How Helicopters Land On Military Ships
The First Helicopter To Land On A Ship
In some helicopters, the landing part includes a special device that provides a connection (wire) between the deck and the helicopter (underneath it), just before landing. This device is a construction of the Royal Canadian Navy with the name 'Beartrap.' The equivalent device, of the US Navy, bases its technology on the Canadian one and has the name 'RAST.' The Navy has integrated the device in the Light Airborne Multi-Purpose System (LAMPS) Mk III.
Besides the stability and precision, another purpose of the device is to stabilize the electric potential between the helicopter and the military ship. The helicopter's rotors can create huge electric charges and furthermore cause fatal damage in crew members that may touch the helicopter while landing.