Hashima-class cable layer

The Hashima-class cable layer (初島型電纜敷設艇,) was the only class of purpose-built cable layers of the Imperial Japanese Navy (IJN), serving during World War II. Four vessels were built in 1939–41 under the Maru 4 Programme.

Apart from laying communications cables, these ships were also designed as mine planters, for the installation of controlled mines in coastal fortifications.

Ships in class
Project number J21.