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Seller's Description

Fully restored Jim Brown-designed Searunner 25’ located in Seattle.

Its hard to imagine what it would be like to sail across an ocean aboard a 25-foot boat. And yet, thats exactly what some sailors have done on a Searunner 25.

These boats were designed to be tough and SAFE because they feature a cockpit squarely in the middle of the boat. This makes it harder for a crew member to fall off the vessel, from either accident or surging sea.

No expense was spared in this build using the highest marine quality materials.

Full down to the marine plywood and west systems restoration inside and out with 100s of photos. This boat has been under cover during the winter, freshwater moored and lightly used since the restoration that was finished in 2017.

This boat is designed to fold for transport on a seasonal basis folding/unfolding takes a full day with a couple of strong people. No trailer included

For more information and details, cut and paste: searunner25.com

Equipment: Specifications Hull Type: Center Cockpit Trimaran with SS A-Frame

Rigging Type: Cutter

LOA:25.00 ft / 7.62 m

LWL:23.08 ft / 7.03 m

S.A. (reported):332.00 ft / 30.84 m

Beam:16.58 ft / 5.05 m

Payload: 400lbs

Displacement:2,500.00 lb / 1,134 kg

Max Draft:4.50 ft / 1.37 m

Min Draft:1.33 ft / 0.41 m

Hull Construction: West Systems Epoxy / Bronze ring shank

Hull Material: Okoume marine plywood

Rudder and Centerboard Construction: Mahogany marine plywood

Interior Construction: Teak

First Built: 1968

Designer: Jim Brown

Accommodations Sleeps two (62 single bunks)

Dricore DuraDri Mattress Underlays

Nav-station with LED task light

USB and 110v outlets

Siroco II cabin fans

Sails and Rigging Sail Area: 274 projected

Main: 122

Fore Triangle: 152

Aluminum / 316 SS wire

Oversized head&back stays

Lasy-jacks

Sunbrell covers

Pro-Furl C290 furling systems for Jib and Stay Sails 2021

Mechanical Engine: 2017 Mercury 5hp sail-pro / with charging system

Hours: 200 est.

2024 Full-service, filters, tune-up & H20 pump

SS Prop guard

EZ Steer system (motor linked to rudder)

Remote controls in the cockpit

Tankage: 5 gal

Cruising speed: 5kts

Electronics & Navigation Garmin GPS Map 741XS MFD touchscreen

Garmin 18 HD radar

Garmin Wind GNX-20 GMI-20 G-Wind

Garmin AIS 800 (send/receive)

NMEA 2000 network

Standard Horizon GX2150 Matrix AIST VHF/DSC & remote mic

Sony Marine stereo/CD/Input jack with 4 Sony Marine speakers

Richie Venture SR-2 Bulkhead Compass

LED Navigation lights

LED Tri-Nav mast light switchable between upper and lower

Electrical 110v AC BlueSea Systems

Smart Plug with 50 30A power cord

Galvanic Isolator

50W articulating solar panel

Solar controller by DUO

MeTer battery monitoring with solar logging

12v LED interior lighting White/Red switchable

Perko Main Switch

BlueSea Systems Main Fuses

12v DC BlueSea Systems panels

2ea. 12v AGM Group-24 house batteries (158 AMP hours)

All marine-grade wire and connectors

Galley SS Sink

10g LDPE Fresh water tank

Whale foot pumps for fresh and raw water

Dometic EK1600 one-burner cooktop

Propane shut-off with Matrix Sniffer

Compost shoot

12v Compressor cooler with smart control by ACO Power

Head Dometic port-a-potty

Deck Equipment Harken and Lewmar blocks

Main traveler Lewmar

2 Self-tailing wenches primary: Rebuilt 2023

2 mast wenches

Wisker pole

Ground Tackle Rocna 10kg Galvanized Anchor

25 5/16 Chain

150 3-stran Nylon

Anchor-lift windlass with foot and cockpit controls

Custom anchor bridal with chafe protection

Additional Equipment 2 Rule bilge pumps with float s/w

Auto-helm wind-vane steering system

Radar reflectors X2

Lightning static defuser

MAGMA Maine Kettle BBQ

Spare parts

Tools

Fire Extinguishers

Coastguard required safety equipment

Galley supplies

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Specs

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

Dimensions

Length Overall
25 0 / 7.6 m
Waterline Length
?
Beam
16 0 / 4.9 m
Draft
4 0 / 1.2 m
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
2

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.

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