Cassidian, the renamed defence and security pillar of EADS, has completed equipping German Navy ships with identification systems to avoid confrontations with unknown aircraft.

The latest identification friend or foe (IFF) technology has been fitted on all 12 frigates, five K130 Braunschweig Class corvettes and ten S143 fast patrol boats.

The MSSR 2000 I type systems use encryption technology in line with the mode S identification process for quick recognition of the approaching aircraft to prevent erroneous attacks.

IFF systems, also known as secondary radars, gather precise data about the origin, course and speed of individual aircraft by transmitting interrogation signals that are answered by transponders on board friendly aircraft.

Cassidian has delivered IFF systems to various Nato countries for sea and ground-based applications and has contracts for about 250 systems for 29 different countries.