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  • Launch rate: one every 3 s,

  • Original seeker was “fire and forget,” using passive, dual-mode (RF/IR)stinger missile seeker,

  • Acquisition and initial track using RF from incoming missile,

  • Transfer to IR for terminal-track, reticle scan in 4.1- to 4.5-mm band,

  • Block I upgrade (RAM II) uses a linear-array IR detector in seeker,

  • Dual-mode RF/IR or IR only,

  • Completed operation tests, entered fleet in 1999,

  • Maneuverable up to about 25 g,

  • Engaged a maneuvering Vandal missile during an exercise,

  • 9.5-kg warhead with 3-kg high explosive,

  • New low-altitude fuze,

  • Dual-thrust motor,

  • Possible RAM upgrades,

  • Larger diameter (14 cm to 15.5 cm), greater range,

  • Maintains high velocity over entire trajectory,

  • Increased maneuverability,

  • Uplink to missile will allow target acquisition in bad weather,

  • Sea RAM,

  • Industry development in response to British navy request,

  • Shorter inner range, faster response time,

  • Uses phalanx 1B's high-resolution, target-search-and-track sensor, and

  • CIWS 20-mm gun is replaced with RAM Block I, 11-tube launcher.

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