Sikorsky S-34

S-34
Role	Amphibian sesquiplane
National origin	United States
Manufacturer	Sikorsky Manufacturing Corporation
First flight	1926 or 1927
Number built	1
Developed into	Sikorsky S-36

The Sikorsky S-34 was a 1920s American six-seat sesqiuplane, designed and built by the Sikorsky Manufacturing Corporation. Only one was built but the design led to the successful Sikorsky S-38.

The S-34 was a sesquiplane amphibian with a boat hull, being powered by two tractor 200 hp (149 kW) Wright Whirlwind J-4 engines. It had a boom-mounted twin-rudder tail unit and room inside the hull for five passengers. During a test flight in November 1927 one engine failed and the S-34 crashed and sank. Igor Sikorksy and the others onboard escaped without injury but the S-34 was destroyed. It was the first Sikorsky aircraft with a boat hull and would lead to a family of similar flying boats and amphibians.

Data from

General characteristics

Performance

...
Wikipedia