Quote:
Originally Posted by Robo.
My point is that early Merlin were not designed to operate at 4.5lbs. boost max. I am aware of the conversion issues and I only tried to point out that Crumpps assumtion was wrong.
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According to this
article the Merlin was designed as "1,100 hp-class" engine to fill the gap between the 700 hp Peregrine and the 1,500 hp Vulture.
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.