On 9/7/06, Adam Maas, discombobulated, unleashed:

>Other way around actually. Passenger Aircraft are cheaper to operate, 
>and longer ranged. Take the Passenger and Freight versions of the 
>747-400ER. The Passenger version can move between 416 and 524 passengers 
>depending on configuration, plus 4800-5600 cu ft of 
>freight/baggage(Based on passenger configuration) 14,205km in one go. 
>The Freighter version can move 112 tons, with a aggregate total of 
>31,967 cu ft of space (less for palletized cargo, which is the typical 
>method of shipment) but only has a range of 9200km, or it can carry 123 
>tons of a similar sized cargo for greatly reduced range. It does use 
>approximately 6500 gallons less fuel in a max range flight, but that's 
>10% or so less fuel to go more than 30% less far (Freighter has 57,285 
>US gallons capacity to the 63,705 gallons the passenger version carries) 
>. And fuel is the primary operating cost for aircraft. So you've got at 
>a minimum a 30% efficiency advantage here, and quite possibly more (Due 
>to palletization, which costs max load  and size in favour of 
>significantly enhanced speed). Note that most small air freight goes via 
>passenger aircraft, one reason why it's much cheaper.

Adam, you're beyond redemption there lad. 

-- 


Cheers,
  Cotty


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