Wikipedia

Rheinmetall Sea Snake 30 mm

The Rheinmetall Sea Snake 30 mm is a close-in weapon system designed by Rheinmetall Air Defence AG for mounting on ships. It is based on the KCE30 30 mm revolver cannon, and was designed by a request of the German Navy. It is capable of employment of air burst ammunition (ABM). The launch customer of the system is the Brazilian Navy with the Tamandaré-class frigates.[1][3][4]

Rheinmetall Sea Snake 30 mm
TypeCIWS
Place of originSwitzerland
Service history
In service2025
Used byBrazilian Navy[1]
Swedish Amphibious Corps[2]
Production history
Designed2021
ManufacturerRheinmetall Air Defence
Specifications
MassGun: 479 kg
Length2.89 m
Width1.91 m
Height1.28 m
Crewunmanned
Shell30×173mm
Caliber30 mm
BarrelsSingular
Elevation-25 / +60 degrees
rate: 90 degree/s
Traverse360 degrees
rate: 120 degrees per second
Rate of fireSingle shot
Burst (automatic fire): 1,100 rounds per minute
Muzzle velocity1,050 m/s (3,400 ft/s)
References[3][4]

In addition to standard types of ammunition, it is capable of firing 30 mm x 173 mm Air Burst Munitions (ABM) giving it the ability to engage drones. It has a self-stabilized sensor system equipped with day cameras and a cooled infrared sensor for use at night as well as two laser rangefinders. [5]

Users

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 Brazil

 Sweden

  • CB90 – Ship class Combat Boats, together with the Hensoldt Spexer 2000 3D MK III Naval radar system[2]

Future operators

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 Germany[4]

References

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  1. 1 2 "Compra de munição para o canhão de 30 mm SeaSnake da fragata Tamandaré". Poder Naval (in Portuguese). 15 March 2024.
  2. 1 2 "Swedish Defence Materiel Administration FMV orders SeaSnake 30 for airdefence". fmv.se (in Swedish). 17 February 2026.
  3. 1 2 "SEASNAKE30" (PDF). Rheinmetall. Retrieved 25 May 2024.
  4. 1 2 3 "Rheinmetall: SeaSnake close to production". European Defence Review. 19 October 2020.
  5. ↑ "B432e1225-Sea-Snake-30-naval-RCWS.pdf" (PDF). www.rheinmetall.com. Archived (PDF) from the original on 8 April 2026. Retrieved 8 April 2026.
  6. ↑ "Presidente Lula acompanha lançamento da primeira fragata Classe Tamandaré". gov.br (in Portuguese). 8 August 2024.
  7. ↑ "Fragata Tamandaré em adiantada fase de construção é fotografada em Itajaí". Infodefensa (in Portuguese). Retrieved 21 July 2024.
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