vinnye
Senior Airman
Thats an impressive gain. The biggest problem with maximum speeds during level flight - is at what altitude?
I have seen figures for Spitfire Mk 1 as 362 mph at 18,500ft and for a Mk21 as 455 at 25,600 ft. Which makes a straight comparison alittle difficult!
I have seen figures for Spitfire Mk 1 as 362 mph at 18,500ft and for a Mk21 as 455 at 25,600 ft. Which makes a straight comparison alittle difficult!