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Rosborough 46 Pilothouse Ketch

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Boat REF# 136705
Sold / Unavailable
Length 46'0"
Year 1986
Construction Wood
Underwater profile Long Keel
Sleeping berths 4
Engine 1 x diesel 135hp, Perkins 354 ci (1986)
Lying Olympia, WA


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Extra Details

Designer Rosborough of Nova Scotia
Builder Jim Omundson Lake Oswego, OR
Lying Olympia, WA
Fuel capacity 600.0 USG Total - 2 Tanks
Water capacity 240.0 USG Total - 2 Tanks
Holding tank capacity 60.0 USG Total - 2 Tanks
Last survey 27/09/2012


Engine 1 x diesel 135hp
Engine make and model Perkins 354 ci (1986)
Engine Hours engine1:   2574
Engine Cooled Indirect
Steering wheel
Drive shaft
Prop(s) Bronze 3 blade
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Fuel consumption (approx) 1.2 USG /hour At Cruising Speed
Cruising speed (approx) 6 knots

The engine room houses the engine, five batteries, storage shelves, tanks, and pumps. A bench against each side of the interior allows easy access to all aspects of the engine for maintenance –– and offers comfort! There are two holding tanks. A 30 gallon gray water tank holds water from the sinks and shower drainage. The gallon black water tank holds drainage from the forward head and liquid from the aft head –– the composting aft head is plumbed for liquid. The solid waste composts with peat and needs refreshing only every two -four months for a two-person live-aboard or annually for recreational use. There are two 150 gallon fuel tanks and two 120 gallon water tanks.450-amp hour, 12 volt system using four golf cart batteries with IOTA DLS55 three stage battery charger. Separate start battery (2005) with echo charger. Link 20 battery monitoring system. Alternator and regulator replaced 2006. 400 watt inverter with 2 30 amp shore power cords. Prop is 24 inch 3 blade bronze on 1-3/4" stainless shaft. Spare bronze prop.


Length 46'0"
LWL 35'3"
Beam 13'3"
Draft Max 5'11"
Displacement 42,799.9lbs
Headroom 6'3"
Storage On marina


Ketch rigged Unknown Wood spars (1986) with Stainless Steel standing rigging (1986)


Reefing mainsail - Other (unknown year) Fully Battened,
Headsail - Hank On (unknown year)
Other sails Staysail (1986)
Mizzen (1986)

Port Townsend Shipbuilding Co-op rebuilt the bowsprit in 2010. Spars are all spruce. All were pulled, examined and proved to be strong at that time. The entire transom of this vessel was refurbished with some replacement of hull planks done by the co-op. Bottom paint two coats applied 10/09. This upcoming spring plans are to pull the boat and repaint the bottom. Port Townsend Shipbuilding Co-op examined this boat very carefully and repaired all findings as the owners were going to take the boat to Alaska. During this four month round trip from the Puget Sound to Haines, Alaska the vessel performed flawlessly. Carol Hasse Sails in Port Townsend stitched and made repairs as needed to all sails prior to the Alaska trip. All but the mizzen were considered to be in good condition. The mizzen was determined to be in fair condition.

Electrical Systems

12 volt, 5 batteries charged by: engine, shore power


Save 10% on graphic design and boat graphics
Construction Wood
Underwater profile Long Keel
Finish Paint finish

Total LOA 60' from bowsprit to boomkin. 46 foot is on deck measurement. Holding tanks are one grey water 30 gallon and one black water at 35 gallon.

1-1/4 inch mahogany planking on oak frames, fastened with stainless steel fasteners. Full keel with long bowsprit and boomkin stern. Two helm stations, one inside and one on aft deck with hydraulic steering. Masts are spruce, and were pulled in 2007 and found to be in good condition with a small repair made where the radar antenna attaches. Bowsprit rebuilt 2010. Transom with windows refurbished in 2007. Paint and varnish are fresh.

This Rosborough Privateer is a stunning vessel and shows as well maintained. The design is by Jim Rosborough of Nova Scotia. As far as is known, this was the only such boat built outside of Nova Scotia and is one of only three on the west coast now. Built in 1986 by the late Jim Omondson, a shipwright in Lake Oswego, Oregon who was a perfectionist –– the craftsmanship and design of are top quality throughout. The hull design features a long, straight keel with skeg-hung rudder and a well-protected 3-blade bronze propeller.

The Rosborough has a large aft deck with wide side decks for easy access to the foredeck. The pilothouse has doors port and starboard. The foredeck also has ample deck space for kayaks and seating. There are also kayak chocks mounted on the pilothouse roof for storage. Overall, the exterior appears well kept.

In October 2012 a survey was done as a result of a conditional purchase offer. The findings of this survey indicated that the boat was in overall above average condition and valued higher than her current asking price. Contact the listing broker for more information regarding this survey.


Total # of berths 4
No. of double berths 3
No. of single berths 1
Cabin(s) 3
Sink 2
Shower 1
Heads 2 heads (Manual)
Stove tick
Broiler tick
Oven tick
Sink tick
Fridge tick
Freezer tick
Carpet tick
Drapes tick
Cabin heating tick
Pressurised water system tick
Hot water system tick
Raw water wash tick
Non-Smokers tick

One enters the boat through doors on either side of the central pilothouse and three steps down. The pilothouse includes the galley with a gimballed stove/oven fueled by propane, a Norcold refrigerator with freezer, and a double stainless sink. An L-shaped dinette converts to a double berth. The interior navigation station includes a bench, chart rack, chart table and night reading light. Behind the interior pilothouse stairs is access to two large storage spaces extending under the exterior walk-arounds and are the length of the pilothouse.

Enter the salon through a companionway and 3 steps down. An elevated daybed with transom and porthole views pulls out to an extra-large double berth. Mahogany end tables/storage boxes grace each end of the daybed. A semi-circle settee seats six comfortably and eight if necessary. A half circle table mounts for the settee but has stowage allowing for open space. A hanging locker plus shelving and a set of drawers are starboard of the companionway. On the port side is an enclosed head with composting toilet, sink, cupboards, mirror and a hot-water-on-demand system. The salon has a radio/CD and speaker system.

The forward cabin includes a large v-berth, a large starboard-side pullman berth, built in drawers and shelving with an open hanging locker, and six cupboards with cane doors. The forward head includes a marine, manual toilet, a sink, a hot-water shower, drawers and a cupboard. Headroom is 6’10”. The forward cabin is accessed through a companionway from the pilothouse with four stairs. The stairs hinge and open into access to the very large engine room.

The headroom, spacious interior and light distinguish this Rosborough from most sailboats. Headroom is 6’5” in the pilothouse and salon and 6’10” in the bunk/v-berth cabin. Ceiling hatches fore and aft and windows surrounding the salon and pilothouse allow natural light and view from the interior. Ceiling hatches above the pilot house doors slide open for air, light, and room. Most of the upholstery and all the mattresses (now latex) and floors (parquet and carpet) were replaced in 2007.The salon has a wall-mount Sigmar diesel heater. Under way, a hot water forced air heater heats fore and aft cabins.

3 burner propane Stove

Nav Equipment

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Compass tick
Speed tick
Wind tick
Radar tick
VHF DSC radio tick
GPS tick
Chart plotter tick
Stereo tick
Clock tick
Barometer tick
Navigation lights tick
Fish Finder tick
Depth sounder tick
Radar Reflector tick

Lowrance HD55 integrated Chart Plotter/GPS/Speed/Depth/Fishfinder,
Raymarine Anemometer ST60 Wind, Uniden UN525 VHF, Furuno Radar, Lowrance depth sounder and Airmar speed distance log. Airmar B60 bronze depth transducer.

Deck Gear

10% discount on marine canvas covers!
Sail cover tick
Bimini tick
Rode tick
Fenders tick
Boathook tick
Swim Ladder tick
Instrument Covers tick

4 halyard winches
3 sheet winches
Manual Unknown Bronze 555 windlass
2 anchors
200'0" of chain
600'0" of rode
Two anchors are mounted on the bowsprit. One CQR is 60 lb. with 200 ft. of 3/8”chain plus 600 ft. of 3/4” rode; the other is a 35 lb. CQR with 100 ft. of 3/8” chain and 400 ft. of 3/4” rode. Bronze manual 555 windlass. The anchor chain locker is divided into two sections so that the rode from each anchor is separated and has open access from the forward cabin below. Sampson post was examined by PTSB Co-op and found to be in good condition. Bulwarks are about 14” in height -- the cap is teak with bronze haws pipes for lines. Non skid painted on all decks in good condition. Paint all over is in good to excellent condition. All deck hardware is bronze except standing rigging which is stainless. It all looks to be in well maintained condition. Exterior wood is all in recent varnished condition and professionally done. Lots of room on deck for kayaks or other toys. There are two mahogany storage lockers/benches on back deck. All canvas on deck was replaced in 2010.

Safety Equipment

Life jackets tick
Searchlight tick
Safety harnesses tick
Horn tick
Swim ladder tick
Emergency steering tick

2 bilge pumps (0 manual / 2 electric)

Safety Harnesses (2), Life Sling, all USCG requirements current and aboard.

Broker's Comments

If you've ever considered living aboard a sailboat you have to look at this one. First impressions of this Rosborough Privateer 46 Pilothouse Ketch will have you thinking, “I can go anywhere on this boat and live comfortably while doing so", as her owners did to Alaska in 2007. Built of high quality materials and professionally serviced by Port Townsend Ship Building Co-op she is ready to go anywhere your dreams take you. Much of the paint and all the varnish are fresh. Most of the upholstery and carpet is only a couple of years old. She has a roomy, light and comfortable interior and the open and spacious decks make for delightful cruising. She surveyed in "Above Average Condition" just this last fall and was valued considerably higher than her asking price. Make an offer! Now is the time to get ready for boating season! New bottom paint job March 2012.

This Rosborough 46 Pilothouse Ketch has been personally photographed and viewed by Gary Buck of Boatshed Seattle. Click here for contact details.
The particulars herein are intended to give a fair description of the vessel but are not guaranteed as accurate. They shall not form part of any offer or contract for the sale of the vessel. The prospective purchaser is recommended to independently check the particulars. The vendor is not selling in the course of a business unless otherwise stated. Personal property is excluded from the sale of the vessel unless specifically included in the listing specifications above or in a Purchase Contract. Personal property may be equipment or gear not permanently attached to the vessel including but not limited to: artwork, entertainment equipment, fishing equipment, TV receivers, recreational equipment, kayaks, tools, and personal appliances. Photos that may incidentally depict owners' personal property do not convey that such items are included in the sale of the vessel unless specifically listed herein.

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