Engine Gage Unit for US Army Air Force & Navy Fighters, 1944, AN-5773-1 C-130 25in square

25in square

of the Velocom design

Gyro Horizons

This is a dual Oil Pressure indicator as used to measure oil pressure in the left and right hand supercharger sumps in the US Air Force C-121 transport version of the Lockheed Constellation

This one has a service label "NARF ALAMEDA" (Naval Air Repair Facility)

Engine Gage Unit for US Army Air Force & Navy Fighters, 1944, AN-5773-1 C-130 25in squareThe AN 5773 1 Engine Gage Unit was used across a variety of aircraft of the US Army Air Force and US Navy during and after WWII. In particular, the AN 5773 1 made by Electric Autolite (aka Motometer) part number 10322 A was used in fighters P 38L Lightning and P 63 A & C Kingcobra according to the US Army Air Force's Maintenance Interchangeability Cross Reference Chart TO 00 45 1 dated Feb 1945. This example has a serial number prefix of AF 44,