N-156F From , joined Dec 1969, posts, RR: Posted (14 years 7 months 3 weeks 2 hours ago) and read 1269 times:
What is a typical takeoff throttle setting for a 727-200 without hushkits, keeping it below Stage III? I know there are a variety of them depending on conditions- let's say a/c is 80% full, OAT is 75 deg. F, and runway length is 7,500 ft.
Could it be done within the noise levels? If so, what settings would be used?
Buzz From United States of America, joined Nov 1999, 697 posts, RR: 21
Reply 2, posted (14 years 7 months 2 weeks 1 day 14 hours ago) and read 1123 times:
Hi N-156F, Buzz here. Well, when i'd take a 727 out for a power assurance run the max EPR was 2.12 on the side engines, 2.10 on the center engine.
Of course i didn't worry about the Stage 3 noise regulations. I was interested in a different kind of noise abatement: the sound of a 727 running off the end of the runway (grin).
Buzz Fuselsausage: Line Mechanic by night, DC-3 Crew Chief by choice.