This is great information! Mystery solved. All down to the little gears labelled H & K in the drawings then?
http://miravim.org/avimlibrary/Manua...01,%201943.pdf
I also discovered the P38 is not the only aircraft to have used twin counter rotating Allisons - the F82 used them too.
North American F-82 Twin Mustang - Wikipedia, the free encyclopedia
Last edited by Ulric; 29th Jul 2014 at 17:23.