Page 31: of Maritime Reporter Magazine (May 1996)

PROPULSION UPDATE

Sistemar Extends Range Of

CU Propeller Applications

Recent orders for CLT propellers for a Capesize bulk carrier and a 98.4- ft. (30-m) hydrofoil effectively demonstrate the range of vessels which benefit from Sistemar's high-efficiency propellers. The manufacturer also reported that at the end of February, successful results had been achieved with a pair of 3.3-ft. (1-m) diameter, three-bladed CLT pro- pellers fitted to a Trasmediterranea hydrofoil Barracuda. The vessel has a 34-knot service speed, and each propeller is driven at a nominal 986 rpm by a 2,100-bhp main engine. Trasmediterranea operates four hydro- foils, and sought to improve their performance by reducing main engine overloading during take-off, and the length of the acceleration peri- od. Tests reportedly show that the new CLT propellers have helped meet that challenge, and Trasmediterranea has confirmed its inten- tion to order CLT propellers for the remaining hydrofoils in its fleet.

Last month, a 26-ft. (7.9-m)-diameter CLT propeller was delivered for Comanche, Cargill International's second 160,000-dwt bulk carri- er, which is under construction at AESA's Puerto Real Yard. The 37.6-ton propeller was manufactured by Navalips at its Cadiz works.

Cargill has experience with Sistemar's CLT propellers, having fitted a 16-ft. (4.8-m), five-bladed version on its 13,600-dwt orange juice carrier Bebedouro. The propeller was replaced to reduce propeller- excited vibration levels, but a fuel savings of nine percent (shown during tests last July) was an added bonus.

For more information from Sistemar

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Trasmediterranea's hydrofoil Barracuda features CLT propellers from Sistemar.

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May, 1996