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Seller's Description

Classic daysailer! Comes with trailer (no papers for trailer) and full set of sails. Trailer tires brand new. Well maintained wooden gunnels. Mounting for outboard.

Due to tree limb damage the mast must be replaced. Centerboard up/down line needs replacing - new one provided, just needs installation

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Specs

Designer
Uffa Fox
Builders
Precision Boat Works
Mariner Construções Náuticas Ltd.
O'Day Corp.
Cape Cod Shipbuilding
Association
Daysailer Class (O'Day)
# Built
10000
Hull
Monohull Dinghy
Keel
Centerboard
Rudder
?
Construction
FG

Dimensions

Length Overall
16 11 / 5.2 m
Waterline Length
15 5 / 4.7 m
Beam
6 0 / 1.8 m
Draft
0 7 / 0.2 m ?
Displacement
580 lb / 261 kg
Ballast
?

Rig and Sails

Type
Sloop
Reported Sail Area
145′² / 13.5 m²
Total Sail Area
144′² / 13.4 m²
Mainsail
Sail Area
102′² / 9.5 m²
P
20 6 / 6.3 m
E
10 0 / 3.1 m
Air Draft
?
Foresail
Sail Area
41′² / 3.9 m²
I
13 9 / 4.2 m
J
6 0 / 1.8 m
Forestay Length
15 0 / 4.6 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
8.7 kn
Classic: 5.27 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

8.7 knots
Classic formula: 5.27 knots
Sail Area/Displacement
33.5
>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.
33.53
<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
69.2
<100: Ultralight

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
69.17
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
4.8
<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
4.83
<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
3.0
>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
3.01
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

The DAY SAILER was a collaboration of Uffa Fox & George O’Day. Fox designed the hull, but the original cuddy was designed & molded by O’Day & his company. The DAY SAILER has been built by several builders and with a number of changes along the way but the basic hull design has remained the same. The DAY SAILER II was introduced in 1971 as an update to the original Day Sailer and featured positive foam flotation, two cockpit inspection/bailing ports and a self-bailing cockpit. A MKIII version was built from 1985-1990 (which is not considered class legal for one-design racing).
The DAY SAILER is still being built by Cape Cod Shipbuilding Company with improved self-rescuing features.

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

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