Page 13: of Maritime Reporter Magazine (July 1999)

Investment in Design

Big Power For Fast-Type Sulzer RTA60C:

Wartsila NSD used the recent Nor-

Shipping exhibition in Oslo as a launch- ing pad for its latest offering to the marine world, the Sulzer RTA60C, an engine designed for faster type ship requiring power outputs up to 18,880 kW (25,680 bhp).

The RTA60C furthers the mandate to offer cleaner, more efficient power packages in a smaller space and less weight consuming manner. One indica- tion of its compact dimensions is the fact that the six-cylinder version is just 7,620 mm long. Length has been mini- mized in similar ways to those that have been proven a success in the RTA48T and RTA58T engines. The fact that the cylinder covers each have just four hold- ing-down studs further accounts for the compact arrangements, while simplify- ing manufacture.

The RTA60C has a 600-mm bore and 2,250 mm stroke, and boasts a mcr of 2,360 kW/cylinder (3,210 bhp/cylinder) at 114 rpm. It is available with five to eight cylinders, covering the power

Sulzer RTA60C Marine

Diesel Engine Data

Bore 600 mm

Stroke 2,250 mm

Stroke/bore ratio 3.75

Power, R1 mcr 2,360 kW/cyl. 3,210 bhp/cyl.

Speed range, R1-R3 114-91 bar

Mean piston speed @ R1 8.55 m/s

Cyl. Pressure (max) 155 bar

No. cylinders 5-8

Power range 8,250 to 18,880 kW 11,200 to 25,680 bhp

Dimensions and Masses

Cyl. L min Net Mass

Mm tons 5 6,580 290 6 7,620 330 7 8,660 375 8 9,700 415 range from 8,250 to 18,880 kW (11,200 to 25,680 bhp) at 91 to 114 rpm. This power and speed was designed for a wide range of "faster" ship applications, such as medium-sized containerships

Ships (abt. 1,200 to 2,700 TEU), car carriers,

RoRo vessels, reefers.

Aside from its operational attributes, the new engine is an important plank in

Wartsila NSD's platform in that it was designed with ease and economy of manufacture in mind. This involves an extensive cooperation with major licensees building Sulzer diesel engines and subcontractors as well. The engine maker incorporated many suggestions from shipowners and shipbuilders, with respect to installation and maintenance.

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Stocking Distributors:

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July, 1999 Circle 300 on Reader Service Card 13