Sikorsky RS

The Sikorsky RS was a designation used by the United States Navy for a number of different Sikorsky twin-engined amphibious flying boats.

Variants RS-1 Designation for three Sikorsky S-41 flying boats for evaluation. XRS-2 Designation for two Sikorsky PS-2 flying boats converted as transports. RS-3 Four Sikorsky PS-3 flying boats converted as transports. RS-4 Designation for two impressed Sikorsky S-40A flying boats. RS-5 Designation for two impressed Sikorsky S-41 flying boats.