Can someone give me a few real tach numbers to look at?
25FX with what fuel and prop please???
I ran one today with a 9x6 wood prop and got 12,600 rpm, with a pinch test peaking at 13K. Is this engine producing the correct power, or not?
My intent is to use this engine on a 3D profile plane, likely with a 10x4 APC prop.