Design and Construction
McVay's design sits at the extreme light end of the spectrum: a displacement-to-length ratio of 58.15 and a ballast-to-displacement ratio of 0 percent place her firmly among unballasted planing dinghies rather than keelboats. The centerboard configuration gives a board-up draft of just half a foot for trailing and shallow exploration, extending to 4 feet when the board is dropped for windward work. Her capsize screening ratio of 3.21 and comfort ratio of 4.23 confirm a stiff, tender-ish platform built for athletic sailing, not offshore motion. The solid fiberglass hull and deck keep the structure honest and simple for a boat of this class.
Rig and Handling
The fractional sloop rig with 154 square feet of sail drives a hull that the spec record calls a very high performer, stable and stiff on her lines. A sail-area-to-displacement ratio of 33.18 is generous for a 640-pound hull, and the 5.52-knot hull speed is reachable in the right breeze. The same authority that praises her pace notes she is best suited as a racing boat, and the ultralight displacement with no ballast explains why: she accelerates and heels quickly, rewards active crew weight, and is not a vessel for passive motion comfort. The centerboard lets her pivot in skinny water yet bite to weather when deployed.
Accommodations
This is a dayboat, not a camper. The recorded layout carries zero cabins, zero berths, zero heads, zero headroom, and zero water capacity. There is no enclosed interior space to speak of, and no provision for stored fresh water. The single engine noted in the record shows zero horsepower and zero fuel capacity, underscoring that any propulsion is auxiliary at best or absent in practice. Buyers expecting overnight accommodation will find none; the Mouette 19 is built around the cockpit and the sail.
Known Issues
The one documented safety caveat is a low righting capability if capsized. With an ultralight centerboard hull, she will not self-right like a weighted keelboat, and a turtled dinghy of this type demands prompt crew action and a buoyant masthead or similar recovery aid. This is the trade inherent in the unballasted racing dinghy concept, not a construction defect, but it defines the limits of where and how she should be sailed.
Refits and Ownership
Ownership centers on rig, centerboard, and trailer rather than systems. With no tankage, head, or berths to maintain, the ongoing work is the fractional standing rigging, the board trunk and pivot, and the fiberglass hull's gelcoat and joints. The simple spec sheet means fewer failure points than a cruiser, and the light weight keeps mast stepping and storage manageable for a single owner.
The Verdict
The Mouette 19 is a pure ultralight racing dinghy: fast, stiff, and trivial to trail, but with no accommodation and no self-righting reserve. She rewards a racing-minded owner who values pace over creature comfort.
Pros
- Very high performance for her length with a stiff, responsive hull
- Ultralight 640-pound displacement and half-foot board-up draft for easy trailing
- Simple unballasted fiberglass construction with minimal systems to maintain
Cons
- Low righting capability if capsized, with no ballast to aid recovery
- No cabins, berths, head, or water capacity for any cruising use
- Zero-horsepower engine record and no fuel capacity limit any auxiliary propulsion





