Moderators: richierich, ua900, PanAm_DC10, hOMSaR

User avatar
Topic Author
Posts: 30120
Joined: Fri Jan 05, 2001 10:05 pm

A320 Neo sound

Tue Dec 08, 2020 7:43 pm

The A320 Neo has a 1-2sec Grinding sound on Landing presuming on deploying the Thrust Reversers.
What exactly is causing that sound.
Sounds like Steel brakes getting applied on taxying Aircraft, only this is on Touchdown.
I may not win often, but I damn well never lose!!! ;)
Posts: 5530
Joined: Wed Mar 01, 2000 11:10 am

Re: A320 Neo sound

Wed Dec 09, 2020 6:28 am

Can you post a link to a video, so we can all hear it?
Also, are you certain that it happens on both LEAP and PW-GTF engines?
Because those Pratts make a whole new library of weird noises, from startup to shut down!
Posts: 642
Joined: Sun Oct 05, 2008 12:34 am

Re: A320 Neo sound

Wed Dec 09, 2020 5:23 pm

I'm going to venture you're talking about the GTF. You can hear the grinding/growling noise at lower power settings. In Seattle, I can hear it and know instantly it's a DL A220 joining the LOC with the engines spooling from idle.

I'm curious what it is, too. Perhaps it's the gearbox?
Boilerup! Go Purdue!
Posts: 4
Joined: Sun Dec 27, 2015 12:58 pm

Re: A320 Neo sound

Tue May 11, 2021 12:05 am

I'm curious what it is, too. Perhaps it's the gearbox?[/quote]

I believe you're referring to the howl from the PW1000 engines on some 320neo's and CSeries. These engines have what PW call a TALON combustor, I forget what it stands for but I'm sure it burns the fuel cleaner. The howl of these engines is created by the pressure changes in the combustion chamber when the engine is throttled up from idle. The PW4000 and 800 also make similar howling noises when spooling up and they all feature Pratt and Whitney's TALON combustors. Hope that helps.
Posts: 447
Joined: Sun Feb 06, 2011 11:56 am

Re: A320 Neo sound

Thu May 13, 2021 10:58 am

speedbird717 wrote:
The howl of these engines is created by the pressure changes in the combustion chamber...

I would call those "pressure changes" a resonance within the combustion chamber. It can destroy the engine if it gets too strong. Fortunately it is not that strong and appears only in trasient phases in PW1000 engines.

Gruß, masi1157
517 different segments on 101 airlines to 212 airports in 55 countries

Who is online

Users browsing this forum: GalaxyFlyer, masi1157 and 22 guests

Popular Searches On

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos