Ammeter, 100mA, WWII Japanese Navy Aircraft S2 Tracker from 400-3600 RPM

from 400-3600 RPM

25 inches square by ~7

Used in most US bombers during WW2

The C-1 Autopilot system was used extensively in WW2-era bomber aircraft of the US Army Air Forces

and medium bombers and transport aircraft

Ammeter, 100mA, WWII Japanese Navy Aircraft S2 Tracker from 400-3600 RPMThis is a Japanese Ammeter, 100mA. It is presumed to be a WWII era indicator used in aircraft of the Japanese Navy judging from the anchor symbol on its face (lower left, below pointer). This has not been verified. Aircraft that may have used this have not yet been identified. It is in good condition given its age. Measures 2. 5 inches diameter and ~1. 5 inches deep. The glass and case are intact and the lettering is distinct.