The Mariner 36, designed by Peter Canning and built by the Mariner Yacht Co. of East Rochester, New Hampshire, is a purpose-built cruising vessel that emerged during the late 1970s as an alternative to the "mass-produced" aesthetic of the era. Produced between 1978 and 1983 with approximately 84 units completed, the design reflects the philosophy of company founder Jack Cogswell, who sought to marry the durability of a fiberglass hull with the warmth and craftsmanship of a traditional wood interior. Often overshadowed by the more prolific "Mariner" yachts built in the Far East, the New Hampshire-built Mariner 36 (frequently referred to as the Mariner 36 Canning) is a distinct, New England-bred cruiser known for its robust construction and offshore capabilities.
Canning Mariner 36 Information, Review, Specs

- Make
- Canning
- Model
- Mariner 36
- Builder
- Mariner Yacht Co.
- Designer
- Peter Canning
- Number Built
- 84
- Production Year(s)
- 1978 - 1983
Sailing Performance & Handling
The Mariner 36 is characterized by a moderate-to-heavy displacement of roughly 16,000 pounds, resulting in a motion comfort ratio of approximately 30. This makes the vessel remarkably sea-kindly in heavy weather, where its mass and momentum allow it to track through chop with minimal pounding. With a Sail Area/Displacement (SA/Disp) ratio of approximately 15.05, the boat is intentionally under-canvassed by modern standards, prioritizing safety and stability over light-air speed. In lighter winds, the Mariner 36 can feel sluggish, often requiring the engine or a large genoa to maintain momentum.
Handling is defined by its fin keel and skeg-hung rudder, a configuration that offers a balance between the maneuverability of a modern fin-keel boat and the directional stability of a full-keel cruiser. The rudder's placement on a substantial skeg provides protection against debris and improves tracking, though some owners have noted significant leeway when beating to weather due to the relatively shallow 5-foot draft. In technical evaluations by Good Old Boat, the design is often grouped with the Pearson 36 and Islander 36 as a family-oriented coastal and bluewater cruiser, though it leans more toward the "heavy cruiser" end of that spectrum than the performance-oriented Islander.
Interior Comfort & Variations
True to Jack Cogswell’s vision, the interior of the Mariner 36 is its standout feature, emphasizing traditional joinery over the "hospital-ward" fiberglass liners common in 1980s assembly-line boats. The layout typically features a forward V-berth followed by a full-width head compartment that provides a physical and acoustic buffer between the sleeping quarters and the main salon. The salon itself is airy, often featuring a bulkhead-mounted table that can be stowed to create an open living space.
The galley is a U-shaped configuration located near the companionway for optimal ventilation and safety while cooking at sea. While described as "tight" in some editorial reviews, the layout is highly seaworthy, providing the cook with ample bracing points. Materials used include extensive teak and holly soles, which, when well-maintained, offer a level of "old-world" charm rarely found in boats of this size and vintage. Sibling models built on similar principles include the Mariner 28 and Mariner 31, while larger variants like the Mariner 38, 39, and the Brewer-designed Mariner 47 were also produced by the New Hampshire facility, though in smaller numbers.
Popular Mentions & Media
The Mariner 36 gained a notable cultural footprint through "Sparkle Plenty," a well-documented hull owned by Tory and Betty Sue Salvia. This specific boat was featured in various media produced by The Sailing Channel, where it was highlighted as a "sleeper boat"—a vessel that offers exceptional value and build quality for its price point but remains largely unknown to the general public. These reviews often emphasize the boat's suitability as an affordable liveaboard for those willing to maintain its extensive wood trim.
Known Issues & Buyer’s Checklist
Prospective buyers should approach the Mariner 36 with a technical checklist focused on the longevity of its core materials:
- Deck Delamination: Like many boats of its era, the Mariner 36 utilizes a balsa-cored deck. Moisture ingress around the chainplates, stanchions, and the teak-trimmed hatches is a common point of failure. Any "soft" or "spongy" feel underfoot during inspection indicates core rot.
- Hull Voids: While the hull is generally solid fiberglass, at least one high-profile case (documented in Good Old Boat) identified voids and resin failure in the lower hull sections, likely due to a manufacturing defect or improper previous repairs. A thorough percussion sounding of the hull is recommended.
- Engine Accessibility: Many original units were equipped with older Westerbeke or Yanmar diesels. While the engine compartment is relatively large, the steep companionway steps and surrounding cabinetry can make major overhauls difficult. Many well-maintained units have since been repowered with Beta Marine engines.
- Skeg and Rudder Integrity: The skeg-hung rudder is a safety feature, but the hardware connecting the rudder to the skeg should be inspected for play or corrosion, which can lead to "clunking" or stiff steering.
Community & Resources
The Mariner 36 shares a community with other New Hampshire-built Mariners. The Mariner Yacht Owners Group is a primary resource for technical data and historical brochures, often coordinating through social platforms to share refit advice specific to the Canning and Brewer designs.
The Verdict
The Mariner 36 (Canning) is a "sailor’s sailboat" for those who value traditional aesthetics and heavy-weather security over modern racing performance. It is a robust, New England-built alternative to the lighter, more generic cruisers of the early 1980s.
Pros:
- Excellent motion comfort and sea-kindliness in heavy conditions.
- High-quality interior joinery with a classic, warm atmosphere.
- Skeg-hung rudder provides significant protection for offshore use.
- Exceptional value for a 36-foot bluewater-capable cruiser.
Cons:
- Under-canvassed and relatively slow in light-to-moderate winds.
- Extensive exterior and interior wood requires significant maintenance.
- Balsa-cored decks are susceptible to moisture and delamination if neglected.
- Can be difficult to distinguish from the unrelated "Mariner" models built in Asia.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Balsa Core)
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Skeg-Hung
- Ballast
- 5650 lbs (Lead)
- Displacement
- 16000 lbs
- Water Capacity
- 104 gal
- Fuel Capacity
- 32 gal
Dimensions
- Length Overall (LOA)
- 36 ft
- Waterline Length (LWL)
- 30 ft
- Beam
- 11.5 ft
- Draft
- 5 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 39 ft
- E (Main Foot)
- 13.5 ft
- I (Foretriangle Height)
- 45 ft
- J (Foretriangle Base)
- 14.75 ft
- Forestay Length (est)
- 47.36 ft
- Sail Area
- 595 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 14.99
- Ballast / Displacement Ratio
- 35.31
- Displacement / Length Ratio (D/L) Ratio
- 264.55
- Comfort Ratio
- 30.06
- Capsize Screening Formula
- 1.83
- Hull Speed
- 7.34 kn