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Engine basics => Engine set up tips => Topic started by: James Mills on August 28, 2009, 08:23:14 PM

Title: Overpowering an airplane
Post by: James Mills on August 28, 2009, 08:23:14 PM

After seeing the post by Brett of the gentlemans plane with the 65 pipe set up under 600 squares I am curious how to know if you have too much power/engine?

Thanks,

James

Title: Re: Overpowering an airplane
Post by: dennis lipsett on August 28, 2009, 08:33:33 PM

When your shoulder is always sore, you can't hold a cup of coffee comfortably, and your flying arm is 2 inches longer then the other then you have a problem of too much power.  H^^  LL~

Title: Re: Overpowering an airplane
Post by: jim gilmore on August 29, 2009, 06:42:12 AM

I don't believe that too much power is a possibility in unthrottled airplane. The model that has too much power will be going way too fast. So one basically depitch's the prop to reduce the power.
The question is how to keep enough load on the engine. Bigger prop more blades or wider blades ?

Title: Re: Overpowering an airplane
Post by: Gary Anderson on August 29, 2009, 10:55:06 AM

Hi guys,

I guess if the prop is bigger than the wings you could have a problem n~

Title: Re: Overpowering an airplane
Post by: jim gilmore on August 29, 2009, 01:42:46 PM

Heck, if the prop is bigger  than the l/g is long you got a problem.
but if the engine fits/and the plane can balance/and the all up weight will allow it to fly the pattern, then size isn't too big.