With a 23.7-foot waterline and displacement near 6,000 pounds, the Trapper 950 sits in the lower-displacement band for its size. Its figures point to a light coastal cruiser-racer and reward a careful look at the boat’s structure and balance.
Design and Construction
The hull is solid fibreglass, and the fin keel is iron—a straightforward combination for the period that keeps the underwater profile simple. Draft ranges from 5.18 to 5.48 feet depending on load, keeping the boat within most marina limits without a lifting arrangement. Alternative keel versions are noted, but their specifications aren’t documented in the available sources.
The beam is just over 10 feet, giving a length-to-beam ratio of 3.04. That relatively narrow section favours sea-kindliness over maximum bunk width. Wetted surface is about 322 square feet, while the displacement-to-length ratio is near 201. Together, these figures place the 950 firmly in the light-displacement cruiser-racer category rather than the heavy-bluewater mould.
The immersion rate is roughly 1,112 pounds per inch, so added cruising gear pushes the waterline down at a measurable, linear rate. That makes the effect of loading relatively predictable.
Rig and Handling
The Trapper 950 has a fractional sloop rig, and useful control-line specifications survive. The jib and genoa sheets are each estimated at 31.2 feet long and 1/2 inch in diameter. The mainsheet is estimated at 77.9 feet, while the spinnaker sheets are estimated at 68.6 feet and are also 1/2 inch in diameter.
Those lengths offer some practical clues about cockpit geometry and winch reach. A 77-foot mainsheet implies a long traveller or aft-led system suited to a 31-foot boom. The uniform 12 mm sizing points to lightly loaded, easy-to-grip controls rather than heavy-weather hardware.
The combination of fin keel, spade rudder, and narrow beam suggests a boat that responds quickly to the helm, consistent with its racing-derived parentage.
Accommodation
The available record covers the Trapper 950’s exterior and structural details rather than its interior arrangement. As a result, the accommodation layout remains undocumented in the available sources.
Verdict
The Trapper 950 is a Robert Humphreys evolution of the Mistral 31 half-ton racer, built with a solid fibreglass hull, an iron fin keel, and a fractional rig. Its light displacement, moderate wetted surface, and predictable immersion rate make it a straightforward coastal cruiser-racer with manageable numbers. The main gap in the available record is the interior arrangement.
Pros
- Robert Humphreys design with Mistral 31 racing lineage
- Solid fibreglass hull and iron fin keel
- Draft under 5.5 feet keeps the boat within most marina limits
- Predictable immersion rate of roughly 1,112 pounds per inch
Cons
- Interior arrangements are undocumented in the available sources
- Alternative keel versions are noted but unspecified
