^AABG

RT-flex50C

Zulu Code Model

Description

Wärtsilä RT-flex50C — a compact two-stroke engine for Handysize and Handymax bulkers. The '-C' suffix denotes compact design with reduced engine room footprint.

Wärtsilä RT-flex: electronically controlled common-rail 2-stroke engines

Also known as: wartsila rt-flex, rt-flex engine, sulzer rt-flex, electronically controlled sulzer, rt-flex, flex engine

Specifications

Cycle	2-Stroke
Bore	500 mm
Fuel Injection	Common rail (RT-flex)

Did you know

The Wärtsilä Sulzer RT-flex series, which includes the RT-flex50C, began development in 1993, with the first series-built engine, a Sulzer 6RT-flex58T-B, entering service in September 2001. The RT-flex technology represents a significant advancement in marine diesel technology, introducing electronically-controlled common-rail fuel injection.
The RT-flex50C is part of Wärtsilä Sulzer's RT-flex series of low-speed, two-stroke marine diesel engines, which also includes models like the RT-flex58T-B, RT-flex60C, and RT-flex96C. This series is characterized by its common-rail technology, which distinguishes it from older, camshaft-driven RTA series engines.
The RT-flex50C is chosen for its electronically-controlled common-rail system, which allows for flexible fuel injection and exhaust valve actuation, leading to benefits such as smokeless operation at all speeds, lower fuel consumption, and improved maneuverability due to stable running at very low speeds. This technology also contributes to reduced running costs and lower emissions.

Model	Cylinder Bore (mm)	Piston Stroke (mm)	Max Continuous Output (kW/cyl)	RPM Range
RT-flex50C	500	2050	1620	124
RT-flex58T-B	580	2416	2180	84-105
RT-flex60C	600	2250	2360	91-114
RT-flex96C	960	2500	5720	102-120

Sources: ihmc.us; scribd.com; scribd.com; wartsila.com; wartsila.com; scribd.com; scribd.com; wikipedia.org; scribd.com; marineengineersknowledge.com; wartsila.com; meoexamz.co.in; scribd.com; scribd.com; scribd.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…

^AAAA G50ME-C

G50ME-C is a MAN B&W 2S model, coded ^AAAA. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

^AAAE G95ME-C

G95ME-C is a MAN B&W 2S model, coded ^AAAE. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

^AAAQ S50MC-C

S50MC-C is a MAN B&W 2S model, coded ^AAAQ. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

^AAAI S80ME-C

S80ME-C is a MAN B&W 2S model, coded ^AAAI. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

Send enquiry

Send an enquiry to the manufacturer of ^AABG RT-flex50C. One broadcast per day.

Contribute or correct

Spotted a missing or incorrect entry? Let the maintainers know. Zulu Code is open under CC BY 4.0 — every correction strengthens the standard for the whole industry.

Code map

^A  A  B  G
 │  │  │  └── Model: RT-flex50C
 │  │  └───── Make: Wärtsilä Sulzer
 │  └──────── Equipment: Main Engine
 └─────────── System: ME, Propulsion & Steering