losing 10.000 in 10 miles is readily achieved in a B737
used to do that regularly coming into Cairns from the west for a circuit if conditions were turbulent .. over the upwind end (plus a bit) at 10-11,000 and then down she went .. although I preferred to use 25 and a bit more speed so that we could comply with SOP re spin up ... gave the punters a much more comfortable ride than hammering into the circuit normally ... and, just as importantly .. gave us a more comfortable ride.