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Seller's Description

1989 Island Packet 38 cutter rigged sloop with in-boom furling on main. New AB dinghy 18Hp Tohatsu, cockpit enclosure, 5KW Northern Lights Generator, new chain-plates 2015. New top-sides gelcoat 2019. New radar, chartplotter, VHF.

Standard layout: owners cabin forward with private head, Pullman style bed and generous storage. Rear quarterberth. Central main cabin.

Equipment: SAILS & SAIL HANDLING All sails inspected and updated for 2016. All sail handling from security of cockpit. Mainsail: Shaeffer in-boom roller furling with 5 batten main made in 2012 by Mack Sails. Harken electric winch in cabin. Genoa: 120 percent on Harken Roller Furler made in 2008 by Scott Morgan of Cocoa, FL Staysail: 2011 cutter sail on Shaeffer roller furler. Genaker: Lightweight sail in sock.

ENGINE and GENERATOR 1989 Yanmar 3000hrs recently serviced, references by request. 3 bladed non-folding propeller.

Northern Lights Diesel Generator, 5KW. 3500 Hrs. 110/220V. Located in aft lazarette.

One 57G aluminum Diesel tank mid-ship below deck. Original equipment.

ELECTRONICS AND SYSTEM Raymarine Axiom Pro 9” chartplotter, ST60 instruments, radar. Navigation Pod in cockpit immediately in from of wheel. Raymarine Class B AIS.

ICOM 802 SSB and Pactor Model with backstay antenna. Standard Horizon VHF with remote commander microphone.

Solar panels mounted on arch. Two 180 watt units with PPT controller.

Batteries: 450AH total from 4 Trojan batteries. One Group 29 house battery. Balmar smart regulator. Battery Monitor.

DECK GEAR & CANVAS Full cockpit enclosure and rail covers made 2011.

DINGHY: 2015 AB Alu Rib with 15HP, cover new 2017. 2018 Tohatsu 18hp, 2001 Yamaha 15hp.


Refrigerator and freezer with separate Danfoss compressors.

Princess 3-burner stove and oven. Original from 1989, perfectly functional. Twin 10# propane tanks in outside vented locker with solenoid.

WATER and WATERMAKER: 157 Gallon Fresh Water Aluminum tank with pressure delivery to heads, galley and aft shower (cold only). 11 gallon hot water tank (2011).

Watermaker: From Echo Tek installed 2013. 20 GPH. Runs off 110V.

AIR CONDTIONING: Reverse cycle Air with outputs in quarterberth, main cabin and owners cabin.

ANCHOR & WINDLASS 20Kg Rochna anchor with 200 feet of chain. 50# Bruce, 50 feet of chain, 200 feet of rode. Lewmar vertical windlass (2012) with rear control and bow foot swiches plus interior relay.

LED lighting of interior and cockpit. Swim platform.

SANITATION: Two heads, one in bow other near main cabin. Bow has 2016 Jabsco hand pump toilet with direct discharge or to holding tank. Aft head, electric Lavac unit with direct discharge or to holding tank. Holding tank emptied via deck fitting or macerator. 19 gallon capacity plastic tank from 2008.


Robert K. Johnson
Island Packet Yachts
Island Packet Yacht Owners
# Built


Length Overall
37 11 / 11.6 m
Waterline Length
33 0 / 10.1 m
12 6 / 3.8 m
4 11 / 1.5 m
21,500 lb / 9,752 kg
10,000 lb / 4,536 kg

Rig and Sails

Reported Sail Area
870′² / 80.8 m²
Total Sail Area
735′² / 68.2 m²
Sail Area
320′² / 29.7 m²
39 11 / 12.2 m
16 0 / 4.9 m
Air Draft
Sail Area
415′² / 38.5 m²
46 5 / 14.2 m
17 9 / 5.4 m
Forestay Length
49 9 / 15.2 m

Auxilary Power

Fuel Type
Fuel Capacity
57 gal / 216 l
Engine Hours


Water Capacity
187 gal / 708 l
Holding Tank Capacity


Hull Speed
8.4 kn
Classic: 7.7 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.


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

8.35 knots
Classic formula: 7.7 knots
Sail Area/Displacement
16-20: good 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.


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.
<16: under powered
16-20: good performance
>20: high performance
>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.


Ballast / Displacement * 100

<40: less stiff, less powerful
>40: stiffer, more powerful
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.


D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
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.


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
<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
<2.0: 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.


CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
<2: better suited for ocean passages
>2: better suited for coastal cruising


Draft for CB version: 4.0’ BU, 7.58’ BD.

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