[5][6] Unidentified Flying Object won the Royal Yacht Squadron's de Maas Cup at Cowes in 1974 and many other races.

[2][7] This first yacht was designed for Richard Matthews by the British naval architects Holman and Pye[8] as a 32 ft prototype for the Three-Quarter Ton class in the International Offshore Rule.

[16][11] A UFO 34 based in Australia called Not Negotiable had a number of good results in offshore racing, including 2000 Melbourne–King Island.

[18] UFO 34s also had good results in the 1993 Fremantle to Lombok (Indonesia) yacht race with Amadeus winning IMS honours (1st overall) and Vela taking out the YAH trophy (1st overall).

[19] In May 1979 the UFO 34 Windrift of Clyde sailed from Scotland to Iceland and encountered severe weather conditions, estimated at a sustained 60 knots plus for over 24 hours.

[11] During the 1998 Sydney to Hobart Yacht Race the UFO 34 Not Negotiable experienced winds in excess of 65 knots (33 m/s, 118 km/h, 73 mph, Force 12) for approximately 6–8 hours.

[6] The main technique utilised was to "...keeping our nose into it and ploughing forward and just ducking and weaving around the worst of the waves worked for us fine".

[28] Note that this is similar to the successful storm tactics employed by the UFO 34 Windrift of Clyde when the yacht was actively sailed with the bow into the sea.