Partisan is a well-proven Sigma 33, built in 1979 by Marine Projects to the David Thomas design. I have owned her since 2007, during which time she has been actively and successfully raced. She remains Sigma 33 One Design compliant, making her ideal for class racing or competitive club sailing. Key upgrades include a new mast, boom and gas kicker in 2007, a new plastic fuel tank (2007), new standing rigging in 2017, and the hull epoxied and faired in 2017. She is powered by a reliable Yanmar 2GM diesel engine. The Sigma 33 is renowned for its performance, strong build quality, and excell... read more

Sigma 33 designed by David Thomas Built 1980 by Marine Projects White GRP hull Used only for local club racing for past 4 years Boat presently out of water, relaunch end of April Lying Bangor , Co. Down... read more

Hey Jude is a well maintained & up together cruiser / racer. She has been lightly raced over her time but has been mainly used by us for cruising the south coast. She is an easy boat to sail & very forgiving to a newcomer to sailing or an up & budding racer, giving a comfortable safe sail with a good turn of speed in all aspects of the wind. Over my time of ownership I have worked hard to bring her up to be a reliable & safe boat which won’t let you down. She has had a new fully battened main in 2023 & a new head sail 2026.. 2 spinnakers & some older race sails... read more

2025 Class Championship Winning Sigma 33 “Insider” – For Sale Location: Ashore in Howth, Dublin Condition: Race ready for the 2026 season “Insider” is a proven race winner and the benchmark of a genuine dual purpose cruiser/racer. Fresh from winning the 2025 Class Championship, she is turnkey ready for competitive IRC or One Design racing while still offering all the comfort expected for enjoyable cruising. We have now purchased a new yacht, so “Insider” is ready for her next owner. Open to sensible offers— as running two boats is simp... read more

Leaky Roof 2 is a one of the last Sigma 33's built, yard no. A3345. In Immaculate condition. It has an excellent racing record, winning the national Championships 3 times. It has been very well looked after over the 16 years of our ownership. The boat has been continually upgraded throughout.... read more

"Miss Behavin" is a Sigma 33ood, designed by David Thomas and built by Marine Projects (Plymouth) Ltd.  They offer the ability to cruise and also do one design or handicap racing. There were over 400 built and were one of David Thomas's most successful designs. Accommodation is for 7, giving ample space for a family or racing crew. Miss Behavin is ready to set sail and has a suit cruising sails and a suit to go racing. Dimensions & general info.. - Beam - 3.20m (10'6") - Draft - 1.75m (5'9") - Displacement - 4309kg (9500lbs) - Ballast - 1575kg (3472lbs) - Builder - M... read more