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Freedom 21 Slp
Designer: Garry Hoyt  ·  Builder: Tillotson Pearson Inc,  ·  First built: 1982
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About the Freedom 21 Slp

Freedom Yachts built the Freedom 21 Slp as part of their innovative unstayed rig sailboat line that challenged conventional sailing wisdom during the late 20th century. This compact vessel represents the company's commitment to bringing their signature cat ketch configuration to smaller boat owners seeking simplified sailing without the complexity of traditional standing rigging. The absence of stays, shrouds, and spreaders creates a uniquely clean deck layout while reducing maintenance requirements significantly. The cat ketch rig, featuring two freestanding carbon fiber spars, allows for excellent sail balance and easy single-handed operation. This configuration proves particularly forgiving for newer sailors while offering experienced mariners a refreshing alternative to conventional rigs. At this size, the Freedom 21 Slp suits coastal cruising and day sailing activities exceptionally well. The boat's shallow draft and responsive handling make it ideal for exploring protected waters, small harbors, and shallow anchorages that larger vessels cannot access. While not designed for extended offshore passages, this model delivers the Freedom sailing experience in a more accessible, trailerable package perfect for weekend adventures and learning the unique characteristics of unstayed rig sailing.

Core Dimensions
LOA (Length Overall) 21.67 ft / 6.61 m
LWL (Waterline Length) 17.67 ft / 5.39 m
Beam 8.00 ft / 2.44 m
Max Draft 3.80 ft / 1.16 m
Displacement 1,800.00 lb / 816 kg
Ballast 500.00 lb / 227 kg
Sail Area (Reported) 200.00 ft² / 18.58 m²
Design & Construction
Hull Type Fin w/transom hung rudder
Rigging Type Frac. Sloop (Free standing)
Construction FG
Designer Garry Hoyt
Builder Tillotson Pearson Inc,
First Built 1982
Last Built 1997
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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
227
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
21.67
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
9.24
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
2.63
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 5.63
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
3.82
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. 505.09
Rig Dimensions
I (Foretriangle Height) 19.3
J (Foretriangle Base) 5.25
P (Mainsail Luff) 24.42
E (Mainsail Foot) 10.75
SPL/TPS 7.95
SA Fore 50.66
SA Main 131.26
How It Compares

vs. Cs 22, Freedom 21 Slp Sd, Oday 22

This boat Similar boats
Dimensions
LOA
Freedom 21 Slp ★
21.7 ft
Cs 22
21.6 ft
Freedom 21 Slp Sd
21.7 ft
Oday 22
21.7 ft
LWL
Freedom 21 Slp ★
17.7 ft
Cs 22
17.5 ft
Freedom 21 Slp Sd
17.5 ft
Oday 22
18.9 ft
Beam
Freedom 21 Slp ★
8.0 ft
Cs 22
8.0 ft
Freedom 21 Slp Sd
8.0 ft
Oday 22
7.2 ft
Displacement
Freedom 21 Slp ★
1 lbs
Cs 22
2 lbs
Freedom 21 Slp Sd
2 lbs
Oday 22
2 lbs
Ballast
Freedom 21 Slp ★
500 lbs
Cs 22
1 lbs
Freedom 21 Slp Sd
Oday 22
800 lbs
Performance
PHRF Rating (lower = faster)
Freedom 21 Slp ★
227 s/nm
Cs 22
249 s/nm
Freedom 21 Slp Sd
Oday 22
285 s/nm
Ballast / Disp (higher = stiffer)
Freedom 21 Slp ★
Cs 22
50.0 %
Freedom 21 Slp Sd
Oday 22
36.7 %
Displacement / Length (lower = lighter)
Freedom 21 Slp ★
Cs 22
183
Freedom 21 Slp Sd
170
Oday 22
143
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