Acronyms and Codenames FAQ, X-Z

==X==========================================================================
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XO
       [USA] (slang) Executive Officer
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XST
       [USA] Experimental Stealth Technology. A Lockheed technology
       demonstrator aircraft, possible a prototype of the F-117.
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==Y==========================================================================
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Yankee
      [NATO] Soviet submarine class
Yankee Team
      [USA] Detachment of RC-135 tankers to Clark AFB, Philippines, in
      1964.
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Ye Ethiopia Ayer Hail
       [Ethiopia] Ethiopian Air Force
Yellow Aster
       [UK] Side-looking reconaissance radar. 1958.
Yellow Gate
       [UK] Loral 1017A ESM pod.
Yellow Grain
       [USA] Modification to the F-100 to cure the flame-out problems of
       the J57 engine.
Yellow Sun
       [UK] Nuclear bomb, a free-fall weapon. The codename refers to the
       bomb casing, the actual nuclear weapon in it was changed at least
       once. The Mk.1 version used the "Green Grass" warhead, the
       Mk.2 used "Red Snow". 
Yellow Veil
       [USA] AN/ALQ-167(V) Jamming pod
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Ying Yang
       [Taiwan] Soaring Eagle. Airframe development part of "An Hsiang",
       the development of the Ching Kuo fighter. 
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Young Tiger
      [USA] Operations of RC-135 tanker aircraft during the Vietnam war,
      in support of the tactical air forces.
Yo-yo
      [NATO] Radar for SA-1 Guild systems.
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YP
       [USA] USN: Patrol Craft
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YSR
       [USA] USN: Seaplane Wrecking Derrick
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YTB
       [USA] USN: Large Harbour Tug
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Yun Han
       [Taiwan] Cloud Man. Engine development part of "An Hsiang",
       the development of the Ching Kuo fighter. 
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==Z==========================================================================
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ZAD
       [France] Zone Aerienne de Defense. Air Defense Zone. 
Zapadnaya Gruppa Voisk
       [USSR] Western Group of Soviet Armed Forces, in the DDR.
ZAR
       [USA] Zeus Acquisition Radar. Large pyramidal radar used with the Nike
       Zeus ABM missile.
Zaunkonig
       [Germany] T5 acoustic homing torpedo. 
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Zeke
       [USA] Codename for the Japanese Mitsubishi A6M Reisen fighter.
ZEL
       [USA] Zero (length) Launch system -- A rocket launch system
       for F-100s that carried nuclear bombs.
Zeppelin
       [Germany] Attempt to assassinate Stalin. A special force was partly
       air-dropped, and partly flown to near Moscow by an Ar 232. They were 
       immediately captured.
Zero
       [USA] Nickname for the Japanese Mitsubishi A6M Reisen 'Zeke' 
       fighter, unofficial.
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ZFW
       Zero Fuel Weight
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Z-Go Sakusen
       [Japan] The attack on Pearl Harbour, December 1941.
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Zhame Sau
       [Germany] 'Tame Boars'. Operating method for radar-equipped
       nightfighters, in which they were guided to the allied 'bomber
       stream', picking and attacking their own targets in it.
--ZI-------------------------------------------------------------------------
Zitadelle
       [Germany] Operation against Soviet positions near Kursk,
       July 1943.
Zitteroschen
       [Germany] Winged, supersonic guided missile, terminated in October
       1944.
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ZM
       [USSR] Zagraditel' minniy (minelayer)
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ZOS
       [NATO] Zone of Separation. Corridor separating the former
       combattants, 2km wide in Bosnia. 
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Zulu
       Greenwich Mean Time. Sometimes also used for any time, other than local
       time.
Zulu
      [NATO] Soviet submarine class
Zuni
      [USA] Unguided 5in rocket. 
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