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Type approval granted to uprated MAN L51/60DF

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LNG Industry,

MAN Diesel & Turbo’s MAN L51/60DF engine successfully passed its Type Approval Test (TAT), which ran from 17 – 20 October at the company’s Augsburg works in Germany, in front of the industry’s main classification societies. The nine-cylinder test engine has an output of 1150 kW/cylinder at a nominal speed of 500/514 rpm.

The MAN L51/60DF engine can be employed both as marine main-engine and auxiliary engine. Augsburg’s testbed no. 20 hosted the test programme of a nine-cylinder version of the engine that ran 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.”

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