CATEGORY = 9 ~ ;

· .• MESSAGE = S.1!25Z925

· _illCDUA::9 . · 1ni: urso% 1 ~l~4riRL DE . 0 18183.l!Z ZYH

FM USJ-7.9'4 · lO ·OSCAR - SIXl'GO.(f -~

M = 43 (b) (3)-P.L. 86-36

~!~~v~i~- ~€~o:~~. lN1~~~~~~~~fiT~g~T2~fiEgF H~~~~N3~~~~~~*~E~R~Lt~rn~~~MA~~~is~~R Of' SIGINT AVMLABLE TO USJ-794 AS OF 1812.l!SZ JANUARY 1967. SECTION ONE -

. SUMMARY OF DRV AIR DEFENSE AND FLIGHT ACTIVITY FOR 17 JANUARY 1967. ORV

·•·. c ~u~IlcLJ~~~~~of~~~~~~~A~l~~s AR~:~ E~I~~ ~~flT~il~g+og~u H~~o~. 11

~~~~! ~ ~~N~l R~~~b~T~Y . REFLECT THE LOSS--OF--ONE--RF-4C ___ tolGOLD->-.. IHICILf'.ROBADL Y CORRELATES TO THE REPORTED • .. ,AMLSHOOTDONtLJSlG-1-NI:c_RfH-ECTED 31 ACTIVE RADAR --STATTOlfS--·usTtm-111- IHDTVllllfAl~-, (PIECES __ OF- _RADARo. __ EQU_le.~ MEHL- -T-Hl-S--lS- T-HE--HI-GHEST -=roTA-l-OF---IHDIVI-DUAl- P-I-E.CES- OF~ :RADAR -EQlifPj•fEUr-REFl:ECTED--~CTIVE-·srNcE·-3-s -DECEf·iBER _1-:-9-6Q:·--x11TERCEPT OF DRV AIR SllRVEirLA"t,CE-FACln:TrES-~EFtECTEDElGllT--RADAR STATIONS REPORTING A TOTAL OF 235

· TRACKS_;_ THE NORTHNESTERN AREA HAS THE MOST ACTIVE REGION HITH A TOTAL OF 85 TRACKS REPORT£D HHILE THE HUNG YEN RADAR STATION IN THE CEHTRAL COASTAL REGION

•.WAS THE MOST ACTIVE INDIVIDUAL EARLY WARtlING FACILITY l'IITH 62 TRACKS REPORTED. •. COMINT REFLECTED Ii. :c~~~: tAM SITES, l·UIILE ':EUNT lMPACTS HERE OBTAIHED- ON Uf', ~sAM "SITE ASSOCIA"rEDL RADARS ;-..A NE:H SAM SITE HAS ACTIVATED IN THE SON r-.w

.. AREA (('l/J:4-~J),) AT 2IS9.8 • THERE HERE. 14 ORV· MIG SORT! ES FLOl·IN ON 17 JJl.NUARY HITH ACTIVITY CONSISTIHG OF ROUTINE NAVIGATIONAL TRAIUING FLIGHTS. NO MIG ACTIV·~ .L.L......l:IM~a..&;..!;;.i..a;;.i...&..'"-"4-...u.Llu......i.u;.....i;.rii.w......L.1i;.i:&.....c.u.-...:u.u;;....&;..&..11..;u......L..1.a.:.u;......,,..w..~:L....10u;;..i..a;.i:u.LU1..........,

- ")

I ADDITION, DRV AIR SURVEILLANCE FACILITIES REFLECTED ';:F,.:;O;;;UR;;-;:l"l!i7lp~rzr11'!"K""""DT~.,A~IVE, AND TRACKS MERGING WITH THE BLUE SPRitlGS DRONE FIVE llAUTICAL MILES SOUTH OF KEP HOWEVER, ALTITUDES C8,2BBB FEET FOR THE MIGS AND • 44,928 FEET FOR THE DRONE), AT THE TIME OF MEGER SUGGESTS THAT THE MIGS WERE NOT IN ACTUAL REACTION TO THE DRONE, BUT PROBABLY l-IERE RE-TURNING TO KEP FROM--Jr-~ ROUTIHE TRAINIHG FLIGHT. SECTION THO - HOSTILE AIRCRAFT DOl-INEl;l DY AAA SOUTIU'<IEST ----··---' OF HAUOI. BETWEEN S62S-S623Z, DRVrMU[JlCHANNEL'COMMUllICATIUNS AND AIR SURVEILLANCE FACILITIES REFLECTED THE SHOOTDOHN OFONE "HOSTILE'.' AIRCRAFT SHORTLY BEFORE S629Z, BY AAA PROBABLY CO-LOCATED WITH A SAM SITE SOUTHWEST OF HAllOI. AT S62SZ AN UNIDENTIFIED SPEAKER REPORTING TO THE HANOI AAA CONTROLLER STATED "THE AAA HAS SHOT AND HIT ALREADY". IT ~IAS. FURTltER REPORTED THAT THE

~~Rr~~ s~A~. -.. ~~~K~f R u~~Re~I f rA~~~M~l~I~~ T ¥ g ~~~~ f ~~ L ~I ~~Ff E~H~ f ~ET ~~~~~T ~AHGE _IDEtHIFIE·o AS TWO AIRCRAFT, APPROXIMATELY 55UMS SOUTHl-IEST OF HOA DINH AT B612Z

HEADING IN A NORTHWESTERLY DIRECTION TO APPROXIMATELY 5511M SOUTHWEST OF PHU THO AT S614Z, THEN GENERALLY EAST TO A POSITION OVER HOA DINH AT .1!62SZ THENCE NORTHEAST TO A LAST NOTED POSITION APPROXIMATELY ISNM HEST OF HANOI AT .1!623Z. PROBABLY CORRELATING TO THE ABOVE ACTIVITY HAS THE REPORTED LOSS <OPERATIONAL REPORTS) OF ONE RF4C COIGOLO), WHICH WAS SCHEDULED" OVER A POSITION APPROXIMATELY 12NM SOUTHWEST OF HANOI AT 062SZ. CONTACT HAS LOST HITH GIGOLO WHILE INBOUND TO HIS TARGET. 6SS NNNN , ·

TBPc-§.ESRE{~~~~:;'~:·· -• @'pproved for release by NSA on 05--14--2014, Transparency Case# 6588a

• ..

_.._·;:

·-.

; ....

~·

,--···

\ \ _.._ ... _ ...

' " CATEGO.RY .;: 9 M = 41

. • MESSAGE = lfS2527 58

j :::::~~;:;;;~;;::·::5AMA92• !El 0 l8183SZ. ZYH ;----::_~-------· FM USJ,..794. ~ -TO QSCAR SI_X/GOLF"- . _ ZEM'-.:::~-_,_::o·' ··-.:~' · \ ,-;.:.::·'' __

·A~t¥~~;~ ~i~~-~~Eir.F~-~~l~f o~Eg~~~~I~~g ~~R~~~RR~~l~Q~K~~~~~M~~~~Ll~lr¢~IsA~~ • .. SIGINT AVAILABLE TO USJ"."794 AS OF 1812S8Z JANUARY.'. 1961._._ SECTIOtLTHREE - AIR

DEFENSE\ AND FLIGHT ACTI\iITY __ FOR __ l7_JANUARY 1967. (f:. ·slGINT F6R- -i 7 .iA-NHARY ~. ;REFtECTED\3T -ACT"lVE--R"A"llAR_-STATIONS us·rnG ·rs-lflDIVIDUAL PIEC,ESo,O.E-:-RADAR ... r'. ~--~

( EQUIPMEN.T ,\ THIS. IS THE--·Hl-GHEST TOTAL OE.- lNDI.VI.DUALPIECES ... OF-..RADAR.-EQUI-P----MENT . ~ -- - - - - - . . -

s REPORTED BYeIGHT RADAR STATIONS. THE NORTimESTERN ORV HAS THE MOST ACT.IVE AREA WITtl A TOTAL OF 85 TRACKS REPORTED. THE PHU THO RADAR STATION, LO_CATED 43NM NORTHl-IEST OF HANOI, HAS THE MOST ACTIVE EARLY 1-IARNING FACILITY IN. THIS AREA IUTH 27 TRACKS. -THIS IS THE LARGEST VOLUME OF TRACKING REPORTED BY THIS SITE SINCE 38 DECEMBER 1966, WHEN IT REPORTED 28 TRACKS. THE BACH HA RADAR STATIOtl:, LOCATED 78. tH·i NORTIUIEST"•OF HANOI, REPORTED 22 TRACKS.­THE LARGEST VOLUME OF TRACKING REPORTED SIHCE 2'6 TRACKS WERE REPORTED ON 19 DECEMBER 1966_. THE VIET TRI RADAR STATIOll, LOCATED 26NM HORTtH~EST OF HANOI, REPORTED 22 TRACKS, THE\ LARGEST VOLUME OF TRACl<IUG REPORTED SltlCE 15 DECEMBER 1966, tlHEN 32 \TRACKS WERE REPORTED. THE SOUTHERH ORV l~AS THE SECOND MOST ACTIVE AREA HITH A TOTAL\ OF 83 TRACKS REPORTED. \JHE VltlH RADAR STATION REPORTED 42 OF THESE TRACKS Wt1ILE. THE TRA TRAtlG RADAR STATION, LOCATED 18NM NORTHl·IEST OFVIHH REPORTED THE REMAINING 41 \JRACKS. THE THIRD.MOST ACTIVE AREA l-IAS THE CENTRAL COASTAL REGION ~IITH. A TOTAL OF 62 TRACKS REPORTED BY THE HUNG YEN RADAR

. STATION, WHICH HAS THE MOST\ ACTIVE IHDIVIDUAL. EARLY "IARtHHG FACILITY IN THE • ORV. THIS IS THE LARGEST VOLUME OF TRACKHIG REP-ORT ED BY TlllS __ SITE· SINCE 17

. DECEMBER 1966, i-IHEN 71 TRACKS "IERE REPORTED. 'cO~I:~:H~-:~:~:s ~~-:r-A-~~-rACK"IHG-~ l~£P_OJH_ED-"BY--THIS -s"ITE--&o1As--PROBJmtr--PERFOlrn"ED--BY~ ;RAOAif ' rocATED THERE.'- THE tlORTHEASTERH DRVWAS THE· LEAS I fl I L OF FIVE TRACKS REPORTED BY TllE KEP HA RADAR STATION, LOCATED 35NM tlORTH OF

· tlAIPHotlG __ , __ ALLFIVE-TRACKS-l'IERE IDENTI.FIED BY COMHITAS BEING "FRIEtlDLY".[A.LT-... .­·._·-.c_'[RA(;T<lt.fG_ REP-ORTED--BY- -THIS E~RLY·:·HARHitlG-FACI LlTY--1-IAs--REFLECT-E·n--oy COMUff~·A"s::-(P"ROBABlY PER-· FORMED BY1 \_ ~RADAR LOCATED THERf •. 2-:-·coMINT REFLECTED

.• ErEVEtf"ACTIVE-sAM-·stTES IN HE cen- T AL AUD EASTERN ORV, WITH FOUR SITES SUBORDitlATED TO THE 234TH SAM REGIMENT, AND ACTIVE IN THE VICINITY OF HAIPHONG.

-THERE HERE ALSO THREE SAM SITES ACTIVE IN THE PHUC tlHAC AREA AND ONE EACH IN •THE HANOI AND BAC NINtt AREAS, ALL SUBORDINATED TO THE 238TH SAM REGIMENT. ONE

SAM SITE SUBORDINATED TO THE VIHH SAM REGIMENT HAS ACTIVE IN THE VIHH AREA. A tlEH SAM SITE HAS ACTIVE IN THE SON TAY AREA AT 21S9N 1U528E, AND ASSIGNED ARBITffERY S~TION DESIGNATOR <VJ.-_45T~ THIS SAM SITE COULD NOT DE SUBORDIHATED TO ANY KNOl-IN SAM REGIMENT. BEJ!:IEEH SS12 Aflll 1 71 V. CED tu "IMPACTS _HfRE 0-8IUNEj). Oil :--,

cTEU $AM SITE AssgcrATEd IRAPARS I , '-1 I - .~..,

• ~!'-~::iSGAET

(b) (3)-P.L. 86-3\)

ree,. ~EeRET c:>···

STATIONS,SEVEN OF WHICH-~ERE NOTED0

TRACKING A TOTAL OF 55 SURFACE VESSELS AHD 38 AIRCRAFT. THE NGA SON NAVAL RADAR STATION REFLEGTED 29 OF THE AIRCRAFT . TRACKS, WHILE; THE CAC BA NAVAL RADAR STATION REFLECTED THE REMAifHNG NINE AIR­CRAFT TRACKS. SURFACE VESSELS HERE TRACKED WITH A STATION TO TARGET RANGE OF EIGHT TO 76NM, WHILE AIRCRAFT TRACKING RANGED BETWEEN 21 AND 91 NAUTICAL MILES.

-

-•

IPP HNNN · ·

._.,,..,

...... .

.·

-···-'

.,

TBP SEERE"f tUIBltA

\\ CATEGORY = 9 .' .

M = 42

\ MESSAGE = SS252765 : .

· 1\~:r~;:::·:;,:::·::· ' ' ' ' ' 'PE{ '

~~~ ~?~184S ~KZK 00 SDA HAHNRL DE --

~~ ·M~~A~9 ~1x,-0DLF · ·. ZEM . ··· .... . · ..

r .e P 5 E e· R ~t- T TRIHE sEcnou THREE OF FOUR F1.U6r--lcK=..ELR2-67PRELIMillARY AU ACTIVITY REPORT. IHFORMATION CONTArnED HERE!~ REP'RE'SffITSPREL"fMINARY AHALYSIS OF SIGINT AVAILABLE TO USJ-794 AS OF 1812SSZ JANUARY 1967. SECTION THREE CONT4. THERE ~IERE 119 MIGS PREFLIGllTED FOR TttIS DATE. TtllRTY- SIX FROM PHUC Yt;ll, 25 FROM KEP AND EIGHT FROM HAllOI GIA LAM. ACTIVITY l-IAS SCllEDllLED FOR BOTH DAY AND HIGHT HOARS OVER NORMAL COURSE TRAINING AREAS. TTC ACTUAL HUMBER OF MIG SORTIES FLOWN WAS 141 TWELVE FROM KEP AND THO FROM HANOI GIA LAMGM NO . MIG ACTIVITY WAS REFLECTED OUT OF PHUC YEN FOR THE FIRST TIME SINCE24 DECEMBER 1966~ -ON 16 JAHUARY ONLY THO MIGS HERE ACTIVE FROM THIS AIRFIELD ALTHOUG•I HEATHER FOR BOTH DATES C24 DEC AND 16 JAN> HAS CLEAR IN THE HAHOI/PHUC YEN AREA AND PREFLIGllTS HERE ABOVE NORMAL. MIG ACTIVITY HAS REFLECTED BEHIEEH lf9Sl-1354Z AHO CONSISTED OF ROUTINENAVIG~TIOttAL TRAllllNG FLIGHTS.DETHEEN g9sl-1354Z, DRV AIR SURVEILLA"CE FACILITIES REFLECTED 121MIGS FROM KEP Itt ROUTINE UAVIGATIONAL TRAIH- ING Ill AU Al<EA EXTEllDIUG FROM KEP EAST 35HM, SOUTHHEST4811M, llORTH21HIM THEN NORTHEAST UftlM TO KEP. ALTITUl>ESFOR TltlS ACTIVITY RAtlGED DROM • l ,64if·"l4, 76S FEET. DEHIEEH '19if8-S918Z, DRV AIR SURVEILLANCE Fl\CIL ITIES REDLECTED FOUR MIGS STAGING. FROM llANllillG/HUYU· ENGAGED Ill A DEFENSIVE PATROL Ill REACTIOn TO A HIGH LEVEL DLUE SPRINGS DRONE NOTEI>. OVER TllE HURTHEAST SECTOR DF TUE DRV. THEMIGS HERE REFLECTED AT ALT)TUDES RANGIHG FROM ll,48a TO 22,96~ FEET. CLOSEST PUitlT OF APPROACH TO TllE DROtlEOCCJJRRED AT . S908Z l-ltlEll HIE MIGS ~IERfi · APPIWXIMATELY 9iftlM FROM THE DRONE. AT nits PO.JtlT TRACKING CEASED ON HIE DROHE. THE MIGS COllTINUED AIRBORllE AND DY S925Z APPROACHED TO HITHl11~3NM OF THE ORV BORDER BEFORE RETURH G TO HAUIHNG/l·IUYU. IN ADDITIOll BETHEEN lf9i11-S9d'1Z, FOUR KEP DASED MIGS WERE ACTIVE -IN THE IMMEDIATEVICilllTY OF TllE DRONE AND DRV AIR SURVEILLANCE FACILITIES REFLECTED· THE TRACKtlG OF THE DROUE AtlD TllE MIGS MERGING FIVE tlAUTICAL MILES SOUTll OF KEP AT S91MZ. llOMEVER, .TllE AL TITUOE REFLECTED FOR THE MIGS, 8\, 21Ul FEET, AND THE ALTITUDE REFL t:CTED FOR THE DROllE, '•'•, 29S FEET, AT T~E TIME OF MERGER SUGGESTS THIS ACTIVITY HAS ttOT Ill ACTUAL REACTION TU THE DRONE. BETHEEtt 12S2-12S6Z, DRV AIR SURVEILLAttCE FACILITIES REFLECTED THO MIGS FROM HANUI GIA LAM ENGAGED IN ROUTINE llAVIGATIOllAL TRAillING FLIGHTS H AH AREA EXTEUDIUG. FROMHAUOI GIA LAM l'IEST THO HAUTICAL MIL ES, llORTH l6tlMS THEtl SOUTHEAST 17HMS TO ·O S

TBP SECR.ET l:lrtBRA

b) ( 3) - P. L. 8 6-3

·- ....

,.

-

/

TQP ~~ERET ~HBftA "(;: