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Thread: What determines spool up time?
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Old 28th August 2014 | 23:22
  #28 (permalink)  
grounded27
 
Joined: Sep 2010
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From: earth
Just read that RR is developing a large turbine engine with variable pitch fan blades, may be to compensate for the extremely large fan blades we are seeing and the need to keep spool time down. No doubt efficiency is the largest goal.
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