Quote:
Originally Posted by FC99
TAIC is very serious, have you read what I wrote about it? Report that deal with A6M5 and P-38,P-51 and P-47 is TAIC report No 38. A6M5 was tested against some Navy planes too,F6F-5, F4U-1D and FM-2. Results are published as TAIC Report No 17.
So far you didn't provided any evidence that would suggest that there is something fundamentally wrong with the game. IIRC Your picture that shows dives is from the post war magazine article.
And you will be hard pressed to find any RL test with planes diving at 90 deg straight into the ground or any 90 deg diving test for that matter, ~45 deg maximum angle during the dive is more typical.
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1)FC99, 30 degree dive is very different from 60 degree dive,leave alone 90 vertival.
http://www.wwiiaircraftperformance.o...e52-taic38.pdf
P51D and zeke，@10000ft，begin dive at 200MPH（IAS），after 27s， reach 325IAS ，P51D is 200 yards ahead of zeke。
This test is probably a shallow dive(30 degree), in my opinion, if dive in 45-60 degree, P51D will get much more advantage. So we need more data on 45 degree dive.
2)
http://www.wwiiaircraftperformance.org/sl-wade.html
Quote:
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Efficient streamlining and maximum speed both influence the dive, although a jet propelled aircraft will invariably have the advantage, particularly at the higher speeds, when the conventional fighter is progressively more handicapped by airscrew drag, and the accessory protuberances common to all conventionally powered fighters.
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As speed building up, the drag force of airscrew increases sharply because the tip of airscrew is approvching sonic.
Does il2 model this increasing drag of propeller? Does il2 model enginee exhaust gas boost at high speed?
3)
http://www.spitfireperformance.com/spit9v109g.html
Quote:
... I had the throttle open and I rolled over and headed on a course to cut the angle toward the 109s, which had separated a little. I wound on nose-heavy trim so essential to keep the aircraft in a high-speed dive. The Spit responded eagerly as I dove more steeply than the 109s, with Red Two and Three no doubt following, although I could not see them. The controls got very heavy as the airspeed needle moved far right at 480 mph. (Corrected for altitude, true airspeed approached 600 mph.) I could see that I was gaining on the nearest Me 109. That was something new. We were already half-way to Sicily; that was no problem. We knew from years of experience, dating back to the boys who had been in the Battle of Britain, that the 109 with its slim thirty-two foot wing was initially faster in a dive than we were. But we accepted that compromise happily in exchange for our broad superior-lift wing with its better climb and turn. One couldn't have it both ways. In any case, I was closing on this Me 109, which I recognised as a G. Perhaps he wasn't using full throttle.
We were down to 5,000 feet and our dive had become quite shallow. I could see the Sicilian coast a few miles ahead. Now I was within range at 300 yards, and I let him have a good squirt. The first strikes were on the port radiator from which white smoke poured, indicating a glycol coolant leak. I knew I had him before the engine broke out in heavy black smoke. (Bf 109 G-4 "Black 14" of 2(H)/14, flown by Leutnant Friedrich Zander, shot down 10 June 1943)
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In il2, Does bf109 outdive spitfire at initial stage of dive?