Cal 34 Sailboat Review, Specs, and Listings

C. William Lapworth·1968 – 1975·~347 hulls·Jensen Marine
Cal 34 drawingBuilder drawing
Hull Type
Monohull · fin
Rig
Masthead Sloop
LOA
33.24' · 10.13 m
Disp.
9,500 lbs · 4,309 kg
First year
1968

The Cal 34 is a 33footodd racercruiser that Jensen Marine built from 1966 until 1979 in three model designations — the Cal 34, Cal 234, and Cal 334 — with the hull form itself staying basically unchanged across that span even as rig, deck mold, and interior were reworked enough to warrant the separate designations anchor. Conceived from the start as a true racercruiser, she carries a large trapezoidal fin keel and a spade rudder, and at just over 33 feet overall she packs the interior volume of boats three or more feet longer. C. William Lapworth, who had been designing for Jensen since the Cal 24 of 1958, laid her out as a California coastal performer with a lightdisplacement hull that draws stiffness from the bond between furniture and shell rather than from excess laminate.

Measurements

Dimensions 01

Length Overall
33.24 ft
Length on deck
Waterline Length
26 ft
Beam
10 ft
Draft
5 ft
Maximum Headroom
6.25 ft
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Fin
Rudder
1× Spade
Ballast
3,750 lbs (Lead)
Displacement
9,500 lbs
Water Capacity
23 gal
Fuel Capacity
25 gal

Rig & sails 03

Rigging Type
Masthead Sloop
Mainsail luff
33.5 ft
Mainsail foot
14 ft
Foretriangle height
39 ft
Foretriangle base
13.75 ft
Forestay Length (estimated)
41.35 ft
Sail Area
503 sqft

Calculations 04

Sail Area to Displacement Ratio
17.94
Ballast to Displacement Ratio
39.47
Displacement to Length Ratio
241.3
Comfort Ratio
24.27
Capsize Screening Ratio
1.89
Hull Speed
6.83 kn

Design and Construction

The Cal 34 is a relatively unsophisticated, hand laid-up hull, and older Cal boats in general are not heavily built — their light displacement precludes excess material, with furniture and bulkhead tabbing kept relatively light anchor. What stiffness the hull has comes largely from the bonding of interior furniture to the shell. Owners nevertheless consider the boat above average in strength of hull, deck, and rig, and on the whole the design is free of structural defects that would trace to poor workmanship or choice of materials. She is internally ballasted with lead, and the keel is a fiberglass molding around that casting — a detail that matters at survey, because a molding that rings hollow when tapped can mean a loose ballast from a hard grounding.

Rig and Handling

The original Cal 34 rig was a low-aspect masthead sloop with a mainsail of late CCA Rule proportions: a 14-foot foot and 33.5-foot hoist on a long boom that overhangs the cockpit awkwardly, with the traveler just forward of the cockpit's aft end anchor. That arrangement squanders cockpit space and makes locker access a nuisance, while the tiller occupies the entire forward half of the cockpit. The 2-34 and 3-34 got a rig just over two feet taller and a boom three feet shorter, dropping the main by 40 square feet and lifting its aspect ratio from about 2.5:1 to 3.25:1; the center of effort moves forward, giving inherently better balance anchor. With the taller rig the PHRF comes in six seconds per mile quicker, though the boat still rates slower than modern same-size designs and the C&C 34 beats the Cal 3-34 by roughly 25 seconds per mile. Owners say she is about even with peers upwind and somewhat quicker downwind, but needs a good breeze to get moving — and short-rig boats with the mainsail foot cut down for balance are likely underpowered in light air.

Accommodations

The original Cal 34 and 2-34 show two quarterberths aft, galley to starboard and dinette to port, while the later 3-34 adopts a conventional aft-galley-to-port layout with quarterberth and chart table to starboard and a saloon settee to starboard opposite the dinette anchor. Both share V-berths forward and a head between main and forward cabins, though the head detail differs. The early varnished mahogany plywood interior is lighter and brighter than the later oiled-teak "cave" look, but demands more upkeep and is harder to restore if salt-water-blackened mahogany has deteriorated; the later 3-34 adds creature comforts including standard hot and cold pressure water and a shower, plus water capacity raised from 26 to 60 gallons. Headroom on centerline runs 6'2" in the main cabin.

Known Issues

A number of owners report the main bulkhead tending to delaminate from leaking chainplates, and Practical Sailor notes that since this is potentially serious any boat should be surveyed for leakage there; several also cite chainplate failure from metal fatigue anchor. Deck gelcoat crazing is very common, the distinctive blue sheerstrake is usually badly faded unless painted, and there are no backing plates under stanchions — a omission that drives localized deck crazing. Older boats used gate valves instead of seacocks on through-hulls and should have those replaced, and aluminum-framed cabin ports leak. Wear in the fiberglass tube serving as the rudder stock bearing leaves anchor some boats with unsettled steering, and the big cockpit holds enough water that the two small stock scuppers are inadequate — owners recommend larger ones. Blistering has been only a minor problem on older Cals.

Refits and Ownership

Many original-rig owners have shortened the mainsail foot to improve balance, and one of the most common modifications to earlier boats is fitting wheel steering, which on the longer-boom versions requires relocating the mainsheet but frees the cockpit dramatically anchor. Wheel steering is standard on the 3-34 built from 1976 on. The engine is an Atomic Four gas unit under the cockpit, driven through a V-drive that some owners report troubling; diesels appeared mid-1970s (Farymann, Westerbeke, Perkins among them) but Farymann parts are effectively unobtainable, and many owners argue the old Atomic 4 — still running strong at fifteen years in reported cases — may be the most desirable powerplant. Access is fair to poor in the aft-galley layout, fair to good in the double-quarterberth version, and many owners note a strong pull to starboard under power.

The Verdict

The Cal 34 is a thoughtfully evolved racer-cruiser whose three generations let a buyer choose between a brighter early interior and a more modern, better-balanced later rig with real cruising amenities. She is light, roomy for her length, and structurally sound in the ways that count, but the chainplate-to-bulkhead leakage path and a list of minor deck and through-hull weaknesses demand a careful survey and some planned upgrades.

Pros

  • Three model generations with a taller, better-balanced rig on later boats
  • Roomy interior for a 33-foot hull with 6'2" centerline headroom
  • Owners rate hull, deck, and rig strength above average; few material defects
  • Atomic 4 powerplant widely reported durable and well-supported

Cons

  • Main bulkhead delamination from chainplate leaks is a serious structural risk
  • Original short rig overhangs cockpit and wastes space; underpowered if mainsail cut down
  • Common deck issues: crazing, faded sheerstrake, no stanchion backing plates, leaking ports
  • Gate valves on older through-hulls, weak stock scuppers, occasional sloppy rudder

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