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Seller's Description

This 1988 Irwin is a one-of-a-kind cruising boat with wonderful live-aboard accommodations. You will be thrilled to call the Irwin home whether it’s full-time or just for a weekend get-away.

If you are an avid sailor, this Irwin 54 will bring you plenty of great memories as you explore the waters.

A veteran of New Port Ensenada and SF to Hawaii races.

Beautiful galley below equipped with a large refrigerator/freezer, ice maker, microwave and stovetop.

The Irwin has a Sun Pure water maker and full-size washer and dryer.

There is an 8 KW generator, the owners have added 1500 watts of solar, plus (2) 2500 watt inverters.

Sails: Are in good condition, you have a (newer) main, storm sail, Yankee Genoa, stay sail, storm tri with track, full batten on furling boom with electric winch, a heavy duty head sail, asymmetrical spinnaker, chute with furling sleeve, genoa has electric furling, full sun cover.

Electric winches and Cutter rigged.

Equipped with (2) auto pilots, folding dual prop, 16-mile radar, sonar, fuel filter, 2000 GPH bilge pump and high water alarm. Garmin chart plotter, McMurdo EPIRP, Jensen CD player, ICom 550 VHF with cockpit remote mic, 2 linked battery monitors. The life-lines are stainless steel.

Nice Bose stereo system and LED TV when time to rest and enjoy the water.

20-gallon hot water heater electric or engine heated, electric heads.

Stainless Steel Arch with dingy davits and swivel out board crane.

(2) 16k heat pumps and one 5000 BTU air conditioner for the master stateroom (runs on batteries).

Has 400 feet of chain on Bruce anchor with electric windlass.

Additional: Dripless gland on prop shaft 50 amp dock cord with 30 and 15 amp adapterrs. 20 and 30 gallon holding tanks. Winslow 8 person life raft included

Has offshore medical kit, Ditch bag, Halon automatic engine room fire extinguisher, 1 point battery watering system.

Individual heads have separate shower/tub area.

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Specs

Designer
Ted Irwin
Builder
Irwin Yachts
Association
Irwin Yacht Owners
# Built
?
Hull
Monohull
Keel
Stub + Centerboard
Rudder
?
Construction
FG

Dimensions

Length Overall
54 0 / 16.5 m
Waterline Length
43 11 / 13.4 m
Beam
15 3 / 4.7 m
Draft
5 6 / 1.7 m
Displacement
46,000 lb / 20,865 kg
Ballast
16,000 lb / 7,257 kg

Rig and Sails

Type
Ketch
Reported Sail Area
1,255′² / 116.6 m²
Total Sail Area
1,075′² / 99.8 m²
Mainsail
Sail Area
477′² / 44.3 m²
P
50 1 / 15.3 m
E
18 11 / 5.8 m
Air Draft
62 11 / 19.2 m
Foresail
Sail Area
598′² / 55.6 m²
I
56 5 / 17.2 m
J
21 1 / 6.5 m
Forestay Length
60 4 / 18.4 m
Mizzen
PY
29 11 / 9.1 m
EY
12 0 / 3.7 m

Auxilary Power

Make
Yanmar
Model
?
HP
77
Fuel Type
Diesel
Fuel Capacity
385 gal / 1,457 l
Engine Hours
?

Accomodations

Water Capacity
400 gal / 1,514 l
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
10.0 kn
Classic: 8.89 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

9.95 knots
Classic formula: 8.89 knots
Sail Area/Displacement
15.6
<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.
15.64
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
34.8
<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

34.78
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
241.1
200-275: moderate

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
241.14
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
39.6
30-40: moderate bluewater cruising 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
39.61
<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
1.7
<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
1.71
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Cutter or Ketch.

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

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