The was the ship's backbone, usually a massive piece of elm or oak. From this, the sternpost and stem rose to define the profile. The frames (ribs) were then attached to the keel. In the 18th century, the "Great Age of Sail" saw ships like the HMS Victory utilize over 6,000 trees for a single hull, creating a structure thick enough to absorb the impact of 32-pounder cannonballs. The Skin: Planking and Caulking
The preferred choice for the hull due to its density and natural resistance to rot. "Compass timber"—naturally curved branches—was highly prized for the ship’s "knees" (the L-shaped brackets supporting the decks).
Often used in the British East Indies for its extreme durability and natural oils, making it almost impervious to wood-boring worms. Wooden Warship Construction: A History in Ship ...
These lighter woods were reserved for masts and yards, as their flexibility allowed them to bend under high winds without snapping. The Skeleton: Ribs and Keel
By the late 1700s, hulls were "copper-bottomed." This involved nailing thin sheets of copper over the wood to prevent the growth of barnacles and the destructive Teredo navalis (shipworm), which could otherwise eat through a hull in months. Structural Innovation: The Diagonal Truss The was the ship's backbone, usually a massive
To make the hull watertight, shipwrights hammered "oakum" (old, tar-soaked rope fibers) into the seams between planks.
The mid-19th century marked the end of the era. The introduction of explosive shells made wooden hulls vulnerable to fire and catastrophic failure. While "Ironclads" initially used wood as a backing for iron plates, the rise of all-steel hulls eventually relegated wooden warship construction to the annals of history. In the 18th century, the "Great Age of
As ships grew larger, they faced the problem of "hogging"—the tendency for the heavy bow and stern to sag while the middle of the ship rose. In the early 1800s, British naval architect revolutionized construction by introducing diagonal bracing. This turned the ship’s hull into a rigid girder, allowing wooden ships to reach lengths previously thought impossible. The Twilight of Wood