C&C Invader 36 Information, Review, Specs

C&C Invader 36 Drawing
Make
C&C
Model
Invader 36
Builder
Hinterhoeller Yachts Ltd.
Designer
C&C
Number Built
24
Production Year(s)
1965 - 1968

The C&C Invader 36 represents a foundational chapter in the history of North American production boatbuilding. Launched in the late 1960s, specifically around 1968, the Invader 36 was designed by the prolific duo of Cuthbertson & Cassian and primarily constructed at the Belleville Marine Yard in Ontario. This was a pivotal era just before the formal 1969 merger that created C&C Yachts, meaning the Invader carries the DNA of the brand’s "classic" period—a time when hulls were characterized by substantial displacement, elegant overhangs, and a transition from traditional full keels to more modern underbody configurations. Unlike the light-displacement racers that would later define the C&C brand in the 1980s, the Invader 36 is a robust, ocean-capable cruiser with a traditional aesthetic that appeals to sailors seeking a sturdy, predictable platform.

Sailing Performance & Handling

Under sail, the Invader 36 behaves with the deliberate grace typical of late-1960s cruiser-racers. Its hull form features a relatively narrow beam compared to modern standards and a significant "cutaway" keel—a design choice that reduces wetted surface for better light-air performance while retaining the tracking stability of a full-keel vessel. This configuration, combined with a spade rudder, gives the Invader a surprisingly nimble feel for a boat of its displacement.

Because the boat was designed during the transition from the CCA (Cruising Club of America) to the IOR (International Offshore Rule) eras, it emphasizes a balanced helm and sea-kindliness over raw downwind speed. Historical accounts from the era suggest the Invader 36 is a "stiff" boat, meaning it stands up well to its canvas in a breeze and does not heel excessively or "round up" when hit by gusts. While it lacks the surfboard-like planing capabilities of later C&C models like the 35 MkII, it offers a much softer motion in a head sea, making it a preferred choice for coastal cruising and offshore passages where comfort is paramount.

Interior Comfort & Variations

The interior of the Invader 36 reflects the high-quality joinery and woodworking standards of the Belleville Marine Yard. The cabin is dominated by rich mahogany or teak bulkheads and trim, creating a warm, traditional atmosphere. The layout typically features a V-berth forward, followed by a head and hanging locker. In the main salon, a drop-leaf table is flanked by settees, with the galley located aft near the companionway for optimal ventilation.

A key sibling model to the Invader 36 is the Frigate 36. While the Invader features a fixed keel with a draft of approximately 4’9”, the Frigate 36 was built on the same hull but utilized a centerboard. This variant was specifically targeted at sailors in shallow-water regions like the Chesapeake Bay or the Bahamas, allowing for a minimum draft of roughly 3’7” with the board up. Additionally, some versions of the Invader were finished with slightly different cockpit configurations or interior cabinet arrangements depending on whether they were ordered for racing or extended family cruising.

Known Issues & Buyer’s Checklist

Purchasing a vessel of this vintage requires a discerning eye for structural integrity, particularly regarding the materials used during the early fiberglass era.

  • Deck Core Integrity: Like many early C&C designs, the Invader 36 utilized a balsa-cored deck. Buyers should use a plastic hammer for percussion testing or a moisture meter to check for soft spots, particularly around stanchion bases, chainplates, and the mast step. Delamination in these areas is a common age-related issue that can require expensive "drill and fill" or skin-replacement repairs.
  • Chainplate Leaks: The stainless steel chainplates that support the rig are known to leak if the sealant is not periodically refreshed. If neglected, this water ingress can rot the wooden bulkheads to which the chainplates are bolted, compromising the structural rig tension.
  • Original Engines: Many Invader 36s were originally equipped with the Universal Atomic 4 gasoline engine. While these are reliable if well-maintained, many owners prefer to see a modern diesel conversion (such as a Yanmar or Beta Marine) for improved safety and fuel economy.
  • Rudder Post and Bearing Wear: The spade rudder on the Invader is a high-load component. Inspect the rudder post for any "slop" or movement within the bearing housing, which can indicate worn bushings or internal corrosion of the rudder's internal frame.

Community & Resources

The primary hub for technical support and historical data for this model is the C&C Photo Album & Resource Center, a volunteer-led archive that preserves original brochures and owner manuals for legacy Cuthbertson & Cassian designs. While no longer an active manufacturer, the spirit of the Invader 36 is kept alive through various C&C owner associations across the Great Lakes and the New England coast, where these boats are still frequently seen in classic yacht regattas.

The Verdict

The C&C Invader 36 is a "sailor’s sailboat," offering a bridge between the heavy-displacement wooden yachts of the past and the high-performance fiberglass designs of the future. It is best suited for those who value classic lines and a heavy-weather pedigree over modern interior volume.

Pros

  • Exceptional aesthetic with classic "plastic classic" lines and substantial woodwork.
  • Predictable and stable handling in heavy seas.
  • High build quality from the renowned Belleville Marine Yard.
  • Draft options available via the Frigate 36 centerboard sibling.

Cons

  • Interior volume and "openness" are limited compared to modern 36-footers.
  • Likely to require significant maintenance or upgrades to balsa-cored decks.
  • Performance in very light winds may be sluggish compared to newer fin-keel designs.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x —
Ballast
3800 lbs
Displacement
10550 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
35.75 ft
Waterline Length (LWL)
24.25 ft
Beam
9.16 ft
Draft
5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
32.67 ft
E (Main Foot)
15.25 ft
I (Foretriangle Height)
37.58 ft
J (Foretriangle Base)
13.58 ft
Forestay Length (est)
39.96 ft
Sail Area
529 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
17.59
Ballast / Displacement Ratio
36.02
Displacement / Length Ratio (D/L) Ratio
330.27
Comfort Ratio
30.8
Capsize Screening Formula
1.67
Hull Speed
6.6 kn