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Macsm

High fuel flow...

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Hi,Is 6000 pph normal for cruise at 30,000 ft (combined 2 engines of course)? I've looked around and can't find much data on this. Just curious..regards,Macs :)

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Macs, That looks about right for two engine std ops at that cruise altitude and normal loading...accoding to the performance charts by Matt Zagoren. They are available on avsim.

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first flight hour, above 109,000 of AGW, you burn 9,400 to 10,200 pounds.the next flight hour, in the range above 109,000lbs, at FL320 M.72, 6400 pph.below 109,000 and above 95,000lbs , 6000 pph,below 95,000 and above 89,000lbs, 5400 pph..regards

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>first flight hour, above 109,000 of AGW, you burn 9,400 to>10,200 pounds.>the next flight hour, in the range above 109,000lbs, at FL320>M.72, 6400 pph.>below 109,000 and above 95,000lbs , 6000 pph,>below 95,000 and above 89,000lbs, 5400 pph>..>regardsGreetings.Not sure where you are getting your information, but first hour burn is just over 6000 lbs. Second hour is just under 6000 lbs. and decreasing by approximately 500 lbs/hr. thereafter.I too notice high indicated fuel flow on takeoff and climb. Because of the battery related problem I have yet to fly for a full hour and have not actually checked the burn vs. gauge indications.Take care,Sean

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See the FAQ re: the battery bugRegardsBob ScottATP IMEL Gulfstream II-III-IV-V L-300Santiago de Chile

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My numbers DO include climb as this will happen in the first hour.

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my numbers for climb is 3000 to 3400 lbs burn to climb from MSL to FL300, and than for 3100 - 3200pph per engine.so... 6200 + 3000 = 9200pph in the first hour.next hour is 2900 - 3000 pph per engine...

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>>my numbers for climb is 3000 to 3400 lbs burn to climb from MSL to FL300, and than for 3100 - 3200pph per engine.so... 6200 + 3000 = 9200pph in the first hour.next hour is 2900 - 3000 pph per engine...<

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