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Old 14th Feb 2012, 04:55
  #23 (permalink)  
FH1100 Pilot
 
Join Date: Nov 2006
Location: Pensacola, Florida
Posts: 770
Received 29 Likes on 14 Posts
21st Century, please try to stay on point, okay?

I asked:
What is the emergency procedure for loss of oil pressure in one of the 609's engines?

21st Century replield:
If you were enroute the situation would be handled by routine checklist use. If the low oil pressure was accompanied by high oil temperature and/or the appropriate CAS warning the engine would be shut down and the flight continued to a safe landing location. The difference between a fixed-wing a/c and a tiltrotor is that it does not exhibit the same asymmetrical thrust in OEI ops that would occur in an aeroplane due to the fact that the proprotors are interconnected via a cross shaft that allows both sides to continue turning at the same steady RPM with the remaining engine driving them.
So, no engine oil pressure is really no big deal then, is that right? So, there is a sprag clutch then? A sprag clutch that allows the proprotor on the shutdown engine to turn without back-driving the engine? Because we sure wouldn't want an engine with no oil pressure being driven by a prop. Would we?
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