The Sailstar Defender 17 is a vintage fiberglass daysailer that serves as a bridge between the nimble performance of a racing dinghy and the utility of a pocket cruiser. Launched in the mid-1960s by the Sailstar Boat Co. of West Barrington, Rhode Island, the Defender 17 was designed by Robert Baker and Talman Bigelow to provide a versatile platform for families and coastal explorers. It was built on the same 17-foot hull as its sibling, the open-cockpit Explorer 17, but was distinguished by a small cuddy cabin integrated into the deck mold. This era was defined by the rapid evolution of fiberglass construction, and the Defender 17 was a direct competitor to popular designs like the O'Day Day Sailer, eventually becoming part of the early catalog for Bristol Yachts after Clint Pearson acquired Sailstar in 1964.
Sailstar Defender 17 Information, Review, Specs
- Make
- Sailstar
- Model
- Defender 17
- Builder
- Sailstar Boat Co.
- Designer
- Talman Bigelow/Robert Baker
- Number Built
- Production Year(s)
- 1967 - ??
Sailing Performance & Handling
The Defender 17 is characterized by a fractional sloop rig and a versatile centerboard design that allows for a shallow draft of just 7 inches with the board up, extending to roughly 3 feet 7 inches when fully deployed. This configuration makes it an ideal boat for gunkholing and beaching in thin water. With a displacement of approximately 500 to 600 pounds and a sail area of 148 square feet, the boat has a high sail area-to-displacement ratio, typical of a performance-oriented dinghy rather than a heavy cruiser.
Handling is generally described as light and responsive. The hull features a relatively wide 6-foot 4-inch beam, which provides a degree of initial stability that was highly marketed at its launch as "self-righting" and "self-bailing." However, owner experiences noted in technical retrospectives suggest that while the boat is stiff in a breeze, it lacks the ultimate righting moment of a keelboat and should be sailed with the attention required of a large dinghy. The inclusion of a small cuddy cabin adds aerodynamic windage compared to the open Explorer variant, but it provides a drier ride for the crew in choppy conditions.
Popular Mentions & Media
The Sailstar 17-foot line is famously associated with one of the earliest legal battles in the fiberglass boat-building industry. The O'Day Corporation unsuccessfully sued Sailstar, alleging that the 17-foot design was an unauthorized copy of the Uffa Fox-designed O'Day Day Sailer. This piece of maritime legal history is documented in Daniel Spurr’s authoritative book on fiberglass boat building, Heart of Glass, which notes that the Sailstar models featured a slightly wider bow and a flatter transom than the O'Day counterparts.
Known Issues & Buyer’s Checklist
When inspecting a Defender 17, potential owners should focus on the following high-signal areas:
- Foam Flotation: Many early fiberglass boats used expanding foam for positive buoyancy. Over decades, this foam can become waterlogged if the hull has leaked, significantly increasing the boat's weight and compromising its "unsinkable" rating.
- Centerboard Trunk: The centerboard pivot bolt and the trunk itself are prone to wear. Check for leaks around the pivot pin and inspect the fiberglass inside the trunk for cracks caused by the board slamming in heavy seas.
- Deck Delamination: The cuddy cabin top and the side decks may feature a balsa or plywood core that is susceptible to rot if deck hardware (cleats, stays) was not properly re-bedded. Soft spots underfoot are a primary indicator of core failure.
- Transom Integrity: Because the Defender was often used with small outboards (2–5 hp), the transom can show stress cracks or delamination if a heavy engine was left on the bracket during road transport.
- Woodwork: While the hull is fiberglass, many Defenders feature wooden coamings and trim. Check for dry rot, particularly where the wood meets the fiberglass deck.
Community & Resources
While there is no longer a dedicated Sailstar manufacturer association, the Defender 17 is a welcome member of the Bristol Yachts Owners Association, which maintains records and technical data for the various Sailstar models absorbed into the Bristol line. Additionally, enthusiasts of early fiberglass daysailers often congregate on general classic boat forums, where the boat's shared history with the O'Day and Pearson families is frequently discussed.
The Verdict
The Sailstar Defender 17 is a charming piece of American sailing history, offering a blend of vintage aesthetics and practical utility.
Pros:
- Versatility: The shallow draft and light weight make it easy to trailer and launch from a standard boat ramp.
- Protection: The cuddy cabin provides a dry place to store gear or a sheltered "fort" for young children during day trips.
- Stability: A wide beam makes it more forgiving than many 17-foot racing dinghies of the same era.
Cons:
- Maintenance: Older fiberglass requires vigilance regarding water intrusion and hardware bedding.
- Space Trade-off: The cabin occupies significant space that would otherwise be used for a larger cockpit in the Explorer model.
- Limited Living Space: Despite the cabin, the interior is strictly for storage or temporary shelter, not overnighting for adults.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Centerboard
- Rudder
- 1x —
- Ballast
- -
- Displacement
- 500 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 17 ft
- Waterline Length (LWL)
- 15.75 ft
- Beam
- 6.33 ft
- Draft
- 3.6 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 148 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 37.59
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 57.13
- Comfort Ratio
- 4.1
- Capsize Screening Formula
- 3.19
- Hull Speed
- 5.32 kn