The winner of our Loss of Separation competition is Robert Upson, from Stevenage in Hertfordshire, who guessed 678 gallons, which was just 1.75 gallons away from the judge’s figure of 676.25 gallons. Robert, your prizes will be winging their way to you very soon.
Many thanks to those who entered.
Conrad Williams 
Thanks for the books and signed picture, Made my day as it’s the first thing I have won in about 20 years, would have been bang on if I hadn’t added 2 people because I wasn’t sure if cabin crew included pilot and co pilot.
I am now a slightly less miserable git.
Cheers.
Ammendment
Flight attendants not cabin crew, my 2 year old son decided to press enter hence multiple posts:)