Masthead Sloop · Fin With Rudder On Skeg · 1970–1978
A Sparkman & Stephens masthead sloop offering versatile interior configurations and a choice of standard or tall rigs
Designed by Sparkman & Stephens.
LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin With Rudder On Skeg
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
LivelyComfort 24Sea-kindly
CoastalCapsize 1.94Bluewater
LightD/L 274Heavy
EasygoingSA/D 17.0Powered-up
TenderBallast 41%Stiff
A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.
The record
Full specifications
The complete reference set — tap any figure to switch between metric and imperial.
Dimensions
Weights
Ballast / displacement
41.1%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.0
Displacement / length
273.9
Comfort ratio
24.3
Capsize screening
1.94
Hull speed
6.6 kn
Pounds / inch immersion
866
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1970–1978
Units built
606
Designer
Sparkman, Stephens
Builder
Tartan Marine
Boats like this, on the water
Nobody has filmed this one — but these are close.
Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.
Cal Boats 309.14 mSame hull familyNear-identical lengthOffered with an optional tall rig, this masthead sloop served as the predecessor to the 2-30 series
Maxi Yachts 959.50 mSame hull family0.4 m longerA 9.5-metre masthead sloop produced for a decade, featuring a skeg-hung rudder for predictable coastal handling
Granada Yachts 319.39 mSame hull family0.3 m longerA masthead sloop with a spade rudder and nearly 46% ballast ratio, designed for stability in a 31-foot hull
Catalina Yachts 309.12 mSame hull familyNear-identical lengthOne of the most successful production yachts in history, with over 6,000 hulls built during a 32-year run
Hunter Marine 319.55 mSame hull family0.4 m longerA Cortland Steck design featuring a B&R rig and a fin keel, built for coastal cruising between 1983 and 1987