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| Gas Engines and Power Discuss all aspects of giant scale power systems |
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| | #1 (permalink) |
| Shaun Price ![]() Join Date: Jan 2006 Location: Victoria, BC, Canada
Posts: 1,652
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Hello, Know that the DA85s are all broken in, what are your results on a pipe with 27" props? Looking forward to your responses,
__________________ Shaun Team www.TroyBuiltModels.com Click for video - Aeroworks 35% 260, DA85, KS1090 pipe T-Rex 600CF, TP5000s, Futaba 611 gyro Aero-Works.net FUTABA-rc.com DesertAircraft.com ThunderPowerRC.com CastleCreations.com |
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| | #2 (permalink) |
| I had it, but then I lost it. ![]() Join Date: Feb 2006 Location: Highland Village Texas Age: 17
Posts: 1,860
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I'm not sure what prop he was using but a friend of mine flew the Wild Hare extra with one on a can and that has alot o power.
__________________ Who knows? |
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| | #3 (permalink) | ||||||||||||||||||
| Mother Huckin' ![]() Join Date: Jan 2006 Location: Caguas, Puerto Rico Age: 23
Posts: 3,569
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![]() ![]() ![]() ![]() <-----------(sarcasm)
__________________ Proudly Sponsored by: Aircraft International Aerohobbies B&E Graphics Jersey Modeler Last edited by Vic3D; 02-29-2008 at 08:26 PM. | ||||||||||||||||||
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| | #6 (permalink) |
| Huckin it lower!! ![]() Join Date: Jan 2006 Location: Brisbane, QLD, 'Stralia Age: 18
Posts: 585
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We had one down here, DA 85 on BMB 60mm tuned pipe, Mejzlik 28x10 and 6500rpm confirmed by 3 tachs I believe. Hauled ass in a Comp-arf 2.6 260. Chris B.
__________________ Chris Brislin www.desertaircraft.com www.desertaircraft.com.au www.smart-fly.com www.composite-arf.com www.jjtailwheels.com www.omp.com.au http://www.jrradios.com |
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| | #7 (permalink) | ||||||||||||||||||
| Shaun Price ![]() Join Date: Jan 2006 Location: Victoria, BC, Canada
Posts: 1,652
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So now that ChrisB has set an example of replying to the question , anyone else have some results?Chris, any other info on header, header length etc? Also was that the Mej 28x10th or regular? What octane/oil mix?
__________________ Shaun Team www.TroyBuiltModels.com Click for video - Aeroworks 35% 260, DA85, KS1090 pipe T-Rex 600CF, TP5000s, Futaba 611 gyro Aero-Works.net FUTABA-rc.com DesertAircraft.com ThunderPowerRC.com CastleCreations.com Last edited by sprice50; 02-29-2008 at 10:28 PM. | ||||||||||||||||||
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| | #8 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer! ![]() Join Date: Feb 2006 Location: Durango Colorado Age: 18
Posts: 1,789
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| | #9 (permalink) |
| Shaun Price ![]() Join Date: Jan 2006 Location: Victoria, BC, Canada
Posts: 1,652
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Yes, nice that when you jump to the 42% you can just keep the pipe for the DA170 if you sell the DA85.
__________________ Shaun Team www.TroyBuiltModels.com Click for video - Aeroworks 35% 260, DA85, KS1090 pipe T-Rex 600CF, TP5000s, Futaba 611 gyro Aero-Works.net FUTABA-rc.com DesertAircraft.com ThunderPowerRC.com CastleCreations.com |
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| | #10 (permalink) |
| Huckin it lower!! ![]() Join Date: Jan 2006 Location: Brisbane, QLD, 'Stralia Age: 18
Posts: 585
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The total header length from engine manifold to the first baffle in the pipe should of been 850mm idealy, but the plane crashed before we could get any real adjusting of header length (Check your wing bolts!). The header was custom made using a MTW header kit, Ian Howard and Mick Dakers (The guys who built/owned the plane) silver soldered it themselves to get the ideal drop and wraparound. Chris B.
__________________ Chris Brislin www.desertaircraft.com www.desertaircraft.com.au www.smart-fly.com www.composite-arf.com www.jjtailwheels.com www.omp.com.au http://www.jrradios.com |
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| | #11 (permalink) |
| Shaun Price ![]() Join Date: Jan 2006 Location: Victoria, BC, Canada
Posts: 1,652
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Chris, What was the power and response like throughout the range? Some guys think that only top end improves with a pipe. What are your feelings on this?
__________________ Shaun Team www.TroyBuiltModels.com Click for video - Aeroworks 35% 260, DA85, KS1090 pipe T-Rex 600CF, TP5000s, Futaba 611 gyro Aero-Works.net FUTABA-rc.com DesertAircraft.com ThunderPowerRC.com CastleCreations.com |
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