Hi Justin,
>1. PTR 1107 report lists the speed reached after 2 mins at full power - "It should be noted that the runs were made for about two minutes only, during which time full speed was probably not developed but serve for the purpose of comparison." I also suspect that the figures may not have been corrected to standard conditions.
I believe the F4U and Fw 190 speeds in that report are also slightly unusual, confirming the latter suspicion.
>2. The graph in the Vought data looks like 330mph at s/l to me?
Hm, you're right. I guess this proves it's possible to read off the same wrong value three times even when you're aided by a drawing program with a pixel readout, and considering the perceived value as suspicious! :-/
>3. Never seen the TAIC report. I gather that it is a comparitive report, so maybe it was not corrected to standard conditions as well?
F4UDOA linked it over in the A6M thread, but it's not very useful as far as the F6f is concerned. I share your suspicion.
>Here's a picture on which I've noted the details of changes from F6F-3 to F6F-5(thankyou google image search!):
Hm, interesting! While these seem small changes on an airframe as big as the Hellcat's, it certainly confirms the direction of the change - towards a faster F6F-5 :-)
Regards,
Henning (HoHun)
