The Phalanx had a selectable rate of fire, of either 3,000 or 4,500 rounds per minute. That's 50 or 75 a second.
Though really, if you want to compare similar vehicles, you'd be best comparing the ZSU-23-4 with the self propelled M163 VADS, not the static Phalanx. The M163 had a rate of fire of 3,000 rounds per minute.
Last edited by Mdore; 10/13/12 08:35 AM.
