guns were retired by 1979, as their age was progressing. Also from FY1978 an Oerlikon 35 mm L/90 gun was substituted on ships replacing the Bofors 40 mm L/60 gun, and from the FY1979 ships forward, the JM61-M 20 mm rotary cannons were installed on MSA ships in lieu of the earlier Oerlikon 20 mm guns. In the beginning, only a few of the 35 mm guns had a limited remote control function, most of these guns were manually controlled. Then, full-scale remote operation and automatic tracking function were included in the guns mounted on the PLH Shikishima introduced in 1989. In addition, the 20 mm gun systems were added to the standard equipment list as JM61-RFS, and they have been mounted on many patrol vessels. And in order to counter the heavily armed North Korean naval trawlers in the event of an engagement, most recently PLs have been equipped with a 40 mm L/70 gun or 30 mm chain gun remotely controlled with an optical director. Personal weapons In the early days, MSA officers were issued WWII Nambu Type 14 semi-auto pistols and M1 rifles. From the 1960s, the old semi-auto Nambu pistols were replaced by newly built M60 revolvers. Some JCG security units have been equipped with modern Smith & Wesson Model 5906 TSW pistols. The M1 rifle was replaced after the 1960s and sailors of the JCG were issued Howa Type 64 rifles. From 1990, their weapons were updated again to the Howa Type 89 rifles. In addition to these automatic rifles, SST is equipped with Heckler & Koch MP5A5/SD6 submachine guns. The Howa M1500 has been adopted as a sniper rifle, and the SST has also adopted anti-materiel rifles manufactured by the McMillan Firearms. JCG museums Japan Coast Guard Museum – a museum dedicated to the Japanese Coast Guard in Kure, Hiroshima Prefecture. Japan Coast Guard Museum Yokohama – a museum dedicated to maritime security and the Japan Coast Guard. It is in Naka-ku, Yokohama, Kanagawa Prefecture. NYK Maritime Museum – dedicated to the maritime history of Japan and of the museum's operator, shipping company Nippon Yūsen Kabushiki Kaisha ("NYK Line") See also Japan Coast Guard Academy Big Joys, Small Sorrows Umizaru Umizaru 2: Test of Trust North Pacific Coast Guard Agencies Forum DAICHI (ALOS) References Sources Books Articles External links Official Site Official site JCG Academy Official Site Details of vessels on Thomasphoto Details of