Pratt & Whitney Aircraft's first engine, completed on Christmas Eve 1925, was named the Wasp by Faye Belden Rentschler, whom Frederick had married July 25, 1921. The Wasp easily passed its official qualification test in March 1926 and the Navy ordered 200 engines. The speed, climb performance, and reliability that the engine offered revolutionized American aviation. Over the next twenty years, from the original Wasp design the Pratt & Whitney Wasp series developed, approaching ten times the power of the 1925 engine.