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Engine basics => Engine set up tips => Topic started by: David M Johnson on June 29, 2013, 11:56:27 AM

Title: Veco bb 19 prop recommendations
Post by: David M Johnson on June 29, 2013, 11:56:27 AM

I'm looking for so propeller recommendations for a Veco bb 19 on a scale plane the Miss Los Angeles. The wing area is about 150 square inches with a pretty thin air foil.    I'm not that familiar with the engine so I'm needing some help and calling in some friends.
Thanks for your input.

Title: Re: Veco bb 19 prop recommendations
Post by: Ted Fancher on June 29, 2013, 12:56:51 PM

David,

What diameter would a scale prop be?  The 19BB will be tons of power for so small a plane so prop selection will be based on the airplane more than the engine.  The thing that worries me more is where the CG will be.  IIRC the Miss LA has a very long nose and not a very large tail.  The weight of the Veco could very easily make the airplane nose heavy to the point the tail may not be adequate to overcome a very far forward CG.  Just for fun, check on the CG location now and let us know.

Ted

Title: Re: Veco bb 19 prop recommendations
Post by: M Spencer on June 29, 2013, 10:56:30 PM

8x6 , 9x4 . 9x5 . Whadaryrgot .

Title: Re: Veco bb 19 prop recommendations
Post by: Duke.Johnson on June 29, 2013, 11:05:46 PM

My Veco .19's seem to do the best on 9x4's