Loening Model 23

Model 23 Air Yacht, S-1
S-1 of the USAAS
General information
TypeFlying boat airliner
National originUnited States
ManufacturerLoening
Number built16
History
First flight1921

The Loening S-1 Flying Yacht, also called the Loening Model 23, was an early light monoplane flying boat designed in the United States by Grover Loening in the early 1920s. The aircraft won the 1921 Collier Trophy.