I am hoping on gravity to do the work and exh pressure to keep it flowing at the lower rpm range. but I have a Friend who has a pump that works on crankcase pressure to fall back on for I am using kiss as my motto at this time?
I have good news and bad news I ran the 72 on 10 oz of fuel set on the rich side at 4000 rpm with a 14x6 prop for 45 min. not bad for a new engine I think we can get more in time (don't want to burn it up just yet needs more break in)
The bad news is I don't know the thrust. I have a hand full of parts to build a test stand but on afternoon shift and the noise in the shop will wake the kids and my wife! will get it just not as fast as I would like.
Is there a way to do this by prop size and pitch and get a number to shot for?