Lapworth 24 — Information, Review, Specs

William Lapworth·1958·Continental Plastics Corp.
Approximate drawing

Hover a measurement to read its value

Hull type
Monohull · fin
Rig
Fractional Sloop
LOA
24' · 7.32 m
Displ.
4,350 lbs · 1,973 kg
First year
1958

The Lapworth 24, often referred to as the L24, represents an early and influential chapter in the transition from wood to fiberglass yacht construction. Designed by the legendary C. William "Bill" Lapworth and built by Continental Plastics Inc. in Costa Mesa, California, during the late 1950s and early 1960s, this vessel was part of the pioneering "Lseries" that preceded Lapworth’s worldfamous Cal boats. While the Cal 40 eventually defined his career, the L24 was an essential stepping stone, offering a stout, fullkeeled alternative to the lightdisplacement racers that would later dominate the West Coast. These boats were built at a time when fiberglass layup was experimental and conservative, resulting in exceptionally thick, heavy hulls that have survived decades of use.

Measurements

Dimensions 01

LOA
24 ft
LWL
20 ft
Beam
7.5 ft
Draft
4 ft
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Fiberglass
Hull type
Monohull
Keel type
Fin
Rudder
1× —
Ballast
1650 lbs (Lead)
Displacement
4350 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Fractional Sloop
P · main luff
30.5 ft
E · main foot
12 ft
I · fore ht.
24.5 ft
J · fore base
9 ft
Forestay (est)
26.1 ft
Sail area
293 sqft

Calculations 04

SA/D ratio
17.59
Ballast/Disp.
37.93
D/L ratio
242.75
Comfort ratio
21.65
Capsize screening
1.84
Hull speed
5.99 kn

Sailing Performance & Handling

The Lapworth 24 is a traditionalist’s pocket cruiser, characterized by its full keel and relatively heavy displacement-to-length ratio. Unlike Lapworth’s later "fin-keel-and-spade-rudder" breakthroughs, the L-24 tracks with remarkable persistence. On the helm, owners frequently report a balanced feel, provided the sail plan is properly trimmed. Because the rudder is attached to the trailing edge of the keel, the boat lacks the nimbleness of modern sportboats but offers a level of "sea-kindliness" rarely found in 24-footers. It handles choppy coastal waters with a rhythmic motion rather than the jarring bounce typical of lighter, flat-bottomed designs.

Performance in light air is modest, as the significant wetted surface of the full keel creates drag. However, as the breeze freshens, the L-24 comes into its own. It is a "stiff" boat, meaning it resists excessive heeling, a trait that inspires confidence in novice sailors and families. While it was once a competitive racer under older handicap rules, today it is primarily appreciated as a sturdy daysailer or a "pocket" coastal cruiser capable of handling the heavy afternoon winds of San Francisco Bay or the Catalina Channel.

Interior Comfort & Variations

For a vessel of its era and size, the Lapworth 24 provides a functional, albeit snug, interior. The cabin typically features a V-berth forward and two settee berths in the main salon. Continental Plastics utilized a basic but rugged interior finish, often employing mahogany or teak trim against the white fiberglass structural liners. Headroom is limited—typical for a 24-foot boat of this vintage—necessitating a "crouch" for taller sailors, though the layout is sufficient for weekend stays.

Continental Plastics also produced larger siblings in this design family, most notably the Lapworth 36 (L-36). While the L-24 focused on accessibility and ease of handling, the L-36 was a formidable ocean racer. Collectors often look for the L-24 specifically because it shares the aesthetic "DNA" of these larger, prestigious yachts. Some variations in the L-24 interior exist based on whether the original owner opted for a galley-forward or galley-aft configuration, though most survivors have been modified by subsequent owners to include modern portable stoves and updated electrical panels.

Known Issues & Buyer’s Checklist

Prospective buyers of a Lapworth 24 must account for the boat’s age, as many of these hulls are now over 60 years old.

  • Deck Delamination: Like many early fiberglass boats, the L-24 utilized a plywood or balsa core for the decks. Over decades, water can penetrate through improperly bedded stanchions or cleats, leading to "soft spots." A thorough "tap test" with a phenolic hammer is essential during inspection.
  • Chainplate Corrosion: The chainplates (the metal brackets that hold the standing rigging to the hull) are prone to crevice corrosion if they have not been re-bedded or replaced. Given the boat's age, these should be a primary safety concern.
  • Compression Post: Inspect the area where the mast steps onto the deck or the cabin top. Ensure there is no sagging or cracking, which would indicate a failure of the internal compression post or the structural beam underneath.
  • Osmotic Blistering: While Continental Plastics used heavy laminates, early resins were susceptible to "osmotic blisters" in the hull. While rarely structural, they can be a significant maintenance project.

Community & Resources

The legacy of Bill Lapworth is maintained by a dedicated community of West Coast sailors. While Continental Plastics is no longer in operation, technical information and historical context can often be found through the Cal 40 associations, which celebrate Lapworth’s broader portfolio. In Southern California, the boat remains a staple of vintage yacht regattas, and technical support is frequently exchanged through general "classic plastic" sailing forums where owners of early Pearson, Triton, and Columbia yachts share advice on maintaining mid-century fiberglass.

The Verdict

The Lapworth 24 is a rugged, handsome, and historically significant vessel that serves as an excellent entry point into the world of classic yacht ownership. It prioritizes stability and traditional aesthetics over raw speed and interior volume.

Pros:

  • Extremely robust hull construction capable of enduring heavy weather.
  • Timeless, classic lines designed by a master naval architect.
  • Predictable handling and excellent tracking thanks to the full keel.

Cons:

  • Limited interior headroom and storage for extended cruising.
  • Likely requires significant "refit" work due to the age of the standing rigging and deck hardware.
  • Heavy displacement makes it sluggish in light wind conditions.

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