Originally posted by Nashwan
The RAF ran the 190 at 1.42 ata. According to this report, they also tested it at the derated figures, 1.35 ata max, 1.28 climbing power.
However, they have compared it to a Spit V at 9lbs boost, which is climbing power, but not WEP. I just wondered why.
This is not so.
The British runned the A-3 at 1.35 ata only, that refers to something like ~1400 HP at, while 1730 HP would be avialable at 1.42 ata.
The British only belived that they runned the plane at 1.42 aa, but the fact is that they simply couldn`t do that... the plane was LIMITED to 1.42 ata.
There is proof that the British misunderstood the 190`s limits...
there`s another British curve that lists a Fw190A "at 1.42ata", but if you compare it`s speed performance to the German charts, you can see that what the British believed to be 1.42ata matches the 1.35 ata curve in the German chart.. that`s because what the Brtiish believed to be 1.42 was really only 1.35.. possibly they believed they reached the max. power that was stated in manual when they pushed forward the throttle fully.
That story about the the Spit would have been run at non-WEP power, while the A-3 was runinng at full power makes no sense at all... first thing that the A-3 couldn`t run at 1.42 ata. The second: what use would be for the British making such test? They wanted to know what the two planes could achieve when pushed to their limits; why would then they would run the enemy plane at full power, while running their own at non-maximum powers...?
Fact is that during the tests both planes were running at their achievable maximums: The 190A-3 at 1.35 ata, the Spit V at +9lbs. Neil`s docs show this as well.