 Between 1764 and 1809 , Sweden built six hemmemas . The hemmema became the largest and most heavily armed vessel in the archipelago fleet and served in the Russo @-@ Swedish War of 1788 – 90 . Oden , the first hemmema , was relatively small and very similar to a turuma , a different type of " archipelago frigate " . Russia built six hemmemas based on the Swedish design between 1808 and 1823 after capturing three of the Swedish vessels at the surrender of Sveaborg in 1808 . The later versions , both Swedish and Russian , were much larger and much more heavily armed than Oden . 
