A hemmema had the potential to be an effective weapon against galleys, matching their forward firepower and severely outgunning them with its broadside armament. Inside an enemy galley formation, it could wreak considerable havoc, but such a maneuver was never achieved in an actual battle, leaving that tactical role untested. A total of twelve hemmemas were built, six of them for the Swedish archipelago fleet and six for the Russian Navy. Details of individual vessels are listed below. The Swedish hemmemas were all built to the same specifications, except for the early design "Oden", and "Birger Jarl" and "Erik Segersäll" carried heavier armament than the others. Tredrea and Sozaev list "Oden" as a turuma rebuilt as a hemmema in 1784, though Oscar Nikula and Lars-Otto Berg do not. The Russian vessels were built between 1808 and 1823 and have been described by Tredea and Sozaev as "Bodryi"-class "rowing frigates". Under the Finnish form "Hämeenmaa", the name of the ship type was later carried on to several vessels of the 20th century Finnish Navy.