The main principle of airbag ship launching is changing the force of sliding friction into rolling friction. The rolling resistance coefficients are important for calculation of ship launching with airbags. The mechanism of the resistance force during airbag rolling, is fundamentally different from the mechanism of rolling friction which occurs during rolling of the solid […]

We were told ship launching airbags can be used for many times with 5-8 years lifespan. But what is the criteria to judge one launching bag good or not good for using, when that bags may be 3 or 5 years old and got scars after several time using. And how can we achieve the […]

An old story but very successful application of using Evergreen salvage airbags to re float sunken ship is presented for people may be interested. Most contents and pictures are from Maud Returns Home The Maud, a Norwegian ice-faring ship built for the explorer Roald Amundsen, had been sitting in shallow water off the coast of northern […]

This article is a guidelines of repair big cuts on ship launching airbags, include repair tools,repair material, repair procedure and how to evaluate the repair result. Repair big cuts is quite different with repair holes on marine airbags. Here the big cut refers to thorough cut more than 10 cm length. In some extreme cases, […]

Evergreen Maritime got a contract from an Indonesian state owned shipyard, for providing package service for their ship docking projects. According to the contract Evergreen Maritime provides 30 pieces high performance ship launching airbags and the technical services include consulting, training and so on. Eversafe Marine engineering company as the subsidiary of Evergreen Group undertakes […]

Marine Structures are becoming bigger and bigger To carter to big marine constructions, the precast structures such as caissons, culverts, are becoming bigger and bigger in both weights and size. From 1990 years, the unit weight of concrete caissons for gravity wharf construction reach 1000 tonnes. Demands for transport heavy structures are increasing To handle […]