The statistics of this engine are mind-boggling.
The RTA96-C is the largest engine in the world and is available in 6 through 14 cylinder versions, all are inline engines. These engines were designed primarily for very large container ships but similar large diesel engines run large ships of all kinds. Ship owners like the combination of a single engine and single propeller for reasons of efficiency and cost of production vs operation of these mega-vessels. As ships continue to get larger with new generations of larger container ships being built each year shippers like Emma’s owner, A.P. Møller – Mærsk, will need bigger engines to propel them.
To help relate to the size of this monstrous engine consider that one cylinder bore alone is just under 38″ and the stroke is just over 98″. And the alone engine weighs in at 2,300 tons and is capable of delivering 109,000 horsepower.
There's more at the link.
The Emma Maersk is more than a decade old now, and has been superseded by even larger container vessels. These behemoths are powered by the same engine - just with a few more cylinders bolted on.
That's the biggest diesel engine in the world. What about the biggest gas turbine - similar to the type of engine that powers the largest aircraft in the world (although those are much smaller)? That would be the Siemens SGT5-8000H. Here's a video report from 2008, showing the prototype engine being transported across Germany to its test installation at the Irsching Power Station.
Big and beefy indeed!