Cape Cod Cat — Information, Review, Specs

Charles Whittholz·1971·Cape Cod Shipbuilding
Cape Cod Cat drawingBuilder drawing
Hull type
Monohull · centerboard
Rig
Cat Rig
LOA
17' · 5.18 m
Displ.
2,200 lbs · 998 kg
First year
1971

The Cape Cod Cat is a 17foot fiberglass tribute to the traditional workboats that once defined the Atlantic seaboard. Designed as a versatile pocket cruiser, this model is built by the Cape Cod Shipbuilding Co. with an emphasis on the "overbuilt" philosophy that has sustained the yard for over a century. Unlike modern, lightweight performance boats, the Cape Cod Cat prioritizes stability, a massive cockpit, and the timeless aesthetics of a gaffrigged sail. Its design features a traditional plumb bow, a sweeping sheer line, and a barndoor rudder, all of which contribute to its reputation as a seaworthy vessel capable of handling the choppy waters of Buzzards Bay and beyond.

Measurements

Dimensions 01

LOA
17 ft
LWL
16.42 ft
Beam
7.92 ft
Draft
4.83 ft
Max headroom
4 ft
Air draft
-

Construction & hull 02

Construction
Fiberglass
Hull type
Monohull
Keel type
Centerboard
Rudder
1× —
Ballast
500 lbs (Lead)
Displacement
2200 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Cat Rig
P · main luff
-
E · main foot
-
I · fore ht.
-
J · fore base
-
Forestay (est)
-
Sail area
250 sqft

Calculations 04

SA/D ratio
23.64
Ballast/Disp.
22.73
D/L ratio
221.85
Comfort ratio
13.01
Capsize screening
2.44
Hull speed
5.43 kn

Sailing Performance & Handling

The Cape Cod Cat behaves exactly as a classic New England catboat should, characterized by high initial stability and a powerful "low-and-wide" footprint. With a beam of nearly 8 feet on a 17-foot waterline, the boat resists heeling aggressively, making it an excellent platform for families or older sailors. According to technical specifications from Cape Cod Shipbuilding, the vessel carries 235 square feet of sail on a single mast stepped far forward.

In light air, the large gaff-headed mainsail provides enough power to move the 2,500-pound displacement hull efficiently. However, like most catboats, the Cape Cod Cat is known to develop significant weather helm as the wind freshens. Experienced sailors typically manage this by reefing early—a task made simpler by the boat's traditional slab reefing system. The shallow draft of just 14 inches with the centerboard up allows it to "thin-water" sail into estuaries and coves that are inaccessible to most keelboats. When the heavy steel centerboard is lowered to its full 4' 8" depth, the boat tracks well and points respectably for a hull of its beam, though it will never match the upwind angles of a deep-keel sloop.

Interior Comfort & Variations

For a 17-foot boat, the Cape Cod Cat offers a surprisingly functional interior, though it is best described as a "weekend cruiser" rather than a long-term liveaboard. The cabin features two full-length berths that extend under the cockpit seats, providing sleeping accommodations for two adults. Headroom is limited to sitting height, which is standard for this class of vessel.

The manufacturer utilizes a "teardrop" portlight design that provides natural light while maintaining the classic exterior profile. While the standard layout remains consistent, Cape Cod Shipbuilding offers various levels of finish, ranging from utilitarian fiberglass surfaces to extensive teak or mahogany trim. The yard also produces "sibling" designs on different hulls that cater to similar buyers, such as the Herreshoff H-12 ½ and the Bull’s Eye; however, the Cat remains unique in their lineup for its beam-to-length ratio and cabin volume. Owners often customize the interior with portable heads or small galley stoves, as the factory keeps the space open to maximize the feeling of volume.

Known Issues & Buyer’s Checklist

Prospective buyers of a used Cape Cod Cat should focus on the specific maintenance requirements of a gaff-rigged boat with a centerboard.

  • Centerboard Trunk and Pennant: Because the centerboard is made of heavy steel, the lifting pennant and the pivot bolt are subject to wear and corrosion. Inspect the trunk for leaks and ensure the board drops and rises without binding.
  • Wood Trim Decay: Many Cape Cod Cats feature significant amounts of exterior wood, including coamings and rub rails. If the varnish has been neglected, look for "graying" or soft spots in the mahogany, which can lead to expensive ship carpentry repairs.
  • Gaff Rig Hardware: The spruce or aluminum spars and the associated blocks for the peak and throat halyards require regular inspection. Check for hairline cracks in the mast hoops and ensure the gaff saddle is properly leathered to prevent mast chafing.
  • Deck-to-Hull Joint: While Cape Cod Shipbuilding is famous for its robust bonding methods, older boats should be checked for "crazing" or stress cracks around the chainplates and deck hardware, which could indicate water ingress into the core.

Community & Resources

The Cape Cod Cat enjoys a dedicated following within the broader catboat community. The primary resource for technical data and social gatherings is the Catboat Association, an organization dedicated to the preservation and racing of this specific hull type. While the association covers various builders, the Cape Cod Cat is a regular participant in their sanctioned events and regattas. Owners also benefit from the continued existence of the original builder in Wareham, Massachusetts, which still provides OEM parts and technical advice for hulls built decades ago.

The Verdict

The Cape Cod Cat is a "forever boat" designed for the sailor who values tradition and stability over raw speed. It is a stout, forgiving vessel that excels in coastal exploration and afternoon day-sailing.

Pros:

  • Exceptional stability and safety for its size.
  • Classic aesthetics that turn heads in any harbor.
  • Shallow draft allows for easy trailering and beaching.
  • High-quality fiberglass construction from a legacy American builder.

Cons:

  • Weather helm can be tiring in heavy air if not reefed properly.
  • The gaff rig is more complex to tune and douse than a modern Bermudan rig.
  • Limited "sitting-only" headroom in the cabin.

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