Saab has secured orders worth approximately Skr175m ($20.86m) from the Swedish Defence Materiel Administration (FMV) for the continued development of the new lightweight torpedo and maintenance of underwater weapon systems and the Hydra sonar system.
The new contracts are part of a letter of intent between Saab and FMV that was announced in June 2014 to support the Swedish Armed Forces' underwater capabilities for the period of 2015 to 2024.
Saab business area dynamics head Görgen Johansson said: "The new lightweight torpedo order represents another important step in developing a new generation underwater weapon, in collaboration with FMV and the Swedish Navy.
"Based on the proven Torpedo 45 with its outstanding shallow-water, anti-submarine warfare capability, the new lightweight torpedo will deliver significant performance improvements to deal with evolving threats in international scenarios."
Maintenance contracts cover system support and maintenance for relevant operational systems.
Saab business area Dynamics Underwater Systems head Agneta Kammeby said: "Saab has been responsible for the maintenance of the Swedish Navy's underwater weapons for many years.
"We are pleased to announce that we have now expanded this responsibility to include the Hydra sonar system."
In December 2012, the FMV awarded a contract to Saab to upgrade the Torpedo 62 heavyweight system, known as Torpedo 2000, for the Swedish Navy.
This heavyweight system is an anti-submarine / anti-surface torpedo with a range of more than 40km and speed of 40k.
Last month, Saab signed a collaboration deal with Damen Shipyards to bid for the Netherlands' Walrus-class submarine replacement programme.