737-300 flight controls

newmei

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I was flying on British Airways--Germany on vacation a few months ago. I noticed that the ailerions had servo tabs, is the -300 manual servo assisted or hydrolic? That one kinda got me.
 

generaltso

Marcy Projects
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Manual servo assisted for the ailerons and stab, I believe. They can be used with a total loss of hydraulic fluid. But with normal operating system, you do get hyrdraulic assist. The rudder is purely hyraulic, though, and has a backup hydraulic system.

The servo's are the aileron trim. Anyone wanna back me up here?
 

newmei

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Thats sort of what I thought. I knew certain airplanes were purely servo assit like the MD-80 and the Twin Otter, but I was'nt sure on the 737.
 

pb4ufly

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I thought all the Flt Controls (incl rudder) manual with hydraulic assist? I believe they all work with zero hyd pressure.
 
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