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The "windy" sound coming from 737NG after takeoff

Posted: Sun Nov 22, 2020 7:55 am
by Trimeresurus
You can hear in the 3:44 in this video: https://youtu.be/R1dS-ZqG_Ps

Is it the wind flowing around the retracting landing gears? It's a weird sound only heard in the 737, just like the barking HYD pump of A320

Re: The "windy" sound coming from 737NG after takeoff

Posted: Sun Nov 22, 2020 11:44 am
by Horstroad
Trimeresurus wrote:
Is it the wind flowing around the retracting landing gears?

Probably the nose wheel spin brakes that stop the rotation of the nose wheels after retraction.

Here is a picture:

Image

Re: The "windy" sound coming from 737NG after takeoff

Posted: Sun Nov 22, 2020 1:58 pm
by AvgWhiteGuy
I have 15 years of NG flying and will confirm that sound is most definitely the nose wheel "snubbers," stopping the wheels in the wheel well. When I read this, I thought there was a chance it was the mains being retracted or deployed as the airflow around the gear when it is just below the wheel well makes some interesting noises too, especially above 210 KIAS.