Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84 exptools; site whuxlm.UUCP Path: utzoo!watmath!clyde!cbosgd!ihnp4!whuxlm!mag 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