SSK Tupi Class

The radar warning receiver on the Tupi and the Improved Tupi (Tikuna) is the DR-4000.



  • Brazilian Navy submarine Tupi (S30)
  • radar warning receiver on the Tupi Brazilian attack submarine
  • Naval officer using a mod 76 periscopes
  • Emerging SSK Tupi Class Attack Submarine
  • Close up of the SSK Tupi Class Attack Submarine
  • A Brazilian SSK Tupi Class Attack Submarine during diving