The Japanese patrol boat Mizuho is a PLH type patrol vessels of the Japan Coast Guard.

[1] Essentially, this ship is designed to be an enlarged version of the Kunigami class, with a helicopter deck and hangar as a successor to Mizuho (PLH-21).

[2] As well as being a platform for helicopters, she also functions as a depot ship: replenishing fuel, potable water and stores to small patrol crafts and resting their crew.

[1][3] She is armed with one Bofors L/70 40 mm gun (Bofors 40 Mk4) and one JM61-RFS 20 mm gun, each controlled by an electro-optical director.

This article about a specific military ship or boat of Japan is a stub.