The configurations added in 2005 were for offshore operation and police and parapublic missions ranging from patrol, airborne surveillance, SAR and EMS, the helicopter being fitted with specific mission equipment for these duties. Variants EC155 – The first prototype, built from modifying an existing Dauphin airframe. EC155 B – The first production version, powered by two Turbomeca Arriel 2C1 turboshaft engines. EC155 B1 – An uprated model equipped with two Turbomeca Arriel 2C2 turboshaft engines and higher M.T.O.W., offering enhanced hot and high performance AS565 UC – Designation of early military derivative study LCH/LAH – Improved type development by Korea Aerospace Industries. The LCH will enter service in 2020, and the LAH in 2022. Operators The aircraft is operated by private individuals, companies and charter operators. It is also operated by government organisations and as an offshore transport for the gas and oil industry. Police Dominican Republic Air Force Bundespolizei NRW Police Government Flying Service Royal Thai Police PennState Health - Life Lion Critical Care University of Michigan Survival Flight University of Florida ShandsCair Vietnam Helicopter Corporation Specifications (EC155 B1) See also References Citations Bibliography Gray, Peter. Dauphin "Bigger and Better." Flight International, January 2000. pp. 48–51. External links Airbus Helicopters H155 Official Site Airbus Helicopters aircraft 1990s French civil utility aircraft 1990s French helicopters Search and rescue helicopters Twin-turbine helicopters Aircraft first flown in 1997