The biggest marine engine in the world is the Wärtsilä RT-flex96C, a two-stroke turbocharged diesel engine. Below are its key specifications and technical properties:
Size:
- Length: ~27 meters
- Height: ~13.5 meters
- Weight: ~2,300 tons
- Displacement: 25,480 liters per cylinder
- Bore: 960 mm
- Stroke: 2,500 mm
Grade & Fuel:
- Heavy Fuel Oil (HFO) or Marine Diesel Oil (MDO)
- Compliant with IMO Tier II and Tier III emission standards
Viscosity:
- Fuel viscosity range: 10–700 cSt (adjustable with preheating)
Buoyancy:
- Not applicable (engine is fixed within the ship's hull)
Material:
- Cylinder liners: Cast iron with chrome plating
- Pistons: Steel alloy with aluminum skirts
- Crankshaft: Forged steel
- Engine block: High-strength cast iron or welded steel
Engine Parts:
- Turbochargers (up to 4 units)
- Common rail fuel injection system
- Exhaust gas recirculation (EGR) system
- Bedplate and frame for structural support
- Crosshead bearings for piston rod alignment
Power Output:
- Max power: ~80,080 kW (108,920 hp)
- Speed: 102 RPM (for optimal efficiency)
