Ignition Switch Type B-6 Dual Engine WWII F6F Hellcat The instrument has a test

The instrument has a test button at the bottom right corner to check the functioning of the indicator

the A-2 indicator was used in early versions of fighter P-47 Thunderbolt (see image of the P-47 instrument panel from its flight manual dated 1943) and transport C-46 Commando

also labeled with an Allison Engine part number 6734355A

which pull a brace attached to the spring-loaded pointer

Ignition Switch Type B-6 Dual Engine WWII F6F Hellcat The instrument has a testThis is a WWII era Ignition Switch Assembly, US Army Air Force Type B 6, for a dual engine aircraft, made by Bendix Scintilla for Delco Aviation, part number 10 30910 1. The B 6 ignition switch has two switches, one each for the left and right engine, and a master switch in the center. The master switch is switched by pulling (ignition off) or depressing (ignition on) the center post, intending to be able to kill both engines simultaneously. The knob