Main Engine 4-Stroke · Main Engines (4-Stroke)
Yanmar 6N21A-SW is a 6-cylinder medium-speed marine propulsion diesel engine with 210x290mm bore and stroke. It uses the YX-1000/YX-1000C marine gear for fixed-pitch propellers. Dry engine weight is 8000 kg.
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“Type ………… 4-stroke, Diesel No. of Cylinders ………… In-line 6 Cylinder Bore ………… 210 mm Piston Stroke ………… 290 mm Mean Effective Pressure ………… 1.65 - 2.24 MPa Piston Speed ………… 7.73 / 8.22 m/s”
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