Sikorsky S-434

S-434
Role	Light utility and trainer helicopter
Manufacturer	Sikorsky Aircraft
First flight	18 December 2008
Status	Out of production
Primary user	Ministry of the Interior
Produced	2008–2015
Developed from	Schweizer S-333
Variants	MQ-8 Fire Scout

The Sikorsky S-434 is a light, turbine-powered helicopter. The S-434 is an improved development of the Schweizer S-333.

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

Saudi Arabia

Ministry of the Interior^[3]

Specifications (S-434)

Sikorsky Schweizer S‑434 Helicopter^[4]

Configuration: max height: 11.00 ft (3.35 m); length: 30.83 ft (9.40 m); max landing gear width: 7.00 ft (2.13 m); cabin: 67.6 in (172 cm) width * 53.3 in (135 cm) height

Weights: fuel capacity: 84.00 gal (317.97 l); empty: 1,345 lb (610.08 kg); gross: 2,900 lb (1,315 kg), with external load: 3,200 lb (1,451.49 kg); useful load, external included: 1,855 lb (841.41 kg)

Powerplant: Turboshaft: Rolls Royce 250-C20W, 320 shp (238.62 kW) at take-off; Rotor: 4 blades, 471 rpm, 27.51 ft (8.38 m) diameter, 792 sq ft (73.58 sq m) area; Tail Rotor: 4.25 ft (1.29 m) diameter

References

↑ Sikorsky Global Helicopters to Deliver First Two S-434 Military Helicopters
↑ 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. Retrieved 14 June 2013.

External links

S-434 page on Sikorsky.com

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[1] Sikorsky Global Helicopters to Deliver First Two S-434 Military Helicopters

[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. Retrieved 14 June 2013.

Schweizer Aircraft
Sailplanes & Gliders	1-1 1-2 1-3 1-6 1-7 2-8 9-10 15-11 2-12 6-14 1-15 1-16 1-17 2-18 1-19 1-20 1-21 2-22 1-23 1-24 2-25 1-26 2-27 7-28 1-29 1-30 2-31 2-32 2-33 1-34 1-35 1-36 2-37 2-38 X-26 Frigate
Agricultural Aircraft	Ag Cat Ag Cat Super B
Amphibious Aircraft	TSC-1 Teal
Helicopters	300 330 333 S-434
Reconnaissance Aircraft	QT-2 SA 2-37 RU-38 Twin Condor
UAVs	MQ-8 Fire Scout
People	Ernest Schweizer Paul A Schweizer William (Bill) Schweizer

Sikorsky aircraft
Fixed-wing aircraft (company designations)	S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 S-9 S-10 S-11 S-12 S-13 S-14 S-15 S-16 S-17 S-18 S-19 S-20 S-21 S-22 S-23 S-24 S-25 S-26 S-27 S-28 S-29-A S-30 S-31 S-32 S-33 S-34 S-35 S-36 S-37 S-38 S-39 S-40 S-41 S-42 S-43 VS-44 S-45
Fixed-wing aircraft (military designations)	C-6 C-28 JRS JR2S PS RS XBLR-3 XPBS XSS XV-2
Helicopters (company designations)	VS-300 (S-46) S-47 S-48 S-49 S-50 S-51 S-52 S-53 S-54 S-55 S-56 S-57 S-58 S-59 S-60 S-61 S-61L/N S-61R S-62 S-63 S-64 S-65 S-66 S-67 S-68 S-69 S-70 S-71 S-72 S-74 S-75 S-76 S-80 S-92 S-97 S-300 S-333 S-434
Helicopters (military designations)	SH-3 HH-3E/F R-4 H-5 H-6 H-18 H-19 H-34 CH-37 XH-39 HH-52A CH-53 CH-53E CH-53K CH-54 HLH HH-60G HH-60J MH-60R/S SH-60B/F SH-60J/K UH-60 VH-60 RAH-66 H-92 CH-124 CH-148
Experimental aircraft	Cypher Cypher II Firefly X2 XBLR-3 XV-2