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UAP LEDGER
CIA

CIA-UAP-D021: Analysis of Unconventional Aircraft Sightings, 1955

Released: July 10, 2026

Sections 1 and 2 of this memorandum document a 1955 analysis of reports of “flying saucers” or “unconventional aircraft,” referencing the incident descr…

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Text extracted directly from the source PDF. Text extraction via abigailhaddad/ufo-releases; original file at war.gov.

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                    .                    ...                      •              Approved for Release 2026                                                                ,.~
                                                                                                                                                                    ....1 . :·· ·:··· 1955
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                                                                           SIGNATURE RECORD AND COVER SHEET                                                                   ASJJ
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_tCUMENT DESCRIPTION                                                                                                                                                   REGISTRY
 SOURC                                                                                                                                                    CIA CONTROL NO.
              ,,_
                                                                                                                                                             //.5'1,··J5
 DOC. NO.                                                                                                                                                 DATE DOCUMENT RECEIVED

 DOC. DATE               ..    -     '         .(:   .,;::;   ;




 COPY NO.                --                                                                                                                               LOGGED BY
 NUMBER OF PAGES
 NUMBER OF ATTACHMENTS
                                                                                                                      "~
 ATTENTION: This form will be placed on top of and attached to each Top Secret document received by the Central In tel-
 ligence Agency or classified Top Secret within the CIA and will remain attached to the doc um en t until s1cch time as it
 is downgraded, destroyed, or transmitted outside of CIA.  Access to Top Secret matter is limited to Top Secret Control.
 personnel and those individuals whose official duties relate to the matter. Top Secret Control Officers who receive
 and/or release the attached Top Secret material will sign this form and indicate period of custody in the left•hand
 columns provided. Each individual who sees the Top Secret document will sign and indicate the date of handling in the
 right-hand columns.
  REFERRED TO                                                         RECEIVED                                RELEASED                                           SEEN BY
      OFFICE                                             SIGNATURE                    DA TE     ,    TIME    DA TE     TIME
                                                                                                                                        I   SIGNATURE      AND   OFFICE                  DATE

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             ro          When this form is detached from Top Secret material it shall be completed in the appropriate
  NOTICE OF DETACHMENT:
  spaces below and transmitted to Central Top Secret Control for record.
                               DOWNGRADED                                                             DESTROYED                                       DISPATCHED (OUTSIDE CIA)
 TO                                                                         BY (Signature)                                                  TO


 BY (Signature)                                                             WITNESSED BY (Signature)                                        BY (Signature)


 DATE                                                                       DATE                                                            OFF ICE                               DATE


FORM NO,
I APR 55
              26              USE PREVIOUS EDITIONS.
                                                                                                    TOP SECRET                                                                                  (40)

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                                     1. A diapatch fJra fnaUlt, c..103, . . _ lJ octobe:r 195,,
                                ~ tke ~ e l l • ~ sa.ucen w tUac-J..ue
                                wcoa,•tioUl. IW"Cl"llft. a ~ vitb • • m-cn,
                                one ot ta tom- ~ it .._ ~ , t&tlel. to
                                eon:tim in •••'al zeapect.;g U. iA.fanAtion r~;ivea 1.11
                                tiepat.eh.
                                                                                                    *
                                         2.   W.a ~ i o n a -.re .l.iJdlll 10 sitfl\iag tvo
                                lit)lta 'lthieb iaitialq GON ...-.tka.tb al tlMm ~
                                tbe tra.1D am. JUl14 l1ftl' lllad. &t a bJ.ab alt,1ttlllt. Be
                                taile4 to obH.,,_ the bofl' f/l ta obJect Ml W m, teelhg
                                • to -.ther it _. real,. tJae-1.U. or .,_ .._... 11a
                                only lW(lll fW .......1bine • . .....i1ona1 . . . . t.o the
                                obJect .,. that lt roae WA1-ti-U, an.I ~ w gl.ia ta
                                a 1NDDt11r Ullli.la _,. eJ.nnft be -    ~ .... loww.-,
                                1n nev or* tact t.lJiat tr..,...._•_...._ be ~ t the
                                ~ quite 1l1gll (9000 teet) ana - - hi& obac'vaticd
                                wn \Bldoubte411' CODIUtiODIA b) ~tor lWlell 'a remrlla
                                tllat he w. -- • flJilat ....-, too - - ~ w t
                                be giwa to his ~ - 9111 tact tho .IO 8D1ae ...
                                blU'd ~ &tao haw 1..~ 1 • Ilia opinion • •
                                mcammt1cmal ~111U.e ot U. obJect,. II a1ao tnJ.lAl4
                                to OOl1f1:na the eseitaaeet. or 'tJII ln:la ottieial. tollow1ng tbe
                                in(:ident. It Sa 1111 belt.et t.bi&t - - • • teat.1.o::in::, alone cou.14
                                not contira t.bll aistace ot an:, VDI J ,_tioa&l a.1rantt.
                                IIJwwer, be . . not. iA a ,oei'Uon to bmt u pl. a lOClt •
                                WN the othar -t'ber• ot 'bbl pa:tt7. A __,. c:aNtul
                                ~ \ i o l l ot the otlllr . . . . . ia 1a o.-..

                                     3• 'fll0 ,.... IIF, · • AAa1.IOII h11 Ill a gl'Oq) llbieh
                                imut,:1&1fl.ted IJ.I. •i&t,lt.;inglt . , ~ tll!l,UoeN,.
                                                                                     !ha gl"OUI
                                ,.. able to IIIIPl,a:ln &laoat ell taie t'lptiDIJI al Naebl4
                                tbe ccn.clua1oll tlat . _ . phe1Kin11• ftlP1'8NlltA4 no tlaNat
                                to the eecurt.t.y ot tllllt U-.8. hen U '1ae pUHllt 111.afltinp

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    14 nv.ta a,e ~ , it ~ aot. • • •,.,•• tbet. thW
    ~ i o n a l ~ laYO act.U, ,._ a,,tag souo4
    tJa u.s. a.._. 1:lle ac:mree or tr.!. ,ul41e-8111Dlatt.m..

            '6.. b WAP 1a ~ - a ~ ,.- at- Avro
    A1J"anft Ltd. la 0Jllllle tf# U., ~ of \iMIC,GNAt1oal
    .........,._like &.1lWtft. llM••# tba ~ ill still 1n
    tile W'l7 111•1m . . . . . . . . . . . . . . . . -.tb .,._ <lr JKft
    ,.,.. be&zte ~ ·--. •     ~ ot. tu-st,
    ~.           ~ t.Ji11t ~ Jl'O,_ 01&\ ... UL 1:r.l, '111a
    ~ iMSate t a t . , _ . , . ~ atat&t .... a
                       <•
    '9lll7 nt&b -.u.1111                ,._>
                            -te 1~io..ooo   1'1U& .,..., ,. to
    l8oo au. .,_ bow, a ftllll1P ~ TOO au. .a -- .r cliw'tt
    ot 120,000 M' & .m.\.mtte.. A ...Ueal taJlll•oft ~te."1at.1C
    ~ at __.., lie ~ _........ ~ l u 1:1111.ng
    41.ree'tel b., ~ ~ - Mr. , . _ la ~ to _ . gc't.tm
    lUe Ql"Sg:lal . . . tor Ult t'l.Ylnl wbJ• ,,_ • lfO\IIJl "'
    O.-..J-'a.na,Worl4Willl"ll. !hl---ll!l'Jal.loMN
    ~ ~ - 1 = f.NII .... ~ . . . . . (B. 18                   ....-.a
    that ~ - . General 3amts:,rd to 1epc:,r\ GIii 'illl ....,_ of
    tbe Air 1'woe proJ4tet. at. tlll !AC aeat1ag.)




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    DISTR.IB\lrIOJI
       Orig & l - M
                1- m/1
               2 • Ari/SI
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