Davit launched liferaft and hydrostatic released unit 🛟 davit-launched life raft, in conjunction with a hydrostatic release unit (HRU), is a system for deploying a life raft in an emergency. The HRU ensures the raft is automatically released when the vessel submerges, while the davit is used for manual deployment, especially if the HRU doesn't trigger. The Hydrostatic Release Unit (HRU): The HRU is a device that automatically cuts the safety straps holding the life raft container to the ship wh