List of longest wooden ships

This is a list of the world's longest wooden ships. The vessels are sorted by ship length including bowsprit, if known.
Finding the world's longest wooden ship is not straightforward since there are several contenders, depending on which definitions are used. For example, some of these ships benefited from substantial iron or even steel components since the flexing of wood members can lead to significant leaking as the wood members become longer. Some of these ships were not very seaworthy, and a few sank either immediately after launch or soon thereafter. Some of the more recent large ships were never able or intended to leave their berths, and function as floating museums. Finally, not all of the claims to the title of the world's longest wooden ship are credible or verifiable.
A further problem is that especially wooden ships have more than one "length". The most used measure in length for registering a ship is the "length of the topmost deck"—the "length on deck" —'measured from leading edge of stem post to trailing edge of stern post on deck level' or the "length between perpendiculars" —'measured from leading edge of stem post to trailing edge of stern post in the construction waterline '. In this method of measuring bowsprit including jibboom and out-board part of spanker boom if any have both no effect on the ship's length. The longest length for comparing ships, the total "overall" length based on sparred length, should be given if known.
Noah's Arc- 500 foot long, 50 feet high, 85 feet wide.
The longest wooden ship ever built, the six-masted New England gaff schooner Wyoming, had a "total length" of to tip of spanker boom and a "length on deck" of. The -difference is due to her extremely long jibboom of her out-board length being.

Longest wooden ships by ensign

Nationality

Navy

Length

Merchant

Length

Australia

City of Adelaide

74.4 m

Belgium

Claimed but poorly documented

Many ships have been claimed, so this list will exclude ships that the existence of most historians do not support, namely the Noah's Ark will not be included as a majority of biblical scholars do not take it as literal.

Length	Name	Completed	Notes
304.8 m	晉 Wang Jun's tower ship	3rd century AD	The largest of the armored floating fortresses that were used as flagships of river flotillas during the Han and Jin dynasties. According to the Tang dynasty's Taibai Jinjing, it was used on the Yangtze during the Jin conquest of Wu and was equipped with special hanging galleries to transport horses and war chariots. Though oar-powered only, tower ships tended to lose control when faced with wind changes, and this caused their abandonment.
144–180 m, or 88.56 m LOA and 80.51 m LOD.	Pati Unus's jong		Javanese seagoing junk type claimed to carry up to 1000 passengers. Though the early 16th century Portuguese did not record exact sizes, they remarked that the ships were so monstrously big that Flor do Mar and Anunciada did not seem ships when next to them. Irawan Djoko Nugroho estimate it to be 4–5 times the length of Flor do Mar, which was about 36 m long. His estimation has been contested as it is not based on engineering grounds, Muhammad Averoes estimated it with an LOA of 88.56 m and LOD of 80.51 m.
c., long	大明 Chinese treasure ship	15th century AD	The 18th century History of the Ming dynasty claims that the largest 15th century junks of the Ming emperors were more than long, and calculations based on 15+ ft stern rudder posts found have been used to claim total ship lengths of 400 to. However, this has been disputed. Xin Yuan'ou, a shipbuilding engineer and professor at Shanghai Jiao Tong University, argues that it is highly unlikely that Zheng He's treasure ships were 450 ft long, and suggests that they were probably closer to a most conservative estimate of 230–250 feet in length, other estimate were 309–408 feet in length and 160–166 feet in width.
	Tessarakonteres	Late 3rd century BC	A Greek galley with 40 lines of oarsmen, from which her name derives. It reportedly had an additional crew of 400 and could transport 2850 soldiers according to Athenaeus and Plutarch. She was built for Ptolemy IV Philopator. Modern naval engineers have speculated that the ship, of which there is no surviving depiction, had two twin hulls rather than one. According to Plutarch the ship proved difficult and dangerous to move during tests. As early as the 19th century, the dimensions of the ship have been contested since it caused several problems in terms of maneuverability and structural integrity.
or 70–75 m according to modern estimates	Leontophoros		A warship built for Lysimachos. After his death, it was used by Ptolemy Keraunos to defeat Antigonus I in a battle in 280 BC. The length estimate is based on Memnon of Heraclea's claim that each line had 100 oarsmen, bringing the total to 1600.
100 m length 17 m breadth	Cakra Dunia	Before 1629	Acehnese 98-gun galley class numbering 47 units. One captured by the Portuguese was renamed the Espanto do Mundo. Armed with 18 large cannons, 80 falcons and many swivel guns. It was claimed to have three masts with square sails and topsails, 35 oars on each side, and a crew of 700 men.
91.4 m long, 9.1 m wide, 6.1 m depth, 3.4 m freeboard	A gurap reported by H. Warington Smyth	Before 1902	A two-masted trading ship from the Nusantara archipelago, using fore-and-aft sail made with cloth, with yard and gaff topsail. It is built from giam wood.
long, high, and wide.	Ptolemy IV Philopator's thalamegos		A river going pomp boat of Ptolemy IV Philopator whose name translates to "Rooms Carrier". It is speculated that the ship had two hulls, with one single mast with a yard and sail, and is said to have been towed from the banks of the Nile.
c.	Hatshepsut's barge	c. 1500 BC	Used to transport obelisks. The barge may have been "too large to be equipped with a sail and not very manoeuvrable", and "would have been towed downstream by smaller vessels, also using the current, from Aswan to Thebes."
55 m long, 14 m wide	Syracusia	c. 240 BC	Claimed to be the largest transport ship in Antiquity. She was designed by Archimedes and built by Archias of Corinth on the orders of Hieron II of Syracuse. It sailed only once to Alexandria, Egypt, where it was gifted to Ptolemy III Euergetes and permanently berthed.
long, 13.7 m wide	Isis	c. 150 AD	Described by the sophist Lucian, who saw her moored at Athens' seaport of Piraeus.
	Ormen Lange		A Viking longship whose name translates as "Long Serpent", built for King Olav Tryggvason of Norway. It was said to be the largest and most powerful longship of the time.