I have an alpha 60 trainer plane which has a few degrees of engine down thrust. My question is this normal for this plane? The plane was crashed and rebuilt with the down thrust alignment and I am wondering how the manufacturer sets the engine alignment. The plane does fly okay but does require more than expected down trim. Should the engine be aligned with the fuselage center line or does aligning the engine in this plane with down thrust have some purpose such as shorter take-offs or something? Thanks Wayne</p>