The Menger Cat 15 is a quintessential example of the fiberglass catboat revival that began in the mid-1970s. Designed by the father-and-son team of Bill and Andrew Menger, this 15-foot vessel was envisioned as a robust, traditional-looking daysailer and pocket cruiser capable of navigating the shallow, shoaly waters of Long Island’s Great South Bay. Built by Menger Boatworks until 2004, the design's legacy continues today through Thompson Boatworks, which continues to produce the model as the Thom Cat 15 using the original Menger molds. The boat is distinguished by its extreme beam-to-length ratio—spanning 7 feet across its 15-foot hull—giving it the footprint and stability of a much larger vessel while remaining easily trailerable.
Menger Cat 15 Information, Review, Specs

- Make
- Menger
- Model
- Cat 15
- Builder
- Menger Boatworks
- Designer
- Menger
- Number Built
- Production Year(s)
- 2001 - ??
Sailing Performance & Handling
The Menger Cat 15 provides the classic "big boat feel" in a small package, largely due to its substantial 7-foot beam and 1,100-pound displacement. With a sail area of approximately 165 square feet, the boat has a high sail area-to-displacement ratio (roughly 24.7), which allows it to excel in light to moderate air where heavier traditional wooden boats might struggle. In his review for Sailing Magazine, noted naval architect Bob Perry highlighted the design’s balance and the efficiency of the Menger-designed gaff rig.
Handling is defined by the massive "barn door" rudder, which provides significant leverage and allows the boat to pivot almost within its own length. Like most catboats, the 15-footer can develop significant weather helm if over-canvassed; however, because the gaff rig allows for easy reefing, sailors can quickly depower the sail to maintain a neutral helm. The retractable centerboard reduces the draft to just 6 inches, allowing the boat to be beached or sailed into the skinniest of waters, while its 3-foot-6-inch depth with the board down provides enough lift to tack through roughly 100 degrees.
Interior Comfort & Variations
Despite its diminutive length, the Menger Cat 15 features an enclosed cuddy cabin that offers more utility than a standard daysailer. The interior is dominated by two berths that run along the hull sides, separated by the centerboard trunk which often serves as a foundational support for a small table. Headroom is limited—sitting room only—but the cabin provides a dry space for overnighting or storing gear during a day cruise.
The boat was primarily offered in a standard configuration, though individual units vary based on whether they were equipped with the optional teak trim package or the more modern "low-maintenance" fiberglass-heavy finish. Unlike its larger sibling, the Menger Cat 23, which featured a full galley and head, the 15 relies on portable equipment like a camping stove and a cedar bucket or portable chemical toilet. The transition to Thompson Boatworks saw minor refinements in hardware and composite materials, but the interior layout remains faithful to the original Menger design.
Popular Mentions & Media
The Menger Cat 15 is a frequent subject of technical discussion and historical preservation within the Catboat Association, the primary organization dedicated to the type. The model has been featured in several "Best of" lists for small traditional craft in Soundings Magazine and was a centerpiece in Bob Perry's design reviews of the early 1990s. Its cultural footprint is most visible at regional catboat rendezvous along the Eastern Seaboard, where the Menger brand is celebrated as a bridge between the wooden workboats of the 19th century and modern fiberglass recreation.
Known Issues & Buyer’s Checklist
Prospective buyers should focus on the technical peculiarities of the gaff rig and the centerboard system.
- Centerboard Trunk and Cable: Over time, the cable that raises and lowers the centerboard can fray. Check the trunk for leaks or stress cracks near the pivot pin, which are common if the board has struck an underwater object at speed.
- Mast Step and Tabernacle: Many Menger 15s feature a folding mast for trailering. Inspect the hinge and the surrounding deck for compression or crazing, as the high loads of the unstayed mast are concentrated here.
- Gaff Rig Hardware: The leathering on the gaff jaws and the wooden blocks often require seasonal maintenance. Check the gaff-to-mast connection for excessive wear or gouges in the spar.
- Chainplate Sealing: While the catboat has no shrouds, the forestay chainplate is a known entry point for moisture into the bow locker. Ensure the hardware is re-bedded periodically to prevent core saturation.
Community & Resources
The most prominent resource for owners is the Catboat Association, which maintains an active registry and a technical listserv where Menger-specific issues are regularly diagnosed. For parts, technical drawings, or new builds, Thompson Boatworks in Amityville, NY, remains the authoritative commercial contact, as they hold the original Menger tooling and intellectual property.
The Verdict
The Menger Cat 15 is a "character boat" that trades raw speed for stability, charm, and shallow-water access. It is an ideal vessel for the sailor who appreciates traditional aesthetics but lacks the time for the maintenance of a wooden hull.
Pros:
- Exceptional Stability: The 7-foot beam makes it nearly impossible to capsize in normal conditions.
- Trailering Ease: A shallow draft and optional folding mast make it a true "go-anywhere" cruiser.
- Traditional Aesthetic: Classic lines, gaff rig, and bronze hardware provide a timeless look.
Cons:
- Weather Helm: Requires active sail management and early reefing in heavy air.
- Cramped Quarters: The cabin is suitable for "pocket cruising" but is tight for two adults.
- Rig Complexity: The gaff rig has more lines (peak and throat halyards) than a modern Marconi rig, which may pose a learning curve for beginners.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Centerboard
- Rudder
- 1x —
- Ballast
- -
- Displacement
- 700 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 15 ft
- Waterline Length (LWL)
- 15 ft
- Beam
- 7 ft
- Draft
- 3.5 ft
- Max Headroom
- -
- Air Draft
- 18 ft
Rig & Sails
- Rig Type
- Cat Rig
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 145 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 29.43
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 92.59
- Comfort Ratio
- 5.4
- Capsize Screening Formula
- 3.15
- Hull Speed
- 5.19 kn