Edward Dubois

Composite_Material

<p>Monohull boats are vessels with just one hull, as the name itself suggests. They can be monohull <a href="https://theboatdb.com/boats/type/sail">sailboats</a> or <a href="https://theboatdb.com/boats/type/power">powerboats</a>, which means they can be powered by an engine or by the wind. In addition, monohull boats can have a high level of luxury on board and can therefore be referred to as monohull yachts. At TheBoatDB you can look into monohull boats and explore their features. In addition, you can filter your search through monohull sailboat manufacturers and explore all models available on our site. Compare all models on our website from the comfort of your home.</p>

Monohull

sealord-39-1_1585750809

Factory

Westerly

Euro

Symmetric spinnaker

<p>The category of sailboats includes both <a href="https://theboatdb.com/boats/category/daysailer">sailing yachts</a> which are luxurious and charming vessels used for recreational purposes, as well as <a href="https://theboatdb.com/boats/category/cruiserracer">racing sailboats</a> that are used for sports. Some have a single hull while others can have two or three. Compare different types of sailboats through sailing boat specs on TheBoatDB and find out the best one for you. Choose according to boat specs, and explore sailboats that vary from very large vessels, appropriate for ocean cruising, to small ones used to roam the shores.</p>

Name	Value
Maker	Westerly
Model	Sealord 39 Ketch
First built hull	1983
Version	Ketch
Boat type	Sail
Category	Cruiser Boats Center Cockpit Boats
Hull type	Monohull
Hull material	Monohull

Name	Value
Top speed	12.3 kmh
Mast height	14.75 m
Length overall	11.77 m
Length at waterline	9.94 m
Beam overall	4.02 m
Draft maximum	1.71 m
Displacement	8,391.91 kg
Ballast weight	3,629.19 kg
Helm	1 wheel
Rudder	1 spade rudder
Cockpit	Central cockpit

Name	Value
Naval architect
Name/Studio	Edward Dubois

Name	Value
Mast	48.4
Spars	Mast and boom in Aluminum
Standing rigging	1x19 strand wire continuous
Number of spreaders	1
Spreaders angle	0 °
Upwind sail area	90.49 sq.m
Downwind sail area	166.58 sq.m
Mainsail A	274.00
Spinnaker A	1411.00

Name	Value
Engine A
Type	Inboard engine ; Diesel
Engine B

1983 Westerly Sealord 39 Ketch

Boat Overview

Type

Maker

Hull type

Hull Material

Composite_Material

Category

Boat length (LOA)

11.77 m

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Overview

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Specs

Performance & Ratios

Name	Value
Sail Area to Displacement (SA/D)	0.05
Upwind SA to Displacement	22.29
Downwind SA to Displacement	41.03
Hull Displacement Speed	0.05
Displacement to Length (D/L)	7.65
Ballast to Displacement (B/D)	0.43
Capsize Screening Formula (CSF)	2