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echo: aviation
to: BILL WUNSCH
from: JIM COLE
date: 1997-07-08 11:11:00
subject: Windmill starts

BW>I was aware that there were approved procedures for ferrying a 4
BW>engine jet aircraft with only 3 operating engines.  I believe it was
BW>on this echo a  while ago that we discussed the takeoff loss of one
BW>where  there appeared to be some confusion on the proper 
BW>procedure.  But I was surprised when someone posted on here 
BW>that they saw a prop job firing up the fourth engine during 
BW>a three engine takeoff - wonder is that was approved.
Just in passing Bill I would think that starting the engine on TO would 
be an unwise thing to do.  If it was feathered you are in good shape and 
to start it you have to unfeather it and this would cause additional 
drag. (something I certainly wouldn't want).  Again to answer your 
wondering I would highly suspect that it was not approved and a really 
dumn thing to do.  Even with an Engineer starting the engine the change 
in control forces and yaw and WHATEVER would be more than I would want 
to deal with.  If and I say IF someone was going to do it I would 
recommend taking off with it feathered and obtaining a level cruising 
altitude and attempt a restart with the windmilling engine.  In Jest of 
Course.
I know that 3 and 4 engine aircraft are ferried but I know of no 
proceedure that would approve a 2 engine (single engine ferry).
___
 X CMPQwk 1.4 #1684 X "If the enemy's in range, so are you."
--- Maximus/2 3.01
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* Origin: The Politically Incorrect! [OS/2, V34+] (1:106/1010)

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