^AAAQ — S50MC-C | Zulu Code

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Zulu Code Model

Description

S50MC-C is a MAN B&W 2S model, coded ^AAAQ. Typical service: primary propulsion at sea; shaft drive to propeller. Installed on cargo ship, tanker, bulk carrier.

Specifications

Cycle	2-Stroke
Bore	500 mm

Did you know

The MAN B&W MC-C series, which includes the S50MC-C, evolved from the earlier MC series, offering a more compact design with an improved power-to-weight ratio. The MC/MC-C engine program has been developed since the early 1980s.
The S50MC-C is part of MAN B&W's two-stroke, low-speed crosshead marine diesel engine portfolio, characterized by its 'Super long stroke' (S) design and 'Compact' (C) structure. It sits within a range of MC-C engines that vary primarily by bore size, such as the S35MC-C, S40MC-C, S60MC-C, S70MC-C, S80MC-C, and S90MC-C.
The S50MC-C is chosen for its robust construction, operational economy, and long service life, making it suitable for vessels like bulk carriers, tankers, and container ships. Its super-long-stroke design contributes to excellent fuel efficiency and lower RPM.

Model	Cylinder Bore (mm)	Piston Stroke (mm)	Power/Cylinder (kW)	Nominal Speed (rpm)
S50MC-C	500	2000	1460	127
S60MC-C	600	2400	2000	105
S40MC-C	400	1520	900	146

Sources: mechbasic.com; scribd.com; engine.od.ua; nautilusshipping.com; scribd.com; wordpress.com; malwimarine.com; zxanhyd.com

Competitive Models

Similar models from other manufacturers — apple to apple.

^AAEA 6EY26W

Yanmar 6EY26W — a 6-cylinder medium-speed four-stroke main engine with 260mm bore. Compact design for coastal tankers, f…

^AABH RT-flex58T-B

Wärtsilä RT-flex58T-B — an electronically controlled engine with 580mm bore for Panamax bulk carriers and medium tankers…

^AABM RT-flex96C

Wärtsilä RT-flex96C — the world's most powerful reciprocating engine. 960mm bore, up to 14 cylinders, producing 80,000+ …

^AABC RTA60C

Wärtsilä RTA60C — the camshaft-driven predecessor to the RT-flex60C. Reliable mechanical fuel injection with proven sea-…

^AARA UEC85LSII

Spares

Positions 1–12 are the same part on every engine and are safe to quote by code. 13 and 14 vary with cylinder count.

1Cylinder Liner — page under construction
2Piston — page under construction
3Fuel Injector Nozzle — page under construction
4Cylinder Head / Cover — page under construction
5Connecting Rod — page under construction
6Main Bearing — page under construction
7Bottom-End (Crankpin / Con-Rod) Bearing — page under construction
8Fuel Injection Pump — page under construction
9Fuel Injector (Complete) — page under construction
10Exhaust Valve — page under construction
11Inlet Valve — page under construction
12Piston Ring Set — page under construction
13Crankshaft — page under construction
14Camshaft — page under construction

Send enquiry

Send an enquiry to the manufacturer of ^AAAQ S50MC-C. One broadcast per day.

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Code map

^A  A  A  Q
 │  │  │  └── Model: S50MC-C
 │  │  └───── Make: MAN B&W 2S
 │  └──────── Equipment: Main Engine
 └─────────── System: ME, Propulsion & Steering