direction of prop spin?
 

If your lookin at the end of the crank shaft and you have right hand threads. Is the prop going to spin clockwise or anti clock?

RE: direction of prop spin?
 

Counter clockwise

RE: direction of prop spin?
 

Which end? I was taught by a Curtiss Wright field engineer to always refer to crankshaft rotation from the pilots/drivers seat. In this case clockwise.

Bill

RE: direction of prop spin?
 

What has the thread hand to do with your question? Do you mean what direction the engine is designed for?
We operate our engines standing in front of it, so normal props turn counter clockwise if observed from this position, and which is clockwise if you take the pilot's seat.
The thread direction is such, that the prop load tends to tighten the nut if the prop should slip on the shaft.

RE: direction of prop spin?
 

With our "normal" engines, a right-hand thread tends to tighten during uses, whereas a left-hand thread would tend to loosen. Maybe that is the reason behind his question.

RE: direction of prop spin?
 

thats what i thought i just wanted to confirm. im new at this hobby. i dont want any accidents. safety first and foremost.