Naval long gun

In historical naval usage, a long gun was the standard type of cannon mounted by a sailing vessel, so called to distinguish it from the much shorter carronades.

The long gun was known for its increased range and improved mobility in comparison to its larger precursors.

In informal usage, the length was combined with the weight of shot, yielding terms like "long nines", referring to full-length, 9-pounder guns.

Once the barrel is clean, the gunpowder is put into the base of the cannon, either loosely or in cloth bags.

The cannon is then pushed forward until it is in full contact with the side of the ship, and the barrel is pointed through the gun port.

This played a large part behind the purpose of the gun, which was to chase and pursue a fleeing enemy ship or fleet.