ORIGINAL: vonSchnitter
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As to relative performance of allied planes versus the Zero: Yes there was some flight testing done with captured Zeros, either in the „field“ and by NACA. The interesting part of the NACA report was, that only the P-39 finished all the tests (while for instance the P-40 developed mechanical trouble) – and the test concluded, that the P-39 could combat the Zero successfully, given the right circumstances. Trouble was, the pilots flying the bird did for the most part not believe in it and used to be more concerned with some of the stability and stall charactersitics of this plane.
Someone in this thread has quoted the numbers these tests indicate as best suited to take on the Zero. A close look at them reveals, that the aircraft types would need a very early warning to get to the indicated altitudes and airspeeds. Which in a way underlines my argument.
Unless a more „detailed“ implementation of offensive/defensive air combat can be found and implemented, I would rather like to keep the „Zero Bonus“, extend it to the other Japanese fighters and to compensate for the overall effect by reducing the experience/morale levels of the Japanese second line air units (like the units in Japan itself) to much lower levels – probably levels slightly higher than those „Training“ Chuties (SP?).
Just my 2c.
Cheers
Actually those tests you indicated (which are often quoted for obvious reasons) :
1) Prove that the P39 was a vastly better performer than the Zero in speed, acceleration and climb - below 14,000 feet and especially below 10,000 feet. Above that altitude the Zero held a distinct edge.
2) Only the P40F developed engine trouble and couldn't be tested - all other allied aircraft were fine when tested. (Wildcat, P38, etc)
3) The Zero's advantage in maneuverability was in all cases below 250 mph, which is bare cruising speed for P39's and P40's - so the time it would take them to get to an airspeed above the best speed range for the Zero would be negligible unless caught taking off/landing or just plain bounced (all of which are advantageous for any aircraft).
Now the P39 already has an altitude penalty in the game - The Only Plane in the game to have one - fine, but somehow they forgot to give the P-39 a good MVR rating below it's 10,000' penalty - why should it suffer even more?
Also, as ErikShilling (AVG pilot) points out, those tests with the Aleutian Zero were made with the Zero carrying no armament - a bit of an unrealistic weight advantage for the tests, so if that's the case the performance of the Zero in THAT test should be taken with a bit of a grain of salt.
Lastly, if the Zero Bonus is just a game device for the 'Early Japanese Offensive' it's a poor one because most of that air activity was done by other aircraft, and should be represented some other way if you believe the game engine cannot produce historic results (I trust the game engine).
Personally I kind of hate these 'game devices' to give 'flavor' to a game, it reminds me of 'Aryan' Hill board games that went for flavor over facts and statistics.