"John Gaquin" wrote in message ...
"Gary Warner" wrote in message
news:2g7o7oF5e1unU1@uni-

Of course, when backing up a surge actuator will try to put on the
brakes, which is not what you really want.

My understanding (and limited experience) with surge brakes is that a
certain [adjustable?] amount of decelerative force is required to activate.

What "decelerative force" is there when you are accelerating? Do you
not think you can accelerate in reverse?