Quote:
Originally Posted by Kwiatek
I got similar problem with engine broken at + 9lbs in SPit II even during short time of using - 1-2 minutes. I think temperatures was ok - radiator open. I was surprised by what happened initialy thinking i got hit in engine but it was just engine broken - probably after some dive.
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I always throttle back and reduce revs in a dive to avoid over-revving the engine. Perhaps they have modelled over-revving and you exceeded the max? See attached. Although The Spitfire Pilots Notes are for the Spitfire I it covers Merlin II and Merlin III engines and the other attachment is the limitations for the Spitfire IIa with Merlin XII. Note what these say about the dive rpm limitations.