http://www.manbw.com /engines/TwoStrokeLo wSpeedPropEngines.as p?model=S46MC-C7
Just listen to the sound, like a swiss watch ( it's a lower sound, main sound is from auxiliary gensets also MAN B&W
)
Installed in Stena Paris 2X MAN B&W 6S46MC-C7 that was built in shipyard Split, Croatia