I‘m with the 269, 47, Enstrom advocates on this. The less correlation aid for ab initio learning, the better. Even the R22 is not a very good aircraft for teaching correlation as the aircraft is operated in a power range where little or lag/overreaction happens - and it has a governor on top. The Robbies also come into balance more easily than a 269, even if flown quite badly. The hughes is easy to fly, but not so easy to fly nicely. Personal impression.
Part of the case for piston is not just cost: Faster engine response is an added safety margin, helping to recover wrong inputs, especially helpful if a low RRPM exercise is poorly done or the wrong inputs made in a simulated engine failure, and using throttle to manipulate yaw is very direct when teaching torque reaction for yaw issues.
Last edited by PPRuNeUser129638; 2nd July 2023 at 13:56.