A interesting feature of the roo is if it you install a 20 lbs+ thrust engine, the take off runs are of equal lenght or longer than a small (12 Lbs) turbine roo... this happens because of the high thrust line of this plane. the stronger engine makes the plane harder to rotate and point the nose up so the advantage of a faster acceleration is cancelled because it is harder to rotate and more take off speed is needed , also this stronger engine makes landings longer too and more difficult because of the higher residual thrust. (at least for the less experienced pilots)...


Rgds, Enrique