Altimeter AAU-8/8A 35,000FT KC-97 Radial arms or vanes attached

Radial arms or vanes attached to the card dampen the swing of the needle

Do your own research to confirm

This 176-page Aircraft Recognition Manual for the Observer was provided to personnel of the Ground Observer Corps

Then if you press the left button again it will reset

When used in conjunction with a suitable nondirectional (vertical) antenna

Altimeter AAU-8/8A 35,000FT KC-97 Radial arms or vanes attachedThis is a Cold War Vietnam War era Altimeter, Type AAU 8 8A, made by Aerosonic, part number A35 AUU 8A A, indicating altitude to 35,000 ft, used in aircraft of the US military. The exact type of aircraft has not been determined at this time, but is similar to that used in the AH 1 Bell Cobra Attack Helicopter of the US Army. Given the maximum altitude application of 35,000 ft, it make sense that this may have been specified for helicopters. The knob