A little aside about the Griffon powered spits. Seems as though a pilot was shot down in an MkIX (Merlin) spit and made is was back to his unit VIA Spain. In the interm his Squadron had transitioned to the Mk XIV Griffon powered spits. He never got his breifing and went to take one up. The engines on the two planes turned in OPOSITE directions and he was seen taking off SIDEWAYS across the hangars!! He finally managed to figure things out and was observed as being "very quiet" for the next several days! Just one of the many war stories lol BobH.