If the concern is damage to third parties due to impact energy then would it not make sense for there to be a potential energy limit based on E=1/2MVV. This would mean higher weight lower max speed so a 750kg machine has a reduced VNE and stall based on above formula. So E goes up as a square of the speed but linear with weight. Simple if you want fast reduce weight want to go heavy go slow. May be a variable VNE/stall based on all up weight of the day. Would it be a viable idea and overcome the argument? So 600/750 x VNE/stall of 600kg machine would be max VNE/stall of 750kg machine. So if VNE is 100 for 600kg the 750kg would be 86.6 Think the maths is correct.
Last edited by horizon flyer; 8th Jan 2017 at 17:31.