Posted by Mark on December 6, 2017, 19:30:01, in reply to "Battle Navigation" 220.127.116.11
By WW2 the analog computers had developed to the point where the many sensors (wind speed, wind direction, ship speed, currents, rudder setting, compass bearings, etc) could all be incorporated via gears and cams into a pretty good estimate of the ships position. While other ships' positions weren't included, your ships position against a fixed point (coastline) was pretty accurate. Here are links to photos of the plotting table on board USS Texas. Notice the fine "watch maker" gears and pinions.