PPRuNe Forums

PPRuNe Forums (https://www.pprune.org/)
-   Tech Log (https://www.pprune.org/tech-log-15/)
-   -   744/8 manual takeoff thrust setting (GE) (https://www.pprune.org/tech-log/666535-744-8-manual-takeoff-thrust-setting-ge.html)

RandomPerson8008 14th June 2025 19:46

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.

leon737 15th June 2025 20:59

https://cimg4.ibsrv.net/gimg/pprune....4d118e2111.png
(from FCT 747(TM) 3.4)

RandomPerson8008 15th June 2025 23:27

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.

B2N2 15th June 2025 23:37

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


All times are GMT. The time now is 15:59.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.