Summer Rose

Summer Rose

Dedicated scalloper

Summer Rose has an innovative system of handling its fishing gear, with a pair of extending towing arms supplied by EK Marine taking the weight of the gear, and making the process of hauling safer and more efficient.

Dave Moore

Summer Rose has an 20.30 metre overall length, a 7.40 metre beam and has been designed specifically for scalloping, with a bespoke system to handle the gear. EK Marine supplied the hydraulic towing arms located on the shelterdeck aft of the wheelhouse, extending 2.50 metres out from each side. The principle is similar to a telescopic boom, with one heavy steel box section extending from inside another, and controlled from the fishing console in the wheelhouse.

The towing arms offer significant advantages in safety terms, doing away with the need to reach out to clip in a gilson hook as the hanging block is easily brought in to the side. A further advantage is that in a tight turn, the inner arm can be telescoped in, bringing the fulcrum point closer in to provide greater leverage.

EK Marine supplied Summer Rose's full package of deck machinery

The amount of deck space on board Summer Rose is noticeable, with only the split trawl winches located on the main deck itself. The keep working space clear, the gilson winches are fitted on the shelterdeck, while the pulling down winches are are mounted on the legs of the lifting gantry. The owners decided against a fully shelterdecked vessel, sacrificing this for easy access to the fishing gear as they operate in areas where frequent manual clearing is nothing unusual.

EK Marine supplied the complete load sensing hydraulic system and the full set of deck equipment, including tipping doors and catch conveyors.

Two wing and one central fishing consoles provide full control of the complete shooting and hauling system, including operating the tipping doors and the retractable towing arms. The main centre console, positioned close to the skipper’s chair, also provides a continuous warp length display.

Two split trawl winches positioned on raised beds forward on the main deck. These are angled slightly outwards to give straight leads over the top of the outer hull doors to the Fleming Fairleads hanging blocks on the retractable towing arms.

Rated at a 20-tonne core pull, the winches are fitted with two-speed drive motors for faster hauling and shooting. These heavy duty units are fabricated in special Hardox steel plate to minimise weight and are fitted with high specification SKF bearings and Haggunds compact motors. The drums are spooled with 228 fathoms of 26mm trawl wire supplied by Karl Thomson.

Twin 10-tonne gilson winches are mounted on the shelterdeck adjacent to the legs of the goalpost style lifting gantry amidships. Two 3-tonne pulling down winches are located on platforms welded to the tubular steel legs of the gilson gantry well above main deck level. One-tonne tipping winches, used when changing over dredges, are mounted on short derricks towards the top of the main lifting gantry.

All of Summer Rose’s the deck machinery is operated by a pair of  Kawasaki load sensing pumps driven from a Technodrive clutch mounted on a Mitsubishi S6B3 variable speed hydraulic engine developing 335kW. An electrically-driven 35kW power pack provides back-up hydraulic power.

EK Marine manufactured the 11 metre outer hull tipping doors, which were supplied as complete drop in units. These are pivoted at the gunwale rail and extend for more than half of Summer Rose’s length. Two hydraulic rams mounted just inboard of the main deck scuppers lift the doors. Manufactured from Hardox steel for maximum strength/weight benefits, the doors are sheathed with specialist heavy duty rubber to minimise abrasion.

11 metre tipping doors and stainless steel conveyors line the sides of the deck for more than half of Summer Rose's length

During hauling, the scallop bars are positioned along the top outer edge of the catch hoppers with the full dredges hanging down outboard. Teeth on the outer face of the doors engage in the specially extended bellies of the scallop dredges to hold them in position as they are swung through 170° to invert the dredges. Each dredge is given a shake to drop the contents into the rectangular section hopper that extends the length of the scallop bars. After emptying, the raised side panels are lowered back into their recesses on the outside of the hull allowing the gear to be shot away as usual.

Cameras are mounted on either side of the gilson gantry, constantly monitoring the number of dredges in compliance with a Marine Scotland initiative that enables boats to fish in areas where the number of dredges are limited to 8 or 10 each side.

Oban Scallop Gear supplied the frames and tooth bars, while the chain bellies came from Deeside Marine.

A slow-moving conveyor at the bottom of each side hopper leads scallops and stones through openings in the fully enclosed forecastle bulkhead to the catch handling area. The crew select scallops from the conveyor before stones and other debris are returned to the sea through side chutes. Generous provision is made for filled baskets of scallops, before they are transferred via a central chute down to the fishroom for bagging in 38kg bags.

The fishroom has capacity for 680 bags of scallops, even with the space taken by a one-tonne Ziegra seawater flake ice machine in a separate walk-in compartment at the fore end. The fishroom deck and bulkhead chilling system is installed by Premier Refrigeration. The copper chiller pipework is fitted to the engine room bulkhead and is protected by stainless steel sheeting. Stainless steel 22mm diameter piping is mounted on the deckhead.

Bagged scallops are unloaded using a EK Marine 8 metre stiff boom landing crane positioned to port forward on the shelterdeck, with the fishroom hatch offset to port, allowing space for an obstruction-free walkway from the deck casing to the forecastle, where the catch is sorted.