Recording Base for Pelorus Drift Sight Mk IIC US Navy Short Sunderland the top timer is running

the top timer is running (minutes

with airspeed indication from 60-550 km/h

made by the Pittsburgh Equitable Meter Company (which made gas meters

The white main pointer rotates clockwise as the airspeed increases

The gyro is uncaged when the knob is pulled out

Recording Base for Pelorus Drift Sight Mk IIC US Navy Short Sunderland the top timer is runningThis is a WWII era Recording Base for the aircraft Pelorus Drift Sight Mk IIC as used in aircraft of the US Navy. The drift sight head would be mounted to the center of the base ring. It is in very good condition given its age. It comes with a roll of paper already installed. Measures ~ 7 inches x 5 inches x 3 inches. If you have a Drift Sight Head in your collection, this is an essential companion item.