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Old 28th Jan 2008, 07:37
  #973 (permalink)  
albatross
 
Join Date: Sep 2004
Location: Canada
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I am just a stupid airframe driver so can someone tell me how they do the run dry tests.

I assume the main gearbox and inputs is placed on a sturdy test stand and with all accessories such as generators and Hydraulic pumps running underload it is run at normal cruise torque or thereabouts

Is the oil drained out before or during the test? I would assume during as we normally do not attempt aviation with the pressure at zero.

Everybody stands around behind a safety screen with stopwatches ticking away waiting for it all to come to a smoking, screaching halt.

Question is do they also do it with oil in the XMSM and fail the oil pump (s)?

I guess I am asking if the test faithfully duplicates the "real world".

Sorry if this has already been covered elswhere in the thread.
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