...at low speed, just above the stall. This is where Gaston is making his point.
Everyone is going 'No ways, it can out turn them as all the flight comparison tests have been done' - I'm also yet to see an official WW2
low speed turning comparison. That Russian report might be the closest that we'll ever get..
BTW .. online the one time I had a Spit, probably a IX, on my tail when I slowed down to full flaps and 50-100ft above the ground. I went into a gentle right bank and he followed, I then threw it into a full hard RH turn at full throttle and right rudder. The Spit couldn't follow - maybe the pilot or maybe the FMs might be correct.