On reading the posts on gear retraction and minimum forward airspeed for aerodynamic control why is gear retract based on height should it not be on airspeed i.e. minimum airspeed for control if TR failure then it's down to help cushion the landing.
I believe autorotates are difficult to judge especially at night how about a belly air bag, triggered by under carriage compression rate or a G sensor and why has no one thought of anyway of adding anti torque at low speed if TR failure. Maybe a smallish parachute fired sideways to slow the spin triggered by a yaw rate and time sensor. Just a bit of brain storming.