Gyro Horizon Indicator, Japanese Army Aircraft, Type 98 or 100 ME-109

Gyro Horizon Indicator, Japanese Army Aircraft, Type 98 or 100 ME-109This is a WWII era Gyro Horizon Indicator as used in aircraft of the Japanese Army. It appears to be either a Type 98 or 100. According to the website Funatsu Aviation Instrument Museum the Type 100 was used in the Type 1 Trainer, the Type 2 and Type 4 Fighters, the Type 4 Bomber, and the Ki 106. Our Google Translate app interpreted the date on the label as Showa 11, which is 1936. The knob at the lower left adjusts the flow of air through the

From our friend Laurent at Aircraft-Gunsights

The dial markings are clear and the glass and cases are intact

has a rotating disk with Pioneer and numbers on it for us as a course reminder

A Pelorus Drift Sight is designed to function either as a Pelorus

the level indicator contains fluid and the metal ball

made by the AC Spark Plug division of General Motors Corp

Here is a WW2-era German Gyro Horizon FI

from 0-4500

The clock is wound by turning this red knob counterclockwise from its home position

This manual is stamped on its inside title page NAS Guantanamo Bay CUBA

or patrol observer

and likely many others