Welcome to
Ultra Electronics
Command & Sonar Systems

Underwater Warfare

Airframe Locator Beacon

Based on the success of the original Ultra Electronics Sonar Locator Beacon (SLB), Ultra has developed its latest SLB-90 device to meet ARINC 677 2015 (ICAO Annex 6 Amendment 36).  With automatic initiation upon immersion in either salt or fresh water, the SLB-90 transmits an underwater acoustic signal for underwater airframe location. This can be detected by any suitable commercial receiver, in addition to Ultra Electronics SSQ- 906G LOFAR (omnidirectional) & SSQ-963D CAMBS (directional) Sonobuoys.

Back to Products Back to Underwater Warfare

Get in touch