PPRuNe Forums - View Single Post - B777RR to GE Take-off differences
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Old 18th Feb 2024, 11:24
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MrBernoulli
 
Join Date: Mar 2000
Location: Long ago and far away ......
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Originally Posted by applecrumble
Does anyone know any reason why the B777-200RR895 feels much sticker when unsticking at VR compared to the B777-200GE or even the B777-300GE?
Originally Posted by FullWings
They have been like that since they were introduced - on my first go on an RR variant I thought there was a serious flight control issue when it came to rotate as the forces were so much higher than the GE versions.
Having flown the 777-200 RR and GE engine variants (and also eventually the 777-300 GE) for around 17 years, I cannot say I ever noticed much of a difference in the elevator feel at rotation and lift-off. 🤷🏼‍♂️

I do recall the pitch trim setting calculation differing for the RR variant, a procedure which then later disappeared, but I didn't dwell on it. I just looked over the nose of the aircraft and did as was necessary with the elevator to get the required pitch rate, in order to then meet with the flight director pitch bar for the climb away from the ground.

Originally Posted by FullWings
A bit like the blockpoint update which left the plane much worse at holding than before that hasn’t been improved since.
Yes, the FMC holding pattern for the 777 was initially quite acceptable, but after one particular software update, it then became sloppy and untidy. I assumed that might have something to do with reducing the number of lines of code, or characters, in the software, due to the ridiculously small amounts of memory in the FMC that were now having to be filled with steadily more complex and stringent precision approach stuff? But that is merely my assumption.



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