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| Re: Boeing jet to break distance record (74220) | |||
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Re: Boeing jet to break distance record |
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Posted by R68A - 5200 on Thu Nov 10 12:33:51 2005, in response to Re: Boeing jet to break distance record, posted by aem7ac on Thu Nov 10 11:24:44 2005. It is cheaper to fly one long non-stop flight. Rather then multiple flights. The fuel stop wastes money. Your plane will end up on the ground not doing anything while it fuels. You will waste more fuel taking off multiple times. Say it takes about 150nm to reach the top of cruise. You're better off burning 10000lbs/hr on a 767 for that 150nm then more than burning twice as much as that and traveling at a slower ground speed too. You also put alot of extra cycles on the airframe. The reason cargo flights stop in Anchorage is because cargo weights ALOT more then passengers. Cargo planes are generally loaded right up to the Maximum Zero Fuel Weight before going. They exist to get things from point A to point B and they will want to get as much in there as they can and so they are designed so. A 747-400 Freighter has a MZFW of up to 635,000lbs. A passenger 747-400 on the other hand 542,500lbs. When a plane gets converted for freigher service, it's not only a simple reconfiguration of the cabin, but also strengthening of the deck floors and wings and gears for these more intensive applications. Think about it, on a passenger plane, the space between the heads and the bins are empty space. On a freighter, it's filled with pallets and/or containers that are the height of the cabin. |
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