Notes: Vandestadt & McGruer was the Canadian importer of the American built MacGregor line of trailerable sailboats in early 1970s. The company also built the SIREN 17. \nThe SIRIUS 21 hull was modified to include a reverse sheer transom at which point the boat was renamed the SIRIUS 22. \nA fixed-keel model was also offered.\nHeadroom increases to 6.25 ft / 1.9 m with the pop-top up.\nSail Area:\n-Mail: 93 ft² / 8.64 m² \n-Jib: 110 ft² / 10.23 m²\n-Genoa: 156 ft² / 14.5 m²