Air defence in naval tactics, especially within a carrier group, is often built around a system of concentric layers with the aircraft carrier at the centre. The outer layer will usually be provided by the carrier's aircraft, specifically its AEW&C aircraft combined with the CAP. If an attacker is able to penetrate this layer, then the next layers would come from the surface-to-air missiles carried by the carrier's escorts; the area-defence missiles, such as the RIM-67 Standard, with a range of up to 100 nmi, and the point-defence missiles, like the RIM-162 ESSM, with a range of up to 30 nmi. Finally, virtually every modern warship will be fitted with small-calibre guns, including a CIWS, which is usually a radar-controlled Gatling gun of between 20mm and 30mm calibre capable of firing several thousand rounds per minute.
Air defence in naval tactics , especially within a carrier group , is often built around a system of concentric layers with the aircraft carrier at the centre . The outer layer will usually be provided by the carrier 's aircraft , specifically its AEW&C aircraft combined with the CAP . If an attacker is able to penetrate this layer , then the next layers would come from the surface - to - air missiles carried by the carrier 's escorts ; the area - defence missiles , such as the RIM-67 Standard , with a range of up to 100 nmi , and the point - defence missiles , like the RIM-162 ESSM , with a range of up to 30 nmi . Finally , virtually every modern warship will be fitted with small - calibre guns , including a CIWS , which is usually a radar - controlled Gatling gun of between 20 mm and 30 mm calibre capable of firing several thousand rounds per minute .
What is the rate of fire for a radar-controlled Gatling gun of 20 and 30 millimeter?
What is the rate of fire for a radar - controlled Gatling gun of 20 and 30 millimeter ?
several thousand rounds per minute
several thousand rounds per minute