P-39 Expert
Non-Expert
My opinion, because it had a hard time intercepting Japanese bombers at 18000-22000ft and had a hard time cruising at over 18000ft, in both cases while carrying a 110gal drop tank. These P-39D/F/K/L models in 1942 weighed around 7800lbs clean and another 750lbs with the ever present drop tank for a total of around 8550lbs, all powered by an 1150hp engine. This was insanely heavy in comparison with other contemporary fighters with comparable engines.YES!!! It was sent to the SWP and replaced the P-39s being flown by the 39th and 9th FS, V Fighter Command. So to be crystal clear, why was the P-39 replaced???? (In your opinion)
These 1942 P-39s could have easily weighed 7160lbs clean and 7900lbs with drop tank. According to AHT the P-39D weighed 5525lbs empty, add a modified load of 1669lbs (pilot 160lbs, oil 70lbs, 120gal fuel 720lbs, 37mm cannon 300lbs, twox50calMG 275lbs and armor plate/glass of 130lbs without the nose armor, oxygen 10lbs, gunsight 4 lbs). 5525lbs empty + 1669lbs load = 7194lbs. Deduct 34lbs from "armament provisions" since without the 30cal wing guns their gun mounts, chargers, heaters and ammunition boxes aren't needed. Gross weight 7160lbs.
The P-39C weighed 7075lbs gross (only 85lbs difference) and had a top speed of 379mph and initial climb rate of 3720fpm as compared to 2720fpm for a P-39K. Performance increase would have enabled these lighter P-39s to handle Zeros/Oscars for the foreseeable future until Nov/Dec when the improved M/N/Q models were in production.
P-38s could have been sent to Europe to escort 8thAF bombers, if they had been available.