Ankara, Turkey – The first international order of the Zoka acoustic torpedo developed by Aselsan was delivered.

The “Zoka-acoustic torpedo countermeasures and decoys” purchased by the Indonesian Navy from Aselsan reportedly reached the country.

The Zoka-acoustic torpedo countermeasures and deceptions, which Indonesia purchased from Aselsan, reached the country. Zoka’s delivery to Indonesia was completed on October 22, according to a source from the defense industry, Jane’s, the publishing agency for military matters, citing.

The order, which includes agitators and decoys to be used on Nagapasa-class (Type 209/1400) submarines, which are in the inventory of the Indonesian Navy Command, was announced in March 2019. This order was the first foreign order developed by Aselsan for the ZOKA agitators and decoys used on all submarines in the Navy.

Developed by Aselsan, Zoka agitators and decoys can be used effectively against all torpedo threats that can operate in active, passive or combined Mode with acoustic guidance.

Indonesian mooted shipbuilding firm PT PAL will work with Aselsan engineers to integrate Zoka into the three Nagapasa-class platforms. The National agitator and deceptive system developed by Aselsan, Zoka, serves on all submarines in the Turkish navy.

Zoka Acoustic Torpedo
Plummet agitators and decoys have properties that will be effective against all torpedo threats that can operate in active, passive or combined Mode with acoustic guidance. It is used in the Hizir above-water torpedo countermeasure system and Zargana submarine torpedo counter systems, and in both systems there are two different types and different sizes of plummet agitators and Deceptors, including deceptive and Mixer.

Plummet mixers broadcast wide-band high-level noise to cover the acoustic operating frequency range of torpedoes. In this way, they mask submarine noise against passive torpedoes and increase ambient noise against active torpedoes, reducing the detection distance of the signal reflected from the submarine. The ploy Deceptors, on the other hand, imitate the acoustic and dynamic characteristics of the platform, misleading the torpedo and pulling it on itself. Deceptors have the function of simultaneously generating ship noise and responding to the active torpedo broadcast while listening with their hydrophones pulled behind them.