Singapore's fourth Type 218SG submarine, seen here before its launch ceremony on 22 April 2024. (Singapore Ministry of Defence)

German shipbuilder ThyssenKrupp Marine Systems (TKMS) has launched the last of four Invincible-class (Type 218SG) air-independent propulsion (AIP)-equipped diesel-electric submarines (SSKs) on order for the Republic of Singapore Navy (RSN).

The vessel, which will be known in service as RSS Inimitable once commissioned, was launched on 22 April at TKMS' facilities in Kiel, Germany, the Singapore Ministry of Defence (MINDEF) announced in a statement on the same day.

Sonar 2087 (the variable depth towed body is pictured here) remains the RN surface fleet's principal long-range ASW sensor. SEA's software application is designed to automatically determine the optimum deployment depth of an active sonar projector and the receive array within the water column. (Richard Scott/NAVYPIX)

UK company Systems Engineering and Assessment (SEA) has been tasked to demonstrate a software application designed to enhance the performance of the UK Royal Navy's (RN's) principal surface ship anti-submarine warfare (ASW) sonar system.

Venezuelan Defence Minister Vladímir Padrino López inspects a CM-90 anti-ship missile. (Ministerio del Poder Popular para la Defensa (Venezuela))

The Venezuelan military confirmed on 16 April that it has the CM-90 export version of Iran's Nasir anti-ship missile (ASM).