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In page Tomahawk missile:

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Variants:

  • Block V: A modernized TACTOM with upgraded navigation and communication, including anti-jam GPS.[1]
  • Block Va: Block V anti-ship version, capable of hitting moving targets at sea. Block Va's range is shorter than the Block V's, due to the extra space for the new navigation/sensor/passive radar needs. Estimate the Block Va's range is 310 to 430 mi (500 to 700 km)[citation needed]
  • Block Vb: Uses a joint multi-effects warhead (JMEWS) that can hit more diverse land targets, using a multi-mode blast fragmentation and penetrating warhead. IOC is slated for 2027.[2][2][3]