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Hi Tomo,That's a can of worms by itself, as the Merlin XX was projected and tested with various different gear ratios before one was settled on for production. The tests on the Merlin XX also fell in the period in which Hooker improved the British methodology for calculating altitude performance ... I haven't seen the Beaufighter data sheet you mention, but if there's a date on it, that would be interesting to know.Regards,Henning (HoHun)
Hi Tomo,
That's a can of worms by itself, as the Merlin XX was projected and tested with various different gear ratios before one was settled on for production. The tests on the Merlin XX also fell in the period in which Hooker improved the British methodology for calculating altitude performance ... I haven't seen the Beaufighter data sheet you mention, but if there's a date on it, that would be interesting to know.
Regards,
Henning (HoHun)
