Military Periscope Logo


Country of Origin: USA


The AN/SQR-18 series began with the SQR-18 interim escort towed-array surveillance system (IETASS) that was developed to be a simpler version of the AN/SQR-14/15 long-range towed arrays for frigates and minesweepers.

The escort towed-array sensor (ETAS) program was established in FY 1975 after the IETASS had been tested on U.S. KNOX-class frigates and a minesweeper. In turn, the tactical towed-array sonar (TACTAS) programs were developed from the ETAS.

The IETASS (SQR-18)...

Please log in to continue reading.

Not yet a subscriber? Take a free trial.

Military Periscope gives you easy-to-use, integrated, open-source intelligence on…

  • More than 7,500 weapons systems and platforms
  • Nearly every country's armed forces
  • Militant organizations
laptop image

Try Military Periscope free for seven days

Military Periscope Logo

Your online source for military news, weapons, and nation's armed forces worldwide

Military Periscope FEDLINK information

Service ID: UC

Contract Number: LCFDL24D0002

Military Periscope is a product of GovExec.

600 New Hampshire Ave., Suite 510,

Washington DC, 20037, USA.

©Military Periscope 2024

All rights reserved. Redistribution of the content is prohibited without prior consent of Military Periscope.