In fact the use of revese at Idle was first used in anger on Concorde's 1st ever commercial flight. . .. .On the trip back from LHR to Bahrain they were getting to ahead of where they needed to be during the decent due to the fact that cooler air was allowing the engines to produce more thurst and that the tail wind was stonger than expected. . .. .So apparently at the suggestion of Test Pilot Brian Trubshaw, who was a CAA observer on the flight, they used the engines in idle reverse to increase the rate of decent so a straight-in approach could be made to the runway and hence no delay on the foirst ever BA service!. .. .-Edited to correct the details, once I found then in a book.. . . . <small>[ 27 March 2002, 17:54: Message edited by: Gordo. ]</small>