book guarantee wont understand everything after first reading kept discovering new things time went through because Id missed things Like RC fliers have no need features transmitter offers use appropriate An unexpected bonus ability programmable mixing Tiporare Im currently flying has quirk yaw ing right hard elevator con trols used like Figure M s Square Loop Top Hat So mixed Up elevator Left rudder yaw disappeared mix currently activated just before performing maneuvers might try leaving because need little hird Up elevator way program nable mixer works Down elevator has no effect rudder Nice feature December 1985 column men tioned use Sears Filled Epoxy Ce ment Catalog Number 980605 repair fiberglass fuselages Actually use lot other purposes subject time men tioned Several people have told went local Sears store tried buy some given idiot treatment know goes Never heard isnt listed catalog Well true can buy Florida bought Ohio 15 years ago cant explain doesnt seem available some parts maybe parts country Several years ago mentioned same thing happened bought some Bud Wolfe out Scottsdale AZ mailed him dont want habit suggestion go Sears store armed exact name catalog number raise little cain until agree get some meantime Ill find out what Sears distribution center ships Sears store let know Are fliers finishes last flight day wipes off airplane disassembles packs car heads home used like too last several years Whats wrong procedure Well depends several factors like keep airplane between flying sessions long tween flying sessions whether like buy bearings engine dont empty fuel tank com pletely store airplane nose-down could have fuel siphon tank engine Raw fuel does nasty things carpets asphalt tiles other floor coverings addition raw fuel contact bearings alcohol hydrophilic can draw water will rust bearings fly often rusting probably wont prob lem two weeks tween flying sessions youre asking bearing problems empty fuel tank after flying session its good idea get rid fuel thats still engine fliers use straight after-run oil prefer use water-displacement lubricant aerosol can procedure use learned stolen Steve Rojecki takes about minute After tank empty turn radio open throttle Load up crankcase lubricant attach starting battery engine start engine electric starter possible hand-start engine takes engine will run short blast using pro pellant aerosol Repeat pro cedure several times usually four times youre done will oil bearings alcohol alcohol will flushed out engine No rusted bearings Its especially important properly treat engine storage very long periods time like over winter Its October being written its about New Years youre reading So havent already winterized engines should think seriously about whether youd rather now buy new bearings next spring Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP 13677128 146778 1567 16678 PRICE 299 379 479 669 989 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534149 634149 72833456179 8334568189 84566Vz7199 9456677199 14566h7209 106WBW209 106EW219 114677I7/z7¾8229 IISW229 11BEW239 1167239 124W279 12SW279 1256279 P1356349 1456459 1556659 164/N969 16678969 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N5N279 86/77/8299 SERIES 400C 6 66I77/7/289 9 777/289 / WIDE BLADE EW EXTRA WIDE N NARROW February 1986129 DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 314 221-8803 77 HOBBY WORLD IMPORTS 12889 WESTHIEMER HOUSTON TEXAS 77077 713-497-2031 Please Call Prices Planes Boats Cars McDanIel Nisturter Reg $2495 Ial 1 5 plus postage & DINERS StoreMONSAT104pm HoursSUNDAY125 pm FULL LINE DISCOUNT HOBBY SHOP THE LEADER IN COMPETITION PROPELLERS 4 CYCLE SERIES 100
Edition: Model Aviation - 1986/02
Page Numbers: 46, 47, 128, 129
Sport Aerobatics Ron Van Putte Servo Travel EVER SINCE Nats article pub lished November 1985 issue hardly flying session club field con test goes someone asking chose identify brand radio involved radiointerference-caused crash 1985 Nats truth did identify brand radio manuscript sent Model Aviation Associate Editor chose alter words order avoid potential legal problem radio manufacturer same brand model radio involved Channel 40 FM crashes thought coin cidence though hadnt warned about flying brand radio FM either virtually contest attended almost two years local fliers told hadnt able fly FM brand radio However didnt have much glitch system New Orleans LAa real radio-tester area ever New Orleans rivals old flying field near West Carrollton OH used call Glitchville Acres Since never problems thought system immune interference fact George Myers tested trans mitter Nats processing station told really good Well perhaps receiver weak link However what probably deciding factor Id never flown / / / / / / / / / Straight/ Linear/ / / / Exponential /ij / / / / Variable Trace Ratio Stick Movement Figure 1 older RC systemsand todays lowest-price setshave linear control response totansmitter stick movement Some sets have exponential EXPO con trol response available past several years However Futaba PCM system features Variable Trace Ratio VTR response user optionIts much like EXPO airplane situation near another transmitter trans mitter 1000 feet awayun til got 1985 Nats Im convinced AM transmitters got FM receiver airplane turnaround near adjacent flying site Editors note Van Putte chance read George Myers Radio Technique column January 1986 issue wrote column RMc4/ Since dont like crash expensiveair planes have done two things first remove Channel 40 FM module transmitter convert assorted bits electronic parts install 46 Model Aviation dlsctlnctlve decals adorn Acadian RC Club Lafayette LA air planes clubs attendance South east Pattern meets rivals club Ron knows about Any challengers Decal features shrimp holding transmitter Perry Seamans againl juice-can muffler shown April 85 issue time used Clairol Condition Styling Mousse can Pipes attached using high-temperature Devcon epoxy looks much neater AM module use radio Quickie 500 racer Fun Fly airplanes second thing did buy Futaba PCM system like big boys fly install new Tiporare December 1985 issue Model Aviation discussed use exponen tial control elevator aileron rud der Since Futaba PCM doesnt have exponential controls might think Im stuck something less what Id using PCM has feature called Variable Trace Ratio VTR acts much like exponential Figure 1 shows what mean ob ject have soft neutral along plenty control authority extremes stick throwand both VTR expo nential give dont know ex ponential control really exponential VTR really two linear control curves like figure shows cant tell difference between way airplane flies thats what counts use VTR elevator aileron both active time dual rate elevator has adjusted prop erly VTR doesnt kick bottom outside loops like exponential control did VTR aileron adjusted control smooth around neutral full stick throw gives three rolls about five six seconds PCM also has automatic dual rate rudder can selected use dual rate activated throttle position adjustable set up full rudder throw available throttle below about onethird dual rate cuts above onethird throttle rudder throw ad justed about three-eighths full throw dual rate cuts makes takeoff steering soft about neutral throttle advanced takeoff setting works great Ive getting good scores takeoff small rudder commands desira ble fair scores Figure M / Rolls lots rudder necessary Youll note Im getting fair Continued 128 WE ARE SHOOTING DOWN HIGH RALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 48 30 BALSA STICKS 36 48 116233116 11409 332240116 3/810 18 n243116 1/214 316249332 1410 14 206332 3012 132337332 1216 12033718 1800 116337403118 141116 332344083716 361216 18 304714018 121024 31636202553163161116 14 3739061316 3017 016380316 122230 38 3001247114 141624 12 311015514 361026 34 316514 122130 116406764014 343444 332470948614 140 18 480106665165102128 3164931227636 302737 14 41101348438 123246 38 22538 344288 12 26130 152 12 123653 BATCHEOSHEETS 4212 344662 332410012 150 10410058 5040 316412034 3467 144131 BALSA HOT LINE Call 806 745 6394 10am 6pm Central Time LIGHT 4-6 LB WOOD36 132349 120349 114349 332350 16367 316376 14385 303115 123139 343220 13300 1/10476 332491 104100 3164117 144138 304207 202 BALSA TRIANGLES 36 141425 383630 121234 343445 1 1 55 BALSA PLANKS 36 1180 12154 13204 14204 1123270 1124360 22225 23325 24435 33495 34688124 TAPERED SHEETS36 142 65TRAILING EDGE36 143 8514132 362 665161 1439 383 90301 1246 12312012270 LONE STAR EPOXY O n590 15 rein598 30 sri590 INSTANTGLUE 1 , Th,k208 1 z Thin298 2, Thik555 2e Thin550 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa 48 26 30 38 46 60 42 49 00 60 70 90 90 100 BUNDLE DEALS 2016336005 201164361020 20332336845 15332436955 1518336715 1018436675 15316336900 10316436010 1014336630 1014436090 1036334050 538434025 512336540 5-12436055 10332448845 510448485 5316440565 514445625 PINE STICKS36 10101317 18141623 18302027 3163101724 316302332 316123040 14142437 14363042 14123447 36303752 SPRUCE STICKS 36 48 10 1015 18 141624 10 302029 3163162034 14 143145 14 383600 30 304563 30 125570 12 126080 12 340080 SPRUCE TRIANGLES 38 38 12 12 3434 36 45 61 77 LITE PLY 48 186150 1812300 48HARD MAPLE 1430 363/8 3812 3034 1234 BIRCH DOWELS 10 316 14 516 30 IS 40 45 50 50 60 36 00 11 14 25 32 3PLYBIRCH48 14412525 13212425 11012435 1812450 SPLYSIRCN48 33212570 1812585 31612585 1412600 GROOVED LG MOUNTS 12 InchaC 383410 40 3934532 40 1234316/ 46 LONE STAR MODELS Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO 1623 57th St Lubbock TX 79412 acept Visa Master Card personal heks COD 4 1/8% lan February 1986 47 Canadas Ivan Kristensen won FAI F3A Pattern 85 AMA Nate Summit SASS WOOD 316316 31614 31636 31612 31634 1414 1436 1434 30 30 3012 30 34 (212 12 34 p1 MULTIPLEXThe Competitors Edge ..-J14 Channel ROYAL mc Especially Competition FlyerI Exclusive Flight tested since 1979 2001 FM Narrowband PCM Fast accurate service repair 7725 E Redfield Rd e 105 tsdale Airpark tsdale Arizona 8526 Beemer RC West Distributors Inc 602 483-9577 MEMORY SOFT MODULE features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Complete system$6995 Cash MO Certified Check Plus $300 postage handling Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale RdGalesbury 1161401 Radio Technique/Myers Continued page 125 frequency spacing signif icant indication FM transmitters triplet makes inter ference worse So data tells us certain road better 31M situa tion ban FM entirely dont think idea will sell either George M Myers 70 Froehlich Farm Rd Hicksvile NY 11801 1 2 3 Kick/Randolph Continued page 45 bit lean bit rich Most seem arrive too-lean setting ear isnt good Actually exhaust provides best clue proper setting first few times Set needle valve will small amount visible smoke setting will very close correct get exact consistent peak rpm four-stroke engine set needle valve aid tachometer run four-stroke engines lean less 20% oil fuel subject running four-strokers interesting note manufacturer suggests ffipping prop backwards against cpmpression starting case works fact very first four-stroke engine started flipping prop backwards Following instructions started very first flip Traditional starting hand-flipping no problem four-cycle engines ever same starters used two-cycle engines just effective fourstrokers Although have heard back fires kicking props loose larger engines usually result having needle valve set too lean have never experienced problem An extra quarterturn prop nut seems good insurance Propellers Manufacturers usually suggest range propellers engine ideal propeller use best airplane/engine Maxi mum power four-stroke engine produced lower rpm twostroker other factors trans lates needing bigger prop and/or pitch comparablysized two-stroker amount prop thrust put out low-revving engine may amaze performance figures given engine reviewers some magazinesthose show ing peak power output specific prop specific rpmif developed bench runningdont tell whole story practical usage Bench running doesnt show effects props unloading flight best thing feel try flying different props until best suited airplane found key thing remember thrust propel ler gives speed model fly engine simply turns propeller last item difference fourstroke engines crankcase breather pressure tap Since crankcase part carburetion system must vented relieve internal air pressure piston goes up down bit oil drains breather good idea vent outside airplane engine cowled breather vent good place shot oil after flying session give bearings little protection should part clean-up procedure Four-cycle engines stay No doubt will become commonplace two-cycle engines future dont have get Youll love RC Aerobatics/Van Putte Continued page 47 scores Figure M 1A Rolls seems wind direction never right end up doing maneuver crosswind Its tough enough wind direction down runway nearly impossible well crosswind unless youre right top elevator control except few superior pilots rest us hate little advice potential purchasers 128 Model Aviation aster FACTURERS OF SPORT PATTERN STINGER II PEPPERMINT PATTIE 60 TAN PEPPERMINT PATTIE 40SPORT/SCALE PEPPERMINT PATTIE 15 HIPERBIPE Futaba PCM read reread instruction book guarantee wont understand everything after first reading kept discovering new things time went through because Id missed things Like RC fliers have no need features transmitter offers use appropriate An unexpected bonus ability programmable mixing Tiporare Im currently flying has quirk yaw ing right hard elevator con trols used like Figure M s Square Loop Top Hat So mixed Up elevator Left rudder yaw disappeared mix currently activated just before performing maneuvers might try leaving because need little hird Up elevator way program nable mixer works Down elevator has no effect rudder Nice feature December 1985 column men tioned use Sears Filled Epoxy Ce ment Catalog Number 980605 repair fiberglass fuselages Actually use lot other purposes subject time men tioned Several people have told went local Sears store tried buy some given idiot treatment know goes Never heard isnt listed catalog Well true can buy Florida bought Ohio 15 years ago cant explain doesnt seem available some parts maybe parts country Several years ago mentioned same thing happened bought some Bud Wolfe out Scottsdale AZ mailed him dont want habit suggestion go Sears store armed exact name catalog number raise little cain until agree get some meantime Ill find out what Sears distribution center ships Sears store let know Are fliers finishes last flight day wipes off airplane disassembles packs car heads home used like too last several years Whats wrong procedure Well depends several factors like keep airplane between flying sessions long tween flying sessions whether like buy bearings engine dont empty fuel tank com pletely store airplane nose-down could have fuel siphon tank engine Raw fuel does nasty things carpets asphalt tiles other floor coverings addition raw fuel contact bearings alcohol hydrophilic can draw water will rust bearings fly often rusting probably wont prob lem two weeks tween flying sessions youre asking bearing problems empty fuel tank after flying session its good idea get rid fuel thats still engine fliers use straight after-run oil prefer use water-displacement lubricant aerosol can procedure use learned stolen Steve Rojecki takes about minute After tank empty turn radio open throttle Load up crankcase lubricant attach starting battery engine start engine electric starter possible hand-start engine takes engine will run short blast using pro pellant aerosol Repeat pro cedure several times usually four times youre done will oil bearings alcohol alcohol will flushed out engine No rusted bearings Its especially important properly treat engine storage very long periods time like over winter Its October being written its about New Years youre reading So havent already winterized engines should think seriously about whether youd rather now buy new bearings next spring Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIA PITCH THP 13677128 146778 1567 16678 PRICE 299 379 479 669 989 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534149 634149 72833456179 8334568189 84566Vz7199 9456677199 14566h7209 106WBW209 106EW219 114677I7/z7¾8229 IISW229 11BEW239 1167239 124W279 12SW279 1256279 P1356349 1456459 1556659 164/N969 16678969 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N5N279 86/77/8299 SERIES 400C 6 66I77/7/289 9 777/289 / WIDE BLADE EW EXTRA WIDE N NARROW February 1986129 DIVISION OF BAR/RICH SALES CO #2 FAIRWAY HANNIBAL MO 63401 314 221-8803 77 HOBBY WORLD IMPORTS 12889 WESTHIEMER HOUSTON TEXAS 77077 713-497-2031 Please Call Prices Planes Boats Cars McDanIel Nisturter Reg $2495 Ial 1 5 plus postage & DINERS StoreMONSAT104pm HoursSUNDAY125 pm FULL LINE DISCOUNT HOBBY SHOP THE LEADER IN COMPETITION PROPELLERS 4 CYCLE SERIES 100
