Cal 36 Sailboat Review, Specs, and Listings

C. William Lapworth·1966·Jensen Marine
Cal 36 drawingBuilder drawing
Hull Type
Monohull · fin
Rig
Masthead Sloop
LOA
35.5' · 10.82 m
Disp.
11,200 lbs · 5,080 kg
First year
1966

The Cal 36 is one of C. William Lapworth’s enduring takes on the performance cruiser. This 35foot6inch fiberglass monohull entered production at Jensen Marine in 1966. It later carried the Bangor Punta ownership banner before the Cal brand wound down in 1989.

Measurements

Dimensions 01

Length Overall
35.5 ft
Length on deck
—
Waterline Length
27 ft
Beam
10.33 ft
Draft
5.7 ft
Maximum Headroom
—
Air Draft
—

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Fin
Rudder
1× Spade
Ballast
4,500 lbs (Lead)
Displacement
11,200 lbs
Water Capacity
80 gal
Fuel Capacity
30 gal

Rig & sails 03

Rigging Type
Masthead Sloop
Mainsail luff
36.3 ft
Mainsail foot
16.3 ft
Foretriangle height
42 ft
Foretriangle base
14.5 ft
Forestay Length (estimated)
44.43 ft
Sail Area
600 sqft

Calculations 04

Sail Area to Displacement Ratio
19.17
Ballast to Displacement Ratio
40.18
Displacement to Length Ratio
254.03
Comfort Ratio
26.12
Capsize Screening Ratio
1.85
Hull Speed
6.96 kn

Lapworth conceived the hull for racing, but also made it suitable for coastal passages and moderate offshore hops. Decades after the molds were retired, the class remains active in both racing and cruising.

Design and Construction

The Cal 36 is a fiberglass monohull with a 27-foot waterline, 10-foot-4-inch beam, and 11,200-pound displacement. Its fin keel has a maximum draft of 5 feet 7 inches.

These figures put the boat firmly in the performance-oriented camp: a relatively light, beamy hull with a long-ish waterline for its overall length. The design blends racing capabilities with cruising comfort rather than sacrificing one for the other.

Jensen Marine built the standard Cal 36 in the United States. After Bangor Punta Corp. acquired the yard in 1965, the same builder also produced the Cal Cruising 36. Offered from 1968 to 1970, this shallow-draft variant was intended for sailors who needed less appendage below. Production of the standard design ran from 1966 onward, within a marque that ceased building boats in 1989.

Rig and Sail Plan

The Cal 36 carries a masthead sloop rig. Its dimensions are:

  • I: 42 feet
  • J: 14 feet 6 inches
  • P: 36 feet 6 inches
  • E: 16 feet 3 inches

Together, these measurements give the foretriangle and mainsail the racing-derived proportions associated with Lapworth’s work. Class data quotes 600 square feet of sail area. Set on the tall rig, that area helps explain the lively performance noted by period observers.

A boat with this rig and displacement responds quickly to sail trim. Lapworth’s influence is clear in a hull explicitly known for its performance-oriented design from its first season afloat.

Accommodations and Intended Use

Many racer-cruisers of the mid-1960s leaned heavily toward the racecourse. The Cal 36, by contrast, was presented as a dual-purpose boat and has earned a reputation as a popular choice for coastal and moderate blue water sailing.

The boat carries 80 gallons of water and 30 gallons of gasoline. That capacity supports weekends and longer hops, though it doesn’t amount to true long-range cruising provision. Auxiliary power comes from a single 30-horsepower Universal Atomic 4 gasoline engine, appropriate to the boat’s displacement.

Within the 35-foot-6-inch LOA, the cabin was arranged to let a couple or small family cruise without accepting the stripped-out interior of a pure racing boat.

Verdict

The Cal 36 has aged into a credible used classic. It’s a Lapworth-designed fiberglass sloop that remains quick under sail, competent on moderate offshore routes, and well represented in club-racing and cruising fleets.

For buyers who need less draft, the Cal Cruising 36 provides an alternative built from 1968 to 1970. Neither version is a heavy-displacement passagemaker, however, and the Atomic 4 places the boat firmly in the gasoline-auxiliary camp of its era.

Pros

  • Performance-oriented Lapworth hull that balances racing and cruising
  • Active one-design and cruising fleet decades after production ended
  • Shallow-draft variant available for shoal-water sailors

Cons

  • Gasoline Atomic 4 auxiliary rather than a modern diesel
  • Moderate tankage limits true long-range independence

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