Airspeed / Mach Speed Indicator, US Air Force Type ME-4 F-101 Voodoo This is a vintage Cold-War-era

This is a vintage Cold-War-era Bomb Bay Tank Fuel Quantity Indicator

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

Here is an Air Navigation Computer as used by US Air Force navigators from 1940-~1980 for dead reckoning navigation

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

This is a complete set that includes the optical periscope

Airspeed / Mach Speed Indicator, US Air Force Type ME-4 F-101 Voodoo This is a vintage Cold-War-eraThis 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