Humphreys Yacht Design

southerly 420 1

southerly 420 2

southerly 420 3

Fiberglass

<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

southerly-420-1_1585914759

Factory

Northshore

Euro

<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	Northshore
Maker website	https://www.northshore.co.uk
Model	Southerly 420
First built hull	2010
Price	459,000 €
Boat type	Sail
Category	Cruiser Boats Center Cockpit Boats
Hull type	Monohull
Hull material	Monohull

Name	Value
Top speed	13.02 kmh
Mast height	18.78 m
Length overall	12.86 m
Length at waterline	11.16 m
Beam overall	4.02 m
Draft maximum	2.47 m
Displacement	11,800.2 kg
Ballast weight	3,529.85 kg
Helm	1 wheel
Rudder	2 spade rudders
Cockpit	Central cockpit

Name	Value
Naval architect
Name/Studio	Humphreys Yacht Design
Website	http://www.humphreysdesign.com

Name	Value
Mast	61.6
Spars	Mast and boom in Aluminum
Standing rigging	1x19 strand wire
Number of spreaders	2
Spreaders angle	Swept-back
Upwind sail area	73.02 sq.m
Downwind sail area	112.04 sq.m
Mainsail A	463.00
Mainsail B	323.00

Name	Value
Engine A
Power	53 HP
Type	Inboard engine ; Diesel
Engine B

2010 Northshore Southerly 420

Boat Overview

Type

Maker

Hull type

Hull Material

Fiberglass

Category

Boat length (LOA)

12.86 m

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Overview

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Specs

Performance & Ratios

Name	Value
Sail Area to Displacement (SA/D)	8.44
Upwind SA to Displacement	14.33
Downwind SA to Displacement	21.99
Hull Displacement Speed	8.11
Displacement to Length (D/L)	236.88
Ballast to Displacement (B/D)	29.91
Capsize Screening Formula (CSF)	1.78