🪵 Timber Raft on a River: Draught, Stability, Wind Drift and Sweep (2D)

Cross-section and top view of a river raft of floating logs. Set the number and size of the logs, wood density, load, load height, crosswind, sweep blade and flow speed, and see the draught, the freeboard, the metacentric height and righting arm, the sideways slip in the wind and how fast the sweep can move the raft across the channel. Archimedes, heeling stability, wind drift and sweep motion are checked numerically, with four in-page numerical checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install