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P-3 Orion

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The Lockheed P-3 Orion is a patrol aircraft[?] of the United States military used primarily for anti-submarine warfare.

P-3 Orion of the US Navy.
Larger version

The first production version, designated P3V-1, first flew 15 April 1961, but by the time the first deliveries were made in 1962, the unified designation system made this the P-3.

Over the years, many variants have been developed.


  • P-3A: original production version, 157 built
  • P-3A (CS): four with better radar, for US Customs[?]
  • EP-3A: seven modified for electronic reconnaissance testing
  • NP-3A: three modified for US Naval Research Laboratory[?]
  • RP-3A: two modified for scientific uses, for Oceanographic Development Squadron[?] at NAS Patuxent River[?]
  • TP-3A: 12 modified for training, ASW gear removed
  • UP-3A: 38 used as utility transports, ASW gear removed
  • VP-3A: three WP-3As and two P-3As converted into VIP, staff transports
  • WP-3A: four converted for weather reconnaissance
  • P-3B
  • EP-3B
  • NP-3B
  • P-3C
    • Update I
    • Update II
    • Update II.5
    • Update III
    • Update IV
  • EP-3C
  • NP-3C
  • RP-3C
  • UP-3C
  • RP-3D
  • WP-3D
  • EP-3E Aries
  • EP-3E Aries II
  • NP-3E
  • P-3F
  • P-3G
  • P-3H
  • P-3K: five delivered to New Zealand
  • P-3N
  • P-3P
  • P-3W
  • P-3AEW&C
  • CP-140 Aurora
  • CP-140A Arcturus

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