Quote:
Originally Posted by Crumpp
It is the design goal. Maximum continuous is the power the engine is designed to develop and maintain.
It represents 100% of the power capability of an aircraft engine. Anything over that is an overload condition and will shorten the life of the engine.
Typically you see overload capability in take off ratings, sometimes climb ratings, and in emergency ratings.
It is the power the engine can produce at 100% capability that is the primary focus.
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Quote:
Originally Posted by 41Sqn_Banks
However I don't think Crumpp claims that the Merlin was limited to +4 1/2 boost at any time, if he does he will certainly provide a document to support this claim. I think he consider the "maximum continuous rating" of every engine as the design goal and uses this value to compare different engines. He's free to do so. Others consider the maximum power, and some may use the takeoff power. It doesn't matter, the engine remains the same.
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Not so long ago Crumpp claimed that the Merlin was only capable of generating 400hp...
Quote:
Originally Posted by Crumpp
You are talking about running the engine at 3 times its original design maximum capacity. Really guy? You think just changing the fuel did that?
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I asked:
Quote:
Originally Posted by NZtyphoon
So you think the Merlin was designed to run at about 400 hp?
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Quote:
Originally Posted by Crumpp
If that is what the engine produces at maximum continuous...YES.
Get a Spitfire Mk I POH and read the maximum continuous rating. That is the maximum power the engine is designed to safely and reliability produce.
Mixture control Normal = +4 1/2 lbs at 2600rpm
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So he is trying to claim the Merlin III's maximum designed continuous power rating was +4 1/2 lbs at 2600rpm, and about 400hp.