Then what is the issue with the data not aligning?
Quote:
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The altitude difference between the FTH in the charts can be explained by a different level flight speed. E.g.
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It will align. If you looked at other aircraft and not just confined yourself to one specific type, you would see this the case.
A speed difference is not going to account for a 2000 ft increase in FTH.
How do you explain the fact this chart comes from an investigation of performance with an experimental high altitude engine.
The chart exactly matches the one found in:
Messerschmitt Me. 109
Handling and Manoeuvrability Tests
BY
M. B. MORGAN, M.A. and D. E. MORRIS, B.SC.
COMMUNICATED BY THE PRINCIPAL DIRECTOR OF SCIENTIFIC RESEARC (AIR)
MINISTRY OF SUPPLY
__________________________________
Reports and Memoranda No. 2361
September 1940*
http://kurfurst.org/Tactical_trials/...ls/Morgan.html