Accelerometer, G-Meter, Type B-4, 0-9+ G's, Bendix, Boeing B-47A Bomber C-46 The glass and case are

The glass and case are intact and the markings are in perfect condition

Based upon information from a warbird fan in Spain

for the USAF Autopilot Type E-4 (aka as the Sperry A-12 Gyrosyn Automatic Pilot System)

Requires the correct electrical input to operate

Aichi E13A Type Zero Reconnaissance Seaplane aka "Jake"

Accelerometer, G-Meter, Type B-4, 0-9+ G's, Bendix, Boeing B-47A Bomber C-46 The glass and case areThis electrical aircraft Accelerometer (aka G Meter) is a Type B 4, part number 3416 3A A1, made by Bendix for an order by the US Air Force dated 1949 (see serial number prefix). The knob rotates a small indexing pointer around the perimeter of the dial (sitting at 5 G's in the main photo), which may be a limiter or a trigger for a warning indicator. This accelerometer is clearly intended only for aircraft expected to experience positive G's as there