The Bertram 61 Convertible is a 18.64-metre current production model in Bertram's Offshore Series. Official specifications give a 5.56-metre beam and 1.52-metre draft.
Bertram lists Twin CAT C32 Acert 1925 mHP diesel engines. Full-load displacement is approximately 41.28 tonnes, fuel capacity is 6,443 litres and fresh-water capacity is 1,060 litres.