Stability and Control characteristics of the Early Mark Spitfires

[Crumpp]

There seems to be no real evidence that a problem existed in the Mk I or II which were the versions used in the BOB

LOL...Really??

Spitfire Mk I Operating Notes, July 1940:

Longitudinally, the aircraft is stable with centre of gravity forward, but is unstable with centre of gravity normal and aft with engine 'OFF' and 'ON'.

http://www.spitfireperformance.com/k9787-fuel.html