Off Load Release Hook For Rescue Boat

When the load is released the hook shall open opening between 5 30 kg force.

Off load release hook for rescue boat. The d i davit international hische gmbh model olh 25 rescue boat off load hook is manufactured in accordance with the latest solas and med requirements. With a safe working load of 3 5tonnes the sla3 5 is perfectly suited for various types of liferafts rescue boats and their associated launching appliance and because of the inherent safety of the load over centre design it can only be released when the raft or boat is waterborne with little up to 150kg or no load on it. The safelaunch sla3 5 is an off load fall mounted automatic release hook for use with davit launched liferafts and single fall rescue boats. Lowering the boat is a very dangerous operation.

When waterborne the hook will automatically open and the rescue boat can sail away from the vessel. For decades this product has proven to be the most reliable best and safest launch and recovery lifting hook on the maritime market and still continues to live up to its reputation. Henriksen hooks are off load hooks meaning that the hook cannot release the boat until the boat is waterborne and thereby avoid dangerous and unintentional hook releases. On load release mechanisms for rescue boats which sets out the requirements for ships registered under its flag to ensure that on load release hooks fitted in rescue boats comply with the regulations applicable to conventional lifeboats.

The off load mechanism releases the boat after the load of the boat is transferred to water or the boat has been lowered fully into the sea. It is to be used with davit launched rescue life boats working boats or similar crafts can support a load of up to 2 5t 25kn and is easily to be handled by one person. Off load release mechanisms fitted in lifeboats and the automatic release hooks used for liferafts are designed to be operated opened when the load applied to them is removed ie when the boat or raft has been lowered and becomes waterborne. Hrn 28lt the off load release hook hrn 28lt is dimensioned to support the standard rescue boats with a maximum weight of 2 800 kg 6 100 pounds.

Common use is to pull the red hand grip during lowering. Small boat hook hrh the hrh 1 5 hook is the smallest quick release off load lifting hook. When we activate the off load release the hook shall not open with a load in the hook 30 kg. When the boat touches the surface of water the load on the fall and hence the hook releases and due to its mechanism the hook detaches from the fall.

The off load function is a result of the fundamental geometry of the hook making them inherently safe. On 24 june 2015 the maritime administrator of the republic of the marshall islands issued technical circular no 20.