Naval Gun Projects

[spikedpsycho]

CIWS runs independent sensors.
South Korea new LiG CIWS designed in response delay and cost hikes of Phalanx (never less S. KOREA has revently purchased More of them).

AESA radar but choice 30mmx173 round.
Reason UK navy chose Phalanx over Goalkeeper, In threat assessment tests, Goalkeeper did well against subsonic assailants but did more poorly against supersonic ones. Where as phalanx faired superior performance against supersonic threats. Also after Falklands, Need ciws that easy to install as retrofit. On other hand Improvements on APFSDS since then might allow for Cased Telescope 25mm rounds that are compatible to GAU-12: 1,400 m/s or Mach 4 flachettes.

 

[Scott Kenny]

CIWS runs independent sensors.
South Korea new LiG CIWS designed in response delay and cost hikes of Phalanx (never less S. KOREA has revently purchased More of them).View attachment 808750

AESA radar but choice 30mmx173 round.

I suppose if you're also using 30mm Mk38s (or local-production equivalents) you might want to consider a 30mm CIWS for stowage convenience. But they're not using the same ammunition types generally. Mk38s in anti-drone mode would be using PFF/AHEAD, while your CIWS are using APDS or APFSDS. Different primary targets, different ammo.

Reason UK navy chose Phalanx over Goalkeeper, In threat assessment tests, Goalkeeper did well against subsonic assailants but did more poorly against supersonic ones. Where as phalanx faired superior performance against supersonic threats. Also after Falklands, Need ciws that easy to install as retrofit.

Exactly. Early Phalanx is basically a bolt-on unit you can drop anywhere you have enough deck space. It's also a very lightweight mount, only 5 tonnes. So you can drop that anywhere and all it's got in the CIC is a 3 position switch and a fire button: Off/safe, Semi, and Auto.

Newer Phalanx installs added an EOTS and a TV/Video screen, and changed to a 4-position switch with a joystick instead of the plain fire button, adding a full manual control mode.

On other hand Improvements on APFSDS since then might allow for Cased Telescope 25mm rounds that are compatible to GAU-12: 1,400 m/s or Mach 4 flachettes.

I mean, the current Bradley 25mm APFSDS would do the job, and the GAU-22 is the same weight as the M61 vulcan (GAU-12 is only a little heavier). But 25x137 is a good bit heavier so the ammo drum makes the total weight to more like 6 tonnes.

 

[DWG]

CIWS runs independent sensors.

Depends on the CIWS, sensors can be on-mount (eg Phalanx), off-mount (eg Barak), or it can share the ship's sensors (eg RAM).