Design and Lineage
Holman & Pye laid down a masthead-sloop hull of moderate racing pedigree rather than a pure cruiser. At 34'4" overall with a 28'1" waterline and an 11-foot beam, the boat carries a length-to-beam ratio of 3.13 and a displacement-length ratio of about 215, a figure that places her among what yachtdatabase.com terms "moderate racers". The ballast ratio sits near 52 percent, with an iron fin keel and spade rudder below a solid fiberglass hull. Well over a hundred were built, mostly in the UK, with fewer than 200 in total and a few also built in Australia. Her capsize screening value of 1.98 meant that by that single formula she could be accepted for ocean racing, and her motion comfort ratio of 22.2 to 23.1 describes a settled sea manner for a boat of this size.
Construction
Both hull and deck are solid fiberglass, and the production boats received custom joinery in the fit-out. Because the UFO 34 was also sold as a home-completed kit, the quality of finish and structural follow-through can vary from one example to the next. That variation is the one construction caveat a buyer or reviewer must keep in view: a professionally finished UK hull and a backyard completion are not the same object even though they share the Colvic mold. The wetted surface runs about 365 square feet, and the immersion rate is roughly 1,080 pounds per inch, so she settles predictably under load.
Rig and Handling
The masthead rig carries a sail-area-to-displacement ratio of 16.0 on the ISO reference sail and 19.3 with a 135% genoa, yet a comparative review found she has more rig than only 27 percent of similar sailboats and is therefore slightly underrigged. Her calculated maximum speed is about 7.0 knots against a theoretical displacement-hull speed of 7.1. The standing and running rigging follow predictable masthead dimensions: mainsail, genoa, and spinnaker halyards are all 100 feet of 3/8-inch line, while sheets run 34 to 86 feet in 1/2-inch diameters. With a draft quoted by the builder at 6'0" and by the review at 6.17 to 6.47 feet dependent on load, she is a marina-depth boat rather than a shoal-water cruiser.
Accommodations
The production layout provides three cabins and sleeps six guests, with the custom joinery giving each finished boat a slightly individual character. That plan, combined with the 11-foot beam, makes for a practical coastal and offshore interior volume in a 34-foot hull, though the exact berth arrangement is left to the joiner rather than standardized across the class.
The Verdict
The UFO 34 is a Holman & Pye cruiser-racer with a genuine race-winning prototype behind it, a moderate-displacement hull that sits comfortably between cruiser and club racer, and a build story complicated by home-completion kits. For a sailor wanting a classic 1970s British 34-footer with custom interior work and ocean-race screening numbers, she rewards careful individual inspection.
Pros
- Proven race pedigree from the 1974 prototype
- Moderate racer proportions with 52% ballast ratio and ocean-race capsize screening value
- Three-cabin, six-guest layout with custom joinery
Cons
- Home-completed kits mean variable quality between boats
- Slightly underrigged against peers; marina-only draft approaching 6'6" loaded









