The Westland Whirlwind helicopter was a British licence-built version of the U.S. Sikorsky S-55/H-19 Chickasaw. It primarily served with the Royal Navy's Fleet Air Arm in anti-submarine and search and rescue roles. It was also exported to other countries, and the Whirlwind was succeeded by the turbine powered Westland Wessex which was developed from the H-19/Whirlwind. The helicopter was made in many variants using a variety of radial (piston) and turbine engines.
The Westland Wessex is a British-built turbine-powered development of the Sikorsky H-34. It was developed and produced under licence by Westland Aircraft. One of the main changes from Sikorsky's H-34 was the replacement of the piston-engine powerplant with a turboshaft engine. Early models were powered by a single Napier Gazelle engine, while later builds used a pair of de Havilland Gnome engines.
The Aérospatiale SA 330 Puma is a four-bladed, twin-engined medium transport/utility helicopter designed and originally produced by the French aerospace manufacturer Sud Aviation.
The Leonardo AW609, formerly the AgustaWestland AW609, and originally the Bell/Agusta BA609, is a twin-engined tiltrotor VTOL aircraft with an overall configuration similar to that of the Bell Boeing V-22 Osprey. It is capable of landing vertically like a helicopter while having a range and speed in excess of conventional rotorcraft. The AW609 is aimed at the civil aviation market, in particular VIP customers and offshore oil and gas operators. It has progressed from a concept in the late 1990s, to development and testing, and is working towards certification in the 2020s.
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 Sikorsky H-34 "Choctaw" is an American piston-engined military helicopter originally designed by Sikorsky as an anti-submarine warfare (ASW) aircraft for the United States Navy. It has seen extended use when adapted to turbine power by the British licensee as the Westland Wessex and Sikorsky as the later S-58T.
The Westland Widgeon was a helicopter developed by Westland Aircraft as a private venture improvement on the Westland WS-51 Dragonfly.
The AgustaWestland AW139, now known as the Leonardo AW139, is a 15-seat medium-sized twin-engined helicopter developed and produced by the Anglo-Italian helicopter manufacturer AgustaWestland, now part of Leonardo. It is marketed at several different roles, including VIP/corporate transport, military use, offshore transport, firefighting, law enforcement, search and rescue, emergency medical service, disaster relief, and maritime patrol.
The Sikorsky X2 is an experimental high-speed compound helicopter with coaxial rotors, developed by Sikorsky Aircraft, that made its first flight in 2008 and was officially retired in 2011.
Bristow Helicopters Limited is a British civil helicopter operator originally based at Aberdeen Airport, Scotland, which is currently a part of the U.S.-based Bristow Group which in turn has its corporate headquarters in Houston, Texas, U.S. In 2020, Bristow Group was merged with Era Helicopters, a large U.S.-based commercial helicopter operator that was previously a division of Era Aviation, with the two companies then continuing to use the Bristow name.
The Sikorsky S-61L and S-61N are civil variants of the SH-3 Sea King military helicopter. They were developed and produced by the American helicopter manufacturer Sikorsky Aircraft.
The Airbus Helicopters H225 is a long-range passenger transport helicopter developed by Eurocopter as the next generation of the civilian Super Puma family. It is a twin-engined aircraft and can carry up to 24 passengers along with two crew and a cabin attendant, dependent on customer configuration. The helicopter is marketed for offshore support and VIP passenger transport duties, as well as public service missions.
The Bacton Gas Terminal is a complex of six gas terminals within four sites located on the North Sea coast of North Norfolk in the United Kingdom. The sites are near Paston and between Bacton and Mundesley; the nearest town is North Walsham.
Bristow Helicopters operate a large fleet of 490 helicopters and fixed-wing aircraft. In 2015 it operated 24 helicopter types, however as a result of their restructure due to previous financial difficulties it now operates approximately six types, a significant reduction. The fleet includes unconsolidated affiliates and joint venture partners.
The AgustaWestland AW189 is a twin-engined, super-medium-lift helicopter manufactured by Leonardo S.p.A. It is derived from the AW149, and shares similarities with the AW139 and AW169.
The Pakistan Army Corps of Aviation is a military administrative and combined arms service branch of the Pakistan Army.
The Leman gas field is a natural gas field located in the North Sea 30 miles (48 km) northeast of Great Yarmouth, United Kingdom. Named after the Leman Sandbank beneath which it is situated, the gas reservoir is a 18 miles (29 km) long, 5 miles (8.0 km) wide, 800 ft (240 m) thick Rotliegendes sandstone reservoir at a depth of about 6,000 ft (1,800 m).
On 13 March 2014, an AgustaWestland AW139 helicopter of Haughey Air crashed shortly after taking off at night in fog from Gillingham, Norfolk, United Kingdom, killing all four people on board. Among the victims was Edward Haughey, Baron Ballyedmond.
On 14 September 1982 a medical evacuation helicopter flight operated by Bristow Helicopters crashed during the early hours of the morning in driving rain and poor visibility over the North Sea. All six crew members on board died when their aircraft plunged into the sea near the Murchison platform while trying to locate the Baffin Seal seismic survey vessel.
