The 18-pounder long gun was an intermediary calibre piece of naval artillery mounted on warships of the Age of Sail. They were used as main guns on the most typical frigates of the early 19th century,
Louis-Philippe Crépin engraving of a French 18-pounder long gun being fired
Re-enactors dressed in American uniforms "load" an 18-pounder cannon at Yorktown National Park, United States
The Age of Sail encompasses the period of roughly 1571–1862, when large, sail-powered wooden naval warships dominated the high seas, mounting a large variety of types and sizes of cannon as their main
18-pounder long gun
…The 18-pounder long gun was an intermediary calibre piece of naval artillery mounted on warships of the Age of Sail. They were used as main guns on the most typical frigates of the early 19th century, on the second deck of…
The cannon shot (c. 1680), painted by Willem van de Velde the Younger
36-pounder long gun at the ready. The pointing system and accessories can be seen clearly