Sikorsky S-434

S-434
Role	Light utility and trainer helicopter
National origin	United States
Manufacturer	Sikorsky Aircraft
First flight	18 December 2008
Status	In service
Primary user	Saudi Ministry of the Interior
Produced	2008–2015
Developed from	Schweizer S-333

The Sikorsky S-434 is a light, turbine-powered helicopter. The S-434 is an improved development of the Schweizer S333.

Design and development

The prototype S-434 first flew on 18 December 2008 at Horseheads, New York. The S-434 evolved from the S-333, and has many features developed for the MQ-8 Fire Scout. It shares its cockpit layout with the S-333, which gives the crew very good visual capacities and handling characteristics.^{[citation needed]}

On June 15, 2009, Sikorsky announced the delivery of the first two S-434s to Saudi Arabia's Ministry of the Interior, the first of a total of nine.^[1]

Variants

S-434: based on improvements developed for the MQ-8B; powered by one Rolls-Royce 250-C20W turboshaft engine of 320 shp.^[2]

Operators

Saudi Arabia

Ministry of the Interior^[3]

Specifications (S-434)

Data from Sikorsky Helicopter^[4]

General characteristics

Length: 30 ft 10 in (9.40 m)
Height: 11 ft (3.4 m)
Cabin width: 67.6 in (1.72 m)
Cabin height: 53.3 in (1.35 m)
Empty weight: 1,345 lb (610 kg)
Gross weight: 2,900 lb (1,315 kg)
Max takeoff weight: 3,200 lb (1,451 kg) with external load
Fuel capacity: 84 US gal (70 imp gal; 318 L)
Powerplant: 1 × Rolls Royce 250-C20W turboshaft engine, 320 shp (240 kW) for take-off
Main rotor diameter: 27 ft 6 in (8.38 m)
Main rotor area: 792 sq ft (73.6 m²) 4-bladed main rotor

Performance

References

^ Sikorsky Global Helicopters to Deliver First Two S-434 Military Helicopters, archived from the original on 2016-10-24, retrieved 2009-06-16
^ Sikorsky S-434 page
^ "Saudi Ministry of Interior takes delivery of Sikorsky's first pair of S434 helicopters". arabianaerospace.aero. Retrieved 7 March 2013.
^ "Sikorsky Schweizer S‑434 Helicopter, 1483_SZR-008_S434_SS.indd 1" (PDF). sikorsky.com. 15 February 2008. Archived from the original (PDF) on 10 January 2011. Retrieved 14 June 2013.

External links

Media related to Sikorsky helicopters at Wikimedia Commons

[1] Sikorsky Global Helicopters to Deliver First Two S-434 Military Helicopters, archived from the original on 2016-10-24, retrieved 2009-06-16

[2] Sikorsky S-434 page

[3] "Saudi Ministry of Interior takes delivery of Sikorsky's first pair of S434 helicopters". arabianaerospace.aero. Retrieved 7 March 2013.

[4] "Sikorsky Schweizer S‑434 Helicopter, 1483_SZR-008_S434_SS.indd 1" (PDF). sikorsky.com. 15 February 2008. Archived from the original (PDF) on 10 January 2011. Retrieved 14 June 2013.

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