Southerly 42
Sailboat specifications
The Southerly 42 is a 42’2” (12.86m) cruising sailboat designed by Humphreys Yacht Design (United Kingdom). She is built since 2020 by Discovery Yachts Group (United Kingdom).
The Southerly 42 has also been marketed as Southerly 430.
The Southerly 42 has also been marketed as Southerly 430.
Southerly 42's main features
- Model
- Southerly 42
- Hull type
- Monohull
- Category
- Offshore deck saloon cruising sailboat
- Sailboat builder
- Sailboat designer
- Sailboat range
- Country
- United Kingdom
- Construction
- GRP (glass reinforced polyester):
Single skin bottom, sandwich sides and deck: fiberglass vinylester vacuum bagged - First built hull
- 2020
- Last built hull
- Still in production
- Appendages
- Lifting keel : swing keel
- Helm
- Twin helm wheels
- Rudder
- Twin spade rudders
- Unsinkable
- No
- Trailerable
- No
- EC design categoryiThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)
A: Wind < force 9, Waves < 10m
B: Wind < force 8, Waves < 8m
C: Wind < force 6, Waves < 4m
D: Wind < force 4, Waves < 0,5m - A
- Standard public price ex. VAT (indicative only)
- About440 000 €(2020)
Southerly 42's main dimensions
- Hull length
- 42’ 2”12.86 m
- Waterline length
- 36’ 6”11.11 m
- Beam (width)
- 13’ 2”4.03 m
- Draft
- 8’ 11”2.72 m
- Draft when appendages up
- 2’ 10”0.84 m
- Mast height from DWL
- 61’ 6”18.73 m
- Light displacement (MLC)
- 25003 lb11341 kg
- Ballast weight
- 8091 lb3670 kg
Southerly 42's rig and sails
- Upwind sail area
- 792 ft²73.62 m²
- Mainsail area
- 468 ft²43.44 m²
- Jib area
- 325 ft²30.18 m²
- Rigging type
- Sloop Marconi fractional
- Mast configuration
- Deck stepped mast
- Rotating spars
- No
- Number of levels of spreaders
- 2
- Spreaders angle
- Swept-back
- Spars construction
- Aluminum spars
- Standing rigging
- 1x19 strand wire
Southerly 42's performances
- Upwind sail area to displacementiThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.
The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.
Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat. - 157 ft²/T14.58 m²/T
- Displacement-length ratio (DLR)iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).
The DLR can be used to compare the relative mass of different sailboats no matter what their length:
a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat. - 234
- Ballast ratioiThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.
The higher the ballast ratio is, the greater is the stability. - 32 %
- Critical hull speediAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".
The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34. - 8.09 knots
Southerly 42's auxiliary engine
- Engine(s)
- 1 inboard engine
- Engine(s) power
- 57 HP
- Fuel type
- Diesel
- Fuel tank capacity
- 79.3 gal300 liters
Southerly 42's accommodations and layout
- Cockpit
- Open aft cockpit
- Cabin(s) (min./max.)
- 2 / 3
- Berth(s) (min./max.)
- 4 / 8
- Head(s)
- 2
- Freshwater tank capacity
- 71.3 gal270 liters
Discovery Yachts Group Southerly 42 - - 1/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 sailplan - - 2/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 layout - - 3/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 layout - - 4/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 sailing - - 5/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 sailing - - 6/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 sailing - - 7/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 sailing - - 8/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 interior and accommodations - - 9/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 interior and accommodations - - 10/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 interior and accommodations - - 11/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 interior and accommodations - - 12/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 interior and accommodations - - 13/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 interior and accommodations - - 14/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
Discovery Yachts Group Southerly 42 detail - - 15/15
Picture extracted from the commercial documentation © Discovery Yachts Group
Picture extracted from the commercial documentation © Discovery Yachts Group
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