Aircrafttotal Encyclopedia


General information
Type	Medium-lift transport/utility helicopter
National origin	United States
Manufacturer	Sikorsky Aircraft
Status	In service
Primary users	CHC Helicopter Petroleum Helicopters International Bristow Helicopters Cougar Helicopters
Number built	at least 300
History
Manufactured	1998–present
Introduction date	2004
First flight	December 23, 1998
Developed from	Sikorsky S-70
Variants	Sikorsky CH-148 Cyclone Sikorsky VH-92

The Sikorsky S-92 is an American twin-engine medium-lift helicopter built by Sikorsky Aircraft for the civil and military helicopter markets. The S-92 was developed from the Sikorsky S-70 helicopter and has similar parts such as flight control and rotor systems. The H-92 Superhawk is a military version of the S-92 in the utility transport role, capable of carrying 22 troops. The H-92 can also be configured for specific missions, including search and rescue and executive transportation. The CH-148 Cyclone is a shipboard maritime helicopter variant developed for the Royal Canadian Air Force to support naval operations of the Royal Canadian Navy. The Sikorsky VH-92 is a variant under development to replace the United States Marine Corps' Marine One U.S. Presidential transport fleet.

Design

The S-92 is multi-purpose helicopter powered by twin GE CT7-8A turboshaft engines and has an aluminum airframe and some composite components. The four-bladed fully articulated composite main rotor blade is wider and has a longer radius than the Sikorsky S-70. The tapered blade tip sweeps back and angles downward to reduce noise and increase lift. Most of the rotor system components aside from the blades are titanium.

The S-92 features an active vibration control system, using vibration sensors and structurally mounted force generators to increase flight comfort and lower acoustic levels to below certification requirements. A 2008 study by Norway's Flymedisinsk Institute found that the S-92's vibration levels were 42 percent above that of the Eurocopter EC225 Super Puma; Sikorsky disputed this finding, saying that the study hadn't used their latest anti-vibration technology. In February 2011, as published on a Norwegian newspaper's website, the noise and vibration levels were reportedly subject to health concerns, allegedly causing tinnitus and heart problems

Howard Sikorsky helicopters MD

Sikorsky, a Lockheed Martin Company
Sikorsky Aircraft S-92/CH148 Cyclone

General Info

Crew: 2 (pilot, co-pilot)
Capacity: 19 passengers
Length: 68 ft 6 in (20.88 m) ^[92]
Width: 17 ft 3 in (5.26 m) fuselage
Cabin dimensions: 20 ft (6 m) long by 6.6 ft (2 m) tall^[92]
Height: 15 ft 5 in (4.70 m)

Powerplant

Empty weight: (7,031 kg)
Gross weight: (12,020 kg)
Max takeoff weight: (12,565 kg)
Powerplant: 2 × General Electric CT7-8A turboshaft engines, 2,520 shp (1,880 kW) each
Main rotor diameter: 56 ft 4 in (17.17 m)

Specifications

Maximum speed: 165 kn (190 mph, 306 km/h)
Cruise speed: 151 kn (174 mph, 280 km/h)
Range: 539 nmi (620 mi, 998 km)
Service ceiling: 14,000 ft (4,300 m)

Armament

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S-92/CH148 Cyclone
Manufactured 1998–present Introduction date 2004 First flight December 23, 1998