Thompson Boatworks


The Thom Cat Daysailer is designed in the tradition of the racing cats of the 1890's. At that time cats were raced extensively, using sandbags for ballast and shifting it on different tacks. These "Sandbaggers," as they were called, were know for their speed and excitement.

We have captured the feeling of those times yet produced a strong, safe boat with graceful lines and an attractive gaff rig. This design, combined with modern fiberglass construction, results in an ideal boat for sailors of discriminating taste - and no sandbags needed!

She makes a comfortable family daysailer that is easy to sail and maintain. She is trailerable and her rig can be removed or replaced in a matter of minutes. Her fine lines are a mark of an easily driven hull, while her hard bilges and great beam give her ample stability to carry her large, efficient sail. This combination produces a fast, responsive boat that is handy to sail. Her pleasing appearance and sound construction give her owners a certain pride not instilled by most of the modern daysailers on the market today. The Thom Cat Daysailer is a boat for the traditionalist and the practical sailor alike.

Thom Cat 15 Base Price — $16,000


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Standard Features

Fiberglass: All hand laid up with Isophthalic Gelcoat. White hull; Tan deck, Centerboard. O.B. Bracket Molded into deck. Foam flotation.
Teak: All exterior trim is solid teak; Toerail, CB trunk cap, Boom Crotch.
Bronze: Three Mooring cleats, Two Haylard cleats, Two Chocks, CB cleat and Forstay Chain plate.
Spars: Aluminum painted with polyurethane Buff, (white mast top). Tapered mast, Gaff and Boom slotted Alum. Extrusions
Rigging: Forstay 3/16" Stainless Steel, Running rigging; three strand spun polyester, Lazy Jacks, Harken ball bearing blocks
Rudder: Varnished Mahogany Tiller, Kick-up Blade.
Sail: White Dacron with one set of reef points. Made in the USA.
Storage: O.B. tank stores in the aft deck hatch. Locker under forward deck.



Tanbark or Egyptian Cotton colored Dacron sail in lieu of white

Egyptian Cotton Sail

Sail sover, cut-outs for peak halyard
Cockpit cover
Combined sail and cockpit cover
Winter-trailering cover, made of Cordura (nylon)
Bottom primed and painted
Trailer, galvanized, with rollers, jack stand, Bearing Buddies
Mast tabernacle (enables lowering of mast by one person, with boom, sail and running rigging in place)
Sikkens-Cetol treatment on all teak


Thompson Boatworks • 121 Maple Avenue • Bay Shore, NY 11706
Phone: 631-889-2918 • Email:
Copyright © 2023 Thompson Boatworks  •  Last updated September 17, 2023