Interested to see the negative comments regarding the ergonomics of the beam compass display. Always remember what a pain in the butt it was to change it on the Vulcan. Perhaps this explains the reason MFS wasnt fitted to the herc when Mk10b autopilot was installed. The sperrys C12 system seemed to be cheaply made but it worked, took up alot less space and was very easy to read and still had a "track" facility. I suppose the older hercs must be the last carriers of Mk10.
Just a final thought, I was once told the the rate/rate gyro technology was "liberated" from the germans post WW11 and handed to Smiths for development