> BTW I never said 'whole aircraft drag' - always just the drag > due to the cooling system. In this article we have some better > numbers: 350lb of additional thrust on an aeroplane generating > c. 1000lb of thrust via the prop. Or 400lbs worth of drag > reduced to 50lbs. > > The Spitfire MkIX wasn't a particularly inefficient aeroplane, > there has to be a reason why the Mustang (unquoted Mk but > assumed to be roughly equivalent) was (according to this > article) 30mph faster. Wing, duct or both?
I've got plenty of articles around here somewhere ... this sounds familiar. I'll see if I can find a reference. Jon _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
