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Seller's Description

The 2005 Beneteau 423 has been named “Boat of the Year” by Cruising World Magazine and also won SAIL Magazine’s Top 10 Sailboats.

VOLVO PENTA 55HP DIESEL ENGINE - ONLY 745 HOURS - UPGRADED ELECTRONICS - 2 CABINS - 2 HEADS - BOW THRUSTER - FRESHWATER ONLY - METICULOUSLY MAINTAINED

Experience the ultimate sailing adventure with “Amsterdam,” a meticulously maintained and very unique 2005 Beneteau 423. Designed by the famous Group Finot, naval architects with more production boats than any other design firm, the 423 has both brawn and beauty. She is built to sail confidently is any sea, yet lacks nothing in comfort and style.

Down the companionway steps, youll discover an imaginative interior design that will delight the most demanding cruiser. The hallmark Beneteau joinery work beautifully frames a layout that boasts loads of storage and light. In the forward master cabin, theres a comfortable centerline berth with innerspring mattress and sitting area and two wonderful bureau drawers under the berth. A private master head features a stall shower.

In the salon, entertaining at the dock or cruising with style wide beam and large dinette and settee also feature abundant storage. A great forward-facing nav station is large and also features storage areas. The L-shaped galley features a 3-burner Force 10 propane range & oven, a microwave and large front-opening refrigeration and a separate reach-in freezer for ample provisioning for cruising or dockside partying.

Built to CE Offshore A Category standards. The hull is hand-laid solid GPR with an anti-osmosis vinylester barrier under the gel. Beneteaus patented GRP Grid construction is chemically bonded to the hull with a proprietary polyester adhesive compound. Non-woven stichmat fiberglass and unidirectional roving optimize load distribution especially in critical areas like chain-plates and keel attachments. The deck is balsa cored with solid FG in load bearing or hardware mounting.

Equipment: Highlights: New Mast (2022); Boom, fuller and Spinnaker- 100% new cabling and ropes above deck line Bow Thruster Freshwater Only Solar Panels (2024) Upgraded Electronics Bimini Top Full Canvas Enclosure (2019) Clear Window Panels (2025) Custom Winter Cover Frame Dimensions LOA: 43 ft 2 in Beam: 12 ft 11 in LWL: 38 ft 7 in Maximum Draft: 5 ft 7 in Displacement: 19797 lbs Ballast: 5836 lbs Headroom: 6 ft 5 in Dry Weight: 19797 lbs

Engine Engine Brand: Volvo Penta D2 Engine Type: Inboard Engine/Fuel Type: Diesel Drive Type: Direct Drive Engine Power: 55 HP Engine Hours: 745

Tanks Fresh Water Tanks x 2 : 154 Gallons Fuel Tanks: 53 Gallons Holding Tanks: 2 x 22 Gallons

Accommodations Number of cabins: 2 Number of heads: 2

Electronics Depth-Sounder Log-speedometer Navigation center Plotter (2023) Autopilot (2025) Compass GPS (2022) VHF AIF (2023) Radar AFI (2023) LED Lighting inside and out TV set Radio CD player

Sails Furling mainsail Furling genoa

Rigging Steering wheel Folding Wheel Electric winch

Inside Equipment Bow thruster Electric bilge pump Manual bilge pump Battery charger Air conditioning Heating Hot water Oven Marine head Refrigerator

Electrical Equipment Shore power inlet Solar Panels (2024)

Outside Equipment/Extras Custom Cockpit cushions Cockpit Table Swimming Ladder Davits - Custom Davits Lifts for outboard motor and dingy Anchor rope and chain over 200 ft New 2024

Covers Bimini Top - New 2019 Full Enclosure plus new Clear Window Panels 2025 Spray hood

Manufacturer Provided Description Designed by Groupe Finot, the Beneteau 423 offers more standard equipment at a value that is quite remarkable. A confident bluewater hull combined with extraordinary comfort, gorgeous interior woodwork, loads of volume and plenty of light will satisfy the most scrupulous of sailors whether it is for offshore sailing or cruising in the harbor.

Specs

Designer
Jean Marie Finot (Groupe Finot)
Builder
Beneteau
Associations
?
# Built
?
Hull
Monohull
Keel
Fin + Bulb
Rudder
Spade
Construction
FG

Dimensions

Length Overall
41 11 / 12.8 m
Waterline Length
38 6 / 11.8 m
Beam
12 0 / 3.7 m
Draft
4 11 / 1.5 m
Displacement
19,500 lb / 8,845 kg
Ballast
5,840 lb / 2,647 kg

Rig and Sails

Type
Sloop
Reported Sail Area
860′² / 79.9 m²
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Volvo
Model
?
HP
80
Fuel Type
Diesel
Fuel Capacity
53 gal / 201 l
Engine Hours
?

Accomodations

Water Capacity
154 gal / 583 l
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
10.8 kn
Classic: 8.32 kn

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

10.75 knots
Classic formula: 8.32 knots
Sail Area/Displacement
19.0
16-20: good 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.
18.99
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
29.9
<40: less stiff, less powerful

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

29.93
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
152.0
100-200: light

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
151.96
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
24.8
20-30: coastal cruiser

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
24.79
<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
1.9
<2.0: better suited for ocean passages

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
1.92
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Also called OCEANIS 423.
Shallow keel: 4.76’
Deep keel: 6.89’

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