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Turbine incidence on turbinator? with Jetcat 80 SE

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Turbine incidence on turbinator? with Jetcat 80 SE

Old 09-12-2019, 11:58 AM
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jmm
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Default Turbine incidence on turbinator? with Jetcat 80 SE

Turbinator go up with throttle?
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Old 09-12-2019, 03:00 PM
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CARS II
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The Turbinator's engine mount was designed around a 13 lbs thrust engine, if a bigger engine is use ( they were used ) then, that extra thrust will make it climb on level passes at full speed, the engine's front has to come up, if it is climbing slightly, use two washers each side under the front mounting screws, now the back of the engine is pointing down more than before, go fly it.

Last edited by CARS II; 09-12-2019 at 03:41 PM.
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Old 09-12-2019, 06:10 PM
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dwhorn
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Run a Jet Munt 80 in mine with 18 degrees downthrust. No climbing and no trim issues at low
or high speed flight. Flies great with this set up.
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Old 09-12-2019, 07:17 PM
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Originally Posted by CARS II View Post
The Turbinator's engine mount was designed around a 13 lbs thrust engine, if a bigger engine is use ( they were used ) then, that extra thrust will make it climb on level passes at full speed, the engine's front has to come up, if it is climbing slightly, use two washers each side under the front mounting screws, now the back of the engine is pointing down more than before, go fly it.
Thanks
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Old 09-13-2019, 12:29 PM
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Originally Posted by CARS II View Post
The Turbinator's engine mount was designed around a 13 lbs thrust engine, if a bigger engine is use ( they were used ) then, that extra thrust will make it climb on level passes at full speed, the engine's front has to come up, if it is climbing slightly, use two washers each side under the front mounting screws, now the back of the engine is pointing down more than before, go fly it.
Ah, for more down thrust to combat climbing at full power, you need washers under the REAR mounting screws to lower the REAR of the engine as the engine in the Turbinator is mounted inverted...

Bob
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Old 09-13-2019, 08:08 PM
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Then we are on agreement.

"to lower the REAR of the engine"

"now the back of the engine is pointing down more than before"

I'm glad we think the same way

Last edited by CARS II; 09-13-2019 at 08:11 PM.
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Old 09-15-2019, 09:59 PM
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This is from the BVM KingCat manual.

I had an itch and I finally gave it some thought, Bob is correct, the engine is mounted on the underside of the rails.

Last edited by CARS II; 09-15-2019 at 10:06 PM.
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