Terne ASW
Encyclopedia
Terne is a Norwegian Anti-submarine weapon
system, which uses rocket-thrown depth charges. It was developed by the Norwegian Defence Research Establishment (FFI) in cooperation with the U.S. Navy in the late 1940s-early 1960s. The Terne development project consisted of three phases:
Terne I : Development of a rocketborn depth charge
.
Terne II : Development and construction of a landbased ASW
for naval defense.
Terne III: Development and construction of a shipborne ASW
.
A Terne III weapon system consists of a search & track sonar, a fire-control system and the rocket launchers, which can store six salvos of six rockets each. The rocket itself, is a depth charge with multiple fusing modes (preset time after water entry, proximity, or contact), which is propelled through the air by a solid-fueled rocket motor. When the sonar
detects a target, the fire-control system can fire a rocket salvo to place a string of depth charges 18 m (20 yds) apart, perpendicular to the target's course.
Anti-submarine weapon
An anti-submarine weapon is any one of a range of devices that are intended to act against a submarine, and its crew, to destroy the vessel or to destroy or reduce its capability as a weapon of war...
system, which uses rocket-thrown depth charges. It was developed by the Norwegian Defence Research Establishment (FFI) in cooperation with the U.S. Navy in the late 1940s-early 1960s. The Terne development project consisted of three phases:
Terne I : Development of a rocketborn depth charge
Depth charge
A depth charge is an anti-submarine warfare weapon intended to destroy or cripple a target submarine by the shock of exploding near it. Most use explosives and a fuze set to go off at a preselected depth in the ocean. Depth charges can be dropped by either surface ships, patrol aircraft, or from...
.
Terne II : Development and construction of a landbased ASW
Anti-submarine weapon
An anti-submarine weapon is any one of a range of devices that are intended to act against a submarine, and its crew, to destroy the vessel or to destroy or reduce its capability as a weapon of war...
for naval defense.
Terne III: Development and construction of a shipborne ASW
Anti-submarine weapon
An anti-submarine weapon is any one of a range of devices that are intended to act against a submarine, and its crew, to destroy the vessel or to destroy or reduce its capability as a weapon of war...
.
A Terne III weapon system consists of a search & track sonar, a fire-control system and the rocket launchers, which can store six salvos of six rockets each. The rocket itself, is a depth charge with multiple fusing modes (preset time after water entry, proximity, or contact), which is propelled through the air by a solid-fueled rocket motor. When the sonar
Sonar
Sonar is a technique that uses sound propagation to navigate, communicate with or detect other vessels...
detects a target, the fire-control system can fire a rocket salvo to place a string of depth charges 18 m (20 yds) apart, perpendicular to the target's course.
See also
- Video of HNoMS Narvik (F304) fires Terne III rockets
- Anti-submarine weaponAnti-submarine weaponAn anti-submarine weapon is any one of a range of devices that are intended to act against a submarine, and its crew, to destroy the vessel or to destroy or reduce its capability as a weapon of war...
- Anti-submarine warfareAnti-submarine warfareAnti-submarine warfare is a branch of naval warfare that uses surface warships, aircraft, or other submarines to find, track and deter, damage or destroy enemy submarines....
- Depth chargeDepth chargeA depth charge is an anti-submarine warfare weapon intended to destroy or cripple a target submarine by the shock of exploding near it. Most use explosives and a fuze set to go off at a preselected depth in the ocean. Depth charges can be dropped by either surface ships, patrol aircraft, or from...