Snoop Series**

The Snoop series of I-band, submarine mast-mounted surface search radars have been fitted to multiple Russian/Soviet submarine classes.

See “Variants,” below, for details.

Initial operational capability (IOC) was reached in early 1950s in subs of the Whiskey** class.

 Algeria
  submarines              RAIS HADJ M'BAREK class (Snoop Tray)
 China
  submarines              HAN class**          (Snoop Tray)
                          XIA class**          (Snoop Tray)
              ...