The global security environment under the new situation has put forward new mission requirements for the navies of various countries. As the focus of underwater operations shifts from traditional "blue water" missions to coastal operations, the concept of submarine warfare has undergone far-reaching changes, and the technical requirements and operational capabilities of conventional submarines have also changed with each passing day. The role of traditional conventional submarines is to collect intelligence and use torpedoes to attack surface/underwater targets. At present, a new generation of conventional submarines with brand-new performance have been in service or under construction in many countries. They will be given new missions and perform more extensive new tasks. Looking to the future, more and more conventional submarines with technological breakthroughs will be presented to the world.
To this end, we have specially planned the special topic "the development trend of conventional submarine" By analyzing the technological development of conventional submarines in the past decade, studying the selection of AIP power systems and the application of lithium batteries, and analyzing typical modern conventional submarines in Germany, Japan, the Netherlands, Iran and other countries, we present to readers the appearance and equipment of the new generation of conventional submarines in various countries.