@ scot585:
Yes, the P-39 had the engine behind the pilot. Big drive-shaft ran forward between the pilot's legs to the reducing gear up forward. Rest of the front of the A/C had this nasty great cannon and an ammo bin. Gun fired through the prop hub.
Likely it would do a flat spin, so you didn't get it in to an attitude where it could do one.
It was widely advertised that the P-39 could not dogfight. Nobody told this to the Russians, so they dogfought the things anyway, with pretty fair results. They were actually one heluvva tank-buster if you used them right.
Literally thousands of these were rebuilt from "scrap" to "new" at Aircraft Repair in Edmonton. When they came in, they had US markings and were rode hard and put away wet. When they left, they were zero-houred and painted brown with a big red star on the side. My Dad was one of the 2 Chief Inspectors at Aircraft Repair through most of 1944 and 1945. He was qualified as Instrument Mechanic, Instrument Repairman, Instrument Maker and Aircraft Factory Inspector. There are still a few boxes of Dad's P-39 parts around here; they go to the CATP Museum next Summer.
Interesting point: the Air Museum in Tikkakoski (they have a very good website) is rebuilding a P-39 with a Russian paint-job over top of American colours. I'm just wondering if it's one of Dad's...... I think he would like that.