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Wavelength 24
Designer: Paul Lindenberg  ·  Builder: W. D. Schock Corp.  ·  First built: 1982
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About the Wavelength 24

Compact, capable, and designed with the weekend sailor in mind, the Wavelength 24 is a small keelboat that appeals to those looking for an accessible entry point into keel boat sailing without sacrificing the satisfaction of genuine on-the-water performance. Built for coastal and inland waters, this boat suits sailors who want a manageable vessel that can handle day sails and short overnight passages with confidence. While detailed specifications for the Wavelength 24 are limited in available records, the boat carries a reputation as a practical and approachable design, well-suited to sailors transitioning from dinghies or seeking a low-maintenance cruiser-racer for club sailing and relaxed coastal exploration. Its modest size makes it easy to handle short-handed, and the fixed keel provides stability that builds confidence in newer sailors while still rewarding those with more experience. For buyers researching budget-conscious options in the small keelboat category, the Wavelength 24 represents a sensible choice. Prospective owners are encouraged to inspect individual examples carefully, as build quality and condition can vary across older hulls in this class.

Core Dimensions
LOA (Length Overall) 24.00 ft / 7.32 m
LWL (Waterline Length) 20.33 ft / 6.20 m
Beam 9.00 ft / 2.74 m
Max Draft 4.50 ft / 1.37 m
Displacement 2,500.00 lb / 1,134 kg
Ballast 1,100.00 lb / 499 kg
Sail Area (Reported) 288.00 ft² / 26.76 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Paul Lindenberg
Builder W. D. Schock Corp.
First Built 1982
Last Built 1990
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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
 162
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
 25.08
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
 9.66
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
 2.66
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. 6.04
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
 4.77
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. 653.77
Rig Dimensions
I (Foretriangle Height) 31.25
J (Foretriangle Base) 9.5
P (Mainsail Luff) 27.33
E (Mainsail Foot) 10.25
SA Fore 148.44
SA Main 140.07
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