BBC News - Olympic torch: Top pilot's 'most precious cargo'
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The flame is in four lanterns which sit in two specially-made metal cradles secured to the chair by a seatbelt and a Velcro strap.
In seat 1C will be the fire warden - a Metropolitan Police officer trained in firefighting - who will monitor the flame for the duration of the 1,500-mile flight.
Shame one of the airport fireman can't be on board...