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Old 05-30-2012, 05:03 AM
BlackBerry BlackBerry is offline
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Quote:
Originally Posted by Crumpp View Post
How do you figure?
http://digital.library.unt.edu/ark:/...dc62616/m1/19/


3-blade Hamilton standard 6507A-2 on P47D, efficiency varies from 83%-63% when TAS is between 0.25-0.7 Mach.


Diagram 1, Cp/blade=0.9, should be at high altitude.

Diagram 2, Cp/blade=0.8, should be at medium altitude.

Diagram 3, Cp/blade=0.6, should be at low altitude.
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