Tods Defence, a Unitech Aerospace company, is to provide the Norwegian Defence Material Agency (NDMA) with upgraded sonar domes for the Nansen-class frigate in service with the Royal Norwegian Navy.

“Tods Defence is proud to continue their long association with the Nansen-class frigate. We had the honour of designing and building the original five sonar domes with the first of class being delivered in 2004,” Peter Eckersall, Vice President and Managing Director for Tods Defence, said.

The five Nansen-class anti-submarine warfare frigates were built by Navantia for the Norwegian Navy. The first unit entered service in 2006.

The five ships, all named after famous Norwegian explorers, include the HNoMS Fridtjof Nansen (F 310), Roald Amundsen (F 311), Otto Sverdrup (F 312), Helge Ingstad (F 313) and Thor Heyerdahl (F 314).

Tods has already supported programs including the DDG1000 (USA), P28 (India) and Type 26 (BAE Systems).

Tods Defence is creating a Lean Sonar Dome manufacturing facility at its site in Portland, UK. Work is currently underway and the facility will be operational in early 2019.