PPRuNe Forums - View Single Post - Are Flex / De Rated take offs safe?
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Old 20th May 2008, 21:58
  #77 (permalink)  
Denti
 
Join Date: Mar 2001
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Increasing ground roll, decreasing stop distances, decreasing reaction times to a crisis in furthurance of saving a buck on overhaul 5 years later seems counter intuitive...especialy with 200 people in the back....
The thing is, for us it is indeed years later. For your airplane operated to the same standards and usage as an airliner it would be twice a year since we actually use our airplanes to do what they were build for, flying. We have to use our aircrafts (and their engines) up to way over 6000 hours a year, with an overhaul interval of 3500 hours that you apparently need because your engines run out of limit that fast (i wonder why) we would have to keep around one extra pair of engines in the shop per every two airplanes just to keep them flying, and that would need around 7 to 20 million bucks (depending on type) of additional investment just for a pair of them.
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