This source suggests that the failure to develop a better turbo-supercharger was based or prioritization of tungsten for other purposes. This is in keeping with other things I have read about very high priority being given to use of tungsten in machine tools in order to maintain high industrial...
Accuracy is largely dependent on TOF whether bombs, bullets, or shells. Dive bombers should have had improved accuracy because they were releasing bombs at very low levels thereby minimizing target movement between bomb release and bomb impact.
Accuracy on a target range bears little relationship to combat accuracy. It is like the relationship between a rifleman's accuracy on a target range and his accuracy while under fire in combat.
I have often wondered why some German bombs were stored vertically tail down. As a child I was intrigued by videos of them doing their flip.
Did this have any effects on accuracy versus a horizontal drop?
I have read that radials leaked more oil, were slower to start up and warm up.
Liquid cooled engines with ebullient cooling systems could save several horsepower by eliminating water pumps while providing more uniform engine cooling.
No difference between ballistics of 7.62 and 30-06. Both too powerful A 7mm similar to 7-08 would have offered better long range trajectory. Even smaller would have been better. 7mm Pedersen was about right, no need for anything heavier. A 7mm rimless version of the 25 Remington loaded to 50-55...
THe Hughes H-K 4 Hercules was not made of spruce. It was made of birch.
Also it never flew as it never got oiut of ground effect. It was a giant WIG or glorified hovercraft..
The P-39 [P-400] still achieved a 2:1 kill ratio in US hands even against the Zero. In Russian US it was much more successful against both German bombers and fighters especially the Me109.
At low altitudes it was the fastest fighter of its day and outclimbed early P-51's. It was short on...