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HomeAircraftHelicopterHIROBOOther › 9 Vs. 10 tooth pinoin scedau evo50
02-06-2006 11:17 PM  12 years agoPost 1
pilotoo

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ohio

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Anyone know what affect changing the gearing has on the flight charicteristics? I am using a sceadu evo 50 in an Funkey airwolf and it weighs about 10 lbs. I'm just wondering if a 10 tooth Pinion gear will give the heli more torque with slower head speed.

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02-07-2006 01:38 AM  12 years agoPost 2
Leif

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USA

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I'm not sure if you'll experience more torque, but you will get a lower headspeed for the same engine speed.

The gearing change will allow you to run the engine at a higher speed without overspeeding the head, which may get you into a better power band.

Personally, I think it shouldn't be necessary. The OS50 should have more than enough power with the stock gearing to handle a scale fuselage as long as you're flying "scale-like" and not trying to do extreme aerobatics. I fly a Funkey Bell 222 powered by an OS32, which has more than enough zip for scale flight.

Leif

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02-07-2006 02:08 AM  12 years agoPost 3
pilotoo

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ohio

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Sounds good. Thanks for the input, Travis.

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02-07-2006 02:41 AM  12 years agoPost 4
Havoc

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Ky.

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I've tried it. You can bring down the headspeed to around 1850 while keeping it in the power band. I thought it sucked for 3D despite the torque. It just felt slow and a bit off after being accustomed to 1950. But I guess it would be fine for sport scale.

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