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2008 Beneteau Cyclades 50.5

Price Reduced
$195,500 USD

Seller's Description

(PLEASE NOTE: This boat is in PUERTO RICO)

$165.500 OBO

5 Cabins PLUS crew cabin. 6 total!

We have done ALL kinds of things to upgrade her, make her more seaworthy and more seakindly. Check out other Cyclades… THEN come and see ours. You will see the difference!

We bought her and did many things in preparation for going to the S. Pacific. But due to unforeseen circumstances, Covid being one of them, we won’t be leaving. We have kept her during this time in Puerto Rico with the exception of an occasional short trip. (We and the boat were not on the island during Hurricane Maria.)

Also please note that we are currently living onboard the boat, so you will have to see it with all our things onboard.

Our boat has 4 double cabins, 1 pilot berth w/two bunks, and 1 crew cabin w/partial head.

Gas stove with oven.

Spacious galley with 2 Fridges, one with freezer compartment and another very effective cold plate fridge.

Three full heads w/showers and sumps.

Sails are like new!

This boat has MASSIVE storage space.

Yanmar 120hp engine, very clean.

110 gallon diesel capacity. 250 gallon water capacity.

10’4” rigid fiberglass dinghy and 4.5hp Yamaha outboard.

Equipment: List of equipment and work done, much within last 36 months:

Entire boat rewired for 110v. Boat can still be used with original 220v system. Dual voltage.

New spinnaker made by Doyle Sails. Not used once. New spinnaker sock and ATN Tracker.

New standing rigging. New blocks. (17 total)

New and oversized forestay chain plate installed.

New steering cables.

New Marelon thru-hulls and valves (13 total)

New rudder post bushings

Anchor windlass completely rebuilt. Spare windlass motor on board.

Spare set Yanmar engine hoses. Spare engine starter motor on board.

New oversized Rocna anchor. New oversized Fortress anchor. New Claw anchor.

New 3/8” high-test G4 chain (200’) Second bow roller installed.

Dinghy chocks installed.

Security cameras installed.

Wireless access point installed and external high gain antenna. External TV antenna with booster installed.

Dual 12v and 110v systems installed for fresh water pump and fridges. (So you don’t have to run your pumps and fridges on battery power and shorten their life expectancy while dockside!)

New hot water heater element and thermostat. New shower heads and hoses. New sump pumps installed.

Raymarine wind direction, depth, auto pilot control panels, wind direction transducer and cable replaced.

Reupholstered sofa. Window tint on all hatches. Blinds installed on hatches.

Plastimo life raft (inspection long overdue, sorry)

Numerous changes or enhancements to galley and heads. Sump pumps replaced (3) New bilge pump. Four 4D batteries (4) and one group 27 starting battery.

New oversized charge controller for solar panels. New 2500w inverter. (and a new spare one!)

New 3 coats International bottom paint Aug. 2022 zincs and cutlass bearing.

NEW large double membrane 40gph water maker installed this year.

She comes with 8 life jackets, harnesses, tethers, 8 new fenders, 2 used ones, a lot of cordage spares and goodies!

Please note that it’s time to replace bimini, dodger and stack pack. We have the Sunbrella and Strataglass as well as a Sailrite sewing machine which we will throw in!


# Built
Fin + Bulb


Length Overall
50 5 / 15.4 m
Waterline Length
43 2 / 13.2 m
14 11 / 4.6 m
6 11 / 2.1 m
27,950 lb / 12,680 kg
8,710 lb / 3,950 kg (Iron)

Rig and Sails

Reported Sail Area
1,067′² / 99.1 m²
Total Sail Area
1,067′² / 99.1 m²
Sail Area
532′² / 49.4 m²
54 11 / 16.7 m
19 4 / 5.9 m
Air Draft
68 6 / 20.9 m
Sail Area
535′² / 49.7 m²
59 10 / 18.3 m
17 10 / 5.5 m
Forestay Length
62 5 / 19 m

Auxilary Power

Fuel Type
Fuel Capacity
106 gal / 401 l
Engine Hours


Water Capacity
259 gal / 980 l
Holding Tank Capacity


Hull Speed
11.3 kn
Classic: 8.81 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.


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

11.33 knots
Classic formula: 8.81 knots
Sail Area/Displacement
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.


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.
<16: under powered
16-20: good performance
>20: high performance
<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.


Ballast / Displacement * 100

<40: less stiff, less powerful
>40: stiffer, more powerful
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.


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
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.


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
>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.


CSV = Beam ÷ ³√(D / 64)

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


The same as CYCLADES 50.4 with slightly different interior.
Mostly sold to the charter trade.

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