The development objective with the new engine was to produce a high efficiency/ high specific power output unit that complied with IMO Tier II emission limits in diesel mode and IMO Tier III limits in gas operation. A high degree of fuel flexibility (HFO, MDO, MGO and natural gas) was another primary objective.
With an output of 530kW/cylinder, the inline 35/44DF is available in 6 – 10 cylinder configurations, equivalent to total power outputs from 3.2 MW to 5.3 MW. This represents the highest power output available in the segment and complements that offered by the larger L51/60DF type.
Source: MAN Diesel & Turbo