ORIGINAL: Ed Smith
If adding side thrust after the airplane is complete then the prop is no longer on the model C/L and the spinner backplate is misaligned with the nose ring.
Ed S
Gee guys maybe some reserch should have been done here........................The Miles Reed Extra 260 dosen't have a nose ring!! Even so, I gave the OP dimentions to adjust the position of this engine so that his prop hub would be centered in the cowl and have the correct about of thrust offsets.