Mechanical Computers in the US Navy

Following on from yesterdays video post of Mechanical Principles by Ralph Steiner.
This video has lots of interesting mechanism that could be useful for my Absinthium project.
In this case these mechanisms are used for computation in the fire control systems of US Navy Warships. An interesting solution to the continuous calculations necessary to target a moving ship!
Enjoy
Keep your sightglass full, your firebox trimmed and your water iced.
KJ

Mechanical Computers in the US Navy.
Lots of good information on how calculations are performed with gears and shafts