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Forum: Tech Log

20th Jul 2015, 08:23

Replies: 16

Boeing Undercarriage Retraction

Views: 5,212

Posted By NSEU

I think it has been mentioned on the forum...

I think it has been mentioned on the forum previously. I vaguely recall a system fitted to B52's. Not sure if it's still in use.

Forum: Tech Log

16th Jul 2015, 07:25

Replies: 16

Boeing Undercarriage Retraction

Views: 5,212

Posted By NSEU

The 747-400 nosewheel de-spin is the old style,...

The 747-400 nosewheel de-spin is the old style, too.... A fire-resistant pad attached to spring metal which contacts the tyres. In the forward zone, it sometimes sounds like a circular saw cutting...

Forum: Tech Log

15th Jul 2015, 04:32

Replies: 16

Boeing Undercarriage Retraction

Views: 5,212

Posted By NSEU

During retraction, some of the hydraulic pressure...

During retraction, some of the hydraulic pressure used for retraction is ported to valves which activate the brake system to de-spin/brake the wheels. The 747-400 "autobrake" system per se, is not...

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