Goliath Rescue Stent is a new auxiliary landing gear designed specifically for helicopters. It can assist helicopters to adapt to all kinds of complex landing sites. The four "webbed" mechanical foot hydraulic devices installed in the lower part of the helicopter can be freely adjusted the angle, direction and height to keep the helicopter in a state of level all the time. The landing gear has a strong grip and adaptability to help helicopters cope more complex tasks. I n addition, when the helicopter is about to lose control, the landing gear can absorb part of the impact force and prevent helicopter rollover and reduce casualties.