Quote:
Originally Posted by ICDP
I agree with Seadog that we need +12lbs boost for the RAF fighters, but I dont agree it could be used all day long without potential consequences. Incidentally the Spitfire Mk IIa is already running at +12lbs boost speeds.
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Historically, if you were in a Merlin III powered fighter and you needed to use 12lb boost, you did so, and you damned the consequences because staying alive and/or destroying the enemy was more important than explaining away a broken engine. 12lb boost/3000rpm will not cause overheating in level flight. It might cause overheating in prolonged max angle of attack climbs as per Dowding's memo of Aug 1, 1940 but other combat manoeuvres were probably the prime culprit in causing increased engine wear leading to bearing failure, also as per Dowding's memo.
06-06-2011, 06:59 PM
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