• 1 / 12
  • 2 / 12
  • 3 / 12
  • 4 / 12
  • 5 / 12
  • 6 / 12
  • 7 / 12
  • 8 / 12
  • 9 / 12
  • 10 / 12
  • 11 / 12
  • 12 / 12

Seller's Description

The Island Packet 31 is a cutter rig, long keel cruising boat. Excellent stability and high comfort rating, very large interior living space for a 31ft boat.

With many recent upgrades and new parts this island packet is ready to sail and ready to live aboard.

For additional basic information: https://bluewaterboats.org/island-packet-31 . https://sailboatdata.com/sailboat/island-packet-31 .

Deck and Hull Equipment

Mainsail, Jib and Staysail. New Running rigging (Main & Jib Halyard, Main sheets, jib sheets, staysail sheet).

Custom Bimini Shade. 2022 bottom paint. Fenders, docklines, life jackets, fire extinguishers.

Rebedded all toerail hardware 2022. New Dyneema lifelines 2022. ReSealed mast 2022. New Nav lights, foredeck lights.

Mechanical Equipment:

New Rule automatic electric bildge pump (2022).

New Whale Gusher manual bildge pump (2022).

New hot water tank installed 2021 (electric and engine heat).

110V shore power and 12V systems (Shore power cable included).

2 Solar power cabin vent fans.

Equipment: Yanmar 3GM30F diesel engine (1000 hours), recent overhaul.

Engine Control Panel replaced 2021 (including new Tach and buzzer). Engine Oil Pressure light and sensor replaced 2021. Engine Coolant Temperature sensor and light replaced 2021. Fuel Level gauge and sender replaced 2022.

Raw water pump rebuild 2021. Perko Raw water strainer rebuild 2021. Replaces Raw water hoses from seacock back (2021).

Crankshaft pulley replaced 2021. Raw water pump belt replaced 2021. Alternator and Cooling water pump belt and pulleys replaced 2021.

Coolant fill cap replaced 2021. Raw water, coolant and fresh water hoses replaced 2021. Heat exchanged cleaned and new seals 2021. Engine thermostat replaced 2021. Coolant flushed and replaced 2021. Exhaust Mixing elbow replaced 2021. Exhaust Hose replaced 2021.

Engine Diesel Filter replaced 2021. Engine Air filter replaced 2021. 500 series Racor diesel filter and fuel water separator (new filter 2021). Facet FEP04SV Fuel pump (new 2021). Engine Oil and Filter replaced every 100 hours.

2x 5 gal diesel containers.

Galley Equipment:

Galley with double sink, 2 burner stove and oven. Large icebox and plenty of dry storage.

Accommodations:

Forward stateroom with large vee berth with Hatch, two ports, locker and two reading lights.

Large aft quarter berth (2 person) adjacent to nav station.

Bathroom with Sink, Shower, and head with rebuilt pump and soft close seat. Mirror, light, portlight and solar powered vent fan.

Saloon with one L shaped setee one straight setee and drop down table. Hatch and 5 portlights for ventilation.

All cushions reupholstered 2022.

Varnished teak and holly sole 2021.

Secure and spacious cockpit with new cushions (2021).

110V shore power and 12V systems (Shore power cable included). Navigation Systems:

Autohelm 3000 autopilot. VHF radio. AM/FM radio, bluetooth (smart phone compatible) and New speakers (2022). Two 12V batteries (2021).

Advertisement

Specs

Designers
?
Builders
?
Associations
?
# Built
?
Hull
Monohull
Keel
?
Rudder
?
Construction
?

Dimensions

Length Overall
31 0 / 9.5 m
Waterline Length
?
Beam
10 11 / 3.4 m
Draft
?
Displacement
?
Ballast
?

Rig and Sails

Type
?
Reported Sail Area
?
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
?

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

?
Classic formula: ?
Sail Area/Displacement
?

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.
?
<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
?

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
?
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
?

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
?
<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
?

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
?
<2: better suited for ocean passages
>2: better suited for coastal cruising

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

View on SailboatListings.com

Advertisement

Embed

Embed

Embed this page on your own website by copying and pasting this code.

Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.

We will occasionally send you relevant updates. You can opt out or contact us any time.

Subscribe

Get occassional updates about new features or featured sailboats.
You can opt out or contact us any time.
Measurements:

Made with ♥ by the founders of Refit Guide
©2022 Sea Time Tech, LLC

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.