Thread: B767 thrust
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Old January 22nd 07, 01:28 PM posted to rec.aviation.piloting
Bob Moore
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Default B767 thrust

Kevin wrote

According to the type certificate data sheet for the Pratt and Whitney
62,000 thrust engine, the max continuous thrust should be ~52,000 and
the 62,000 for 5 minutes max. The question is, does N1 @ 100% produce
52,000 lbs of thrust or does it produce 60,200 lbs of thurst? Any
airline pilots out there that can shed light on this?


Neither...N1 for a given thrust rating will vary with Temp/Pressure.
Airline engines are not "full throttle" engines while during my time,
military engines were. A military engine was set to produce 100% RPM
at full throttle, and they accepted either more or less thrust depending
on Temp/Pressure conditions. For commercial engines, an EPR/RPM is
computed for each takeoff and the thrust lever adjusted to obtain that
value.

Bob Moore
ATP B-727 B-707