The DS-18 is an 18-foot fractional sloop, conceived as a compact and accessible sailboat for recreational sailing and club racing. Designed by the collaborative efforts of Diller and Herman Schwill, and built by DS Yachts (also known as Schwill Yachts) in Odessa, Ontario, this monohull embodies the builder's philosophy of creating practical and popular trailerable sailboats. It quickly earned a reputation as a light and highly performing vessel, recognized for its stability and stiffness.
DS DS-18 Information, Review, Specs

- Make
- Model
- DS-18
- Builder
- Schwill Yachts Inc.
- Designer
- Diller & Schwill
- Number Built
- Production Year(s)
- 1975 - ??
History and Design
Production of the DS-18 commenced in 1975, a period during which DS Yachts, founded by Herman Schwill in 1971, was establishing its niche in the Canadian marine industry. The company focused on durable fiberglass construction, a material choice that facilitated efficient production and offered lower maintenance compared to traditional wood. Builder Article The design philosophy behind DS Yachts, and by extension the DS-18, centered on providing accessible boats that balanced performance with ease of use for a wide range of sailors. Builder Article The collaboration between Herman Schwill and G. Diller on the design of the DS-18 underscores a commitment to thoughtful naval architecture, aiming to resonate with the broader sailing community. While DS Yachts ceased operations in 1986, the legacy of their designs like the DS-18 continues to be appreciated by those seeking straightforward sailing vessels. Builder Article
Sailing Performance and Handling
The DS-18 is characterized as a light sailboat with a very high-performance capability. With a hull speed of 5.33 knots, she is designed to offer spirited sailing. Her robust design provides good stability and stiffness, making her capable of standing up to various wind conditions. Despite her compact size, the DS-18 generally offers a comfortable motion for a boat of her class, with her comfort value noted as just below average compared to similar designs. The fin keel and transom-hung rudder contribute to responsive handling, indicative of a design suited for agile maneuvering on the water.
Accommodations and Layout
Given its compact 18-foot length, the DS-18 prioritizes a simple and functional layout typical of small day-sailers or weekend cruisers. While specific details on the interior accommodations, such as maximum headroom or a detailed cabin arrangement, are not extensively documented, most boats of this size would offer basic shelter. This typically includes a small V-berth forward, possibly with some minimal storage, designed for overnighting rather than extended cruising. The focus is generally on maximizing usable cockpit space for sailing and providing essential, albeit modest, interior facilities.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Transom-Hung
- Ballast
- 480 lbs
- Displacement
- 1200 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 18 ft
- Waterline Length (LWL)
- 15.83 ft
- Beam
- 6.83 ft
- Draft
- 1.5 ft
- Max Headroom
- -
- Air Draft
- 26 ft
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 185 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 26.21
- Ballast / Displacement Ratio
- 40
- Displacement / Length Ratio (D/L) Ratio
- 135.05
- Comfort Ratio
- 8.7
- Capsize Screening Formula
- 2.57
- Hull Speed
- 5.33 kn