744/8 manual takeoff thrust setting (GE)
Thread Starter
Joined: Mar 2011
Posts: 195
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From: Earth
B744/8 manual takeoff thrust setting (GE)
With autothrottle inop, does anyone have a detailed procedure of how to accomplish setting takeoff thrust for the B744/-8?
I assumed it was just:
PF spools all 4 evenly to 70/45% depending on variant
PF advances thrust to approximate calculated N1 and states “set takeoff thrust”
PM adjust thrust to within ~1% of target by 80 knots.
If FO is PM, they adjust thrust from lower part of thrust levers while CA/PF keeps hands on top in case of reject.
Apparently some pilots interpret the Boeing FCOM to mean that only the PM can advance the thrust past 45/70% and that the PF isn’t supposed to set them close to target takeoff N1 on their own.
I assumed it was just:
PF spools all 4 evenly to 70/45% depending on variant
PF advances thrust to approximate calculated N1 and states “set takeoff thrust”
PM adjust thrust to within ~1% of target by 80 knots.
If FO is PM, they adjust thrust from lower part of thrust levers while CA/PF keeps hands on top in case of reject.
Apparently some pilots interpret the Boeing FCOM to mean that only the PM can advance the thrust past 45/70% and that the PF isn’t supposed to set them close to target takeoff N1 on their own.
Last edited by RandomPerson8008; 14th June 2025 at 20:38.
Thread Starter
Joined: Mar 2011
Posts: 195
Likes: 4
From: Earth
Thanks, that doesn't really address the scenario of autothrottles inoperative though other than saying to smoothly advance them; the issue at hand is who does that and how. I am tempted to say it doesn't matter but I'm being forced to address the issue.
Joined: Dec 2001
Aviation Qualifications: ATPL
Posts: 3,766
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From: GA, USA
My employer when A/T is inop:
- CA PF, CA sets thrust within couple %, calls SET THRUST, PM fine tunes calls THRUST SET
- CA PM, CA sets thrust within couple % then fine tunes calls THRUST SET
