No aircraft AMT, I just graduated college, and am curently running out bike shop, and racing alot......But my dad, and my self both have engineering degrees, and my lil brother is a freshman in mech. eng. right now, and we have too many tools (if that can happen). So with the dirt bikes, and skid steer and everything else i have alot of time to try diff stuff on my bikes. Glad that my advise helped you out.