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Old 7th Jun 2008, 03:46
  #33 (permalink)  
Old Fella
 
Join Date: Feb 2008
Location: Wingham NSW Australia
Age: 83
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Reverse Thrust

DW, My comment was in support of Stilton who had disagreed with your statement that "it makes no difference to landing distance and saves significantly on brake wear" if idle reverse thrust is used rather than full reverse. Qantas SOP's did not forbid the use of Full Reverse and, in fact, specifically stated that if airmanship dictated the use of full reverse it should be used. A small, but significant point also in the Qantas accident was that the F/O was the handling pilot and had initiated a go-around. The Captain, when the wheels touched, decided unannounced to cancel the go-around and conduct a full stop landing. In so doing, he moved only three of the four thrust levers to "idle", leaving one in the advanced position it had been placed by the F/O when initiating the go-around. This engine reached 1.50 EPR whilst the remaining engines were at idle before it too was retarded to idle. The decision to cancel the go-around and the unannounced taking over by the Captain only added to what was already an unsatisfactory situation which had developed early in the approach. Incidentally, full pressure manual braking gives more braking effort than does Max Auto Brake. I have studied the report closely, due in part to the fact that three of my family were on the flight. I would thoroughly recommend it as required reading to any pilot.
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