Deck lock is one of several systems for automatically securing rotorcraft on the Helicopter decks of small ships.1
When the helicopter lands in such a way that the helicopter's harpoon is above the grid, the harpoon secures itself automatically to the grid through hydraulic actuators.
A deck lock system was in use by the Royal Navy with its Westland Lynx aircraft, and presently with its AgustaWestland AW159 Wildcat helicopters.
References
References
- "Rough Landings in High Seas". Think Defence. 2014-09-15. Archived from the original on 2015-07-20. Retrieved 2015-08-01.