S-35 Development Timeline
August 21, 1926. Rollout and taxi testing of completed aircraft.
August 23, 1926. First Flight with pilot Captain Rene Fonck, copilot Igor Sikorsky, and Chief Engineer Michael Gluhareff aboard. Duration of flight was 35 minutes.
August 27, 1926. Speed test flight at 18,000 pounds demonstrated a speed of 145 mph.
August 28, 1926. Altitude test flight at 16,500 pounds. Reached an altitude of 17,000 feet in 45 minutes.
September 7, 1926. Load test flight with US Army and Navy inspectors aboard at a takeoff weight of 20,135 pounds.
September 9-10, 1926. Round trip flight to Washington D.C.to test fuel consumption and navigation equipment and for demonstration flights to the U.S. Military
September 21, 1926. Crashed at Roosevelt Field, Long Island, New York while on takeoff roll for a planned transatlantic flight to Paris.
Configuration Features
S-35 Design
An all metal structure covered by fabric, the entire frame-work of the body was composed of duralumin channels, tubes and plates assembled with steel bolts and rivets. There was no welding on any part of the structure and there were no wires or structural cross members in the cabin area. The entirely enclosed cockpit had shatterproof, sliding glass windows at the top and sides, and dual controls had been provided for the pilots. Behind the cockpit the passenger cabin contained space for 450 cu. ft. of cargo or 12 passengers. This cabin was four ft. wide, six ft. high, and fifteen and one half ft. long. Radio equipment was also installed for regular or short wave transmission.
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