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Seller's Description

Back Forty is a wonderful example of the extremely popular Lagoon 450 for sale now, with upgraded Yanmar 57 HP diesel engines, generator, air-conditioning, B&G electronics, autopilot, dinghy and more.

This 4-cabin, 4-head Lagoon 450 has always been taken care of by a professional crew. The Lagoon 450, with her award-winning flybridge, must be the ultimate in comfortable catamaran cruising. Whether you are planning a day trip with family, friends or an adventure sailing longer distances, this remarkable model lends herself effortlessly to match all requirements. Soon more and recent pictures and video’s.

Additional Details

Manufacturer Provided Description

Replacing a catamaran that has come to be seen as a benchmark is no easy task. But the VPLP architects, in partnership with Lagoon and the celebrated Nauta Design studio, have been brilliantly successful in creating the new Lagoon 450.

Electronics & Navigation

All B&G Electronics Chartplotter Autopilot Wind and depth display VHF Windlass anchor remote at helm Fusion stereo Bose sound system in salon

Deck

Storage locker on aft cockpit port-side Big storage locker Access to the windlass and chain locker by a vertical pannel BBQ connected to the propane system Blue light at transom above the waterline Custom hardtop bimini by Dedicated Marine 2 solar panels on the bimini All electric winches, starboard side of helm for mainsail halyard and reefing lines and genoa, on port side for genoa halyard, spi (option), toping lift, for genoa on port side1 winch, size 50,for main sheet, traveller and furler Electric windlass, Vertical axe windlass 12V 1700W in anchor locker, with 12 mm gypsy 8 mooring cleats Vertical axe windlass 12V 1700W in anchor locker, with 12 mm gypsy Trampoline with knot-less nylon netting Extern stern pulpits Inboard stern pulpits including on portside flagpole fittings and buoy support Composite forward longitudinal beam with recessed chain run and mooring cleat Aluminium crossbeam with furler genoa chain plate, anchor roller and navigation lights Mainsheet traveller track and ball-bearing car 2 genoa tracks with genoa car and stopper Cockpit table Cockpit fridge 12V

Cockpit

Large cockpit usable as deck salon, protected by fixed composite bimini with recessed cockpit lighting U-shape foredeck seating area with technical generator locker on the front Removable wood varnished cockpit table accommodates 8 / 10 people, with protective cover 2 storage lockers in stern crossbeam Large storage locker Synthetic resin countertop Sliding window between cockpit and galley Direct access from cockpit to helm station on starboard side Lazy boy on starboard side with storage locker Bin with upper access and front door Storage locker with top access (70 liters / 18 gallon US ) with drainage Aeration hatch - Opening roof on the fly for cockpit aeration Storage for 2 gas tanks on starboard side of the cockpit Built-in storage area for cockpit table in bimini ceiling Polyester non streaming toe rail on the cockpit sides

Galley

Galley in main salon to starboard with direct access to cockpit through sliding window White synthetic resin countertop Double stainless steel sink with chrome-plated mixer tap hot and cold water Integrated dish drainage area. Cutlery drawer Storage under sink 3 burner stove / oven with grill stainless steel 12V fridge 130L / 34 US Gallons, front loading

Accommodations

Two aft staterooms with en-suite bathroom and queen berths 6’9” x 5’3” Two forward staterooms with en-suite bathroom and double berth 6’9” x 4’3” 6’6” headroom and individually controlled air conditioning Each bathroom has a dry head, separate shower Salon table convertible to a berth Starboard-bow cabin with AC A/C 15,000 BTU in the salon, 7,000 BTU in the aft cabin and 5,000 BTU in the bow cabin Fans in salon and cabins Alpi teak interior

Engine

Upgraded 57 HP Yanmar engines Starboard engine 1850 hours Port engine 1950 hours New sail drive seals and service, October 2019

Electrical

Main 12V electrical panel starboard side of salon next to companionway with wood protection LED lights Ammeter, voltmeter, circuit breakers, back lighting, water gauge, 12V outlet, fuel gauge 2 engine start batteries: 12 v- 110 Amp 3 house batteries: 12 v-140 Amp 110V Electrical circuit Air Conditioning in all units Onan generator 15 KVA 110V - 10801 Hours Cruise Ro Watermaker 110V 38 G/hour House batteries, November 2019 Engine start batteries, December 2018 600 VA Inverter, July 2019 2 Solar panels All-electric flush toilets All discharge lines clean and serviced Full generator service September 2019

Flybridge

Twin deck access stairways from deck Large bench seat for 6 people Ergonomically-designed helm station with leathered wheel with brake, engine throttles,engine panels, hourmeters, compass, large instrument console for electronic displays, cup holders, rope storage Protection cover for helm position Space storage around lateral staircases of the flybridge Sun pad place in front of the helm station

Sails

1 dacron full roach full batten mainsail 1 furling genoa with UV protection All sails original

Rigging

Standing Rigging

Aluminium mast with mainsail track and ball-bearing Double pushing spreader rig 1 aluminium boom 2 shrouds with chafe guards 2 lower shrouds 1 forestay with furler for genoa 2 mainsail lazy-jacks for battened main sail

Running Rigging

1 double-purchase spectra mainsail halyard 1 spectra genoa halyard 1 mainsail sheet pre-stretched 2 genoa sheets pre-stretched 3 mainsail reefing lines pre-stretched 1 genoa furling line pre-stretched 2 mainsail traveller car control lines pre-stretched

Toys and Tender

2 Standup boards 7 Sets of snorkeling gear 1 Wakeboard 1 Swim mat 1 Kayak Tender 12Ft - 15 Hp Yamaha 2 stroke

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Specs

Designer
Van Peteghem/Lauriot-Prevost
Builder
Lagoon Catamaran
Associations
?
# Built
?
Hull
Monohull
Keel
?
Rudder
?
Construction
FG

Dimensions

Length Overall
45 9 / 14 m
Waterline Length
?
Beam
25 9 / 7.9 m
Draft
4 3 / 1.3 m
Displacement
33,080 lb / 15,003 kg
Ballast
?

Rig and Sails

Type
Sloop
Reported Sail Area
1,398′² / 129.9 m²
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
76 6 / 23.3 m
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Yanmar
Model
4JH45
HP
90
Fuel Type
Diesel X 2
Fuel Capacity
275 gal / 1,041 l
Engine Hours
?

Accomodations

Water Capacity
92 gal / 348 l
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
?

Hull Speed

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Formula

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL

?
Classic formula: ?
Sail Area/Displacement
21.7
>20: high performance

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

Formula

SA/D = SA ÷ (D ÷ 64)2/3

  • SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D: Displacement in pounds.
21.71
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
?

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Formula

Ballast / Displacement * 100

?
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
?

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

Formula

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
?
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
?

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Formula

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
?
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
3.2
>2.0: better suited for coastal cruising

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

Formula

CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
3.22
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Sail area:
Full-batten mainsail 79 m² / 850 sq.ft.
Square top mainsail (opt.) 81 m² / 872 sq.ft.
Furling genoa 51 m² / 549 sq.ft.
Code 0 (opt.) 93 m² / 1001 sq.ft.
Nauta Design

This listing is presented by MultihullCompany.com. Visit their website for more information or to contact the seller.

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