Japanese Aircraft Performance & Characteristics TAIC Manual No. 1 C-118 the system could vector interceptor

the system could vector interceptor aircraft to an inbound threat in real time

The sight tube has a level along its body

This example has a serial # prefix of AF-53

measuring their angles of elevation

The two neon bulb holders are in place

Japanese Aircraft Performance & Characteristics TAIC Manual No. 1 C-118 the system could vector interceptorThis is an original WWII era intelligence manual published by the Technical Air Intelligence Center of the US Navy covering the latest information regarding aircraft of the Japanese Army and Navy. Also included is information on Japanese aircraft engines, armament, and radio equipment. It is in good condition given its age.