…In that case then I’d start with 3 deg down as per the drawings and shim in more later if needed. I used 4-ish deg down on two similar scratch-builds -one of which has a full 50% more thrust than the other- and both models have zero pitching moment with their respective throttles set anywhere from 30% thru 100%.
IMO, don’t sweat it. I doubt that you’d be very far off if you went with 3,4, or 5 degrees, and whatever you select is easily adjusted afterward.
Last edited by highhorse; 09-30-2022 at 05:12 PM.