What is the real thrust of the P-60?
So far I have seen 13,
13.5 and 14lbs.

Which is it for real?

I'm guessing at 13 1/2 because thats what the info I have says. Never measured it...don't matter exactly. It starts and runs everytime. A pleasure to own whether at 13, 13 1/2, or 14 pounds.

Dave Rigotti

I questioned Bob Wilcox on that one time because i have seen some different thrust ratings on this motor posted in Euro mags. Bob said he measured 13.5 on their test stand.
V..

Id it is 13.5 on the stand, it is much higher in the open, I would say over 14 easily.

double post

..Why is this..?

The test stand is in a closed room, a cell, and all of the exhausts goes through a large muffed double walled stainless pipe (maybe 15 feet long) to the roof.

Will this affect your fuel consumption "On the stand" / "In the open" figures as well..?