~. HUMI!R 0' OIJIC:TS 6. TYfl! 0, OIII.VATION Gro urd- Vi::mal Gro und-lo:ldJ.r 7. COUJISE 9. PHYSICAL EVIDINCI 2. LOCATION 10. CONCLUSION Evaluation: :~o3sible c::;rounJ clutt.e r &. 'F-86. T_mpe'b.J.re inva r!l:D0 11 e::cist~nt. H.ac!9.r analys t st:;.ted that i t has hi ~hly probably t!1;., blips uere r.round t:1r~ets . iJ1SU.~L: It i.s believed that li 'lt3 11. IJIIIJIIUMMARYANDANALYSIS ~rere from a.."'l a/c. Three brigtlt 1i6hts. tie:-e c:i:> served hoverirg in various forma.;i; ti ons during a period af 10-15 minut. as. Objects 'dere aloo picked up by~adar on J-J6 a/c, 2 utes elapse between visual sigh_tlng arrl radar s~nt~. AOI.'I'IHG ), JOINT MESSAGEFORtf1 COM \IUNICATIONS CEJ'jTER NO. ' ,_ S,.AC.ABOVI!FORCOMMUNICATIONSCENT~lfONLY ~--..... - ..~ ........... FROM: (Or~inaror) CCNDR ATIC CO).tDR CARSWELL AF BASE TEXAS DAft TIME G~OUP ?RECEDENCE ACTION ~RIGIHAL MESSAGE 0 BOOK MESSAGl 0 MULTifilE ADDRESS REFERS TO ME.SS~c:;E: 101CTlfiCATIOH t 'r:Fsi'A 1 ti-;:-L;J FROM: AFOIN-ATIAE-7-~E FOR 19th Air Division Reurmsg 7A2 644 08)_5; 13 Feb 53, radar-visual sighting of unidentified objects. m.ak:illg radar sighting from B-)6. ATIC has receiTed Electronics Data Sheet. submitted by your Base. Additional "'" tioaa which arise follow: l) Were the 2 radar blips moving? 2) Did they change size rapidJ.i'l 3) It moving, waa the speed variable? 4) Did they appear and disappear, then reapp at a nev location? S) Were they sharp returns compared to known a1 r- i crdt targets? The above is needed to anal~e radar portion o! sighting. In I eply a1 te P'!'ilject Blue Book .. DOWNGRADED AT 3 rEAR IST!:~P.~' .: .. S; Olsson/jos J)ECI.ASSIFIED AFI"E&fjc~ftE COPY , DOD D~ 62~. ATlAS. S 12 - . -- . Office or Record . Project 10073 'AGI 1 l PAGD R!J'I.ACD "MI POI'N 171, I MAY WHICH :.4AY I( I.'SIO. COOIIDIN ATIOI'f ORCNL COD& AND PULL IJQNATUaa :~ORDDIATICK: L t OlaaOD Lt Col Jotm Col:-McOnf'fee ~ UNCLASSIFiED R.M.OLSSON/jos/65365 riatlaa' an' dmt.i t~ obJ tor abJwe dat.e haa bee el.ved by the Air '!echn1 cl e.t And reviewed b7 ita electronics pens~. 2. "'.%',.. tO\Dld tlln tic!ent radar data utetedrl.ar an 00 ot t.hU aightiDI tb.-.!ore, A'liC 1a traeJed Dau Sheet. Tld.8 C.t.r realises the ..,. dlhUnl \oolc ~tour month8 ACOJ however, it t!iiradar . ."9.)..-l'~ar the fact. of the aigbtiug, UIC l \b... intorut!on provided by tMa lorm .the Air fechni Cet..r feela that. a loglcel epl.anat.ian can be FOil mB CO~nt.\NUI~G GENEll.tL BARBA~A P. 1-tANAWALT Asst. Ad;ubnt: UNCLASSIFIED OPnCI.U. PIL& COPT A.)IC f'e,_ I Cite l1 )1,. It) Air P'orc-e-WPAPB-LU JlJL 52 JUUI ELECTRONICS DATA SHEET (GROUND RADAR) The purpoee of chba qucsdooaaire 1e co provide cecbolcal data for e~aluadoa the report of an unusual radar carsec or uack. lc is requested char h be completed aa accurately a When noc fllled ia, che form is Unclassified. The reporcina officer wlll use hia owa judgemeac as co wbac desree of claasification b required. lc is preferred chac che anaweu co che qucsdoas be rypewrlccea, however, lf h wUI es pewee cbe compledoa of che form, che answers may be prlaced la lak. U addhloaal apace is aeeded, use reyerse aide of form. 1. STATION OBSERVING TARGETa 2. DATE Of THIS REPORT: tcAJ VA, R AcE' PL. A,..} T Organlaot._n 3. DATE TARGET OBSERVED: Day Month Y oar Local Tlmo 0 Tlme=Locol 1)2 3 s-'" C.ST Tlm .. z OX 3.r 5. EXACT LOCATION Of STATION (COORDINATES): 6. OBSERVER OAT! (LIST EACH OBSERVER) Month v .C. HAMEt..RANK AND ORGANIZATION OF REPOtcTING OFFICER: Rani. Duty Ho. of Yoora Exp. In Rocior 7. WAS A VISUAL SIGHTING MADE BY ANY PERSONNEL OF THE STATION? YES 0 NO IF SO, GIVE NAME AND RANK OF ALL. P!!RSONNfL MAXIHC A VISUA INC AND A BRIE~ 0 ~IPTION O F ' H"T TH E Y SAW% FM COMDRADIV 19 CARSWELL AFB T TO COMDR ATIC WRIGHT PATTERSON AfB DAYTON OHIO I 7DI 1416. PROJ BLUE BOOK, REF URMSG A FO IS AS FOL. SLIPS WERE AT EXTREME RANGE I Of RADAR AND OPR COULD NOT TELL WHETHER THEY MOVED I N RANGE BUT THEY DID NOT MOVE IN AZIMUTH. BLIPS DID NOT CHANGE SIZE. BLIPS DISAPPEARED INTO NOISE AND DID NOT REAPPEAR. RADAR OBS THEN ATTEMPTED TO PICK THEM UP ON TAIL RADAR OF ANOTHER B-35 ACFT UNSUCCESSFULLY. RETRNS Of NEAREST BLIP WERE VERY SHARP COMPARED TO B-36 j TGT OTHER BLIP WAS JUST ABOVE THE NOISE LEVEL OF THE RADAR. DO\VN GRADED AT 3 YB.\ R t N't' t:RVALS: DECLASSIFIED Ar'"~ER 12 YE ARS. UN CLASS\ FlED HAVE YOU HEARD OF ANYONE NOT AT TliE RADAR STATION .!t:tKING A VISUAL SIGHTING AT APPROXIMATELY THE SAME TIME THE RADAR CONTACT WAS MADE? 0 YES NO IF SO, GIVE NAME AND ADDRESS. RADAR SCOPE PHOTOS: WERE PRINTS OF THE SCOPE PHOTOS FORWARDED TO THE TRACK DATAs WHAT WAS TH! NUMBER OF THE TRACK? , WAS A PERMANENT PLOT MADE OF THE TRACK AT THE TIME Of' THE OBSERVATION? 11. WERE AIRCRAFT SCRAMBLED TO INTERCEPT THE TARGET? 0 YES If' No IF SO, WERE THE AIRCRAFT BEING OBSERVED ON THE SCOPE AT THE SAME TIME AS THE TARGET? a YES CifHo 12. WERE ANY NEARBY RADAR IN$TALLATIONS QUERIED WHETHER THEY HAD OBSERVED THE SAME TARGET OR TRACK? IF SO, WHICH STATIONS? ~.:!.!"::n~ll ..... WAS THE TARGET OBSERVED C'N SEARCH RADAR? llfvEs 0 NO IF SO, WHAT IS THE NOMENCLATURE OF THE EQUIPMENT? (T~il ountJd o~ 5-J~ U. WAS THE TARGET OBSERVED ON HEIGHT FINDING RADAR? IF SO, WHAT IS THE NOMENCLATURE OF THE EQUIPMENT? HAVE THERE BEEN ANY RECENT MAINTENANCE DIFFICULTIES? a YES IF SO, DESCRIBE. WHAT TYPE MODULATOR (I.E., SPARK GAP, HARD TUBE, ETC.) IS USED IN THE RADAR EQUIPMENT? S?.rd Tu':>~ WAS THE AFC (AUTOMATIC FREQUENCY CONTROL) CIRCUIT OPERATING PROPERLY? ~ YES 0 NO 19. H.\S INTERFERENCE FROM ANOTHER RADAR SET BEEN OBSERVED RECENTLY: 0 YES ~NO COMMtN TS: t>ECLASSIFIED AFT.:~':~\ .. -, :fAU AT IC FORM 331 {REVIS&D 2S NOV 19U) UNCLASSIFIED 19. ARE PERSONNEL FAMILIAR WITH THE EFFECTS CAUSED 8Y AN INTERFERING SIGNAL? 20. ARE PERSONNEL FAMILIAR WITH THE E~ECTS OF ANOMALOUS PROPAGATION (DUCTIHG EFFECTS) AS THEY PERTAIN TO THIS TYPE OF RADAR? .,.-YES 0 NO 21. HAS ANOMALOUS PROPAGATION (DUCTING EFFECT) BEEN OBS~VED TO EXTEND THE RANGE OF THE GROUND CLUTTER OF THIS RADAR AT THIS SITE? 0 YES li("NO 22. WAS ANOMALOUS PROPAGATION (OUCTING EFFECT) THE TIME THE TARGET WAS OBS&RVEO? 0 YES ENDING THE RANGE OF THE GROUND CLUTTER AT 23. HOW DID THE TARGET AP'PEAR IN SIZE AND SHAPE AS COMPARED TO CONVENTIONAL AIRCRAFT TARGETS? PERFORMANCE OP TARGET: REMAINED CONSISTENT IN SIZE SPEED WAS CONSTANT FOLLOWED CONSISTENT TRACK FUZZY COMPARED TO AIRCRAFT SAME AS AIRCRAFT TARGET CHANGED SIZE RAPIDLY SPEED WAS VARIABLE APPEARED, DISAPPEARED, THEN REAPPEARED IN NEW LOCATION SHARP COMPARED TO KNOWN AIRCRAFT TARGET 2'-WERE OTHER TARGETS (KNOWN) OBSERVED IN THE SAME GENERAL AREA, A'VAPPROXIMATELY THE SAME ~T THE SAME ALTITUDE AS THE UNUSUAL TARGET? 0 YES liVNO 26. WHAT TYPe INDICATORS ("A" SCOPE, .. B .. SCOPE, ETC.) WERE USED TO FOLLOW THE TARGET? nan sco pa 28. 'ttH AT WAS THE FREQUENCY OF THE TRANSMITTER? 29. DID ANY OF THE OBSERVERS HAVE ANY OPINIONS AS TO THE NATURE OF THE TARGET? 0 YES B. NO IF YES, GIVE THEIR NAMES AND OPINIONS BELOW. ATIC FORM 332 (RRVISitD 25 NOV l9U) UNCLASSIFIED IF SCOPE PHOTOS ARE NOT AVAILABLE, PLOT ll fAI<GET TRAC K AS ACCURATELY AS P OSSIBLE. THE TIME AND ALTITUDE (IF MEASURE D) FO R F.AC.H P OINT PLOTT ED. PUT THE NE CESSARY RANCE SCALE ON Tti E 01 ACRAM. ATIC PORN U2 (RI&V18KD U H O Y 1951) 31. USE THIS SHEET ,OR AHY COMMENTS, OPINIONS OR ADDITIONAL DATA NOT COVERED BY THE QUESTIONS. 1 . Visual obs-9rvltion was !UJ-9 of tln t.:'.I'.:::3t b~,. th~ ro.1d.:lr observ3:-s prior t o oos~rv .ti on on thg APG-41A. ,\nd visual obs~rvatio&l ::a3 t>ein3 m:ld~ a t t hd sa:t3 tir..~ a-.~ tht3 r~d.:u-o~serv.at. ions. Azir.tuth of targ~t was the sarag in bbth cas~s, a11 i oos.n-v3rs aro C-3rt:J.in th:J.t the visual t:u-6et a:ld rad:u-tar,Sdt. .:~r3 t h e sa."":e ooj act. JJOD Dlr. 3 .1l) UNCC\SSirl ATIC POaW U2 TO: . ATIAE-5 TBRU: ATIAE