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Anyone using telemetry for RPM and speed measurement?

Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Anyone using telemetry for RPM and speed measurement?

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Old 02-25-2006, 07:37 PM
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Fortune7
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Default Anyone using telemetry for RPM and speed measurement?

I'm flying a GP Little Toni with an MVVS .61 and trying to get the best rpm and (therefore) speed out of it. OK, I know both the engine and airframe have 'limitations'; I already have a Jett BSE 90LX on order (!) so am hoping to get 'what I can' out of the LT. Does anyone here use or have an opinion about on-board telemetry like the Eagle Tree systems Seagull data recorder? Seems to me that logging actual speed and rpm will soon help to 'tune-in' a motor / prop setup. I'm using the LT to help me get used to 'something over 100mph' as I progress to my first turbine jet which is in-the-build (a comp-ARF Eurosport). I need to get a turbine waiver so the fast prop plane should help the transition (it's fun too!). If anyone's actually using on-board rpm measurement I'd be interested in feedback including sensor magnet(s) mounting.

Thanks, Andy
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Old 02-25-2006, 11:00 PM
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Cyclic Hardover
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Default RE: Anyone using telemetry for RPM and speed measurement?

What prop are you using
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Old 02-26-2006, 06:59 AM
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Fortune7
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Default RE: Anyone using telemetry for RPM and speed measurement?

I have been trying different props, from 11x7 thru 11/9, 12x6 and 14x6. The 14x6 seems to 'feel' the best with a static rpm of 10400. I know this MVVS 61 engine prefers a static of around 11000. I'm trying a 13x6 today. All APCs. Fuel is 10% Omega.

Andy
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