METHOD OF FORCED LANDING OF HELICOPTER TYPE UNMANNED AIRCRAFT AT THE VESSEL LANDING PLATFORM Russian patent published in 2017 - IPC B64F1/08 

FIELD: aviation.

SUBSTANCE: method forced landing of helicopter-type unmanned aircraft (1) on vessel deck is in lining the speed and course of unmanned aircraft (1) with the vessel's speed and course. Further, unmanned aircraft (1) is stabilized at the point of suspension over the landing point on deck. Aircraft (1) and the vessel are connect with a bolsh rope (4), supplied either from the vessel or on board the unmanned aircraft. The free end of bolsh rope (4) is fixed in gripping mechanism (5) and the aircraft is drawn to landing platform (2) of the vessel. Landing rope (4) is wound on a retraction winch (3). Unmanned aircraft (1) is gone back to the stern with respect to the landing point so for bolsh rope (4) to deviate from the vertical to 45-55°, and braking force is produced, increasing the lift on the main rotor. Bolsh rope (4) during retraction is held inclined at an angle of 45…55° to the stern.

EFFECT: invention simplifies aircraft stabilization relative to the vessel deck, ensuring simultaneous equal displacement of the aircraft and the landing platform of the vessel deck.

2 dwg