Lots of big or small ship launching accidents are caused by less attention to ship holding system that include ground anchor , winch, pulley, wire ropes and shackles. In the below case people employed a bulldozer to hold the ship, without suspense the bulldozer was launched into water with the ship.

Airbag ship launching is flexible. It has tolerance for the water deficiency but that tolerance has limit surely. If ships are launched at deficient water, two phenomena may happen: when the stern drops abruptly, airbags may burst or launch ramp end collapse due to strike moment then vessel bottom...

Nowadays ship launching with airbags is not a novelty. Estimated in China every years there are about 200 vessels have been launched with airbags. Airbag ship launching technology is simple and practical, it can save much money and time.

Marine airbags are often called ship launching airbags that indicates they are most used for launching ship into water. Inspired by ship launching, people developed many applications of marine airbags in different fields, the most remarkable one is heavy lifting and moving with marine airbags.

The purpose of installing fenders on the pier is to protect the vessel and the pier from damage when the vessel berths alongside the pier. The fenders absorb the berthing energy of the vessel and soften the berthing impact on the pier.