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Old 29th Sep 2018, 01:39
  #1097 (permalink)  
Mach E Avelli
Join Date: Jan 2008
Location: All at sea
Posts: 1,706
For Con de Rod’s edification. A spurious rudder boost is not a big deal. It CAN be overpowered by a 90 lb weakling. It was only mandated by the FAA because test results showed B200 rudder forces when an engine failed were beyond the certification limit (can’t remember the limit, about 100 lb of force I think.)
All it does is assist the pilot by relieving some, but not all, of the foot load until the rudder is trimmed. Presumably they don’t want it relieving all of the load because it could mask the severity of engine power loss.
But yes, if the rudder boost system malfunctioned it could add to some momentary confusion, though unless accompanied by some other event or incorrect pilot action unlikely to cause the loss of control seen in this accident.
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