Cal 2-46

1973–1976 · designed by C. William Lapworth · built by Jensen Marine (Cal Yachts)

The Cal 2-46 is a redesign of the earlier Cal 46, developed to improve interior volume and livability without abandoning the offshore capability of the original Lapworth hull. The design shifts the engine room to midships, moves the aft cabin further aft to create a dedicated master stateroom, and enlarges the main saloon — making it one of the roomiest production 46-footers of its era. Lapworth reportedly regarded it as his best design and owned one himself. It was aimed squarely at serious bluewater cruising couples or families wanting a capable passagemaker with hotel-grade accommodations.

Check this first — sloop and ketch rigs were both offered. That is a real difference in sail inventory, rigging cost and how the boat is worked shorthanded, not a trim option, so confirm which this hull has before pricing a re- rig or judging her for your own passage profile.

This is a general read on the Cal 2-46 class — informed background, not a verdict on any individual boat. Condition, refit history, and how a particular hull was sailed and stored matter far more than class reputation. Use it to know what to look for; for a read on a specific listing, run a free FairKeel report on that boat.

At a glance

Hull form: Fin Keel
Ballast type: Encapsulated Lead
Rudder: Spade
Hull construction: Fiberglass
Production: 1973–1976
Built in: USA

What the Cal 2-46 is known for

Exceptional interior volume for a 1970s 46-footer — dedicated aft master cabin, large saloon, and a functional midships engine room are rare at this LOA in the era.
Proven Lapworth offshore hull with a solid bluewater reputation; the design was used for serious passagemaking by original owners and subsequent cruisers.
Well-organised cockpit and sail plan with controls led to the helm, making the boat manageable for a short-handed crew or couple.
Available in sloop or ketch rig, giving buyers options suited to different passage profiles and crew experience.
Robust Perkins diesel in a proper engine room — the accessible engine space is a practical advantage for offshore maintenance and troubleshooting.

Known trade-offs

Large original portlights are a known weak point — virtually all 50-year-old examples will have some history of leaking, with associated interior damage.
Black iron original fuel tanks are a serious liability on any hull that has not been repowered or refitted — contaminated fuel is an offshore safety issue.
Spade rudder with no lower bearing support is vulnerable to bearing wear and laminate cracking at the hull exit; a failed rudder offshore has serious consequences.
Balsa-cored deck is 50+ years old and frequently shows moisture intrusion at hardware penetrations — a full deck replacement is a realistic scenario on poorly maintained examples.
Small production run (approximately 95 hulls) means limited owner community, fewer parts precedents, and lower resale liquidity compared to higher-volume cruiser classes.

Age-related quirks to expect

Large original portlights leak severity: Medium affects: 1973-1976 (all hulls)

Balsa-cored deck moisture intrusion via poorly bedded deck hardware severity: Medium affects: 1973-1976 (all hulls)

Original black iron fuel tanks prone to internal corrosion and contamination severity: High affects: 1973-1976 (all hulls)

Wooden spreaders on original rig — many have been replaced but verify on each hull severity: Medium affects: 1973-1976 (unreplaced hulls)

Osmotic blistering exposure common to 1970s Jensen-era hand-laid hulls severity: Medium affects: 1973-1976 (all hulls)

Systems to check before you buy

Deck core and hardware bedding priority: offshore, liveaboard, coastal

Balsa-cored deck is 50+ years old. Probe all stanchion bases, chainplate entry points, winch pads, and cleat fastenings for soft spots indicating wet core. Undetected rot can spread extensively before becoming visible.

Fuel system (tanks and lines) priority: offshore, liveaboard, motor

Original black iron tanks are well past service life and prone to internal rust scale contaminating the fuel supply. Inspect tank condition, look for sediment in filters, and budget for replacement if not already done.

Spade rudder and bearings priority: offshore, coastal, racing

Spade rudder is unsupported below — check rudder post bearings for excessive play (wiggle test at the blade tip), inspect fiberglass laminate at the hull exit for stress cracking, and verify rudder foam core has not waterlogged.

Chainplates and bulkhead attachment priority: offshore, coastal, liveaboard

Chainplates on Cal models of this vintage are known to leak where they pass through the deck, which can delaminate the bonding to the main bulkhead over time. Pull chainplate covers and inspect for corrosion, elongated holes, and wet laminate at the bulkhead face.

Main engine and engine room priority: offshore, liveaboard, motor

Original engine is a Perkins 85hp diesel, now 50 years old. A proportion of hulls have been repowered. Verify hours, check for coolant leaks, oil weeping at the heat exchanger, and inspect the engine mounts for deterioration. The midships engine room is a genuine workspace — use it for a thorough inspection.

How it fits your plans

Offshore: A legitimate bluewater passagemaker with substantial displacement (30,000 lbs), a deep fin keel, and an interior designed for extended passages. The midships engine room, well-organised sail controls, and large fuel capacity support long-range use. Age demands a thorough pre-purchase survey before any offshore commitment.
Liveaboard: One of the most livable production 46-footers of its era — dedicated aft master stateroom, large amidships saloon, real engine room, and a covered steering station. Interior volume is genuinely unusual for a 1970s production boat. Older systems (tanks, wiring, plumbing) will require progressive upgrading.
Coastal: Capable and comfortable for coastal cruising. The protected cockpit and sail controls eased to the helm make it manageable short-handed. May feel undercanvassed in light air unless sails have been updated.
Weekending: Technically capable but the size and age-related maintenance overhead make it overkill for weekend use unless the owner is already committed to the upkeep cycle.
Racing: Not a racing platform. Moderate-to-heavy displacement and cruising-optimised sail plan put it well outside competitive club racing.

This guide is the class. A report is that hull. Paste the listing you're looking at and FairKeel grades every claim in it against what's known about the Cal 2-46 — where the evidence is thin, the red flags worth a second look, the costs likely to land in your first season, and whether the boat suits the plans you describe in a few short questions.

It won't read the photos or put a number on the boat — that's the $249 Deep-Dive, and for the real answer, a surveyor. It will tell you when a Deep-Dive isn't worth buying. Free, no account, usually a minute or two.

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