Original photo caption:

ENDURANCE FLIERS TEST NEW GAS-SAVING INVENTION:
LEE SHOENHAIR AND JOHN GUGLIMENTI USE BOOSTER CLEANER WHICH REMOVES DIRT AND WATER FROM AIR STREAM ENTERING CARBURETOR

SAN DIEGO, California, USA--PHOTO SHOWS: The Albatross monoplane in which Lee Shoenhair and John Guglimenti took off on their attempt to break the endurance record. Their engine is equipped with a booster cleaner, invented by Commander Carl Smith of the naval air station here. The cleaner removes dirt and water from the air stream entering the carvuretor and increases the horsepower of the engine at the take off, thereby saving 8% of the fuel. It makes it possible for Navy seaplanes to operate in rough weather because it keeps water from the carburetor.