"PTOBO", question from a friend

[ChristiaanJ]

EXWOK,
Never had to do Concorde "fuel-and-CG math" myself, so I take your word for it.
(I helped to build 'em, not to fly 'em.)

I would assume that when you got up to the limits, a close watch was kept on what went into the rear baggage hold, as well.
Also, to start worrying about PTOBO, you'd probably already would have "over-filled", no?
(For those unfamiliar with the aircraft, it's a Concorde trick, where you "top off" each tank with a carefully metered dose of fuel after the "high level" indication comes on. Don't know if it's done on other aircraft.)

CJ