Cheoy Lee Shipyards Delivers Tug Duo

Florida-based Cheoy Lee Shipyards have delivered two more Z-Tech tugs, PSA Polaris and PSA Capella, to PSA Marine, Singapore.

 This time was the Z-Tech 5000 version with newly re-styled deckhouse and wheelhouse in addition to its already unique appearance. As the joint-developer of the original Z-Tech concept, PSA Marine currently operates twelve Z-Tech tugs including three Z-Tech 7000 and nine Z-Tech 2800 tugs.

The design, a combination of the best operational characteristics of both Z-drive tractor tugs and azimuthing stern-drive tugs, was developed by Robert Allan Ltd. in response to a challenge raised by PSA Marine back in 2002.

The year after the first Z-Tech design was delivered, it was awarded the Singapore Design Award of 2004 and one year later it won the prestigious Red Dot Design Award “Best of the Best”. About 90 tugs of 8 versions of the basic design have been built or are under construction worldwide to date.

The vessel has been designed to the highest standards of outfitting for a normal operating crew of six. The Master and Chief Engineer’s cabin along with two additional double crew cabins are located on the main deck. There is also a pantry and mess room located on the lower deck.

The deck machinery comprises a Macgregor hydraulic towing winch on the bow, spooled with 220 m line on the working drum. Same as their sister vessels for PSA Marine, a knuckle deck crane is also provided on aft deck.

Main propulsion for each tug comprises of a pair of Yanmar 6EY26W diesel engines, each rated 1530 kW at 750 rpm, and driving a Schottel SRP 360FP Z-drive unit with Ø2200 propeller. The electrical plant consists of two identical Perkins E70TAG1M diesel gen-sets, each with a power output of 96 eKw 415 v, 3-Ph, 50 Hz.

Ship-handling fenders at the bow consist of one tier of 800 OD x 400 ID cylindrical fender at the main deck level, with 480 x 300 W-Block fenders between the main deck and the knuckle at bow and stern, and 300 x 300 hollow square style fenders along the sheer lines of main deck, stem and skeg. 400 OD x 200 ID fendering is used at the stern.