Verenigde Staten van Amerika - Beautiful Rare WW2 USAAF A-9A Oxygen Regulator - made by Bendix - Liberator - Flying Fortress - Skytrain - 1943

This is a rare and difficult to find WWII, aircraft Oxygen Regulator Type A-9A as used across bomber and transport aircraft of the US Army Air Force and US Navy, such as the B-17 Flying Fortress (see image illustrating the location of the co-pilot's regulator from the B-17F flight manual dated 1943). The A-9A regulator was a low pressure continuous flow regulator (vs the on-demand, diluter regulator typically used in fighter aircraft) used with oxygen mask A-8B.An A-9A would be installed at each crew position, and may be attached to a portable bottle during movement within the aircraft during flight.The A-9A regulator had one dial with two gauges, and one adjustment knob.The knob was used to set the flow rate, which was indicated on the top gauge on the indicator. The flow rate was to be set to match the altitude of the aircraft as indicated on the altimeter, up to 35,000 ft.The bottom gauge on the indicator showed the amount of pressure (i.e., oxygen) remaining in the oxygen cylinder.

A beautiful instrument for your WW2 collection!

Great and rare 100% original item from WW2! See also our other interesting military books and militaria for sale!