Lagoon · Catamaran

Lagoon 46

The Lagoon 46 is a 13.99 m cruising catamaran with naval architecture by VPLP, exterior styling by Patrick Le Quément and an interior by Nauta Design, built by Lagoon (CNB, Groupe Beneteau) in Bordeaux with infused, balsa-cored hulls and deck. Shown at Boot Düsseldorf in January 2019 as the successor of the Lagoon 450, it moved the mast further aft with a short boom and a self-tacking jib, put the flybridge helm on the centreline and comes with 3 cabins (owner’s version) or 4, each with its own head. Lagoon counted 185 boats sailing by February 2021 and now sells the same hull as the Lagoon 46 Iconic. There is no owner’s manual to download: Lagoon’s help centre refers owners to their dealer or, failing that, to info@catamarans-lagoon.com for a PDF.

Manuals & documents

The links go to Lagoon’s own documents — some as archived copies of pages the maker has since taken down. We host no manuals or drawings.

Equipment & its manuals

Standard equipment as the builder’s documents list it. Boats were ordered with options and refitted since — check what is actually aboard.

ItemModelManual / pageNote
EngineYanmar 4JH45 × 21,2,3,4,5,6Standard on 2019–2020 boats: inventories of January/May 2019 and July 2020, configurators of March 2019 and June 2020 and the July 2020 brochure (45 hp, common rail, with saildrive)Yanmar 4JH45 / 4JH57 Parts & service pageThe 2018 brochure and Lagoon’s web pages of 2019–2020 only say ‘2 × 45 to 2 × 57 hp’ without the make. Mechanical throttles at the flybridge helm, raw-water filter and an electric extractor fan; the sound-proofed engine rooms open through transom hatches on gas struts.
EngineYanmar 4JH57 × 23,4,7,8,9Option on 2019–2020 boats (‘Extra for 2 × 57 HP (Yanmar 4JH57)’ in the March 2019 configurator; in June 2020 it appears in the folding-propeller and electronic-throttle options); Lagoon’s pages of 2021–2023 list 2 × 45 or 2 × 57 hp, the current 46 and 46 Iconic pages 2 × 57 hp as standardYanmar 4JH45 / 4JH57 Parts & service pageLagoon does not say from which hull the 57 hp became standard, and its current pages do not give the engine type. Read the engine plate before ordering filters, impellers or belts.
SaildriveSaildrive × 21,2All years (inventories of January/May 2019 and July 2020: ‘sail drive’); leg type not named—Lagoon names no saildrive model, so read the plate on each leg before ordering seals, anodes or oil.
Propeller2-blade fixed × 21,2,3,4Inventories of January/May 2019 and July 2020; maker not named—Option in the 2019 and 2020 configurators: a pair of 3-blade folding propellers, offered for the 4JH45 and for the 4JH57.
Winches50.2 STA × 2 + 40.2 STA1,2Manual winches in the inventories of January/May 2019 and July 2020; maker not named—Lagoon gives only the size code, in the format Harken uses for its self-tailing winches, without naming the maker. Check the winches aboard before ordering spares.
Winches50.2 STA · Flatwinder3,4,5,10Options in the March 2019 and June 2020 configurators: an electric 50.2 STA (part of the ‘Essential’ pack), all-electric flybridge winches and the electric ‘Flatwinder’ mainsail traveller—Lagoon’s July 2020 brochure presents the electric traveller winch as part of the helm station, while the configurators list it as an extra and the inventories only manual winches; a SAIL review quoted on Lagoon’s news page calls it a recessed electric Harken winch. Check the boat.
Windlass12 V · 1700 W1,11,2,3,5Inventories of January/May 2019 and July 2020: vertical windlass in the chain locker with a 12 mm gypsy; maker not named. US boats: 1/2″ gypsy for inch chain (January 2019 inventory)—Reached through a vertical hatch. The chain runs over a composite beam to the anchor fairlead on the forward crossbeam, so it does not chafe the hulls (brochure). Option: windlass control at the helm with chain counter.
Anchor25 kg · 85 m × 12 mm · 20 m × 22 mm4Option: ‘Anchor set-up’ in the June 2020 configurator, with 85 m of 12 mm chain and 20 m of 22 mm warp; anchor type not named—
SteeringØ 900 mm1,2,5,3Single centreline flybridge helm with a covered 900 mm wheel and brake (inventories of January/May 2019 and July 2020); steering system type not described—The helm is reached from both sides, and the mainsail traveller controls are grouped there. Option: electronic engine throttles at the helm.
AutopilotB&G3,4Options in the March 2019 and June 2020 configurators: B&G autopilot remote and B&G rudder joystick at the chart table; a B&G navigation pack (‘2018/2019’, ‘2020’) is part of the ‘Essential’ pack—Lagoon does not list what the navigation pack contains or which autopilot computer is fitted. In the June 2020 configurator the joystick is marked ‘Essential compulsory’.
ChartplotterB&G Zeus3 16″ · Zeus3 12″3,4Options in the March 2019 and June 2020 configurators: Zeus3 16″ at the helm (2020: ‘with pod’) and Zeus3 12″ at the chart table (2020: on a leather-covered pod)B&G Zeus 3 / 3S / S Parts & service pageFurther B&G options: AIS 500 transceiver, 4G radar with stainless-steel guard (needs a display and the VHF), Forward Scan sounder, two cameras under the flybridge, V90S VHF (2019: two handsets with DSC; 2020: one wired handset, a wireless H50 as an option).
ToiletManual marine toilet × 3 / × 41,2,3,4One large manual marine toilet in every head (inventories of January/May 2019 and July 2020); maker not named—Option: electric toilets (2019 and 2020 configurators). Holding tanks: see the specifications.
HeaterEberspächer3,4Option in the March 2019 and June 2020 configurators: diesel heater with a water circuit; model not named—According to Lagoon it cannot be combined with the air conditioning.
Air conditioningCruisair · 52000 BTU (2019)3,4Option in the March 2019 configurator (reverse cycle, 52000 BTU) and the June 2020 configurator (220 V, rating not given)—According to the configurators it needs the generator and cannot be combined with the diesel heater.
GeneratorOnan 11 kVA · 220 V / 50 Hz3,4,1,2,5Option in the March 2019 and June 2020 configurators, with sound cocoon; the inventories provide a locker for it under a seat in the forward cockpit (port side in the 2019 inventory)—Lagoon names only ‘Onan 11 kVA’, not the generator model, so read the plate before ordering impellers or filters. The brochure says it sits on the centreline to balance the weights.
Watermaker63 l/h · 12 V3,4Option in the March 2019 and June 2020 configurators; maker not named—
Fridge12 V · 130 l1,2,3,4Galley fridge in the inventories of January/May 2019 and July 2020; maker not named—The ‘Essential’ pack adds a fridge/freezer on the starboard side of the saloon: 144 l (March 2019), a 90 l fridge drawer plus a 65 l freezer drawer (June 2020). Further options: 90 l freezer plus 155 l fridge instead, 80 l cockpit fridge (12 V), 220 V ice maker in the cockpit.
StoveGas · 3 burners + oven1,2,3,43-burner gas stove with grill oven, stainless-steel interior (inventories of January/May 2019 and July 2020); maker not named—Other galley options (220 V): microwave with grill, dishwasher and, in the 3-cabin version only, a washer-dryer.
StoveForce 103,4Option in the March 2019 and June 2020 configurators: Force 10 4-burner cooking table and Force 10 stainless-steel oven—
Gas system13 kg (EU) · 2 × 6 kg (US)2,11Bottle locker in the cockpit furniture: one 13 kg bottle on European boats, two 6 kg bottles on US boats (July 2020 inventory)—US-specification boats have a propane system with a solenoid valve (January 2019 inventory).
Water pump—1,2,3,4One main fresh-water pump group in the port companionway (inventories of January/May 2019 and July 2020); maker not named—Options: electric seawater pump with its own tap, dock water inlet; a deck-wash pump comes with the ‘Comfort’ pack.
Water heater60 l · 220 V1,2,11Inventories of January/May 2019 and July 2020: electric element and engine heat exchanger—US boats have a 110 V element (January 2019 inventory).
Bilge pump—1,2Per hull, in the inventories of January/May 2019 and July 2020: a manual pump worked from the cockpit, an automatic submersible electric pump and a non-submersible electric pump with manual switch—Makers and flow rates not given.
Furler—1,2Furling self-tacking jib with UV protection strip (inventories; ‘manual furler’ in January/May 2019); maker not named—
Batteries2 × 110 Ah + 3 × 140 Ah · 12 V1,2,3,4Two engine and three service batteries (lead-acid) and two 12 V 125 A alternators (inventories of January/May 2019 and July 2020)—Options: gel batteries instead (March 2019: 6 × 120 Ah service, 2 × 50 Ah engine) or AGM (June 2020); the ‘Essential’ pack adds three more 140 Ah service batteries and a battery controller. The battery breakers are in the engine rooms, port and starboard.
Charger40 A + 60 A3,4Option: part of the ‘Essential’ pack in the March 2019 and June 2020 configurators, together with the 220 V circuit; not in the base inventories; maker not named—
Inverter12 V / 220 V · 2000 VA3,4Option in the March 2019 and June 2020 configurators; maker not named—
Solar panels4 × 120 W (2019) · 4 × 115 W (2020)3,4Option: flexible panels, 4 × 120 W in the March 2019 configurator, 4 × 115 W on a stainless-steel frame aft of the roof in June 2020—
Audio systemFusion RA70N3,4Option: in the ‘Essential’ pack of the March 2019 and June 2020 configurators, with 6 speakers (saloon, cockpit, flybridge)—Further options: Bose speaker pack in the saloon, Fusion MSAV750/755 players with TV in the owner’s cabin and the saloon.

Specifications

Hull length13.99 m (45′11″)8
Length overall14.5 m (47′7″) with all options (Lagoon’s current page)8
Beam7.96 m (26′1″); the first issue of the January 2019 inventory gave 8.10 m, its re-issue of May 2019 and all later Lagoon documents 7.96 m2,11,1
Draft1.30 m (4′3″) in the 2018 brochure and the January/May 2019 inventories; 1.35 m (4′5″) on Lagoon’s web page from December 2019 and in the July 2020 inventory and brochure; 1.37 m (4′6″) on Lagoon’s current 46 and 46 Iconic pages6,1,12,2,5,8,9
Displacement15.75 t light (CE) and 23.2 t maximum laden (January/May 2019 inventories); 15.77 t light, CE (July 2020 inventory, Lagoon’s web pages 2020–2023); 16.6 t light, EEC (2018 brochure, Lagoon’s web page until December 2019); 16.32 t light, EEC (July 2020 brochure), 16.3 t on Lagoon’s current page1,2,6,5,8
Sail area140 m² upwind in the 2018 brochure (140.1 m²) and the January 2019 inventory; from December 2019 127 m² (Lagoon’s web page, July 2020 brochure, current page); the July 2020 inventory gives 123 m² with the standard high-roach mainsail and 127 m² with the square-top mainsail6,11,12,2,5,8
Mainsail87 m² full-batten, 89.6 m² square-top option (Lagoon’s web page, October 2018; the 2018 brochure gives 89.6 m² for the square top, the January/May 2019 inventories for the full-batten mainsail); from the July 2020 inventory 76.5 m² high-roach as standard, 80.5 m² square-top option (also on Lagoon’s current page)13,6,1,2,8
GenoaSelf-tacking jib 50.4–50.5 m² (2018 brochure, January 2019 inventory); 46.5 m² in the July 2020 inventory and brochure and on Lagoon’s current page; Code 0 option 105 m²6,11,2,5,8
Air draft23.21 m (76′2″) on Lagoon’s web page from December 2019, in the July 2020 inventory and brochure and on the current page; earlier figures: 23.99 m (78′8″) air draught in the 2018 brochure and 25.07 m ‘mast clearance’ in the January/May 2019 inventories12,2,5,8,6,11,1
Engine2 × 45 hp common rail (Yanmar 4JH45) as standard, 2 × 57 hp (4JH57) as an option in the 2019 and 2020 configurators; Lagoon’s pages of 2021–2023: 2 × 45 or 2 × 57 hp; current pages: 2 × 57 hp as standard5,3,4,7,8,9
Fuel tank2 × 520 l (2 × 137 US gal), aluminium, under the aft cabin floors; 1040 l in total on Lagoon’s current page2,8
Water tank2 × 300 l (2 × 79 US gal), 600 l in total2
Holding tank2 × about 120 l (240 l) under the passageway floors, port and starboard; US-specification boats: a holding tank with gravity drain and deck pump-out for each head2,11
Cabins3 cabins with 3 heads (owner’s version) or 4 cabins with 4 heads2
Berths6 to 12 (the July 2020 brochure says 6 to 10)2,5
CE categoryA (12 people), B (14), C (20), D (30)8
HullPolyester with anti-osmosis resin, hull and deck infused; balsa-cored hulls, bridgedeck and deck; laminated or glued plywood bulkheads; white gelcoat2
DesignerVPLP (naval architecture); exterior design Patrick Le Quément; interior Nauta Design2
BuilderLagoon, Constructions Navales Bordeaux (Groupe Beneteau), Bordeaux, France7
Versions3 cabins / 3 heads or 4 cabins / 4 heads; US specification with 120 V electrics, propane with solenoid valve and a holding tank in each head; now the Lagoon 46 Iconic, with a redesigned forward lounge (more sun pads), a forward swim ladder and the same published dimensions9,11,2
VersionsEquipment packs in the March 2019 and June 2020 configurators: ‘Essential’ (220 V circuit with 40 A and 60 A chargers, three more 140 Ah service batteries and a battery controller, electric winch, B&G navigation pack, Fusion RA70N audio, extra fridge/freezer in the saloon) and ‘Comfort’ (with the deck-wash pump, among others); generator, air conditioning, watermaker, inverter and solar panels as separate options3,4
Years builtFrom 2019 (world premiere at Boot Düsseldorf, January 2019); Lagoon now sells the 46 Iconic and calls the earlier boat ‘the previous Lagoon 46’14,8
Hulls built185 sailing by February 2021 (Lagoon news page, quoting SAIL Magazine); no later figure from Lagoon10

Good to know

  • Read the engine plate before ordering filters, impellers or belts. Lagoon’s 2019–2020 inventories and configurators list 2 × Yanmar 4JH45 (45 hp, common rail) as standard with the 57 hp 4JH57 as an option; its pages of 2021–2023 offer either, and the current pages list 2 × 57 hp as standard without saying from which hull.3,2,7,8
  • Lagoon’s rig figures changed during 2019: the 25.07 m mast clearance of the January 2019 inventory and the 23.99 m air draught of the 2018 brochure became 23.21 m, the upwind sail area went from 140 m² to 127 m² (123 m² with the standard mainsail), the self-tacking jib from 50.5 m² to 46.5 m² and the draft from 1.30 m to 1.35 m. Lagoon does not say whether the rig changed or the figures were corrected, nor from which hull, so get your hull’s sail plan before ordering sails or relying on a bridge clearance.12,11,6,2
  • Two Lagoon 46s can be equipped very differently. Chargers, the 220 V circuit, extra service batteries, the electric winch, the B&G navigation pack, Fusion audio and the second fridge came in the ‘Essential’ pack; generator, air conditioning, watermaker, inverter and solar panels were separate options. Check what the boat actually has before ordering parts.3,4
  • US-specification boats have a 120 V panel and sockets, a propane system with solenoid valve, a holding tank with gravity drain and deck pump-out in each head, a 110 V water-heater element and, in the first inventory, a 1/2″ windlass gypsy for inch chain. Keep this in mind when buying parts for an imported boat.11
  • Lagoon’s recall of fixed Goiot emergency hatches covers catamarans built from 2007 to 2019. The first Lagoon 46s were built in 2019, so ask a Lagoon dealer with your hull number (HIN) whether your boat is included. Lagoon also passes on Goiot’s advice to replace these hatches every 10 years, whether or not the retaining kit was fitted.15,14
  • 46 or 46 Iconic: Lagoon publishes the same hull length, beam, air draught and sail areas for both. The Iconic adds a redesigned forward lounge with more sun pads and a forward swim ladder; Lagoon does not say which spare parts the two share.9

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Sources

  1. web.archive.org/web/20191018105807/https://api.cata-lagoon.com//images/page/l/a/lagoon-46…
  2. web.archive.org/web/20230326235420/https://api.cata-lagoon.com//images/ged/l/a/lagoon-46-…
  3. web.archive.org/web/20190330143945/https://www.cata-lagoon.com/en/46/configuration
  4. web.archive.org/web/20200626021505/https://www.cata-lagoon.com/en/46/configuration
  5. emailing.catamarans-lagoon.com/brochures/01tAX000000FEpHYAW.pdf
  6. web.archive.org/web/20191018105800/https://api.cata-lagoon.com//images/page/l/r/lr-lagoon…
  7. web.archive.org/web/20230603211340/https://www.cata-lagoon.com/en/46
  8. catamarans-lagoon.com/boats/lagoon-46
  9. catamarans-lagoon.com/boats/lagoon-46-iconic
  10. catamarans-lagoon.com/news/article/lagoon-46-sail-magazine
  11. web.archive.org/web/20190919122303/https://api.cata-lagoon.com/images/page/l/a/lagoon-46-…
  12. web.archive.org/web/20191217205035/https://www.cata-lagoon.com/en/46
  13. web.archive.org/web/20181008055535/https://www.cata-lagoon.com/en/46
  14. web.archive.org/web/20190330142743/https://www.cata-lagoon.com/en/news/399/the-46s-world-…
  15. catamarans-lagoon.com/news/article/recall-goiot-products

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