Cessnapimp From Canada, joined Oct 2001, 1320 posts, RR: 27 Posted (6 years 11 months 3 weeks 6 days 14 hours ago) and read 5216 times:
Hello all,
There seems to be a situation right now where an operator has lost its RVSM privileges at least temporarily. From what I read it means their flights are operating at or below FL280. I was wondering the fuel consumption rate of an MD-80 series at that flight level when compared to a normal altitude in the mid to high 30 thousands. How big would the difference be? Are we talking 10%? 20%? Many thanks!
Laxintl From United States of America, joined May 2000, 18504 posts, RR: 51 Reply 1, posted (6 years 11 months 3 weeks 6 days 13 hours ago) and read 5095 times:
Here is a comparison showing fuel burn for aircraft weight at various altitudes for an MD-83 with JTD9-219 engines. (Lbs/hour)
Cessnapimp From Canada, joined Oct 2001, 1320 posts, RR: 27 Reply 2, posted (6 years 11 months 3 weeks 6 days 13 hours ago) and read 5097 times:
Yes... all flights are restricted to FL280 and below. I don't know the specifics of why and for how long. I was curious as to how it affected comsumption rates; thank you very much for looking this up. Very informative!
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From Canada, joined Oct 2001, 1320 posts, 
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