(which is also referred to as HS-21) is a unit in the

Japanese Maritime Self-Defence Force The , abbreviated , also simply known as the Japanese Navy, is the maritime warfare branch of the Japan Self-Defense Forces, tasked with the naval defense of Japan. The JMSDF was formed following the dissolution of the Imperial Japanese Navy ...

. It is a part of the Fleet Air Force and comes under the authority of Fleet Air Wing 21. Equipped with Mitsubishi SH-60J & SH-60K

anti-submarine An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon ...

helicopters, it is based at

Tateyama Air Base is a military aerodrome of the Japan Maritime Self-Defense Force. It is located outside the city of Tateyama in Chiba Prefecture, Japan, at the southern tip of the Bōsō Peninsula.It also has a shorter runway because the airbase is only used ...

Chiba Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Chiba Prefecture has a population of 6,278,060 (1 June 2019) and has a geographic area of . Chiba Prefecture borders Ibaraki Prefecture to the north, Saitama ...

.Airborne Ocean Surveillance
Retrieved February 9, 2017

Squadron structure

The squadron is composed of two flights: * 211th Flight is equipped with SH-60J and SH-60K helicopters * 212th flight is equipped with only SH-60K helicopters

References

{{reflist Aviation in Japan Units and formations of the Japan Maritime Self-Defense Force Military units and formations established in 2008