Refit for multi-role service boat MEDIUM-SPEED ENGINES
A
MAJOR refit and refurbishment of a charter boat that doubles as a service vessel
has been completed by Salterns Boatyard, in Poole, UK. Jethou Flyer is a 10.4m long Osborne 350 vessel which serves the island of Jethou, 5km off the coast of Guernsey. Fifty separate boat repair and major
engineering tasks, including renovating the glass reinforced plastic and the antifouling, brought Jethou Flyer back to condition. A pair of Perkins Sabre M215C engines were also installed, supplied by sister company Golden Arrow Marine, as well as the gearboxes being replaced and the fire suppression system updated. Almost every aspect of the boat’s electrical and mechanical systems were refurbished. Originally built in 1994 by William Osborne
at the Arun Boatyard, UK, and fitted out as a pilot boat, Jethou Flyer weighs in at 14tonnes, with a 3.8m beam. This planing-hulled boat with a modified round bilge spent her early years as the builder’s demonstration boat. Used as a water taxi for people working on
Jethou, the vessel also operates as a support vessel for the Ogden family’s private island. The foredeck can carry up to 1500kg of cargo,
and extra fuel tanks were fitted in order to carry 1200litres of diesel for the island’s generators. After refit, Jethou Flyer has a top speed of
21knots with empty cargo tanks, and 16knots with full cargo tanks. This is in comparison to 14knots with empty cargo tanks for the previous engines, and 11knots when full. Salterns engineers modified both M215C
engines for an extra power take-off. The charged air-cooled engines did not require any major structural work, despite the modifications, as
this model is claimed to be the most compact engine of its power output class in the market. The mechanical water pump of the port engine
runs a fire hose housed in the stern locker, while the wheelhouse heaters and demisters are run off the port and starboard engines’ fresh water calorifier systems.
The majority of the work took place
in Salterns’ environmentally-controlled undercover workshop, to ensure the refit was completed within the tightest possible timescale. This was due to the dependency of the island upon the essential fuel and provisions that the vessel transports.
The 10.4m Jethou Flyer has undergone a major refit by Salterns Boatyard.
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SHIP & BOAT INTERNATIONAL MAY/JUNE 2007
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