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Seller's Description

This is a excellent example of Boston Whaler’s classic 5.2 Harpoon, manufactured in 1979. It boasts BW’s foam sandwich construction, a planeing hull, mahogany seats & trim, spacious cockpit, wide beam, stable behavior, and is self-bailing. The bailers were replaced 3-4 years ago. It has new (2016) spars & standing rigging and the mahogany woodwork has been recently refinished. It has a stainless steel boom crutch and space to hold an ice chest. It is set up for racing with hiking straps, spinnaker hardware & pole, & racing compass. It comes with five sails (original main w/battens, new main w/o battens, original jib, new storm jib, & new(ish) spinnaker), plus a 2 HP Honda OB motor. I purchased the boat in 2003 and have always dry stored it w/a full cover. The original cuddy was removed to make more room in the cockpit, and can be easily reinstalled. The hull is in excellent shape. The centerboard, because of swelling, has had to be worked on so it pivots cleanly, although it sometimes still requires a little help. In the 17 years I’ve owned the boat I’ve not sailed it more than a dozen times a year, & some years much less. The OB motor has probably less than 50 hours on it and starts easily & runs smoothly. The galvanized trailer is new in 2020 & has a spare tire. The boat can be viewed on the North shore of Lake Pontchartrain in Mandeville, LA.

Equipment: 2 HP Honda OB motor; 2020 McClain galvanized trailer; 5 sails; hiking straps, spinnaker hardware & pole, & racing compass; original cuddy; full cover.

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Specs

Designer
C&C Design
Builder
Boston Whaler
Associations
?
# Built
1700
Hull
Monohull Dinghy
Keel
Centerboard
Rudder
?
Construction
FG

Dimensions

Length Overall
16 11 / 5.2 m
Waterline Length
14 11 / 4.6 m
Beam
7 6 / 2.3 m
Draft
0 3 / 0.1 m 3 9 / 1.2 m
Displacement
560 lb / 256 kg
Ballast
?

Rig and Sails

Type
Sloop
Reported Sail Area
162′² / 15.1 m²
Total Sail Area
162′² / 15.1 m²
Mainsail
Sail Area
108′² / 10 m²
P
21 3 / 6.5 m
E
10 2 / 3.1 m
Air Draft
?
Foresail
Sail Area
54′² / 5 m²
I
15 5 / 4.7 m
J
6 11 / 2.1 m
Forestay Length
16 11 / 5.2 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
0

Calculations

Hull Speed
8.4 kn
Classic: 5.19 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

8.36 knots
Classic formula: 5.19 knots
Sail Area/Displacement
38.0
>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.
37.95
<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
74.8
<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
74.75
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
3.8
<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
3.79
<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
3.6
>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
3.64
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

An open cockpit version was also available without the cuddy/cabin.

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

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