Ba 787 sounds
Dec 29, 2019, 6:18 pm
#1
Original Poster
Join Date: Jul 2018
Location: Mexico
Programs: BAEC Gold / Marriott Platinum
Posts: 3,545
Ba 787 sounds
Hi.
I'm sure someone can answer. What is the higher pitched sound on the 787 just after engines reach take off power? It is almost like a high pitched whining noise and lasts until a few mins after takeoff. Not heard it on other planes.
Thanks in advance
I'm sure someone can answer. What is the higher pitched sound on the 787 just after engines reach take off power? It is almost like a high pitched whining noise and lasts until a few mins after takeoff. Not heard it on other planes.
Thanks in advance
Dec 29, 2019, 6:23 pm
#2
Join Date: Oct 2015
Location: London, UK
Programs: BAEC GGL/GFl, HH Diamond, BW Diamond, Virgin Voyages Deep Blue Extra, Blue Peter Badge Holder
Posts: 3,937
Without hearing specifically what sound your referring I can only guess but i believe it’s a hydraulic pump that runs to facilitate the configuration changes needed. It sits just below the pax cabin I’m told.
Dec 30, 2019, 2:14 am
#4
Join Date: Nov 2013
Location: Glasgow
Programs: BAEC (Silver), IHG (Plat Elite)
Posts: 541
Is it not just the engines themselves ? A few minutes after take off, the pilots will throttle back the engines a small amount, not stressing the engines so much once the aircraft is well and truly airborne.
Dec 30, 2019, 2:18 am
#5
Join Date: Nov 2010
Posts: 5,596
They would normally go from Take off Thrust to a lower Climb Thrust as required by weight/noise abatement procedures.
Dec 30, 2019, 6:05 am
#7
Moderator: British Airways Executive Club, Marriott Bonvoy
Join Date: May 2006
Location: Englandshire
Programs: SPG LT Plat, BA G, BD*LG, MG Blue+ ...
Posts: 16,032
If you're sensitive to this type of noise, it can really do your head in after a while.
Dec 30, 2019, 7:15 am
#8
Original Poster
Join Date: Jul 2018
Location: Mexico
Programs: BAEC Gold / Marriott Platinum
Posts: 3,545
Previous posters (see here, for example) have also noted the whine on BAs 787s, which seems to be most prominent in the cabin area behind door 2.
If you're sensitive to this type of noise, it can really do your head in after a while.
If you're sensitive to this type of noise, it can really do your head in after a while.