I've been looking at the Gloster E28/39 Pioneer, which was made for FS2002. It needed work as contact points were out, weight was wrong etc; I've managed to sort those out & it seems to perform about right except ....... at about 30 KIAS it starts to pull to the left which, if this was a psiton engined aircraft, I'd assume was due o prop effect over the rudder - but, of course, it is a jet! What remarkably stupid beginners mistake have I made now? I've used a combination of ACM & Airwrench to get to this point.