Important reference for new Cummins engine

Industry Database

Following delivery from a Spanish shipyard of two waterjet catamaran crew boats, Cummins has contracted Robert Allan Ltd to prepare drawings of its proven RAstar 3500 tug featuring the former’s new QSK95 marine diesel.

The IMO Tier II compliant new addition to Cummins’ stable has been in development for several years now and reported to have proved itself in high-speed applications and a good match for the RAstar tug design.

The high speed 1,800rpm engines each deliver 4,200bhp of power at just 13,282kg of weight, Cummins stating this is the same horsepower range that some recently delivered ocean towing tugs have been equipped with. With a length of 34.9m and combined 8,400hp these are by any measure large tugs and the engines will turn 3,200mm four-blade Kaplan azimuthing thruster propellers in nozzles via reduction of 8.476:1. Bollard pulls of 102t ahead and 96t astern along with a free-running speed of 14.2kn are predicted for this established design with the new machinery installations.

By Peter Barker

Latest Press Releases

Fred. Olsen Windcarrier Jack-up Brave Tern completes major crane refit at Damen Shiprepair Amsterdam

Brave Tern, the 132-metre jack-up operated by Fred. Olsen Windcarrier AS, has completed a major cran... Read more

Damen Marine Components to supply Chilean Navy for ANTARCTIC I project

Damen Marine Components has won a contract to supply steering gear, rudders and stern tube parts for... Read more

Damen Verolme Rotterdam wins refit contract for drilling rig Stena Don

Damen Verolme Rotterdam (DVR), one of Damen Shipyards Group’s most experienced yards in the repair a... Read more

Industry insights with Lloyd’s Maritime Academy:

INDUSTRY INSIGHTS WITH LLOYD’S MARITIME ACADEMY: What's next for the shipping industry? Read more

Damen signs with VTS Vasiliko Terminal Services for ASD Tug 2310

On 24th July, Damen Shipyards Group signed a contract with Cyprus-based VTS Vasiliko Terminal Servic... Read more

DAMEN lays keel for 77-metre DAMEN SeaXplorer expedition yacht

On 27 July DAMEN SeaXplorer marked a milestone in the construction of the SeaXplorer 77 expedition y... Read more

View all