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Old 21st May 2019, 22:43
  #17 (permalink)  
safelife
 
Join Date: May 2006
Location: FL510
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Our company had a visit from CFM, and their take was the optimum cool down time was 15 minutes.
Anything shorter eats into engine's life.
3 min is a bare minimum, any further minute helps increase engine life.
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