Attitude Gyro Horizon Indicator, A4D-1 Skyhawk F-104 The center knob adjusts the

The center knob adjusts the indexing indicator for the view angle of the pilot

“Radio Set AN/ APN-2 is an airborne radar interrogator / responder of the "Rebecca" type that will enable an aircraft to home on ground radar beacons of the "Eureka" type such as AN/PPN-1 and AN/PPN-2and the heavier beacons

A backlight would glow from the perimeter of the dial and illuminate the lettering

0-650 Knots

5 inches across and ~7 inches deep

Attitude Gyro Horizon Indicator, A4D-1 Skyhawk F-104 The center knob adjusts theThis is a 1950 60's era Attitude Gyro Horizon Indicator as used in early versions of the US Navy Marine Corps Jet Fighter Attack Aircraft Douglas A4D 1 Skyhawk, made by Bendix to a Douglas spec (see data label). See diagram of A4D 1 instrument panel from its flight manual dated 1962. This indicator has a service label of Naval Air Station (NAS) Alameda CA dated 1967. The left knob adjusts the indexing 'aircraft' within the dial to align the