The S-1 Flying Yacht was a high-wing, strut-braced monoplane with the engine mounted pusher-fashion in a nacelle atop the wing.

[4] The prototype was tested with a new roll-control mechanism to replace ailerons using a small leading edge that extended and retracted outboard of the wing tips.

[8] An S-1 set a world record for altitude with four passengers flying to a height of 19,500 ft (5,944 m) over Long Island, New York in August 1921.

[10] On a test-flight on 16 August 1921, an Air Yacht piloted by David McCulloch reached an altitude of 19,500 ft (5,900 m) carrying three passengers (Grover Loening, Leroy Grumman, and Ladislas d'Orcy) in what was believed to be a record at the time.

[12] Data from American Flying Boats and Amphibious Aircraft: An Illustrated History;[16]General characteristics Performance