Ages ago, I read a book called "The Control Tower." It was about a Concorde operating between the UK and Miami, home of said Tower. Sorry, can't remember the author, or the publisher - just as well.
On one trip to Miami, he's running desperately short of fuel, so the pilot nips down into the hold and starts jettisoning freight - tons of the stuff. This, of course makes all the difference. After that, it begins to get a little bit far fetched.
It's a hilarious book, for all the wrong reasons, highly recommended.
Arbottle - beware! Good luck.