Design and Construction
The Martin 243 is a monohull with a lifting keel, constructed of fiberglass with solid deck and hull cores. At 8.25 feet of beam and a 5.75-foot maximum draft, she is compact but carries her ballast sensibly for the weight class — the 29.66 percent ballast-to-displacement ratio and a displacement-to-length ratio of 46.83 place her firmly in the ultralight category monohull with a lifting keel. That lightness is the point: the 450-square-foot fractional sloop rig drives a boat that weighs less than many trailered dinghies, and the lifting keel lets her be dried out or trailered despite the racing draft.
Rig and Handling
Her fractional sloop rig and generous sail plan give the Martin 243 a sail-area-to-displacement ratio of 56.32, which explains the published verdict that she is a very high performer. She is reasonably stable and stiff, which matters in a boat this light, yet the same authority notes a poor ability to right herself after a knockdown and a capsize factor of 2.92 — figures that confirm her as a lively, upright-weather racer rather than an offshore cruiser. A comfort ratio of 5.62 and a hull speed of 6.56 knots round out a profile built for speed on flat water, not for motion comfort.
Accommodations
The Martin 243's recorded accommodation data is almost entirely unknown: headroom, cabin count, berth count, head count, and water capacity are all listed as unknown, and the single engine's total power and fuel capacity are likewise unrecorded. What the sources do establish is that she carries one engine and was built as a racing boat, so the interior is best read as a minimal shelter rather than a cruising layout.
Known Issues
The known constraints are performance-envelope ones: her low capsize screening and limited righting moment mean she demands a crew aware of her racing orientation.
The Verdict
The Martin 243 is a purpose-built ultralight racer of Canadian origin, designed by Don Martin and produced in a tiny series of fourteen from 1998. She rewards a racing-minded owner with a stiff, quick fractional sloop, but her capsize and righting figures set hard limits on where she should be sailed.
Pros
- Very high performance ultralight with a 56.32 sail-area-to-displacement ratio
- Reasonably stiff and stable for her weight class
- Lifting keel adds trailering and drying-out flexibility
Cons
- Low righting capability if capsized
- Capsize factor of 2.92 limits offshore suitability
- Accommodation and engine specs largely unknown
