Airspeed / Mach Speed Indicator, US Air Force Type ME-4 F-101 Voodoo the aircraft is at its

the aircraft is at its maximum allowable airspeed or maximum allowable mach speed

It appears that the components may be original and untouched

This indicator has a service label stamped April 1945 on its rear

This is a fine example of a Cold War-era

local pick-up is available in the San Francisco Bay Area

Airspeed / Mach Speed Indicator, US Air Force Type ME-4 F-101 Voodoo the aircraft is at itsThis is a Type ME 4 Air Speed Mach Speed Indicator with Maximum Allowable Indicator as used in the Cold War and Viet Nam War era's US Air Force Fighters F 100 Super Sabre and the F101 Voodoo. See images from their flight manuals. The indicator displayed airspeed from 60 850 knots, and mach speed from 0. 5 to 2. 2 mach. The knob, when rotated, adjusted the air speed index pointer along the perimeter of the airspeed scale. The red maximum airspeed