Browse Standards AIR4065A
Current Stabilized 2012-05-29

Propeller/Propfan In-Flight Thrust Determination(STABILIZED May 2012) AIR4065A

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.

AIR 4065, "Propeller/Propfan In-Flight Thrust Determination" addresses steady state propeller thrust as applied to aircraft which are usually powered by gas turbine engines. It includes theory, examples, and methods which have been used. Specifically two methods are discussed, the "J" or traditional J,Cp,Ct,ν method including the SBAC variation and a new method we call the "Theta" method which is dependent on knowing blade angle, power/torque and flight Mach number. Implementation guidelines are offered as well as overall approaches to flight testing. Appendices include expansions on theory and testing as well as examples.

AIR4065A
2012-05-29
Latest
Stabilized
AIR4065
2004-11-17
Historical
Reaffirmed

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