Vought UO-1, UO-4 (1926)

A UO-1 was borrowed from the Navy to demonstrate the advantages of aircraft during prohibition. The demonstration was successful and appropriations were forthcoming for the first Coast Guard purchase of aircraft. The Coast Guard Commandant, Admiral Billard, obtained an appropriation of $162,000 for the purchase of five aircraft specifically designed for the Coast Guard. Three were modified Loening OL-5 amphibians with strengthened hulls for rough water landings and larger fuel tanks providing for increased fuel for extended law enforcement patrols. And two UO-1s were upgraded to UO-4s. Two UO-4 were purchased. One was based at Coast Guard Air Station Ten Pound Island  and one at Coast Guard Air Station Cape May which was commissioned in 1926. The OU-43 were given tail numbers CG-4 and CG-5