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The following information and photographs are displayed as a service to anyone researching yacht types. HOWEVER THE PHOTOGRAPHS AND TEXT ARE COVERED BY COPYRIGHT, AND MAY NOT BE REPRODUCED WITHOUT THE PERMISSION OF YACHTSNET LTD. Details and photographs are normally based on one specific yacht, but could be a compilation. No reliance should be placed on other yachts of the same class being identical.  Where common variations exist, we have endeavoured to indicate this in these archive details. 

Colvic Watson 31' 6"

Brief details

Builder

Various builders, on Colvic GRP hull/deck mouldings

 

This Colvic Watson 31 is a traditional motor-sailer similar to a Fisher or Miller Fifer. These Colvic Watsons are motor sailers on the general hull lines of a North Sea fishing boat. They are heavy displacement and very seaworthy.

LOA

36' 0"

Sail area

approx 400 - 450 sq ft *

LWL

28' 3"

Rig

Sloop or ketch

Beam

10' 9"

Cabins

2 plus saloon

Draught

5' 2"

Berths

usually 6

Displacement

16,300 lbs *

Engine

Inboard diesel

Ballast

6,000 lbs *

BHP

typically 30 - 75

Keel type

Long keel

* Displacement, ballast and sail area are approximations, based on some known design data
plus estimations of changes to the rig through fitting a bowsprit to extend the foretriangle.

Sailplan

The Colvic Watson 31 was designed by the G. L. Watson design office, probably the oldest yacht design company in the world. G. L. Watson were from the 1880s to the 1960s consultants to the RNLI on lifeboat designs, and it is said that the Colvic Watson hulls are derived from lifeboat hull designs. They also bear a considerable resemblance to traditional North Sea fishing boats.

 

The Colvic Watson hulls, in sizes ranging from 19 to 35 ft were moulded by Ardleigh Laminated Plastics, which later became Colvic Craft, a very prolific builders of GRP yachts and workboats. They sold hulls both to amateur builders, and to boatyards, and also moulded hulls for other manufacturers under contract. Colvic GRP hulls are in general of good quality, and the Watson models are especially heavily built.

The Colvic Watson 31 illustrated was fitted out by her first owner over a three year period from 1978-1982. The design could be fitted with various options aft of the wheelhouse, this yacht having a raised aft deck over a double berth aft cabin. She also has a substantial bowsprit - not shown on the Colvic plan at left. The Colvic Watson design suggested 30 bhp engine power, many have much more than this though, this yacht has been re-engined with 65 bhp.

 

Like the expensive Fisher range of motorsailers, Colvic Watsons very often motor up wind with sail assistance, to both add some drive and to steady the motion. These boats will go to windward under sail alone, but it is not their primary purpose - that is all-weather seaworthiness with the helm warm and dry in the wheelhouse. The yacht shown here has both a large engine for pure motoring, plus a feathering prop to improve performance under sail.

Colvic Watson motor sailer for sale

Yachtsnet photographs 2017

Owners photo

Yachts seen here are no longer for sale - the data is online as a free information service for buyers researching boat types. THE PHOTOGRAPHS ARE COVERED BY COPYRIGHT, AND MAY NOT BE REPRODUCED WITHOUT THE PERMISSION OF YACHTSNET LTD.

Go to our brokerage section for boats currently for sale

Ashore December 2017

Ashore December 2017
Deck
Foredeck
Bow detail
Deck aft
Rig

Yachts seen here are no longer for sale - the data is online as a free information service for buyers researching boat types. THE PHOTOGRAPHS ARE COVERED BY COPYRIGHT, AND MAY NOT BE REPRODUCED WITHOUT THE PERMISSION OF YACHTSNET LTD.

Go to our brokerage section for boats currently for sale

 

Under way
Aft deck

Wheelhouse

Saloon forward
Forecabin

 

The forecabin has a single berth, with a hinge-up pilot berth above - the owner normally leaves this in place as seen. The heads (photo below) is to starboard.

Heads
Galley

The saloon has a spacious galley area to starboard, and to port a dinette-style
settee and table. The table lowers to convert this into a double berth.

Double berth with saloon table lowered

Saloon aft

Wheelhouse aft

At the aft end of the wheelhouse is a seat, and steps down to the aft cabin - photos below

Aft cabin
Aft cabin double berth
Aft cabin

Yachts seen here are no longer for sale - the data is online as a free information service for buyers researching boat types. THE PHOTOGRAPHS ARE COVERED BY COPYRIGHT, AND MAY NOT BE REPRODUCED WITHOUT THE PERMISSION OF YACHTSNET LTD.

Go to our brokerage section for boats currently for sale

Moored port

The yacht shown had a Perkins Sabre 65 hp diesel

Engine - Perkins Sabre 65 hp

These Colvic Watson 31s (this one actually about 36 ft overall with the bowsprit) give a reassuring feel of solidity. Because many, iof not most, were owner completed, interior layouts and fittings and rigs can vary considerably.

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