Drift Sight, Mk II-B Pelorus, WWII US Navy Aircraft Sally Bomber This is a Gyrosyn Compass

This is a Gyrosyn Compass Master Indicator Type C

25 inches diameter and ~4inches deep

Across the inside of the ring are two horizontal

the system was designated AN/ARN-11

The A-5 Automatic Pilot was used primarily in WWII-era bomber aircraft of the Air Corps US Army such as the Consolidated B-24 Liberator (see photo showing the location of the panel in the B-24 cockpit)

Drift Sight, Mk II-B Pelorus, WWII US Navy Aircraft Sally Bomber This is a Gyrosyn CompassHere is an early WWII era US Navy aircraft Pelorus Drift Sight. A Pelorus Drift Sight is designed to function either as a Pelorus, for taking bearings on objects, or for improving dead reckoning aircraft navigation by measuring the angle between the heading and the track of an airplane. It consists of a small 'telescope' viewing vertically towards the ground, angled toward the direction of the aircraft. When viewing the ground through the scope while