Not really relevant to the engines used in the boats in this forum, but still interesting. What is impressive is the specific fuel consumption compared to typical diesel engines and the efficiency these mammoth engines can achieve
https://www.thevintagenews.com/2016/01/08/45014/
Configuration Turbocharged two-stroke diesel straight engine, 6 to 14 cylinders
Bore 37.75 inch (960 mm)
Stroke 8.4 feet (2,500 mm)
Displacement 111,063 CI (1,820 litres) per cylinder
Engine speed 22–102 RPM
Mean effective pressure 1.96 MPa @ full load, 1.37 MPa @ maximum efficiency (85% load)
Mean piston speed 8.5 meters per second
Specific fuel consumption 171 g/(kW·h)
Power Up to 5,720 kW per cylinder, 34,320–80,080 kW (46,680–108,920 BHP) total
Torque Up to 7,603,850 newton metres (5,608,310 lbf·ft) @ 102 rpm
Power density 29.6 to 34.8 kW per tonne, 2300 tonnes for the 14-cylinder version
Mass of fuel injected per cylinder per cycle ~160 g (about 6.5 ounces) @ full load(Whole motor uses up to 250 tons of fuel per day.)
Crankshaft weight 300 tons[
Piston weight 5.5 tons
Piston Height 20 feet
https://www.thevintagenews.com/2016/01/08/45014/
Configuration Turbocharged two-stroke diesel straight engine, 6 to 14 cylinders
Bore 37.75 inch (960 mm)
Stroke 8.4 feet (2,500 mm)
Displacement 111,063 CI (1,820 litres) per cylinder
Engine speed 22–102 RPM
Mean effective pressure 1.96 MPa @ full load, 1.37 MPa @ maximum efficiency (85% load)
Mean piston speed 8.5 meters per second
Specific fuel consumption 171 g/(kW·h)
Power Up to 5,720 kW per cylinder, 34,320–80,080 kW (46,680–108,920 BHP) total
Torque Up to 7,603,850 newton metres (5,608,310 lbf·ft) @ 102 rpm
Power density 29.6 to 34.8 kW per tonne, 2300 tonnes for the 14-cylinder version
Mass of fuel injected per cylinder per cycle ~160 g (about 6.5 ounces) @ full load(Whole motor uses up to 250 tons of fuel per day.)
Crankshaft weight 300 tons[
Piston weight 5.5 tons
Piston Height 20 feet