Drift Sight, Mk II-B Pelorus, WWII US Navy Aircraft NOS Short Stirling See the photo of the

See the photo of the Sherman Tank with the driver's and assistant driver's hatches open

The black screen behind the horizon has a bit of corrosion centrally

These systems were used in versions of the WWII-era Air Corps US Army Douglas C-47 Skytrain transport

but remains in decent condition

It appears to be published for use in education or public affairs*

Drift Sight, Mk II-B Pelorus, WWII US Navy Aircraft NOS Short Stirling See the photo of theHere is an early WWII era US Navy aircraft Mk II B 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