Come on, Brakedwell, put us all out of our misery. I believe there were settings of "Brake Dwell" and "Superfine" on the props, but I don't understand the significance. I was also led to believe that some confusion over their selection may have been a factor in the overrun at Khormaksar, photos of which I posted earlier on in this thread. No prejudgements, I was only a helicopter pilot at the time (the shadow of the Wessex can be seen on the wing in one of the photos).