An excellent suggestion Nick. I remember we used to practice the airspeed thing for the UH-1H with fully jammed closed anti ice vanes (I think) which gave a max power of 25 psi (about 50% of power for those more modern chaps). I can see it would work equally well for this scenario. Great tip - thanks.. .. .twistgrip: I see no problems running on with the skid equipped aircraft, and in fact used to practice just that in the UH-1H and 212/412. As to loss of tail rotor authority - I agree with you on the UH-1H as that could run out of left pedal with 100% RRPM, but not so on 212/412 & 205A1. I believe you would get to an unrecoverable RRPM before noticeable left pedal loss, but this is only a theory as I have not bled them to that extreme (thats what Nick gets paid to frighten himself doing!)