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Seller's Description

Halekai is a luxurious, semi-custom sailing yacht, designed by John G. Alden, Inc. and built in Portsmouth, RI to the rigorous standards of American Bureau of Shipping-A1 offshore certification. She’s a proven world cruiser, having earned the rare honor of completing a circumnavigation. Alden Yachts is a renowned top of the line yacht builder since 1909, known for rugged construction, superior joinery, high quality equipment and speed. She was customized by her current (and only) owners for self-reliant world cruising and outfitted specifically for their ten year circumnavigation. They refer to her as the ultimate cruising boat, based on their extensive blue water experience sailing aboard their two previous boats.

“Halekai” has been meticulously maintained and constantly upgraded to the highest standards. The dark green hull was awl-gripped and the diesel engine was rebuilt during a $50,000 refit in 2011/12. A complete electronic refit was done in 2019. The layout consists of a large chain locker/storage compartment with watertight door, forward guest stateroom with head/shower, main salon, nav station, walk-in workshop, walk-through galley, and aft master stateroom with head/shower.

Due to her partially enclosed center cockpit from which they can set and adjust the roller-furled sails, they “never needed foul weather gear in 120,000 miles of sailing.

YOU DON’T WANT TO MISS THIS BOAT! She’s the perfect world cruiser for a couple or family, and she has the experience and pedigree to prove it. Her stunning lines and graceful curves speak to her performance at sea, and the modifications that her owners have made to her have made her a self-contained “island” where you can be fully self sufficient.

Basically, all the work has been done for you to make this boat the ideal world cruiser. All you have to do is provision and set sail.

Note that third cabin has been customized into full workshop.

Equipment: Too much to list. Contact Melanie for full equipment list.

Commissioned, owned, and cruised by Seven Seas Cruising Association Commodores Built to circumnavigate with many customizations Hydraulic centerboard: 55 draft up, 13 down Custom 63 mast height for ICW bridges Minimal maintenance required on deck with stainless handrails and aluminum toerails. No teak deck! Aft deck crane for lifting and launching inflated dinghy with outboard attached All sails are roller furling Custom walk-in WELL STOCKED workshop with lathe, drill press, etc. Electric Sailrite sewing machine custom fitted into settee locker Custom hard dodger and cockpit roof with all-round enclosure panels Custom stern radar arch with wind generator Monitor windvane Watermaker Generator Washer/dryer combo Diving compressor with compressed air running throughout the boat Watertight bulkhead door leading to large forward storage locker and chain locker Varnished American cherry interior Gourmet galley with built-in carbonator (MAKE YOUR OWN CHAMPAGNE) Centerline queen in master stateroom One Raritan electric and one manual W&C toilet

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Specs

Designer
Niels Helleberg
Builder
Alden Yachts
Associations
?
# Built
3
Hull
Monohull
Keel
Stub + Centerboard
Rudder
?
Construction
FG

Dimensions

Length Overall
50 3 / 15.3 m
Waterline Length
164 0 / 50 m
Beam
42 7 / 13 m
Draft
5 6 / 1.7 m 0 0 / 0 m
Displacement
38,000 lb / 17,237 kg
Ballast
16,300 lb / 7,394 kg (Lead)

Rig and Sails

Type
Sloop
Reported Sail Area
1,092′² / 101.5 m²
Total Sail Area
1,092′² / 101.5 m²
Mainsail
Sail Area
515′² / 47.9 m²
P
51 6 / 15.7 m
E
20 0 / 6.1 m
Air Draft
?
Foresail
Sail Area
577′² / 53.6 m²
I
59 9 / 18.2 m
J
19 3 / 5.9 m
Forestay Length
62 9 / 19.2 m

Auxilary Power

Make
Westerbeke
Model
?
HP
70
Fuel Type
Diesel
Fuel Capacity
150 gal / 568 l
Engine Hours
?

Accomodations

Water Capacity
170 gal / 644 l
Holding Tank Capacity
?
Headroom
?
Cabins
3

Calculations

Hull Speed
8.3 kn
Classic: 8.16 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

8.26 knots
Classic formula: 8.16 knots
Sail Area/Displacement
15.5
<16: under powered

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.
15.46
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
42.9
>40: stiffer, more 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

42.9
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
332.9
275-350: heavy

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
332.93
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
44.4
40-50: heavy bluewater 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
44.41
<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
1.6
<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
1.6
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Alden design #1180x. (ALDEN 50/52/54). Of this series, the ALDEN 50 was the first boat planned and the last built.
Not to be confused with another ALDEN 50 built by Cheoy Lee, a much earlier design.
See ALDEN 54 (1985).

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

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