Southerly 480

2018
Designer
Stephen Jones
Builder
Northshore Yachts
Associations
?
# Built
?
Hull Type
Swing keel w/twin rudders
Construction
GRP

Dimensions

Length Overall
49 1 / 15 m
Waterline Length
42 9 / 13.1 m
Beam
14 7 / 4.5 m
Draft
3 3 / 1 m 10 2 / 3.1 m
Displacement
38,040 lbs / 17,256 kg
Ballast
13,490 lbs / 6,120 kg (Cast iron)
drawing

Rig and Sails

Type
Solent
Reported Sail Area
1,116.2 ft2 / 103.7 m2
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Mast Height
71 9 / 21.9 m
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Yanmar
Model
?
HP
80
Fuel Type
Diesel
Fuel Capacity
174 gal / 660 l

Accomodations

Water Capacity
129 gal / 488 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
8.77 knots
Sail Area/Displacement
15.79
under powered
Ballast/Displacement
35.47
less stiff, less powerful
Displacement/Length
216.47
moderate
Comfort Ratio
36.62
moderate bluewater cruising boat
Capsize Screening
1.74
better suited for ocean passages

Notes

Updated version of the 470.
Centerline skeg fitted to protect prop.


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