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Old 3rd March 2006 | 20:00
  #22 (permalink)  
ZQA297/30
 
Joined: Jan 2002
Posts: 297
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From: The Far Side
VR-HFX. The two best aircraft I ever flew were both Lockheed. The L-1011, and the L-188. Both powered hydraulic controls, both a dream to fly. Both with multiple redundancy on all major systems. Pilots dreams, engineers nightmares.

Having given the manuals away years ago, from very rusty memory.
Re: YAW SAS(stability augmentation system)
basically multiple yaw damping, and also used for runway alignment in autoland mode. I vaguely remember something about rudder fusing, but better refer to 411A -his memory is better than mine.

Roll speed brake was the multi-mode activation of the spoilers by a VERY complicated hydraulic mixing valve. Differential spoilers=roll, simultaneous spoilers =speed brake.
There was also MDLC (Mach direct lift control) which came into play above M.65 and I think from the same mixing valve.

LEM, the "difference" made by DLC was that you were not constantly jockeying attitude and throttles in gusty conditions, the attitude just stayed the same and the aircraft's rate of descent varied with stick input only. As 411A said, do not flare and then push as per Boeing, because you would just crunch the aircraft on. (sink increased dramatically!)

Last edited by ZQA297/30; 3rd March 2006 at 20:17.
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