30mm Goalkeeper



Overview


30mm Goalkeeper

30mm Goalkeeper close in weapon system on ROKS Yulgok Yi I destroyer.
Source: Unknown author - © Copyright lies with original owner

Origin
Netherlands
Type
Close-in weapon system
Entered service
1980
Status
In service
Development
1975 - 1979
Developer
Netherlands - Hollandse Signaal Apparaten (HSA)
Production
1980's - ?
Producer
Netherlands - HSA (now Thales Nederland)
Number produced
Over 50
Notable users
Netherlands
United Kingdom
South Korea

Description


Introduction

The Goalkeeper is a late Cold War era close-in weapon system of Dutch origin. It was developed by Signaal to provide last ditch protection against the new range of Soviet supersonic sea-skimming anti-ship missiles. The Goalkeeper is a very capable CIWS system, but comes with a high price tag and has proved to be somewhat difficult to integrate.

Design

The Goalkeeper is a CIWS system with a powerful rotary cannon and on mount fire control systems. When introduced the Goalkeeper featured a level of automation and target prioritization not yet found in older systems. The large mount, powerful recoil and below deck ammunition handling system make the Goalkeeper requires that use of the Goalkeeper is integrated in the ship design.

Fire control

The Goalkeeper features both search radar and fire control radar on its mount. The search radar is a 2D system that operates at the I-band and has a range of about 30 km. Up to 18 targets are tracked at the same time and serve as input for target prioritization and queueing. The tracking radar operates on both I band and K band. Time between detection and engagement can be as little as 5 seconds. TV guidance allows for remote manual control of the Goalkeeper.

Firepower

The seven barrel GAU-8/A Equalizer rotary cannon is the centerpiece of the Goalkeeper. It is the same armament as used on the A-10 Warthog ground attack aircraft. The powerful 30x173mm rounds, radar correction and 4.200 rpm rate of fire provides the Goalkeeper a rather high level of effectiveness at its practical effective range of 1.5 km. Engagement starts at 1.5 km and with supersonic missiles ends as close as 300 meters. The linkless feed system holds 1.190 rounds. The system was designed to use tungsten sabot rounds, with a new series of frangible ammunition under development.

Users

The Goalkeeper is used on various classes of ships of frigate size or larger. The main users are the Netherlands, the United Kingdom (former user) and South Korea. The Goalkeeper has been exported to several nations, mostly when fitted on former Dutch navy ships were exported.

Details


Facts Goalkeeper
General
Origin
Netherlands
Type
Close-in weapon system
Ordnance
Type
30mm GAU-8/A Avenger
Cartridge
30x173mm
Rate of fire
4.200 rpm
Range
1.5 km
Muzzle velocity
1.109 m/s
Mount
Feed mechanism
Linkless feed system
Ammunition
1.190 round below-deck magazine
Traverse
360°
Traverse speed
95°/s
Elevation
-25° to +80°
Elevation speed
80°/s
Operation
Crew
None on mount
Reload time
9 minutes
Dimensions
Weight
6.372 kg mount with 1.190 rounds
9.902 kg for full system
Height
3.71 m above deck
Deck penetration
3 m below deck
Search radar
Band
I-band
Beam
60° vertical
1.5° horizontal
Coverage
360° at 60 rpm
Range
30 km
Tracking
Up to 18 targets
Engagement radar
Band
I-band and K-band
Optronics
Type
TV
Electro-optical and IR after upgrade

Media


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30mm Type 730

The Chinese Type 730 (H/PJ12) close-in weapon system has a very similar design, armament and performance as the Goalkeeper.