Battenberg Course Indicator Mk 5 in Wood Case Wellington 569432" and "General Electric Canada"

569432" and  "General Electric Canada"

5 inches diameter by 2

The loop was rotated by a control panel (such as the MN-28

and P-38 Lightning

Battenberg Course Indicator Mk 5 in Wood Case Wellington 569432" and "General Electric Canada"Here is an original naval Battenberg Course Indicator Mk 5. The Battenberg course indicator is a mechanical calculating device invented by Prince Louis of Battenberg in 1892 for taking station on other vessels whose range, bearing, course and speed are known. By extension, it has a range of other functions related to relative velocity calculations. A number of versions of the device were produced and it proved particularly useful for station keeping,