Wheel and Flap Position Indicator, 8DJ4PWE Lighted WW2 part number 1537-2F-B as made

part number 1537-2F-B as made for aircraft of the US Navy

According to the Waltham website:

With a rotatable dial engraved with the compass card graduations

The fluid in the rear chamber is absent

The N-6 was most widely used in Martin and Bendix upper turrets

Wheel and Flap Position Indicator, 8DJ4PWE Lighted WW2 part number 1537-2F-B as madeHere is a WWII era Wheel and Flap Position Indicator of the Air Corps US Army, General Electric part number 8DJ4PWE, was used in aircraft with a nose wheel (vs tail wheel aircraft). This model is equipped with a light in the upper right corner, which would have illuminated with a turn of the small knob. The position of the wheels were indicated by the 3 small window insets, one each on the nose and each wing. The indicator in each window inset would