[Juha]

Firstly micron468
Thanks for the graph, much appreciated!

Kurfürst
Yes, the test subject was wing twist. On the results, IMHO the roll rate was rather good at 500kmh and at 600kmh. Do You know at what altitude the other tests were made? According to Raunio the problem in the test was that the pilot could not turn the stick greater than 20 kp force at 600kmh because of the narrowness of the cockpit and so was able to use only 6 deg. aileron at that speed. At higher altitude the ailerons should have been lighter. Also in 109G the skin of the wings was thicker so there should have been less aerodynamic twist and a little better rollrate at high speeds.

BTW the Raunio's article was in number 3/2005, I left that out in my earlier message.

On British test on 109E, I cannot remember seeing any graphs of it but in Quill's book pp. 183 - 184 "The A & AEE reported on the Me 109E in Oct. 1941:"The flying controls have excellent response and feel at low speeds but are far too heavy for manoeuvring at high speeds. The extreme heaviness of the ailerons makes rolling almost impossible at speeds obove 400mph."

But if Spit Mk V with metal covered ailerons could achieve only 40 deg/sec at 400mph(640kmh) (at what heigh?) and 109F-4 could made a full roll in 7 sec at 600kmh, was 109 so bad, at least from F onwards?

Juha