The Cal 34-III, also known as the Cal 3-34, is a masthead sloop designed by the prolific naval architect C. William "Bill" Lapworth and built by Jensen Marine/Cal Boats. Launched in 1977, this iteration of the popular Cal 34 line was specifically marketed as a more capable blue water cruiser, building upon the established reputation of its predecessors for solid construction and comfortable sailing. Production of the Cal 34-III continued until 1979, with 193 units built, leaving a lasting legacy as a well-regarded cruising yacht.
Cal 34-Iii Information, Review, Specs
- Make
- CAL
- Model
- 34-Iii
- Number Built
- 193
- Production Year(s)
- 1977 - 1979
The Cal 34-III was introduced in 1977 as an evolution of the earlier Cal 34 models, continuing production until 1979. Designed by C. William Lapworth, a naval architect renowned for his focus on safety and creating strong, fast boats without compromising on structural integrity, the Cal 34-III embodies his philosophy. During this period, Cal Boats, under Jensen Marine, was known for producing performance-oriented fiberglass sailboats that were solid, tough, and easy to handle.
While sharing the same hull as the original Cal 34, the Cal 34-III featured a higher aspect rig, contributing to its enhanced sailing characteristics. Distinguishing it as a more dedicated offshore cruiser, significant modifications were implemented. These included the addition of a bridgedeck and a companionway offset to starboard, which were practical changes for offshore safety and living. The interior also received updates, incorporating additional wood trim and redesigned layouts to maximize seating and bunk space, aligning with the comfort expected of an offshore vessel. Furthermore, the Cal 34-III boasted increased fuel and water tank capacities and heavier gauge standing rigging, reflecting its blue water aspirations, and came standard with wheel steering.
Sailing Performance and Handling
The Cal 34-III, with its design focused on robust cruising, exhibits balanced and predictable sailing characteristics. Its Sail Area to Displacement ratio of approximately 16.38 suggests that the boat is reasonably powered, capable of performing well in a range of conditions, but not overly sensitive to light air. A high Ballast to Displacement ratio of about 0.456 (45.6%) points to excellent initial stiffness and stability, indicating the boat's ability to stand up to a good breeze and provide a comfortable motion in a seaway. The Displacement to Length ratio of approximately 259.05 places it in the moderate-to-heavy displacement category, reinforcing its identity as a stable and capable cruiser rather than a lightweight racer.
Owners frequently describe the Cal 34-III as a "great well balanced boat." While Lapworth designs are often noted for performing best off the wind, the Cal 34-III is generally considered a comfortable vessel capable of covering significant distances. Its solid construction contributes to a feeling of security and reliability under sail.
Accommodations and Layout
The interior of the Cal 34-III was thoughtfully designed to enhance its blue water cruising capabilities, featuring a more conventional layout than earlier versions. Headroom is generous, typically around 6 feet 1 inch or 6 feet 2 inches on the centerline in the main cabin, providing comfortable movement throughout. The interior boasts a U-shaped galley located aft to port, often equipped with a three-burner gimbaled stove. Opposite the galley, to starboard, there is typically a quarter berth and a dedicated chart table.
The salon features redesigned seating and bunk space, contributing to a more comfortable living area. Forward, the large V-berth remains a staple, often lined with cabinets and drawers, offering ample storage for extended trips. The head compartment is supplied with water from the main tank. The interior finish benefits from additional wood trim, a feature consistent with the boat's promotion as a more refined offshore cruiser. While some might find it compact by modern standards, the Cal 34-III provides ample room for a couple on extended cruises.
Owner's Perspectives
Owners of the Cal 34-III consistently praise its robust construction and well-balanced sailing performance, echoing the builder's reputation for creating tough and easy-to-sail vessels. Many owners highlight the boat's solid feel and its comfortable motion, even in challenging sea states. The deep bilge is often cited as a positive feature, helping to keep the engine compartment dry. The decision to make wheel steering standard and incorporate heavier rigging was well-received by those seeking a more capable and reliable offshore boat. The enduring popularity of the Cal 34-III has fostered a strong and active community of owners, who continue to value and maintain these classic yachts.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Solid)
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Spade
- Ballast
- 4650 lbs (Lead)
- Displacement
- 10200 lbs
- Water Capacity
- 60 gal
- Fuel Capacity
- 34 gal
Engine
- Engine Make
- Vire
- Engine Model
- —
- Engine Type
- —
- Engine HP
- 25
- Engine Count
- 1
- Drive Type
- V-Drive
- Fuel Type
- Diesel
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 35.5 ft
- E (Main Foot)
- 11 ft
- I (Foretriangle Height)
- 41.25 ft
- J (Foretriangle Base)
- 13.75 ft
- Forestay Length (est)
- 43.48 ft
- Main Sail Area
- 195.25 sqft
- Foretriangle Sail Area
- 283.59 sqft
- Total Sail Area (Reported)
- 479 sqft
- Total Sail Area (Calc)
- 478.84 sqft
Dimensions
- LOA
- 33.24 ft
- LWL
- 26 ft
- Beam
- 10 ft
- Draft
- 5 ft
- Max Headroom
- -
- Air Draft
- -
Calculations
- Hull Speed
- 6.83 kn
- Pounds per Inch Immersion
- 929.01