MAN Diesel’s first S40ME-B electronic engine has entered service. Yielding 6,810 kW at 146 rpm and an mep of 21 bar, the new engine was built by STX in Korea and is one of six ordered by Intership Navigation of Cyprus to power a series of vessels. The ME-B engine is the prime mover aboard the Pacific Adventure, a multi-purpose vessel built at HuangHai shipyard in China. The newbuilding recently passed its sea-trials successfully. The market requirement for the lowest possible propeller speed in relation to bore size has led to the new ME-B engine having a stroke/bore ratio of 4.4. In turn, the new engine has an increased maximum cylinder pressure, giving rise to an improved fuel consumption that is 2 g/kWh lower than existing, small-bore engines. Thanks to the electronic control of the engine’s parameters, the ME-B is also well-equipped to meet the new Tier-II emission requirements.