Uprated MAN L51/60DF gains Type Approval

NOVEMBER 2, 2017 — MAN Diesel & Turbo’s MAN L51/60DF engine has successfully passed its Type Approval Test (TAT), which ran from October 17- 20 at the company’s Augsburg works in Germany, in front of the industry’s main classification societies.

The dual fuel engine can be both as a marine main engine and as an auxiliary engine.

The nine-cylinder test engine has an output of 1,150 kW/cylinder at a nominal speed of 500/514 rpm.

In the Type Approval Test, on Augsburg’s testbed no. 20, the engine an on fuel oil (DMA) and natural gas.

The TAT tested the engine’s:

• alarm and safety system
• dual-fuel safety concept, including a test of its pilot-fuel system
• gas supply system.

The TAT also successfully tested the integration of MAN Diesel & Turbo’s proprietary SaCoSone engine control system with the engine.

Lex Nijsen, Head of Four-Stroke Marine, MAN Diesel & Turbo said: “The MAN L51/60DF, with its improved rated-output and new features such as gas-start capability, is a welcome addition to the ranks with the flexibility to act in a main or auxiliary capacity. Whether operating on fuel oil or gas, I’m certain its efficiency and high power output will be appreciated by the market.”