Aircraft Clock, 8-Day, AN-5743-T-1A Korean War slips into the frame on

slips into the frame on the front of the panel

which when turned rotates the red pointer and the corresponding mach number

displayed the remaining fuel quantity in each of 7 fuel tanks by turning the knob to the desired tank

better than having no aids at all

Aircraft Clock, 8-Day, AN-5743-T-1A Korean War slips into the frame onThis is a Cold War era 8 Day Aircraft Clock AN 5743 T 1A made for aircraft manufactured by Douglas Aircraft Corporation, as evidenced by the order number prefix "DA". The serial number prefix of "51" is indicative of a manufacturing order dated 1951. May have been used in the Douglas Skyraider attack aircraft. The adjustment winding knob pulls out and adjusts the time, however, the clock only runs for several seconds. It likely needs servicing by a