Sikorsky S-33 Messenger

S-33 Messenger

Role	Racer/Utility Type of aircraft
National origin	United States
Manufacturer	Sikorsky
First flight	1925
Number built	2

The Sikorsky S-33 Messenger was an American two-seat sesqiuplane designed and built by the Sikorsky Manufacturing Corporation in 1925.

The first of two examples built participated in the Sixth Pulitzer Trophy Race at Mitchel Field, Long Island, New York on October 12, 1925 and was piloted by Al Krapish, an employee of Sikorsky.^[1]

The first aircraft is reported to have been powered by a Wright Gale of 60 hp (45 kW) and the second by a Lawrance L-3 of 60 hp (45 kW). These were essentially the same engine type, post- and pre- acquisition of the Lawrance Aero Engine Company by the Wright Aeronautical Corporation, respectively. Some sources assert that the aircraft was powered by an Anzani engine,^[2] but this is most likely to be a mis-identification.^{[original research?]}

Specifications (first aircraft)

Data from Aerofiles^[2]

General characteristics

Crew: Two
Capacity: 500 lb (230 kg)
Length: 18 ft 0 in (5.49 m)
Upper wingspan: 32 ft 0 in (9.75 m)
Lower wingspan: 20 ft 0 in (6.10 m)
Wing area: 160.4 sq ft (14.90 m²)
Empty weight: 882 lb (400 kg)
Gross weight: 1,389 lb (630 kg)
Powerplant: 1 × Wright Gale 3-cylinder radial, 60 hp (45 kW)

Performance

Maximum speed: 115 mph (185 km/h, 100 kn)
Stall speed: 35 mph (56 km/h, 30 kn)
Range: 400 mi (640 km, 350 nmi)
Service ceiling: 15,000 ft (4,600 m)

References

^ "Sikorsky S-33 Messenger". all-aero.com. 2016. Retrieved 31 July 2016.
^ ^a ^b Eckland, K.O. "Sikorsky". Aerofiles. Retrieved 4 August 2016.

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This page was last edited on 4 January 2024, at 18:55

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Specifications (first aircraft)

References