Science · 6 pages · 12 min
How displacement sets a hull in the water
The hull sinks until the water it pushes aside weighs the same as the boat.
When the purchase is complete, return to the original window. It will refresh.
From the opening
Displacement sets a hull in the water because the boat sinks until the buoyant force equals its weight. That force is the weight of the water pushed aside, so the underwater volume is fixed by the weight of the boat and the density of the water. The opening covers weight equals displaced water, why fresh water sits a hull deeper, and what hull shape does to draft.
The rest of the brief — the later sections and the reading notes — opens after Stripe confirms payment.
Inside
- Weight equals displaced water
- Why fresh water sits a hull deeper
- What hull shape does to draft
- Load lines as the legal mark
- Where the idea stops applying
- A distinction worth keeping
Sources
- Archimedes principle applied to draft
- The Plimsoll load line and the density of the water