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SEA CLASS Yacht for Sale

139' abeking & rasmussen | 2008 | $3,495,000.

• Yachts for sale
• motoryachts
• abeking & rasmussen

Last updated May 14, 2024

Sea Class Yacht | 139' Abeking & Rasmussen 2008

NO RESERVE AUCTION: In partnership with Boathouse Auctions, the 139’ Abeking & Rasmussen, SEA CLASS, is being offered for sale at auction without reserve. The preview period for interested buyers is currently in progress. Inspect in person, name your price online at the tap of a finger. Details, dates, full hull and engine surveys, photos, video, etc., can be found at https://boathouseauctions.com/auctions/sea-class-139-abeking-rasmussen-200

A superb display of European and American design and engineering. SEA CLASS was built by the renowned Abeking & Rasmussen shipyard of Germany and later completed a massive refit and hull extension by the finest American shipyard, Delta Marine, at a reported over $13,000,000 with no expenses spared on equipment and interior detail. The boat was almost never cruised from 2010 until the winter of 2015 when the previous owners took delivery.SEA CLASS offers 6 comfortable Owner's and Guests Staterooms and a spacious forward crew area for 6. She has excellent charter potential with low initial investment. The efficient hull design by the legendary Tom Fexas can easily achieve Expedition Yacht cruising range of 5,000+ nm range at 10 knots.

Recent service to hull including paint, shafts and stabilizer repairs.

Kurt Bosshardt

YACHT BROKER

C: 954.478.0356 | O: 954.763.3971

[email protected]

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Sea Class HIGHLIGHTS

• Yacht Details: 139' Abeking & Rasmussen 2008
• Location: Fort Lauderdale, FL
• Engines: MTU
• Last Updated: May 14, 2024
• Asking Price: $3,495,000
• Maximum Speed: 21 kn
• Max Draft: 6' 6''

Sea Class additional information

• Cruising Speed: 16 kn
• Beam: 23' 0''
• Hull Material: Aluminum
• Fuel Tank: 1 x 9664|gallon
• Fresh Water: 1 x 2300|gallon
• Pedigree Abeking & Rasmussen construction (aluminum hull and superstructure)
• Renowned Delta Marine, Seattle, WA extension, reportedly over $13,000,000 spent including moving rudders and running gear aft for optimum performance and steering
• Exceptional condition
• Zero-speed stabilizers
• Hydraulic passarelle
• MTU Common Rail engines with Blue Line controls
• Northern Lights generators
• ASEA shore power converters with seamless transfer
• Spacious crew quarters for 6 forward
• Summer 2019- Replaced both pairs of washers and dryers in the laundry center with Miele Commercial units
• Summer 2020- New compressors for galley refrigerator and freezer
• March 2021- New bottom paint. Running gear services and prop speed. Out of water survey and sea trial performed
• Full-beam master below deck and on-deck owner office (5 more guest staterooms below)
• 21 knot stop speed and 16 knots cruise speed (3,000+ nm range and cruise speed; 5,500 mile range at 10 knots)
• Completed yard period August 2019: Including new bottom paint and prop speed, bow thruster rebuild, shafts pulled and dialed in, stabilizers full bearing service, and stern passarelle removed, new seals on cylinders and replaced hydraulic lines
• Spring 2020- New inverter battery system (2820 amp hour) 12 hours run time added to existing 15,000 watts of Victron inverter power. Silent anchoring at night with genset off with A/C comfort in 3 staterooms and crew
• Summer 2017- Two new wave runners, ex sports models

Lower Deck The Owner's stateroom with centerline king berth is below amidship with entertainment center aft, beautiful his and hers onyx bathroom with centerline steam shower forward. Further aft to port is a queen berth stateroom with expansive desk area and ensuite bath with shower. There are two twin ensuite berth staterooms further aft, one with shower, one with a Jacuzzi. Main Level The Owner's office/library is all the way forward with spectacular windows. There is extensive desk space against the aft bulkhead. A serving pantry is further aft with cross ship access to the crew corridor. The main galley with granite counters and commercial stainless steel appliances including 2 refrigerators, 2 freezers, and alto-sham oven, also has access to the crew corridor and then out to the port side deck. A day head is outboard to starboard.  The dining salon is open to the main salon and is aft of the galley, with extensive crystal and table service storage around. The main salon is further aft with entertainment center against the aft bulkhead, L-shaped couches to port around a coffee table and two club chairs opposite. The salon benefits from large windows and beautiful high gloss pear woodwork. The main salon is further aft through two etched glass doors. This is a beautiful room, also finished in high gloss pear wood with couches to port and two game tables, each with four chairs opposite. There is access to the lower deck aft area from the starboard staircase or out to the open aft deck through two sliding glass doors. The forward crew area has a double cabin forward. A bathroom with stall shower is aft to port. Another upper and lower twin crew cabin is to starboard sharing the head to port. An additional crew cabin with upper and lower berths is aft to starboard with ensuite bathroom with stall shower. The crew mess is opposite and a crew entertainment center is inboard.  The engine rooms is next aft. Just aft of the engine room are two additional guest staterooms, the very spacious laundry center, and the large lazarette with ample storage for water sports gear and a watertight door out to the swim platform. The open aft deck has a teach table with seating for 8 to starboard, and a settee opposite to port. This deck is covered by the sun deck overhead. There is a spiral staircase to the boat deck and flybridge on the port side. Access to the swim platform is down a central stairway and access to the passarelle is slightly offset to port. This entire area was added during her refit and the running gear was moved aft. The lengthening, rebuild, repower, and refit was completed at Delta Marine, Seattle, under the supervision of Bill Langan.

• Anchutz Pilot Star D autopilot, rudder, jog control
• Nobeltec electronic chart system in Wheelhouse, new December 2015
• B&G Hydra 2000 instrument system, speed, wind and depth with 3-full function displays, and 2 repeater displays, one in the crew area
• New Touch Screen Sunlight readable navigation screen for flybridge helm
• Twin Furuno radars, 96-mile, one with ARPA
• Furuno color depth sounder with Simrad IS15 repeater on boat deck
• Twin Standard Horizon VHF's (1-full function mic repeats in captain's cabin, 1 mic repeats in crew quarters)
• Datamarine SEA 7157 VHF
• Datamarine SEA 235 HF/SSB radio telephone with digital tuner
• Thrane & Thrane Track phone F77 SAT COMTwin Mera Mini M satellite phones
• Navtex NCR receiver installed
• Twin Northstar GPS - WASS - DPGS
• Twin ACR spot lights, model RCL-100
• GSM cell phone
• Nightwatch alarm system and monitor with control system
• Panasonic closed circuit TV screen with camera controls
• Aft bridge Jacuzzi
• Nautical Structures davit / crane, 2500 lb
• Nautical Structures hydraulic swivel passerelle
• MarQuipt hydraulic swivel side accommodation ladder, starboard forward side
• Ideal vertical windlass, model V8C, with 150 kg., stainless steel Bruce anchor with 550' of 5/8" BBB hotgalvanized chain
• MTU 12v 2000 M92 Common Rail engines, new 2008, 1635 hp @ 2450 rpm, with only 1,563 port and 1,612starboard original hours as of April, 2021
• MTU Blue Line Controls with (2) cable control connection
• Koopnautic 3050 Zero Speed stabilizers with 12 sq. ft. fins
• Gearbox ZF model 2560 Marine Gear 3.3:1. Special transmission with trailing pumps to ensure proper lubricationand cooling when cruising for extended range
• (2) Bruton 5-blade props (new 2008) 1200 mm with 1260 mean pitch
• HEM water maker 2800 gpd, 3,344 original hours as of November 2020
• Aqua Air A/C 20-ton chilled water system with controls with submerged heating elements
• Aqua Air extensive air make up throughout the vessel. One new compressor and seawater coils replaced on bothcompressors, Summer 2019
• Alfa Laval fuel separatorEvac toilet, Head Hunter Tidal Wave MSD treatment system
• Night Watch alarm system control screen and monitor
• Engine start batteriesHouse batteriesGenerator start batteries
• Delta T engine room ventilation
• Silver Ion water purification
• MTU DiaSys engine monitoring system

Master Stateroom

• Samsung Ultra HD 40" TV, July 2018
• Samsung Ultra HD Bluray player, July 2018
• Marantz SR 6012 AV receiver, July 2018
• Apple TV, July 2018
• DSS Satellite receiver, U.S.

Guest Staterooms

• Denon DVD - 1000 DVD player
• Toshiba V-W57 VHS player
• Tot Vision 13.1" LCD TV
• DSS satellite receiver, U.S.
• Logitech Universal remote control

Dining Salon

• Samsung Ultra HD 50" TV, July 2018
• Marantz NR 1609 AV receiver, July 2018
• Marantz NR 1509 AV receiver, July 2018
• DSS satellite receiver, July 2018
• New HP Pavillion 24" All-In-One Touchscreen computer, October 2019

Queen Stateroom Aft

• Kenwood DVD/CD player

Twin Stateroom Aft

• DSS satellite receiver, US

Crew Quarters

• B&G Hydra system repeater
• Panasonic Closed Circuit TV screen with camera controls
• Logitec universal remote control
• VHF radio repeater
• Night Watch alarm system monitor and control screen
• 12/24 110/220V systems, 60Hz
• (2) Northern Lights generators, 99kW, 208-volt, 3-phase, 60HZ. Port hours= 9,142/Starboard hours= 9,134 as of March 2021
• Sound shields
• (2) ASEA seamless shore power converter units, Model AC75-3, 75kVa, each can be paralleled
• Computer network 10/100 mbps; 4 workstations; 9 wireless access points; 802.1
• 12 LAN ports throughout the vessel
• Panasonic Security System with 2 monitors and 4 cameras (2 fixed, 2 pan, tilt, and zoom)
• Seatel model 3294 satellite TV receiver - LNB US
• Rogue Wave WiFi booster, dual band antenna and modern upgraded, September 2020
• (4) Samsung hi-definition cameras added in engine room, March 2016
• Plex Media server networked throughout the whole vessel containing movies and series
• Air draft: 41' / 12.50m
• Waterline to highest unchangeable "hardscape" point: 38' / 11.58m
• (2) Yamaha wave runners
• (2) Paddle boards
• (2) 13' single-person ocean kayaks
• Givens 10-man, Model 10P (E) life raft 
• Givens 10-man, Model 10P (Solas B) life raft
• New hot tub on boat deck with sun pad
• New BBQ grill 2016

Schedule a Tour of SEA CLASS

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SIMILAR YACHTS FOR SALE View All

161' lawley 1905, genoa, italy, 155' pendennis 2004, jacksonville, fl, us, 144' heesen 1990, fort lauderdale, fl, us, 144' heesen yachts 1990, 139' abeking & rasmussen 2008, 138' motorsailer 2009, athens, greece, other abeking & rasmussen yachts for sale view all, 95' abeking & rasmussen 1954, amore mio 2, 171' abeking & rasmussen 1997, €24,995,000, 257' abeking & rasmussen 2011, €89,000,000, antibes, france, 85' abeking & rasmussen 1953, rapallo, italy, 82' abeking & rasmussen 1960, price watch.

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A superyacht captain shares 3 things people who want to charter a luxury vessel should know

• Vacationing on a superyacht may sound like it's all Champagne and sunbathing.
• But before boarding a luxury vessel, superyacht captain Kelly Gordon advises keeping certain things in mind.
• Yachting is a summer pastime with risks and nuances for clients and crew.

Jeff Bezos and Lauren Sánchez soaking up the sun. Travis Barker and Kourtney Kardashian's wedding . Beyoncé's carefree jump into the ocean.

One of these images is likely what comes to mind when you hear the word "superyacht," a phrase generally used to describe a yacht over 80 feet in length.

While ultra-luxurious vessels are associated with all things carefree, tragic events such as the sinking of the Bayesian superyacht off the coast of Sicily on Monday is a reminder that yachting is a pastime with unique risks and nuances. It's unclear what the protocols were on the Bayesian.

For those keen on the idea of chartering a superyacht, captain Kelly Gordon, 42, told Business Insider there are a number of important factors to consider before hopping on board.

Gordon fell in love with yachting after she stepped aboard a yacht for the first time in her mid-20s.

Hellbent on reaching captain level, Gordon quickly worked her way up the chain of command. She's spent most of her time sailing the Bahamas and the Caribbean and is now based in Florida, where she works as a captain on a 108-foot-long privately owned vessel.

Gordon, who has over 12,600 followers on Instagram , shares three factors to keep in mind before boarding a chartered superyacht.

Think of the process of chartering a superyacht as buying a house

One of the most important things to do when chartering a superyacht is to work with a charter broker, Gordon says.

"The charter manager's job is to No. 1: find you a safe boat," Gordon said, adding that in her experience, "Not all programs put safety as high up on the list as it should be."

She also likes to equate charter brokers to Realtors in that they take on the role of finding you the best option for your taste.

Related stories

"You find one that you gel with really well and has a good reputation, and then you discuss with them what your budget is, where you want to go, what your activity levels are, what your personalities are like," Gordon said.

Pairing clients with a crew that aligns with their characteristics is a huge part of a charter broker's job, Gordon said.

"If you think about it, you're living with that crew for 24/7, around the clock," she said. "You're not going put someone that just wants to sit and read books all day with a crew that's extremely active."

Find a crew that is competent and prioritizes safety

Charter brokers also help match clients with a competent crew that prioritizes safety.

"I don't know that many people realize just how much their life is in our hands when we cast those lines and we go to sea," Gordon said.

Part of that is having a safety briefing, which Gordon carries out every time she welcomes clients onto a chartered vessel before leaving a dock.

A thorough safety briefing includes informing clients about the location of safety equipment and lifejackets and the procedures for events such as a fire, a person falling overboard, or the boat sinking.

"You should have a safety briefing, and if you don't get one, you should ask for one," Gordon said.

The process, she added, can be different on privately owned yachts, where passengers may be familiar with the vessel.

The Bayesian is a private yacht owned by tech tycoon Mike Lynch; it's not yet known what kind of safety protocols staff and guests were trained on.

Make sure there's a member of the crew on watch 24/7

"A lot of charter guests think when they go to sleep, the crew goes to sleep," Gordon said.

But that shouldn't be the case, she added. "You want to be on a boat knowing that someone's up, because if the weather changes or the anchor starts to drag, you need somebody that's up and ready to go and get everybody else to handle it."

Among the biggest weather risks are tornados, which can be extremely difficult to predict and prepare for whether you're on land or at sea.

"I'm from the Midwest, where tornados pop up," Gordon said. "It's hard to see a tornado coming, and if you do see it coming, the tornado goes where it wants to go."

Most often, that leaves people near the weather event with just minutes to ready themselves, which is even trickier "in the middle of the night."

While rapid changes in weather are tough to contend with, Gordon recommends researching the areas you are sailing in beforehand, like you would when visiting a new country.

"It's no different than if you're going on vacation on land," she said. "You want to know where you're going. Don't put that just all on the crew."

While the research doesn't have to be as extensive as the crew should be doing, it's important to still be "responsible for your own self as well as your family and your guests."

Watch: Why it costs $1 million a day to run one of the world's biggest cruise ships

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Demystifying yacht classification A, B, C, D

N.B. For your information, a more recent article was published on 24 Oct 2022 on the same subject, click here for direct access.

Demystifying yacht classification :  Class A, B, C and D

Since 1998, CE certification is required for all recreational boats entering or being sold in Europe obliging boat manufacturers to respect certain building and security standards.  Therefore, yachts ( boats ) are classified into four categories depending on their aptitude to confront navigational conditions taking into account both force of the wind and height of the waves.  The categories are not to limit the area and distance of navigation (that is defined by security equipement onboard) but  to  sensitize the owner and/or captain of the boats capacities to navigate in complete security.

Let us start with the Beaufort Scale.   A scale for classifying the force of the wind ranging from 0 (calm) to 12 (hurricane).   It was devised by an admiral in the British Navy, Francis Beaufort, to uniform the description of the effect of different winds at sea.

There is a direct link between the Beaufort scale and boat classification.   For discussion purposes, we will use only the 6, 7 and 8 forces.

A Class A yacht ( boat ) is a vessel that is built to navigate the open ocean and surpass a force 8 on the Beaufort scale and surpass waves higher that 4 meters.   These yachts are constructed to be self sufficient in hostile seas.

A Class B yacht ( boat ) is a vessel built to navigate on the offshore waters (200 miles and less) and can substain UP TO force 8 and waves UP TO 4 meters.

A Class C boat is a vessel built to navigate inshore such as lakes, rivers, bays and close to the shore and can sustain UP TO force 6 and waves UP TO 2 meters.

A Class D boat is built for protected or sheltered waters such as canals, rivers, small lakes and sustain a force 4 and waves UP TO .3 meters (less that 1 ft).

With this said, you can understand that the Class A yacht ( boat ) respects a rigorous building code more so than a Class B and so forth.    But regardless of the class, it is strongly discouraged to navigate in a force 7 for the reasons of safety and comfort as « pleasure » should always be on the agenda.  Always consult the weather forecast prior to leaving any port and check hourly the weather situation.

Classification is very important and should be on your question list before purchasing any boat or yacht.

Classification rules are developed to assess the structural strength and integrity of the essential parts of the hull, the reliability and function of the propulsion, steering systems, power generation and all the other features installed on board which contribute to guarantee the main essential services of yacht.

Also for a class A, the portholes will be more resistant against a sustained wave, the drains to evacuate the water more abundant and of good size, the joints of the hull more hermetic, in short everything is in place to prevent water from s’ infiltrate on board.

By way of information, let us quote for example all the Ferretti yachts (60 to 96 feet), Pershing (60 to 115), the Riva (44 to 122) are all of class A just like the Magellano range at Azimut including also the 66 Flybridge.

Ferretti yachts (500, 550, 670 fly and over), Pershing (7X and over), Azimut Yachts (62, 64, 66, 68 Fly and over, the Sport Series 7X and over, all Magellano) are Class A.  There are also other classifications such as RINA and American Bureau of Shipping, Bureau Veritas, Det Norske Veritas, Germanischer Lloyd, Lloyd Register, that are more precise regulations and we will cover this later in another article.

Below is the graph of the Beaufort Scale along with photos.

Do not hesitate to contact us for any additional information, team Ita Yachts Canada is at your disposal.

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• Sea Class - 139ft Abeking & Rasmussen 2008

139ft Abeking & Rasmussen  2008  Ft. Lauderdale, Florida

Bidding ended: july 2, 2024, no reserve | opening bids expected between $2m–$2.5m.

139′ Abeking & Rasmussen 2008 Raised Pilot House

A superb display of European and American design and engineering. Sea Class was built by the renowned Abeking & Rasmussen shipyard in Germany and later completed an extensive refit at one of the finest American shipyards, Delta Marine. Sea Class offers 6 comfortable staterooms, a spacious forward crew area for 6, and excellent charter potential. The extremely efficient hull design by the legendary Tom Fexas can easily achieve a cruising range of 5,000+ nautical miles at 10 knots (see fuel burn table in the vessel survey, page 5).

AUCTION PROCESS: Auction participants register to bid by clicking the “Register To Bid” button and placing the required bid deposit of $100,000. This is a no reserve auction with opening bids expected between $2M – $2.5M. A buyer’s incentive of up to 8% is being offered. Please see the Opening Bid Incentive form for details.

Vessel Survey May 8, 2024

RPM Engine Survey May 8, 2024

Oil Analysis May 10, 2024

Opening Bid Incentive

Purchase & Sale Agreement

Vessel Specifications

Amenities & Features

• Six elegant staterooms and a spacious forward crew area for six. Sea Class has excellent charter potential with a low initial investment.
• MTU 12v 2000 M92 Common Rail engines, new 2008, 1635 hp @ 2450 rpm, with only 2,158 port and 2,206 starboard original hours as of May 2024
• The extremely efficient hull design by the legendary Tom Fexas can easily achieve a cruising range of 5,000+ nautical miles at 10 knots
• Koopnautic 3050 Zero Speed stabilizers with 12 sq. ft. fins

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Vessel Survey May 8, 2024 5.5 mb Download

RPM Engine Survey May 8, 2024 156.1 kb Download

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SEA CLASS YACHT CHARTER

47.24m  /  155'   christensen   1997 / 2023.

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Cabin Configuration

Special Features:

• Outstanding range of water toys and accessories
• Competent and dynamic crew
• Well-appointed interiors with warm and welcoming styling
• Huge sundeck
• Inflatable in-water pool

Luxury yacht LOON has a wealth of experience chartering in the Bahamas and the Caribbean, promising the yacht charter vacation of a lifetime.

The 47.24m/155' motor yacht 'Sea Class' by shipyard Christensen offers flexible accommodation for up to 12 guests in 6 cabins and features interior styling by Glade Johnson Design.

Motor yacht Sea Class boasts a wealth of convivial spaces, perfect for luxury yacht charters with families of friends, offering ample opportunities to kick back and relax, or enjoy the water on the yacht's array of water toys, the choice is yours.

Guest Accommodation

Built in 1997, Sea Class offers guest accommodation for up to 12 guests in 6 suites comprising a master suite, four double cabins and one single cabin. She is also capable of carrying up to 10 crew onboard to ensure a relaxed luxury yacht charter experience.

Onboard Comfort & Entertainment

Keeping comfortable and entertained on Sea Class is easy thanks to the available amenities, particularly a deck jacuzzi, perfect to enjoy the scenery with your favourite drink in hand.

Sea Class benefits from some excellent features to improve your charter, particularly Wi-Fi connectivity, allowing you to stay connected at all times, should you wish. You can stay comfortable on board whatever the weather, with air conditioning during your charter.

Performance & Range

Built with a GRP hull and GRP superstructure, she benefits from a semi-displacement hull to provide exceptional seakeeping and impressive speeds. Powered by twin Deutz engines, she comfortably cruises at 13 knots, reaches a maximum speed of 16 knots with a range of up to 3,500 nautical miles from her 12,001 gallon fuel tanks at 10 knots. Sea Class features at-anchor stabilizers providing exceptional comfort levels.

Set against the backdrop of your chosen cruising ground, you and your guests can enjoy endless days of fun on the water with the exceptional collection of water toys and accessories aboard Sea Class. Principle among these is a Flyboard for soaring over the water or swimming like a dolphin. Additionally, there is a Funair waterslide for hours of fun for all ages. Guests can feel the wind in their hair and jump the waves on one of the four SeaDoo GTR WaveRunners. If that isn't enough Sea Class also features towable toys, waterskis, a seabob, wakeboards, kayaks and much more. Sea Class features two tenders, but leading the pack is a 11.28m/37' Everglades Tender to transport you in style.

Based in the magical waters of the Caribbean all year round Sea Class is ready for your next luxury yacht charter. Let Sea Class Discover the magical places, food and experiences of the the Caribbean.

Luxury motor yacht Sea Class is one of a kind, offering world-class onboard amenities coupled with an overflowing toy box full of the latest water sports gear for unforgettable yacht charters wherever you are.

TESTIMONIALS

There are currently no testimonials for Sea Class, please provide .

Sea Class Photos

Amenities & Entertainment

For your relaxation and entertainment Sea Class has the following facilities, for more details please speak to your yacht charter broker.

Sea Class is reported to be available to Charter with the following recreation facilities:

• 1 x 11.28m  /  37' Everglades Tender
• 1 x 4.57m  /  15' Sealver Jet Tender RIB Tender

For a full list of all available amenities & entertainment facilities, or price to hire additional equipment please contact your broker.

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For a full list of all available amenities & entertainment facilities, or price to hire additional equipment please contact your broker.

APPROVED RYA WATER SPORTS CENTRE

Your family and friends could learn to use the water toys on your charter vacation onboard this luxury charter yacht. Motor Yacht Sea Class is a certified RYA Training Centre yacht.

'Sea Class' Charter Rates & Destinations

Summer Season

May - September

$190,000 p/week + expenses

High Season

Cruising Regions

Caribbean Bahamas

Winter Season

October - April

$220,000 p/week + expenses

Caribbean Antigua, Bahamas, Saint Martin, St Barts

HOT SPOTS:   Virgin Islands

Note: Not for charter to U.S. residents while in U.S. waters

Charter Sea Class

To charter this luxury yacht contact your charter broker , or we can help you.

To charter this luxury yacht contact your charter broker or

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In focus: the versatile new workboats being built for the Royal Navy

In September 2017 it was announced that Atlas Elektronik UK (AEUK) had won a £48M contract to supply up to 38 modular, multipurpose workboats for the RN. In this article, we look at these small craft in detail and how they will deliver enhanced capabilities to the fleet.

Project Vahana is the RN’s plan to replace a miscellaneous collection of launches and workboats (under 20m in length) with new vessels. These boats will be known as the ‘SEA class’ and there will be several variants based on a common hull. The first, and by far the largest vessel, survey launch HMS Magpie, has already been delivered and commissioned. More deliveries are due this year with the last boat due in service by 2021. AEUK is also responsible for the provision of initial in-service support for the vessels from 2018-24, which includes spare parts, regular maintenance and training.

The majority of the SEA class construction is being done in the UK. The main manufacture and assembly is done at AEUK’s Winfrith facility in Dorset, with testing on the Bincleaves Range in Portland Harbour. The boats will all be powered by two Yanmar marine diesels (which range in output from 350hp to 1000hp) prepared by Barrus Ltd at their custom engine facility in Bicester. Mashfords Boatyard at Cremyll, near Plymouth, has also been subcontracted for some assembly work. BMT Defence Services are supporting the project by providing safety, environmental management analysis and technical documentation.

The workboat fleet

The baseline workboat design can be customised with removable modules which can be transported by road, allowing the craft to be adapted for different tasks. All variants are capable of operating in up to Sea State 4 and sustain a maximum of 25 knots. Enduring high speeds in small craft, in all but the calmest seas, is very tiring for crew and passengers so KPM Marine DS100 shock-mitigation seats are fitted throughout. Living space is confined but all of the boats have at least 2 or 4 berths, a toilet, shower and galley in the forward area under the wheelhouse. Provision of basic accommodation for personnel extends the boats potential operating area and time in use.

Most of the workboats will be based in and around the three RN naval bases. Three of the 11m boats will be allocated to Hydrographic survey ships and replace the existing 9m Survey Motor Boats on board HMS Echo and Enterprise and Arctic patrol ship, HMS Protector. All three 13m boats will be allocated to HMS Prince of Wales as Passenger Transfer Boats (PTB). Able to embark 36 passengers, the boats are lowered to the water vertically through the sponsons that overhang from each side of the carrier. PTBs are intended to move personnel to and from shore, especially where port facilities are too small to allow the carrier alongside but are not intended for use in the amphibious assault role. (It should be noted that HMS Queen Elizabeth can embark three of the four ALN-139 passenger transfer boats of a quite different design supplied by Alnmaritec in 2017).

• Survey / Passenger Transfer
• Officer Training / Diver Support
• Bridge Layout

It is also likely the workboats will be embarked on Royal Fleet Auxiliary ships and Ocean survey vessel HMS Scott. Seven of the boats will be fitted with a diver support module and will be used to train and support personnel of three Fleet Diving Groups. Eight of the boats will be based on the river Dart for use by officers under training at Brittania Royal Navy College. They will replace the fleet of ageing picket boats used by the college for basic navigation, seamanship and leadership training. The officer training module will have additional bunks, workstations and teaching space.

HMS Magpie will be complemented by three 15m boats fitted with a survey module for other inshore and harbour hydrography work. The balance of boats will be used for general logistic and transport tasks and are fitted with a small davit for embarking stores. The Royal Marines will also receive some of the smaller boats to support amphibious training and operations.

Other than HMS Magpie, The hull form of the SEA class is derived from the same 11mm ARCIMS (Atlas Remote Capability Integrated Mission Suite) boats already in service with the RN being used to develop autonomous mine warfare. There are four size variants; 11m, 13m, 15m and 18m length. The boats are constructed from glass-reinforced plastic and are propelled by Yanmar diesels driving twin waterjets. All have common steering and control systems and components which will simplify operator training, logistics and maintenance. The boats could be further adapted in future as their control systems are compatible with the ATLAS autonomy engine designed by AEUK for unmanned surface vessels. AEUK is also developing compatible littoral anti-submarine technology to be embarked in small boats, in addition to their proven minehunting and hydrography packages.

The RN has already begun training coxswains who will drive the new SEA class with courses run at HMS Raliegh. Army Combat Support Boats have been used until the new boats are available – they possess similar twin engines with steerable pump jets which allow the boats to traverse sideways. This greater manoeuvrability assists in coming alongside jetties where space may be limited. Waterjet powered workboats handle quite differently to Pacific 24 RIBs which most RN seamen are currently trained on.

• Cadets / Dive

Under a subcontract with AEUK, Safehaven Marine based in Cobh, Ireland, experts in high-performance small craft, constructed HMS Magpie to their proven Wildcat 60 design. Following initial Sea Trials, the vessel was delivered to Portland for additional equipment fit and acceptance trials. She arrived in Devonport for the first time on the 22nd June and was formally commissioned into the RN on 28th June.

HMS Magpie is a major upgrade on HMS Gleaner, the vessel she replaced, with a big increase in displacement from 22 tonnes to 37 tonnes. Magpie is also capable of double the speed (23 knots) and transits in rough conditions, she is fitted with a very sophisticated navigation and communications package supplied by AMBEX. Her raised bridge deck gives the helmsman and navigator a good view, enabling safe close-quarters manoeuvring.

There is accommodation for her 9 crew to sleep on board in two cabins and is fully air-conditioned throughout. Her main cabin is fitted with a small dining area which opens onto the main working module, incorporating computer racking for electronic equipment and workstations for 6 personnel. A Palfinger PK6500 crane is fitted for lifting cargo and survey equipment on to her aft deck area, which also has a small winch for deploying hydrographic sonar equipment.

It is still early days but the SEA Class workboat project appears to be a very cost-effective procurement that will give the RN a standardised, but very flexible fleet of small craft to serve in a wide range of roles.

Related articles

Interesting in a good way 🙂

Why are the transfer boats of Queen Elizabeth and Prince of Wales different?

My guess is that it’s down to when the respective sets of boats were ordered.

From promotional material I saw from Alnmaritec, after the delivery of the first of QE’s personnel transfer boats, they were definitely hopeful of further orders for the rest of the fleet. Price I dare say was a prime consideration. http://www.alnmaritec.co.uk/component/zoo/item/aln-138-ptb-swordfish-hms-queen-elizabeth-carrier

Why on earth would anyone bid against safehaven when they know that the contract is as good as theirs already for political reasons?

Because it isn’t? There’s no Irish EPV tender out yet and it may not come this year due to the Air Corps Casa replacement being brought forward so at least 100 million going on that sooner than planned, so 2019-2020 I’d say. Added in the deteriorating relationship between Dublin and London, and the uncertainty of Brexit. I wouldn’t be surprised that the EPV goes to an EU 27 country

I can’t see why they would go to a british yard either, but STRN has a fairly reliable veiw of inside thinking. The UK ship building industry has destroyed it reputation for quality and it’s bound to be much cheaper somewhere else. The Irish prime minister has indeed made some lunatic and unhelpful anti UK statements. It’s funny how competition and procurement rules suddenly change when some dodgy swap deal can be arranged.

No, the UK Press has reported such, his statement on Open Skies has been something that most of the airlines have been saying for years now, but that’s besides the point, the view from Dublin is that it’s London that’s been “unhelpful”, to the point of being hostile.

STRN might have insight from the UK side, but as I’ve said from the Irish side, there’s no movement on the EPV. The CASA’s jumped the line and their tender process is current and so will take at least 100 million (more if we get a third for general cargo runs), EPV is still “working on it”, and with the predicted lifespan of the government running out somewhere around 2020 there’s little time for it.

How did you come to this assumption that the Uk shipbuilding industry has destroyed its reputation for quality and how it is bound to be much cheaper elsewhere. Please enlighten me.

What you talking about! The last few biggest Irish navy ships were built in the uk! The offshore patrol boats! Ireland was very happy and I’m sure they will be more built in the uk! Britain has a great ship building industry, not huge anymore but we have been building warships since warships were invented! Idiot.

To be fair that’s because they were dirt cheap, and even then we’ve now had two out of the 4 have issues due to Appledore fitting out on the seabed, one with shaft problems and the other with gear box issues.

Not sure who will get the contract for the next program, the Eithne replacement, but I’d have doubts if it’s a UK yard.

‘I see no guns’ as the late Admiral Horatio Nelson once famously exclaimed; thus continuing the RN’s current gamble that none of its ships will ever engage the enemy; let alone engage them more closely. Why?

Our cousins say of all their boats….. if it floats it fights….. and as such all these little boats must have mounts for automatic weapons as they will likely at some point be tasked with something unexpected… good point 4th. I am dismayed at the MOD position of under arming everything. Its as if weapons are unacceptable to some of the public.

Bet the Russians are s…..g themselves.

Don’t worry, the big unarmed steel box will frighten them off.

What big steel box is that?

I am equally dismayed that unarmed utility craft are being designated with the prefix HMS.

The workboats will not be prefixed HMS. Only HMS Magpie which follows a long tradition of small inshore hydrographic survey vessels serving in the Royal Navy

Retard! These boats are for light duties!

I don’t know if these boats specifically need to have any weapons on board, but a mount for optional armament, such as a GPMG, might not be a bad idea. However, I don’t think the Sea class would be a good derivative for the Gibraltar Squadron replacement. Something more like the MK VI patrol boat that we are getting for the US navy would be perfect. A relatively inexpensive, off the shelf design, but still with enough teeth to protect the QEC from suicide boat attacks when they come to port. The MK VI would also be more intimidating to Spanish OPV’s that often make incursions into Gibraltar waters, though I don’t see that ever coming to blows.

If Safehaven marine wants to sell their Barracuda design, I think that is better suited for the RGP marine force.

MK 6 PCs Inexpensive! I have been working on the bloody things last year. They come in at around 15 mil Dollars a pop…and thats for the USN to buy. No doubt they would be more expensive for the UK. They are the BMW of patrol boats…everything is an optional extra at a premium price.

It checks all the boxes as far as bigger, faster, and more heavily armed. And now that the RN has aircraft carriers stopping through, the last thing the MoD needs is something similar to what happened to the USS Cole or the Saudi ship off of Yemen. And I understand that the budgets are clearly different for the USN and the RN, but $15 million (£15 million for easy math if it is more expensive) per patrol boat for two replacements seems a worthy investment to protect a £3 billion carrier when she is in the narrow waters off Gib.

Edited to add that I did include the qualifier, relatively inexpensive.

I agree that barracuda design looks bad ass, with the gun automatically poping out from the front when needed! It’s fast aswell. Looks amazing. Not sure if big enough though! I wonder if there’s a slightly larger design.

They are currently building a new hull for a trans Atlantic speed record after their round Ireland record, maybe that design could be looked at to modify if there was a customer that wanted it.

Spent all the money on a giant codpiece

All told a nice bit of procurement.

Got me thinking how it’s always amusing to read the active fleet lists of other navies. Although complaints about the Royal Navies decline are still completely valid if we included every harbour tug, landing craft and the RFA into the total we’d have a naval fleet of hundreds as well!

Not many ‘workboats’ around dockyards are navy owned. All tugs and pilot launches are are Serco.

Only RM landing craft, ORCs and IRCs, assorted training small craft, MoD Police launches and RIBs are owned by MoD. There are quite a few PAC 24s doing a variety of roles.

I’m aware Serco own and operate all of the harbour tugs and other assorted boats, but regardless of who they belong to they serve the same function as their equivalents in other navies.

When other nations choose to include every single little boat operated in support of their active fleets as part of the overall total it’s makes these services look far bigger at a cursory glance than they actually are!

Ref the boats for Britannia, It’s all well and good making these vessels highly maneuverable but the US Navy has had plenty of cases of collisions due to poor seamanship. If you train boat handling on something that spins in its own length and crab sideways, you’re only storing up problems for when the junior officers get out in the real world.

You are probably right. RN ship handling has been Excellent. Midshipmen learned ship handling in commanding the Battleship or Cruiser’s steam pinnace. Although they had plenty of hp at their command; I believe maneuvering was still difficult due to length of the keel. Not named HMS they still carried a 2 pounder gun and sometimes more.

Satellite Photos Show Aftermath of Strike on Russian Black Sea Ships

U kraine has released satellite imagery that it says shows the impact of a stealth drone attack on Russian Black Sea fleet ships in Crimea.

Kyiv's military intelligence, the GUR, wrote on X, formerly Twitter , on Friday that its naval drones had destroyed two small Russian landing boats near Uzka Bay, close to Chornomorsk, in the overnight attack, with both sinking to the bottom of the seabed. Newsweek is trying to substantiate these claims.

Kyiv has been stepping up its attacks on the peninsula, which it has vowed to recapture from Russia as one of its war aims. Satellite images from last month showed Russia's Black Sea Fleet is fleeing from the port of Sevastopol in Crimea to Novorossiysk in Krasnodar Krai in southern Russia and the Russian naval port in Feodosia on the annexed peninsula, amid a string of targeted attacks.

Days earlier, on September 22, Kyiv launched a missile attack on the Black Sea Fleet headquarters in Sevastopol, reportedly killing a number of leading officers.

The one-minute video released on Friday purports to show a drone approaching the two small Russian landing boats near Uzka Bay. This is followed by smoke rising up in the night sky. The GUR later released a satellite image, which it said shows a damaged vessel and a burnt pier. The vessels were identified as a Project 1176 Akula-class small landing ship and a Project 11770 Serna-class small landing ship. Newsweek has yet to verify independently the details of Friday's video.

The GUR said that, as well as a crew being on board, the Serna-class vessel was loaded with armored vehicles, including BTR-82 armored personnel carriers.

Moscow has previously used Serna-class ships to provide cover for Russia's Black Sea Fleet ships during raids when Russian forces lacked naval air-defense equipment, the GUR added.

The Kremlin-affiliated milblogger Rybar said that Ukraine carried out the strike using four unmanned boats in what had been one of three attacks on Crimea that day.

The channel added that Ukrainian forces had tried to conduct a drone strike on an oil depot in the town of Feodosia and a Neptune cruise missile strike on naval and intelligence bases in Chornomorsk. However, the Russian Ministry of Defense said that air defenses had managed to intercept these missiles. Newsweek has emailed the MoD for comment.

The Institute for the Study of War ( ISW ) said in its update that Ukraine has been conducting an interdiction campaign against Russian military infrastructure in Crimea, in particular against the Black Sea Fleet since June.

This was an attempt "to degrade the Russian military's ability to use Crimea as a staging and rear area for Russian operations in southern Ukraine," the U.S.-based independent think tank added.

Alexander Musienko, head of the Kyiv-based Center for Military Legal Research, told Current Time TV that the strike was part of a systematic approach by Ukraine. He added that there were previous strikes on the headquarters of the Black Sea Fleet in September and the Kerch Bridge, this month.

"This is the implementation of a strategy to establish dominance on the part of Ukraine in the northwestern part of the Black Sea," Musienko told the independent Russian-language news outlet.

"The purpose of these attacks is to demonstrate nothing other than naval warfare. And Ukraine is waging this naval war with the means that we have available, including surface drones," Musienko added.

Andriy Zagorodnyuk, Ukraine's former defense minister who now advises the country's Defense Ministry, told Newsweek that Kyiv is planning to eventually liberate Crimea .

"The only way to get out of this situation is to destroy the Black Sea Fleet, to destroy their capability to pursue occupation of the Black Sea and restore freedom of navigation," Zagorodnyuk said.

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