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553data points analyzed by Sailpages.com to compile this UFO 34 buyer’s report
UFO 34

UFO 34

Colvic Craft🇬🇧· Design: Holman & Pye
$29,968 avg$20,313 – $34,795 (3 listings)from 1973150 built
$1.9K – $5.1K est. annual maintenance
Offshore CruisermonoMasthead SloopFin
IOR 3/4 ton

Specifications

Hull

LOA33.33 ft
LWL28.08 ft
Beam11 ft
Draft5.5 ft
Displacement10,214 lb
Ballast5,510.5 lb
Hull speed1.34·√LWL7.1 kn

Rig & Sails

Iforetriangle height43.6 ft
Jforetriangle base14.14 ft
Pmainsail luff38.29 ft
Emainsail foot10.6 ft
FLforestay14.1 ft
Mainsail527.4 sq ft
Jib (100%)308.3 sq ft
Spinnaker524 sq ft

About the UFO 34

Based on IOR 3/4 ton racer. Molded by Colvic, this was the first yacht finished and sold by Oyster Marine Ltd. (more than 150 sold).

Performance

Comfort21.8
Capsize2.03
SA/Disp17.4
Disp/Len206
Bal/Disp54.0

ORC Performance Data(4 certificates)

Measured performance data from ORC (Offshore Racing Congress) certificates.

Polar Diagram

24680°30°60°90°120°150°180°WIND
4kn6kn8kn10kn12kn14kn16kn20kn24knbeat VMGrun VMG

Boat speed (kn) vs. true wind angle. Source: ORC

Racing Ratings

GPH699.7 s/miOSN671.3

Triple Number

LowMedHighOffshore0.75790.97691.0823Inshore0.59480.80500.9194

ORC Measured

Displacement5438 kg (11990 lb)Wetted surface23.0 m² (248 ft²)Stability index59.0

Sail Areas (ORC)

Main22.4 m² (241 ft²)Genoa39.9 m² (430 ft²)Spinnaker61.3 m² (660 ft²)Asymmetric18.1 m² (195 ft²)

Speed Table (kn)

TWA \ TWS468101214162024
52°3.64.85.66.16.46.56.66.76.6
60°3.85.05.86.36.56.76.86.86.8
75°3.95.16.06.46.76.87.07.17.2
90°3.85.05.96.56.76.97.17.37.5
110°3.75.16.06.66.97.27.37.67.8
120°3.64.95.96.56.97.27.47.98.2
135°3.24.55.56.36.77.07.37.98.6
150°2.73.84.95.76.46.87.07.68.3
Beat VMG2.33.13.84.24.54.74.74.74.7
Run VMG2.33.34.25.05.76.26.67.17.6

Estimated Value

Limited Data
Based on 2 listings
Low
$24,735
Estimated Value
$24,735
High
$24,735
Inflation-adjusted to 2026 USD

Estimated Cost of Ownership

Based on 33.33ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$1.9K – $5.1K
Hull, rigging, sails, engine service
Annual Docking
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Annual Insurance
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Known Issues & Pre-Purchase Inspection

We don't have enough data on the UFO 34yet to publish model-specific findings we'd stand behind — but here's a free general inspection checklist, built from our research into what actually goes wrong on boats of this kind.

Drawn from 7,029 documented issues across 2,391 models, ordered so the areas that most often turn up problems come first.

1Structural & Bulkheads9732Standing Rigging6403Deck & Topsides6404Keel & Keel Bolts5535Rudder & Steering5086Hull & Bottom377
Free general pre-purchase checklist
25 survey areas — hull, keel, rig, engine, electrical and more. Take it aboard when you view any boat.

Own a UFO 34? Reports from owners are what turn this into a model-specific checklist — and they're the reason the boats above it have one.

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Which engine powers your UFO 34?

We haven't confirmed the engine for this model yet. If you own or know one, tell us — as owners report in, we build an accurate picture over time.

Already know your engine? Search all engines → to find its exact parts.

Used sails that fit the UFO 34

Checking eBay for sails sized to this boat's rig…