Lengthening the Keelson: Heavy Structural Engineering on a 115ft Viking Ship @DrakenHH
Lengthening the Keelson: Heavy Structural Engineering on a 115ft Viking Ship  @DrakenHH
Uploaded November 2015 | Updated September 2026, 3 days ago
Lengthening the Keelson: Heavy Structural Engineering on a 115ft Viking Ship #ShipBuilding #HeavyEngineering #TraditionalCraftsmanship

To prepare Draken Harald Hårfagre for the unforgiving conditions of the North Atlantic Ocean during Expedition America 2016, the shipwrights had to execute a massive internal reinforcement project: lengthening and strengthening the keelson. Please visit our website for more information: drakenhh.com

The keelson acts as the internal spine of the vessel, sitting directly above the keel to bind the floor timbers together and distribute the immense forces generated by the mast and sail. This video documents the heavy, precise marine carpentry required to upgrade the structural backbone of the world's largest modern Viking ship.

What this structural engineering footage highlights:
The process of lengthening a massive piece of oak timber to extend the ship's internal reinforcement.
How shipwrights align and secure heavy structural timbers to handle the twisting forces of rough seas.
Meticulous hand-shaping and fitting of fresh oak beams to seamlessly integrate with the existing historical framework.
The vital engineering upgrades necessary to safely transition the 35-meter longship from coastal waters to a full transatlantic crossing toward Iceland, Greenland, and North America.

Every layer of wood added to the internal spine increases the hull's resistance against the massive rolling swells of the open ocean, protecting both the ship and the crew.

🔔𝐃𝐨𝐧'𝐭 𝐟𝐨𝐫𝐠𝐞𝐭 𝐭𝐨 𝐬𝐮𝐛𝐬𝐜𝐫𝐢𝐛𝐞 𝐭𝐨 𝐨𝐮𝐫 𝐜𝐡𝐚𝐧𝐧𝐞𝐥 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐮𝐩𝐝𝐚𝐭𝐞𝐬.
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Lengthening the Keelson: Heavy Structural Engineering on a 115ft Viking Ship
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Lengthening the Keelson: Heavy Structural Engineering on a 115ft Viking Ship

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