crab,
The Wessex 2,4,5 and 60 all had a full authority analogue computer, with a double-datum over speed protection, which as you say froze not infrequently but could be reset. I think it was the same computer on the Whirlwind but when I was flying them in Nigeria we had so many computer problems we just flew them in manual the whole time. It took a little getting used to initially as, of course, there was no throttle correlator.