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Ocean Craft 21
 ·  First built: 1975
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About the Ocean Craft 21

A compact and approachable small sailboat, the Ocean Craft 21 represents an entry point into the world of sailing that appeals to beginners and budget-conscious sailors alike. Designed with simplicity in mind, this trailerable vessel is well suited to inshore and coastal sailing, making it a practical choice for those looking to explore sheltered bays, lakes, and calm coastal waters without the complexity of a larger cruising yacht. While detailed specifications for the Ocean Craft 21 are limited, the boat's modest size suggests it was built with ease of handling and affordability as primary goals. Trailerable boats of this class typically offer straightforward rigging, manageable sail plans, and the convenience of dry storage — all attractive qualities for sailors who value flexibility and low running costs. The Ocean Craft 21 is likely to appeal most to day sailors and those taking their first steps into keelboat ownership. Prospective buyers should seek out existing owners or class associations for firsthand accounts of the boat's performance and quirks, as community knowledge can be invaluable when researching a vessel with limited documented specifications.

Core Dimensions
LOA (Length Overall) 21.00 ft / 6.40 m
LWL (Waterline Length) 19.75 ft / 6.02 m
Beam 7.00 ft / 2.13 m
Displacement 2,800.00 lb / 1,270 kg
Design & Construction
Hull Type Fin Keel
Rigging Type Masthead Sloop
Construction FG
First Built 1975
Owner Reviews

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Known Issues & What to Watch For

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Performance Ratios
PHRF Rating PHRF (Performance Handicap Racing Fleet) is a national racing handicap measured in seconds per nautical mile. Lower values indicate faster boats. Ratings are sourced from US Sailing's national database (median across 60+ regional fleets).
Under 0 — Ultralight racer0–90 — Performance racer90–150 — Cruiser/racer150–210 — Typical cruiserOver 210 — Heavy/slow cruiser
255
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
162.26
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 2.96 pounds/inch
Rig Dimensions
I (Foretriangle Height) 17.52
J (Foretriangle Base) 6.80 ft / 2.07 m
P (Mainsail Luff) 217.00 ft² / 20.16 m²
E (Mainsail Foot) 162.26
How It Compares

vs. Hunter 212, Irwin 21 Free Spirit, Macgregor 21

This boat Similar boats
Dimensions
LOA
Ocean Craft 21 ★
21.0 ft
Hunter 212
21.0 ft
Irwin 21 Free Spirit
21.0 ft
Macgregor 21
21.0 ft
LWL
Ocean Craft 21 ★
19.8 ft
Hunter 212
18.0 ft
Irwin 21 Free Spirit
16.5 ft
Macgregor 21
18.5 ft
Beam
Ocean Craft 21 ★
7.0 ft
Hunter 212
9.2 ft
Irwin 21 Free Spirit
8.0 ft
Macgregor 21
6.8 ft
Displacement
Ocean Craft 21 ★
2 lbs
Hunter 212
1 lbs
Irwin 21 Free Spirit
1 lbs
Macgregor 21
1 lbs
Ballast
Ocean Craft 21 ★
Hunter 212
140 lbs
Irwin 21 Free Spirit
750 lbs
Macgregor 21
400 lbs
Sail Area
Ocean Craft 21 ★
Hunter 212
202 sq ft
Irwin 21 Free Spirit
202 sq ft
Macgregor 21
Performance
PHRF Rating (lower = faster)
Ocean Craft 21 ★
255 s/nm
Hunter 212
216 s/nm
Irwin 21 Free Spirit
215 s/nm
Macgregor 21
263 s/nm
SA / Displacement (higher = more powerful)
Ocean Craft 21 ★
Hunter 212
21.9
Irwin 21 Free Spirit
21.9
Macgregor 21
Ballast / Disp (higher = stiffer)
Ocean Craft 21 ★
Hunter 212
7.8 %
Irwin 21 Free Spirit
41.7 %
Macgregor 21
34.0 %
Comfort Ratio (higher = more comfortable offshore)
Ocean Craft 21 ★
Hunter 212
7.7
Irwin 21 Free Spirit
9.8
Macgregor 21
Capsize Screening (lower = safer)
Ocean Craft 21 ★
Hunter 212
3.02
Irwin 21 Free Spirit
2.63
Macgregor 21
Displacement / Length (lower = lighter)
Ocean Craft 21 ★
162
Hunter 212
137
Irwin 21 Free Spirit
178
Macgregor 21
82
Hull Speed
Ocean Craft 21 ★
Hunter 212
5.7 kts
Irwin 21 Free Spirit
5.4 kts
Macgregor 21
Speed Number (higher = faster)
Ocean Craft 21 ★
Hunter 212
4.3
Irwin 21 Free Spirit
3.6
Macgregor 21
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