Power Venturi Tube, Double Throat, AN5807-1, Type B-4A Short Stirling and post WWII

and post WWII

De Florez championed the use of "synthetic training devices" and urged the Navy to undertake development of such devices to increase readiness

as appeared in the Co-Pilot's Panel on the post WW2-era Boeing B-50D Superfortress Very Heavy Bomber

were naive

as used in aircraft-carrier-based Grumman Cougar F9F-5 and North American Fury FJ2 Jet Fighters

Power Venturi Tube, Double Throat, AN5807-1, Type B-4A Short Stirling and post WWIIThis is a nice specimen of the Double Throat Power Venturi Tube used across US military aircraft of the US Army Air Corps Force and US Navy before, during, and post WWII. Made by Sperry, part number 640600. Power venturi tubes provide a source of vacuum for the operation of air driven instruments such as directional gyros, gyro horizons, and turn and bank indicators. The venturi is a tube shaped like a double "V" and has a small opening, called a