The Ontario Mark 25 is a distinctive compact sailboat, designed by the renowned George Cuthbertson of Motion Designs Limited and built by Canada's Ontario Yachts. Introduced in 1984, this 24.58-foot fractional sloop was conceived to offer a spirited sailing experience in a smaller package, appealing to weekend cruisers and day sailors alike. With only 17 units produced, the Mark 25 represents a niche offering from a builder celebrated for its quality composite construction.
Mark 25 Information, Review, Specs
- Make
- Model
- Number Built
- 17
- Production Year(s)
- 1984 - ??
The Mark 25 entered production in 1984, emerging from the design office of Motion Designs Limited, founded by the highly influential naval architect George Cuthbertson. Cuthbertson, a founding partner of C&C Yachts, established Motion Designs Limited in 1979 after his departure from C&C, aiming to create boats with a "fresh look." The Mark 25 was among his early projects under this new venture, showcasing his ongoing commitment to innovative yacht design.
The construction of the Mark 25 was undertaken by Ontario Yachts, a Canadian builder with a rich history dating back to 1961. Initially focusing on wooden dinghies, Ontario Yachts, under the guidance of Dirk Kneulman Sr., transitioned to fiberglass construction, quickly establishing a reputation for high-quality composite boat building. This expertise ensured that the Mark 25, like other vessels from Ontario Yachts, benefited from robust construction methods. While Ontario Yachts built the initial Mark 25s, some units were also produced by Eli Laminates in the USA. A notable variation for the model included a shoal draft option of 3.0 feet.
Sailing Performance and Handling
As a fractional sloop with a length overall of just under 25 feet, the Mark 25 is designed for nimble handling and engaging performance. While detailed anecdotal reviews specifically for the Mark 25's handling are limited, its design lineage from George Cuthbertson suggests an emphasis on responsive and enjoyable sailing characteristics. Cuthbertson's designs are generally associated with spirited performance, as reflected in other Ontario Yachts models known for combining performance with practical layouts. The fractional rig design typically allows for finer tuning of sail shape, contributing to efficiency and control, especially upwind.
Accommodations and Layout
Information regarding the specific interior accommodations and layout of the Mark 25 is not extensively detailed in readily available public records. The design likely offers a functional, albeit compact, interior suitable for overnight stays or weekend cruising, typical for a sailboat of its size. Standard amenities would generally include a V-berth forward, a small galley area, and a basic head compartment. Details on finish quality, use of materials, storage, and ventilation specific to the Mark 25's interior would require direct knowledge from owners or a comprehensive review, which is not currently available through grounded search.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Solid)
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Transom-Hung
- Ballast
- 1779 lbs
- Displacement
- 4130 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Engine
- Engine Make
- —
- Engine Model
- —
- Engine Type
- —
- Engine HP
- —
- Engine Count
- 1
- Drive Type
- —
- Fuel Type
- —
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- 37 ft
- E (Main Foot)
- 12 ft
- I (Foretriangle Height)
- 28 ft
- J (Foretriangle Base)
- 7.7 ft
- Forestay Length (est)
- 29.04 ft
- Main Sail Area
- 222 sqft
- Foretriangle Sail Area
- 107.8 sqft
- Total Sail Area (Reported)
- 330 sqft
- Total Sail Area (Calc)
- 329.8 sqft
Dimensions
- LOA
- 24.58 ft
- LWL
- 20 ft
- Beam
- 9.25 ft
- Draft
- 4.25 ft
- Max Headroom
- -
- Air Draft
- -
Calculations
- Hull Speed
- 5.99 kn
- Pounds per Inch Immersion
- 661.03