Could someone with the plans for a SIG Four Star 120 answer the two following questions:
1)What is the height and width of the engine(F-1 or forward) bulkhead?
2)How far from the top of this bulkhead is the thrust line(line that goes thru the propeller)?
Thanks

I just called SIG and all their techs are at a fly-in setup for this weekend and will not be back in until Monday.

Edited: I was able to have a short phone call with the designer and he gave me the dimensions. Thanks

The answer: 3 3/4" wide, 5 1/4" high, thrust line 3 1/4" from bottom of bulkhead.