BlueWhale (UUV)


The BlueWhale, designated ELI-3325, is an unmanned underwater vehicle manufactured by the Israeli defense firm ELTA Systems. It is used to gather information using radar, SIGINT and communications technologies. It made its public debut at the International Maritime Defence Exhibition Asia 2025 defence expo in Singapore on 6-8 May 2025.

Mission

It is used for intelligence gathering, surveillance and reconnaissance, including covert operations in coastal areas, anti-submarine warfare - hunting submarines in its own territory, acoustic reconnaissance, covert mine detection and other mine countermeasures, support to special forces including reconnaissance and mine detectors, reconnaissance and patrol for conventional submarines, intelligence on piracy, terrorism, and illegal migration, and is intended to support maritime expeditions.

Technical data

The boat is 10.9 meters long and weighs 5.5 tons. It sails silently and stays at sea for up to four weeks. It travels at 7 knots underwater, dives 300 meters deep and carries a watertight patented mast for surface payload. The mast can carry antennas, including SATCOM, for real-time data link with mission control.
Possible payloads:
  • Radar
  • day/night EO/IR
  • COMINT/ELINT/ESM
Underwater sensors:

Operational history

The BlueWhale UUV performed several tests and demonstrations with Israeli and foreign naval forces, including a first demonstration to Portuguese Navy and NATO naval forces during the annual . It also underwent a comprehensive operational evaluation with the in the Baltic Sea in late 2024. In May 2025, IAI and HAI signed an .