The Blue Jacket 23 MS (Motor Sailer) is a robust, Canadian-built pocket cruiser designed to provide year-round utility in the often-unpredictable waters of the Great Lakes and the North Atlantic coast. Built by Halman Manufacturing Co. in Beamsville, Ontario, and designed by the legendary George Hinterhoeller, the 23 MS is a testament to the "big boat in a small package" philosophy. Unlike conventional 23-footers that focus on light-air performance or trailerability at the expense of comfort, the Blue Jacket 23 MS prioritizes a protected steering station and a heavy-displacement hull, making it one of the few true motor sailers in the sub-25-foot category.
Blue Jacket 23 MS Information, Review, Specs

- Make
- Blue Jacket
- Model
- 23 MS
- Builder
- Halman Manufacturing/Collingwood Yachts
- Designer
- William Garden
- Number Built
- Production Year(s)
- 1984 - ??
The vessel's identity is closely tied to its siblings and the evolution of the Halman factory. While the Blue Jacket 23 was also available as a standard sloop with a traditional open cockpit, the "MS" variant is distinguished by its upright pilothouse and internal steering station. It shares a spiritual and construction lineage with other Hinterhoeller-influenced designs produced at the Halman facility, such as the Halman 20 and the larger Halman Horizon 27.
Sailing Performance & Handling
The Blue Jacket 23 MS is characterized by a "steady as she goes" temperament rather than agile racing performance. With a full keel and a significant displacement for its length, the boat tracks exceptionally well and resists the "hobby-horsing" common in lighter 23-footers. The inclusion of the pilothouse increases the boat's windage, which can make close-quarters maneuvering in high winds a challenge; however, the heavy keel provides the necessary ballast to maintain a stiff posture when under sail.
According to technical archives from the period, the boat was typically rigged as a masthead sloop. In light air, the 23 MS can be sluggish, often requiring the auxiliary engine—frequently a small Yanmar or Bukh diesel—to maintain momentum. However, when the breeze picks up to 15 knots or more, the hull finds its stride. The motor-sailer configuration allows the owner to keep the engine at low RPMs to provide steerage and charging power while the sails provide the primary propulsion and stabilization. This "hybrid" approach to passage-making is where the Blue Jacket 23 MS excels, offering a comfortable, upright ride while contemporary sloops of the same size might be forced to reef and endure a wet ride.
Interior Comfort & Variations
The defining feature of the Blue Jacket 23 MS interior is the dual-station steering. The pilothouse provides a sheltered helm with excellent 360-degree visibility, a luxury rarely found on vessels under 30 feet. This layout allows the skipper to remain dry and warm during inclement weather, extending the sailing season into the late autumn.
Moving forward and down into the main cabin, the layout is surprisingly functional. It typically features a compact galley, a small settee, and a V-berth forward. The use of warm teak accents and high-quality fiberglass moldings—a hallmark of Halman production—gives the interior a traditional, salty feel. The headroom is notable for a 23-foot boat, facilitated by the raised house structure. Variations of the model exist primarily in the cockpit configuration; while the "MS" version focuses on the enclosed helm, some owners have modified the aft cockpit area for better fishing or lounging utility.
Known Issues & Buyer’s Checklist
Prospective buyers of a Blue Jacket 23 MS should focus their inspections on the unique structural elements of the pilothouse and the aging mechanical systems:
- Pilothouse Window Seals: The large windows that define the 23 MS are prone to leaking after decades of UV exposure. Inspect the interior woodwork around the window frames for "black rot" or water staining, which indicates the seals require re-bedding.
- Deck Core Integrity: Like many Halman-built boats of the 1970s and 80s, the Blue Jacket 23 MS utilizes a balsa-cored deck. Moisture can ingress through improperly sealed stanchion bases or deck hardware. A percussion test (tapping with a plastic hammer) should be performed to check for delamination.
- Engine Access and Cooling: Because the engine is tucked under the pilothouse floor, access can be tight. Check the motor mounts and the exhaust elbow for corrosion. Ensure the raw-water intake is clear, as these boats were often used in silty or weedy inland waters.
- Hull-to-Deck Joint: Examine the rub rail and the internal joint for signs of separation. While Halman construction was generally robust, the stresses of motor-sailing in heavy chop can strain this junction over time.
Community & Resources
Owners of the Blue Jacket 23 MS often find technical support through broader Canadian classic boat networks. The Hinterhoeller and Halman Owners Group remains a primary source for technical drawings and advice on sourcing parts for these vintage Ontario builds. Additionally, the Great Lakes Cruising Club often features members who have utilized the Blue Jacket 23 MS for extensive coastal exploration, offering a wealth of anecdotal information on the boat’s sea-keeping abilities.
The Verdict
The Blue Jacket 23 MS is a specialized vessel that appeals to the "all-weather" sailor who values protection and stability over speed. It remains one of the most capable pocket cruisers for solo sailors or couples who wish to explore coastal waters without being at the mercy of the rain.
Pros:
- Weather Protection: The enclosed pilothouse is a game-changer for cold-climate sailing.
- Sturdy Construction: Built to the high standards of the Hinterhoeller/Halman era.
- Exceptional Tracking: The full keel provides a stable, predictable motion in a seaway.
Cons:
- Light Air Performance: Struggles to move without auxiliary power in under 10 knots of wind.
- Windage: The high profile can make docking tricky in a crosswind.
- Limited Production: Finding one on the used market can be difficult as owners tend to hold onto them for decades.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Full
- Rudder
- 1x Attached
- Ballast
- 700 lbs
- Displacement
- 6000 lbs
- Water Capacity
- 15 gal
- Fuel Capacity
- 24 gal
Dimensions
- Length Overall (LOA)
- 24.25 ft
- Waterline Length (LWL)
- 20.75 ft
- Beam
- 10 ft
- Draft
- 2.25 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 215 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 10.42
- Ballast / Displacement Ratio
- 11.67
- Displacement / Length Ratio (D/L) Ratio
- 299.81
- Comfort Ratio
- 19.81
- Capsize Screening Formula
- 2.2
- Hull Speed
- 6.1 kn