| 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.
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
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
See also
Related development
Aircraft of comparable role, configuration, and era
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
