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From: mag@whuxlm.UUCP (Gray Michael A)
Newsgroups: net.auto
Subject: Re: re:my car is slower than yours
Message-ID: <630@whuxlm.UUCP>
Date: Wed, 26-Dec-84 15:20:56 EST
Article-I.D.: whuxlm.630
Posted: Wed Dec 26 15:20:56 1984
Date-Received: Thu, 27-Dec-84 03:31:15 EST
References: <19@tekig5.UUCP> <500055@uok.UUCP>, <756@oliven.UUCP> <770@watdcsu.UUCP> <487@tpvax.fluke.UUCP>
Organization: AT&T Bell Laboratories, Whippany
Lines: 19

> 
> Anyway, I know that a 747 can fly for at least 12 hours without refueling
> because I was on once that did so. If I multiply 12 hours by 8 tons per
> hour, does that mean that a 747 can hold over 96 *_TONS_* of fuel? Awesome. 
> 
> This got to be fun, so I did some more calculations:

When I worked in the airline industry the 747s usually took off at the gross
weight of 750,000 pounds (375 tons), and the world record was held by a 747
that lifted off at 820,000 pounds.  (The C-5A has only managed 802,000 pounds).

I don't remember exact numbers, but the empty aircraft (minus fuel and cargo)
weighs about 350,000 pounds, a load of passengers with baggage weighs about
75,000 pounds, fuel load is commonly 250,000 - 300,000 pounds, and you
fill whatever ACL (Allowable Cabin Load) you have left with mail or
overnight packages.

Mike Gray, BTL, WHippany