
A hemmema was a type of warship built for the Swedish archipelago fleet and the Russian Baltic Fleet in the late 18th and early 19th centuries. The hemmema was initially developed for use against the Imperial Russian Navy in the Archipelago Sea and along the coasts of Svealand and Finland. It was designed by the prolific and innovative Swedish naval architect Fredrik Henrik af Chapman (1721–1808) in collaboration with Augustin Ehrensvärd (1710–1772), an artillery officer and later commander of the Swedish archipelago fleet. The hemmema was a specialized vessel for use in the shallow waters and narrow passages that surround the thousands of islands and islets extending from the Swedish capital of Stockholm into the Gulf of Finland.

Kalmar Nyckel was a Swedish ship built by the Dutch famed for carrying Swedish settlers to North America in 1638, to establish the colony of New Sweden. The name Kalmar Nyckel comes from the Swedish city of Kalmar and nyckel meaning key in Swedish. The name was also a tribute to Kalmar Castle which was a symbol of power during the time of the Swedish Empire when Sweden was a military great power. A replica of the ship was launched at Wilmington, Delaware, in 1997.

Mars, also known as Makalös, traditionally referred to as Jutehataren, was a Swedish warship that was built between 1563 and 1564. She was the leading ship of King Eric XIV of Sweden's fleet, and at 70 meters and equipped with 173 guns, was one of the largest warships of the time, even larger than the famous Swedish ship Vasa. In 1564, during the Northern Seven Years' War, she caught fire and exploded during the First battle of Öland in the Baltic Sea.
A pojama or pojema was a type of warship built for the Swedish archipelago fleet in the late 18th and early 19th centuries. It was developed for warfare in the Archipelago Sea and along the coasts of Svealand and Finland against the Russian navy. The pojama was designed by the prolific naval architect Fredrik Henrik af Chapman for use in an area of mostly shallow waters and groups of islands and islets that extend from Stockholm all the way to the Gulf of Finland.

Resande Man was a Swedish warship that sank on 26 November 1660 in the Stockholm archipelago. 25 people survived the sinking while 37 people died. The ship was 27 meters long and had 22 cannons.

A turuma was a type of warship built for the Swedish archipelago fleet in the late 18th century. It was specifically developed for warfare in the Archipelago Sea and along the coasts of Svealand and Finland. The turuma was designed by the prolific naval architect Fredrik Henrik af Chapman for use in an area of mostly shallow waters and groups of islands and islets that extend from Stockholm all the way to the Gulf of Finland.

An udema, also udenma, was a type of warship built for the Swedish archipelago fleet in the late 18th and early 19th centuries. It was developed for warfare in the Archipelago Sea in the Baltic and along the coasts of Svealand and Finland against the Russian navy. The udema was designed by the prolific naval architect Fredrik Henrik af Chapman for use in an area of mostly shallow waters and groups of islands and islets that extend from Stockholm all the way to the Gulf of Finland.