For training we use 5ft hover power as the reference for take-offs.If simulated max pwr is the same as hover pwr, a cushion creep is possible. For an IGE towering take off 5-10% over hvr pwr is required. For an OGE take off, a minimum of 10% over hvr pwr is needed. A figure of 10% less than hvr pwr is a suitable figure to use as a max for teaching limited pwr running landings - it ensures that the run on speed is not excessive.