Originally Posted by
Loose rivets
Hinged was the wrong word. The axis of rotation I suppose. Right now the H-Stabilizer rotates as though it is hinged well towards the rear. This means it is unstable in the case of failure, though I don't think this has happened but this instability means the load on the jackscrew is almost always there in one direction or another.
I'd be very surprised if there is/was much scope for redesigning the stab pivot and/or the jackscrew geometry in a way that would significantly reduce the aerodynamic loads on the jackscrew (and therefore on the trim wheel).