The Hammar H20 hydrostatic release unit is designed for releasing liferafts. The release unit consists of a double looped white rope line, a release mechanism and a Red Weak Link (breaking strength 2,2 ± 0,4 kN). The white strong rope of Hammar H20 is secured to the deck or liferaft cradle and attached to the liferaft lashing with a sliphook. If the ship sinks, the water pressure will, within 4 metres, activate the sharp knife which cuts the white strong rope and the liferaft will float free. As the ship sinks, the liferaft painter line will be stretched and the liferaft starts to inflate. The Red Weak Link breaks and survivors can board the floating liferaft. Seen at METS 2011 RAI Amsterdam
S.J. de Waard
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>