Topic Author
Posts: 136
Joined: Thu Jan 03, 2002 11:29 pm

Reverser Deployment Mecanisam

Mon Mar 18, 2002 11:27 pm

What moves the cowling back on reverse thrust deployment? Is it moved by hydraulic rams, pneumatic pistons or is it on a screw jack (like flaps)?
Posts: 1319
Joined: Wed Jul 05, 2000 11:37 am

RE: Reverser Deployment Mecanisam

Tue Mar 19, 2002 12:07 am

Usually engines using Hyd TRs (RB211s used on 757s or CFMs used on 737s) use actuators while those using pneumatic TRs (Cf6s used on 767s, Dc10s) use Jackscrews driven by Flex Shafts.
Posts: 3549
Joined: Tue Oct 26, 1999 11:34 am

RE: Reverser Deployment Mecanisam

Tue Mar 19, 2002 12:19 am

RR Spey & Conway - Pneumatic

P & W JT3D - Pneumatic

CF6, JT9D, RB211-524 - Screwshafts driven by pneumatic motors

CFM56, RR Trent 500 & RB211-535 - Hyd rams

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