Stopwatch, Type A-8, Navigation Watch for Ground Speed 1942 "Jitterbug" w Box BT-12 beggarly existence

beggarly existence

but it is an exceptional artifact from WWII

and the Degrees Steering indicates the direction toward the target from the current course of the aircraft

as documented in the F-86F Maintenance Manual dated Sept 1954 (see photo of page from this manual showing the instrument and the AN #)

This example is new old stock

Stopwatch, Type A-8, Navigation Watch for Ground Speed 1942 "Jitterbug" w Box BT-12 beggarly existenceHere is an authentic WWII era aircraft navigator's Watch, Navigation (Ground Speed) Stopwatch, Type A 8, made by Elgin to Air Corps US Army spec #94 27749. With a serial # AC42 7094, indicating manufacturing year of 1942. Type A 8 stopwatches were used in any WWII aircraft with a navigator, such as heavy (B 17, B 24, B 29) and medium bombers (B 25, B 26) and large transports (C 46, C 47, C 54). The outer ring of the dial counts up to 10 seconds and