A World War II Royal Air Force Astro Compass MkII, with Air Ministry markings, number 6A/1174 3-H, 22,6 cm high in original grey painted fitted box
Used by pilots and navigators to determine accurate true heading by the sun or stars in arctic regions. It is well suited for aligning a boat’s compass while away from shore-based magnetic interference. It is also useful to celestial navigators and amateur astronomers for identifying stars. It also functions as a pelorus with extremely fast operation.
The astrocompass functions by means of measured movement in three independent axes. The uppermost member contains a peep sight for stellar use and a shadow bar for use with the sun. The main platform is adjustable by reference to two integral spirit levels while mounted on the base.
The compass is in very good condition and everything is working and the wooden box have some storage use – It was examined in Dunstble in Great Britain and have the label for packing it right in the box.
A piece of Aviation history