[ex_RAAF_Elecfitter]

I was flying the Sea Fury MkI and I ordered my flight to "loiter here" to allow the second flight to catch up and group and my fight including myself on Autopilot did a series of prop stalls, ie climbing verticle until stalling out, this went on until I commanded next waypoint. Usually when commanded to loiter here the aircraft enter a series of turns, I have never seen this climb and stall to loiter behaviour before. Is it deliberate?