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1999 Beneteau 311 Oceanis Clipper

Listed
Expired
$40,000 USD

Seller's Description

Excellently maintained lifting keel Beneteau 311. Second owner. Draws 2 feet 6 inches in skinny water and 7 feet 1 inch in deeper waters. Twin rudders. All lines led back to the cockpit for easy singlehanded sailing to include lines for the asymmetric spinnaker. New spinnaker, new jib, new turtle bag, full, plush cockpit cushions. Interior in great shape, cushions, shades, sole refinished. Too many improvements to list. A complete maintenance log is available for review.

I single had in coastal waters and it is an easy boat to sail.

The price is very reasonable and firm.

Equipment: Pressure water, propane stove/oven, hot water heater, asymmetric spinnaker, turtle bag, bimini, dodger, anemometer, depth and autopilot replaced in 2017. In mast main furls like a dream. Addition low profile bilge pump. Solar panel and controller. Three batteries, 1 engine 2 house. Low engine hours, well maintained. Composting head, new. Refrigerator, VHF with remote in cockpit. LED lighting.

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Specs

Designer
Jean Marie Finot (Groupe Finot)
Builder
Beneteau
Associations
?
# Built
1042
Hull
Monohull
Keel
?
Rudder
Twin
Construction
FG

Dimensions

Length Overall
31′ 11″ / 9.8 m
Waterline Length
28′ 8″ / 8.7 m
Beam
10′ 5″ / 3.2 m
Draft
2′ 5″ / 0.8 m
Displacement
7,720 lb / 3,500 kg
Ballast
2,430 lb / 1,100 kg

Rig and Sails

Type
Sloop
Reported Sail Area
539′² / 50.1 m²
Total Sail Area
470′² / 43.7 m²
Mainsail
Sail Area
241′² / 22.4 m²
P
36′ 7″ / 11.2 m
E
13′ 2″ / 4 m
Air Draft
?
Foresail
Sail Area
229′² / 21.3 m²
I
40′ 4″ / 12.3 m
J
11′ 4″ / 3.5 m
Forestay Length
41′ 11″ / 12.8 m

Auxilary Power

Make
Yanmar
Model
?
HP
18
Fuel Type
Diesel
Fuel Capacity
18 gal / 68 l
Engine Hours
?

Accomodations

Water Capacity
52 gal / 197 l
Holding Tank Capacity
?
Headroom
?
Cabins
2

Calculations

Hull Speed
9.4 kn
Classic: 7.18 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

9.39 knots
Classic formula: 7.18 knots
Sail Area/Displacement
22.1
>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.
22.08
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
31.4
<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

31.43
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
146.1
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
146.1
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
17.4
<20: lightweight racing boat

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
17.37
<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
2.1
>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
2.13
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

P with roller furling mast = 36.29 ft/11.06m
The FIGARO SOLO, FIRST 310, FIRST 31.7, STARDUST 311, and OCEANIS 300 are all based on this same hull design.
OPTIONAL LIFTING KEEL W/TWIN RUDDERS: (not shown on drawing)
This model features twin rudders and a wing/plate at the bottom of the keel that keeps the boat upright when beaching.
(OCEANIS 311 CLIPPER designates a version with more standard equipment.)

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

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