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Wikipedia

Wake homing

Wake homing is a torpedo guidance technique based on the wake trajectory left behind a moving target.[1]

Wake behind a vessel of the German navy
Soviet 53-65K torpedo developed during the Cold War

The torpedo is fired to cross behind the stern of the target ship, through the wake. As it does so, it uses sonar to look for changes in the water caused by the passage of the ship, such as small air bubbles. When these are detected, the torpedo turns toward the ship. It then follows a zig-zag course, turning when it detects the outer edge of the wake, to keep itself in the wake while moving forward. This will eventually bring it to the stern of the ship, where its warhead can do the most damage to propulsion and steering.

Advantages and disadvantages

The system is difficult to jam, but it can be distracted by other ships crossing the wake. In 2013, the US Navy tested prototypes of a system known as the Countermeasure Anti-Torpedo (CAT),[2] which had been designed to intercept and destroy the incoming torpedo. Deployment of the system did not proceed as planned due to performance issues.[3]

The main disadvantage of wake homing is that the course taken to the target is not direct and may be far from optimal, as it mimics the target's own trajectory from the point of wake's interception onward. As the torpedo's remaining distance always increases hand-in-hand with the distance made by the vessel itself, this necessitates the torpedoes to have a significantly higher speed and longer range than normal.

Also, being an active method, sonar wake homing gives up the torpedo position. This is why it is usually supplemented by passive methods, such as thermal and refractometric wake detection. Thermal wake detection centers on locating changes in water temperature in the ship's wake. Refractometric detection senses minute changes in the water's refraction index due to cavitation bubbles and such.

Examples

  •   Type 53-65 (and later 53-65K and 53-65KE/TT-3) — the first mass-produced wake homing Soviet torpedo; in use with some operators of the Soviet Kilo-class submarines such as   China,   India, or   Vietnam.[2]
  •   Type 65 — Soviet torpedo of the '70s.
  •   Yu-6 — Chinese heavyweight torpedo in service since 2015; also operated by the   Indian Navy[citation needed].
  •   CHT-02D — North Korean torpedo claimed to have a wake homing capability.
  •   DM2A4 Seehecht (export designation "SeaHake mod 4") — modern German heavyweight torpedo.
  •   Roketsan Akya — modern Turkish heavyweight torpedo.

References

  1. ^ Kim, Dae Hyuk; Kim, Nakwan; Cho, Hyeonjin; Kim, Su Yong (2014-10-22). "A guidance logic development for wake homing guidance system (ICCAS 2014)". 2014 14th International Conference on Control, Automation and Systems (ICCAS 2014). Gyeonggi-do, South Korea: IEEE: 190–194. doi:10.1109/ICCAS.2014.6987984. ISBN 978-89-93215-07-6. S2CID 16735317.
  2. ^ a b LaGrone, Sam (2013-06-20). "Navy Develops Torpedo Killing Torpedo". USNI News. Retrieved 2022-09-03.
  3. ^ "Submarines: Wake Homing Torpedo Defies Defenses".


wake, homing, torpedo, guidance, technique, based, wake, trajectory, left, behind, moving, target, wake, behind, vessel, german, navy, soviet, torpedo, developed, during, cold, torpedo, fired, cross, behind, stern, target, ship, through, wake, does, uses, sona. Wake homing is a torpedo guidance technique based on the wake trajectory left behind a moving target 1 Wake behind a vessel of the German navy Soviet 53 65K torpedo developed during the Cold War The torpedo is fired to cross behind the stern of the target ship through the wake As it does so it uses sonar to look for changes in the water caused by the passage of the ship such as small air bubbles When these are detected the torpedo turns toward the ship It then follows a zig zag course turning when it detects the outer edge of the wake to keep itself in the wake while moving forward This will eventually bring it to the stern of the ship where its warhead can do the most damage to propulsion and steering Advantages and disadvantages EditThe system is difficult to jam but it can be distracted by other ships crossing the wake In 2013 the US Navy tested prototypes of a system known as the Countermeasure Anti Torpedo CAT 2 which had been designed to intercept and destroy the incoming torpedo Deployment of the system did not proceed as planned due to performance issues 3 The main disadvantage of wake homing is that the course taken to the target is not direct and may be far from optimal as it mimics the target s own trajectory from the point of wake s interception onward As the torpedo s remaining distance always increases hand in hand with the distance made by the vessel itself this necessitates the torpedoes to have a significantly higher speed and longer range than normal Also being an active method sonar wake homing gives up the torpedo position This is why it is usually supplemented by passive methods such as thermal and refractometric wake detection Thermal wake detection centers on locating changes in water temperature in the ship s wake Refractometric detection senses minute changes in the water s refraction index due to cavitation bubbles and such Examples Edit Type 53 65 and later 53 65K and 53 65KE TT 3 the first mass produced wake homing Soviet torpedo in use with some operators of the Soviet Kilo class submarines such as China India or Vietnam 2 Type 65 Soviet torpedo of the 70s Yu 6 Chinese heavyweight torpedo in service since 2015 also operated by the Indian Navy citation needed CHT 02D North Korean torpedo claimed to have a wake homing capability DM2A4 Seehecht export designation SeaHake mod 4 modern German heavyweight torpedo Roketsan Akya modern Turkish heavyweight torpedo References Edit Kim Dae Hyuk Kim Nakwan Cho Hyeonjin Kim Su Yong 2014 10 22 A guidance logic development for wake homing guidance system ICCAS 2014 2014 14th International Conference on Control Automation and Systems ICCAS 2014 Gyeonggi do South Korea IEEE 190 194 doi 10 1109 ICCAS 2014 6987984 ISBN 978 89 93215 07 6 S2CID 16735317 a b LaGrone Sam 2013 06 20 Navy Develops Torpedo Killing Torpedo USNI News Retrieved 2022 09 03 Submarines Wake Homing Torpedo Defies Defenses This article relating to missiles is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Wake homing amp oldid 1131444794, wikipedia, wiki, book, books, library,

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