20's Bendix Aviation Corp Pioneer Instrument venturi tube Aircraft Airplane Vtg! Gremlin Bells MANY MORE UNIQUE ITEMS TO

MANY MORE UNIQUE ITEMS TO BE LISTED SOON

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20's Bendix Aviation Corp Pioneer Instrument venturi tube Aircraft Airplane Vtg! Gremlin Bells MANY MORE UNIQUE ITEMS TOvintage black metallic item is a Bendix Aviation Corporation Pioneer Instrument Division venturi tube, used historically on aircraft to power vacuum instruments like turn and bank indicators. pitot tube The device operates on the principle of reducing pressure in a flowing fluid through a constricted section, allowing it to measure or create a vacuum. Similar specimens from this manufacturer date back to the 1920s and were widely used on U. S.