The Interactive Submarine Defense and Attack System (IDAS) is a lightweight, multirole, submarine-launched fiber-optic guided missile system under development for the German Navy and other partners.
This weapon is designed to provide enhanced self-defense and asymmetric warfare capabilities to submerged cruise submarines. It enables submarines to confront threats from anti-submarine warfare helicopters (ASWs), small and medium-sized surface ships in covert operations and pre-selected coastal targets.
The missile was presented at the NAVDEX 2015 Naval Defense and Maritime Security Exhibition held in Abu Dhabi in February 2015.
Development and testing
The U212 submarine is capable of performing a submerged passage over long distances to the area of ââoperation.
The IDAS Consortium includes Diehl BGT Defense, the prime contractor, and ThyssenKrupp Marine Systems. Diehl BGT Defense is responsible for the production of the missile and its fiber optic system, while ThyssenKrupp Marine Systems will oversee the development of the launch container and the integration of the missile system into the submarine.
In May 2013, ThyssenKrupp Marine Systems and Diehl Defense signed a cooperation agreement with the Turkish company Roketsan for the development and supply of an IDAS warhead and the testing of a control actuation system (CAS). The Norwegian company Nammo was selected to develop and produce a rocket engine for IDAS.
Germany offered Turkey an opportunity for its participation in the IDAS missile system in February 2015.
A prototype of the IDAS missile system made its maiden flight from an underwater test facility in northern Germany in 2006. It was successfully launched from the German Navy’s 212A class submarine in the Baltic Sea in 2008.
The first test launch of the Royal Norwegian Navy’s Ula-class diesel-electric submarines is expected to take place in 2015.
Design and characteristics of the IDAS missile system
The IDAS missile system consists of three main components, including a missile, a launch container and the integration of a combat system (CS). The weapon has a high probability of killing in one shot and can be deployed in all weather conditions. It offers a high degree of hitting precision on specific points of impact.
The 2.5 m long missile has a diameter of 180 mm and a launch mass of 120 kg. Its collapsible wing assembly and strakes provide support and guidance in the launch container. The weapon is equipped with an electromechanical control actuation system with four folding control fins.
It also has a fiber optic coil system with four coils. The tail of the missile and the launch container each have one coil, and the compensating buoy of the separable rear part of the missile has two coils.
Guidance and ogive
The guidance section consists of a high precision imaging processing infrared (IIR) homing head, autopilot, strap inertial reference unit, and guidance electronics. This IIR seeker provides autonomous guidance of the missile by enabling it to search, detect and acquire targets. The autopilot is used to steer the weapon.
âIDAS is designed to provide enhanced self-defense and asymmetric warfare capabilities to submerged cruise submarines. “
IDAS is controlled from the Missile Weapons Control System, which is integrated with the submarine’s weapons control system. Operators can control the weapon throughout the flight and perform in-flight retargeting and mission abandonment. A fiber optic data link is installed to transmit information about the bearing and target distance from the submarine’s control system to the missile. It also transmits digital homing images of the missile to the weapon’s control console.
A versatile warhead, weighing up to 20 kg, allows the missile to provide active defense against air, sea and land targets.
Launch container for the IDAS missile
The IDAS weapon is launched from a launch container, which is loaded into the submarine’s torpedo tube. The launch container is capable of storing up to four missiles ready to be launched and the hydraulic-mechanical expulsion of missiles. This container contains reels of fiberglass for each of the four missiles.
IDAS missile propulsion
The missile is powered by a single-stage solid rocket motor operating at varying levels of thrust.