Astro Compasses were used during the Second World War by pilots and navigators to calculate true North and heading by the sun or stars. Astro compasses of this size and type were used onboard larger multi-crewed Allied aircraft such as the Avro Lancaster, Bristol Beaufort and Consolidated Liberator.
Description
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.
A WWII-era Astro Compass, Mk II, in its original bakelite case, used for celestial navigation. Used across many versions of US Army Air Force aircraft with navigator crew during the era, such as bombers B-17 Flying Fortress, B-24 Liberator, and B-29 Superfortress, and transports C-46 Commando, C-47 Dakota, and C-54 Skymaster. The compass would be placed in a fixed mount on top of the instrument panel or in the navigators compartment, and sighted to a known star, e.g. North Star. The bearing of the aircraft can then be determined by using/aligning the indexing scales on the components of the Astro Compass.
This Astro-Compass is in a Bakelite box which means that it is made in the United States.
If it was in a wooden box it would have been made in Great Britain
Please DO NOT TEXT my phone is a landline and as such does not text.