Frahm anti-rolling tank
Tanque antibalance de Frahm
- Date
- 1909-1910 · confidence medium
- Place
- Hamburg, Germany
- Credited to
- Hermann Frahm (Blohm + Voss)
- Field
- Movement
What it is
A pair of side tanks joined by a pipe in which water oscillates out of phase with the ship's roll, counteracting the heel. It roughly halves roll and has no external moving parts.
What it led to
- more comfortable passenger ships in rough seas
- passive and active stabilisers
- liquid dampers in buildings