en777History for Spitfire Serial EN777. 33MU 30-4-42 421S 10-5-42 Collided with EP202 and ditched off Angle 24-1-43Squadrons for : Spitfire Vb EN777: A list of all squadrons known to have flown Spitfire Vb EN777. A profile page is available by clicking the squadron name. Squadron: Info: No.421 Sqn RCAF