Shawn,
But we don't ever require it in all IFR training helicopters, like R-22/44, Schweizer 300, etc.
If not force trim, what is the system in a Schweizer 300 series called? I understand the Robinsons don't really have a trim system, but the hat trim button, motors, and springs in the 300 is better than none. I always liked being able to trim the 300 for a reasonably stable forward flight without the need to make the cyclic grip a [semi]permanent part of my hand.
I'm not saying it's a force trim - I'm just curious what it's called if not.
Bob