Sign in to follow this  
Guest Jeroen November

747 spoiler sound upon landing?

Recommended Posts

Hi all,I've got a question about the sound audible in the cockpit when the spoilers deploy upon landing. For those who don't know what i'm talking about its the file PMDG747_spdbrk.wav in the soundpmdg747400 folder. What is it actually that we hear, is it the mechanical operated lever or something? Is that why it is only audible upon landing or aborted takeoff when reversing thrust and not e.g. by fully deploying the spoilers manually?Greets,Jeroen

Share this post


Link to post
Help AVSIM continue to serve you!
Please donate today!

It is the auto-spoiler/speed brake servo/motor moving the lever to the extended position, therefore you won't hear this if you manually operate the spoilers/speed brake in-flight.

Share this post


Link to post

It's highly unlikely you would hear any spoiler sounds on landing because of the thrust reverser, and wheel and brake sounds on rollout. Especially up in the cockpit.

Share this post


Link to post

Thanks for the info guys!Greets,Jeroen

Share this post


Link to post

I've seen many 747 cockpit videos in which the sound of the aforementioned spoiler handle servo is quite audible - perhaps because it kicks in immediately upon touchdown, before reverse or braking starts.regards,Markhttp://www.precisionmanuals.com/images/forum/747400.jpgXPHomeSP2/FS9.1/3.2HT/1024mb/X700pro256

Share this post


Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this