UAP Reported at Sandia Base, 1948-1950

HEt\DQUARTEP..S • DETACHMENT D 1100TH USAF SPECUL REPORTING GROUP Campbell Mr Force Base Camp Campbell. Kentucky 7 April 1949 ~?>'2.>,, SUBJECT: Security :E:nspection TOt Commanding General \ Sandia Base Albuquerque, New Mexico ) ~o lo' Q,0~ ~4 1. Reference is made to secret letter. your headquarters. dated 1 April 1949• Subjects Security Inspection. 2. a. Guard Orders have been amended directing that the elec­ tric gate be closed between 1700 hours until 0700 hours the following day. b. Looks have repl~ced the bolts in all inspection access gates in the outer fence. c. Inspection ports on both bridges are now pr ovided with locks. d. The final draft of our alert plan has been reviewed and will be published and distributed for study to operating personnel. It is desired to point out that the alert plan is incomplete. !. stockpile custodian has not been assigned here; his part in the alert plan has been outlined only. Furthermore, since the 11th Airborne ' Division is not in place yet, only temporary arrangements for defense have been made. Final form of the overall alert plan will be sub­ mitted to your headquarters for approval as soon as conditions will allow. ·1n the interim period. it is felt that the temporary alert plan we have prepared is adequate. A copy of this pl an will be dis­ patched to your headquarters in the near future. e. !11 jeep radios are now installed in jeeps. r. ~lthough not entirely satisfactory. radio oom.munioation with the Camp Campbell Military Police has been in effect for some­ time and was in effect at the time of the Security inspection. .Pe~­ manent arrangements for radio communication with Camp Campbell Military Police are del ayed panding the arrival of radio frequency crystals that fit the Milit ary Police net frequency. NND 58378 Short Title -~-:L~-=-~--=-- -~/_f­ SHORT TI~ffhBI , ~ ,., .., ,. ' ., ww o . ..2.::pages, copy / - ~ V I . # , series__ ..; 7 April 194.9 • SUBJECTs Security Inspection g. Pressure has been exerted to get the Post 'Ehgineers to keep the dra.inage system. clear and to take measures to check the ero­ sion. These efforts will be continued but lit tle progress on erosion control can be expected until the rains diminish. Ditches have been filled, dirt moved and replaced, native gras ses planted, but the rains return too soon and much of the effort invested is therefore wasted. Plans a.re prepared f or an interim erosin control effort, and a stud;y is being ma.de to estinate the cost of resloping the cuts in order that the rainfall mq be drained with less damaging results. Initial estimates run in the neighborhood of twenty thousand dollars (t20,ooo.oo). 3. With the exception of halting the erosixm, all deficiencies listed in the security inspection report have been cleared away. It is therefore requested that the monthly report of action taken re­ quired by cited letter be discontinued. /(~4/./?L_ RICHARD TI' KLIN.!!i Lt Col, USAF Commanding NND 58378 SEGRET • HEADQUARTERS SANDIA BASE Albuquerque, New Mexico AFSWP CLASSIFIED DOCUMENTS LIBRARY Fl LE NO. 45~. S­ SUBJECT: ll'T.-;,J)..o;y ~·o ¥ NND 58378 e:i: 10 August 1949 Dr. L1nooln ~ InDtituta of 'Meteoritics University of New Mexico Albuqu.erquo, N. :t:. Doar l.1ncoln: I a::n lnclos1ng two copies or the report you asked tor, fllld hope that they oerve their purpose. \'lo Jiave mado a preliminary ez:eminntion ot tm elghtaon collact1ona token at nine locatione on my,l!onde.:,• 'l'uesday trip. !lbere was a large number of coppor-boar1ng pe.rtiolee on one eolleotion (ll-104L) taken on Higm1ay 84, seventeen ·mles north ot E1gl:may 66 1 and aoa.ttered occas• i onal particles throJJ.ghout the series. The collection teken at tho Blt"lle location imcodiately' following R- l04L eho'\YD practically no copper. A 1orge l)art of the n - 104L is of a granular mnterial untamiliar to us, and , the copper indioat1ona ori,:.inate principal ly 1n l'lhat are e.pparontl'1 aggregations of finely (ona .. meron) granular material of overall sizes in tho neighborhood of thirty microns. Some cop_per _part! ,lea, hor.­ ever, appear to be solid nnd o,Paque. The passage of t-, automobiles while this oollection uas being made is a complicating fe.ctor. It is hard to aee how they mieht he.Ta been a eourco ot coppor, ho,raver, unlean it nao a question of stirring up aoI!lo :trom dust on the -pavement. We intend to do some :1"urther chemi.eal work Tii th theee colloctions, but I doubt if muoh nen relevant information 11111 be obtained. Hy tentative conclusion is that no ~idcspread significant dispersion or copper-bea't'ine; particles ,vas present in tbe atmoaphere in the rc"ion covere.:1 at the timo the eollcct1ons wore made. l,o det1nita statel':lcnt is possible about the one heavy copper collention: it should be prosumod to be of local origin until come evidonee to the contrary ic 'found. ~e route at tho collocting trip included Paatura, Santa noaa., junc­ tion of Routes 66 and 84, ond Las ·Ve.:;aa on J!ondey af'ternoon. On Tuosdey morning it included. Las Ve3as, Canonr,1to, Glorieto. end ecos. Yours vory truly, mx,~ o.ttaobments (2) NND 58378 M ­ ' R/D- tw 8-10-49 AN AT'l!EMP? 'ro coU.roT AnBCP.NE PAU'ICLES A'3SOOIA'l'ED fJI'l'iJ THE FIREBALL OF JULY 241 1949 By • n. Oroztor and Ben x. Seely HBTHOD A 'fireball was raportad to have pasaod ovor the general noighborhood of Socorro, Uew Uexi.00 1 at 8:26 p.m. 1 J'uly 241 1949. Impaotment equipment, develop9d in conneation 1a th the sarosol research proJect ot the New Mex1 co School of !lines, was available, and it was decided to make systematic collections ot airborne me.ter­ - iel. in the hope ot obta1nill8 material that could be associated .-1th the t1reball. For the present report it is suftio1ent to state that the equipnant processed air at the rate ot about J4 11tera per minute, the particles being separated f'rom the air by -impactment against en adhesi'f9-coate~ plate in an air jet. Appro:d!natel.y ninety per cent of airborne particlee with dianeters greater than one micron are collected. Tho adheeive used. on the collecting plates (mcroscope slides) waa a glycerin­ gelatin tlixture w1th an a.dd1tion or rubeanic aeid (dithiooxamide. ) 'l'lus reagent was used to enable identifioation of copper or copper compounds; it also enables identification of nickel and cobalt. After ?C:lking the eollaotions, the slides were covered with e. Saran til::l, after which thoy were exposed to strong aomonia vapor for r1:tteon Jninutes to effect partial ao lution or any copp_er or copper oxide parti­ el.Gs. R ESULT S '?he first oolleotion was made at 10:00 a . m., .ruly 25, about thirteen and one­ he.lf houra after the fireball was seen. The air wan te.lcen about twelve teet above ground lovel, on t he Ol!!'.IJ>UO ar the School ot Uines. Tho first run was i'or three min- , utes , ll['COosaing cbout 102 liters of air. Sevoro.l large particles wero :round in it that gave J)ositiva co pe.r teats. In at least ono or these the copper reaction was aeen petore the cn::mx>ni c tro~ont, indicating the presence 9f at least a trace of a aoluble copper co~pound. The sizes of particles aoon in tho first oollections ranged up to over one hundred microns in the largest dimension: the largest particles gave tho impression o~ bein.g f'r8gl:lents or a so:i:ievm.at f'ibrous material, llith the smaller ~~ NND 58378 Page 2 dbension oi" ,the o-rder o~ twnty or thirty .:nicrono. There were no Br:lall partielee, that 1e, no particles 11'1th n iruuiml1!11 di?DeXUiion below 15 microns. , J'ollmring tho :f'lrat colleotion, ,additional oolleotions 1f8re nade , tindor aimi• 1ar conditions. over a period of elght daya. The aooco.pann,ng table su:n:iarisea the colld1t1ons and copper counts ror all tbese collections , including tho first ono described above. nU!!lbor of the ru.ru, wero tor periods lor.,;or tfum three minutes, but °'he oouhts have, 1n 'tbeee cases, been reduced to the threo-:nnuta equivalent. Olio eolleetion showing oevora.l large copper indications , tekon J"u~ 25, ia omm:1ttnd fron the to.blo because it was damaged in courae ot a teai for radioaotivity by exx,osure of a nmlear track plate (vrith negative reoultn) end a det"inita count oOllld not be made . The counts are exhibited in tbreo size claeRiflcations, end attention is directed to tlie :ta.at that particles in the smallest s!ze croup (l to l5 microns) e::-e practically absent trom the early oollectlona, mil& in the later collectiow,, particles 1n the largest (.30 mioron.o) 8Ii.d middle (15 to 30 microna} groups have become cp;ite esoarce. At the same tine, the counto have beccte quite large in tile :.s:ncllest aizo group. SIONIFICA~CE OF RESULTS If 1 t were possible to SflY that particles giving a copper test are generally very rare in eollectione near groimd leTel in this locaJ.lty, the above facts t'.Ould bo highly s!gni1'1cant. It l1appens , however, that collections have been :-:,ode at Socorro over only- a short period, and not .muoh e.tten1i1on has been given to !denti­ fica.tion ot copper coJ:lJ)ounds. ::aowever, after the copper indieetions had been round in the present sories of: collectio•,s, some collections were round on file that hod been made on plain glycertn-3aui.tin on july .1,, 1949. -These r.are oovered ,nth the Sarun fi-lm and rubeanic eoid C!Jld an::.on1a were appliod by d1 tfusion through tho ·ttlm. A few copper indications were found, al!nost all the i:e.rtioles being in the 30 micron size group. Some other co11ection.s were made early 1n ~uly tbo.t will be e::lt8!ninod tor· 'lopper when they are treed !"roe other tests. lil add1 t1on, oce~ional colloot1ons will be examined. tor copper in the futll!'e, and 1t may be possible eventually to add so:neth1ng to tho information now presented. COllCLUSION6 REGARDING COPPER In view Qt the above fa.eta , it i,eem:, very hazardous to draw any: definite con­ clusion associating ~he coppe~-bearioo perticlos collected with the fireball or 1uly 24. Th.are a till is, hwoTer, a residuum or poasitdlity ot such associations men 1 t is conoidored th c.t partic!.ss ot 1hc smallest s1 ze group did not appear in largo numbera until some 35 hours at'ter the po.esege of tl;le fireball. NND 58378 ~ ,,.~ ;..=- - • tk-a~~ '?ABLB ...,.. __ --- CountG of Copr,er Partieloa ill Colleetiotu, at Socorro During Per1o4 lul.:y 25 to August l , 1949 f ' - (Roduced ~o Particlen per 102 J.itera of' Air) Comr Counts ind* l • 15 15 • .30 30' Collec.Timo Elapsed Direction M1c1·on YJ.cron .U.cron.s Date Hour time knots Range Range 7-25 10 m.. 13. 5 NN\i • 9 l 4 l .. 13.s 0 2 2 - 7- 25 2 Rf 17. 5 , '1 4 l. l .. .. '1 , l 0 0 ' 7-26 8~ 35. 5 tn 8 0 0 - 9 lit ft) 0 0 "' "' lit 'It "' 0 2 2 7- 26 2 I'}.{ 41. 5 ~-20- -::> 0 ' • - 7 18 1 0 lit "' "1t 'ft <-22 --> 0 " 7- 27 7:.30 '11. 0 Im • 8 l 0 0 '7- 27 1:3() PU 77. 0 NR • 6 23 0 0 .. <ft "' 8 0 0 7-P,8 7:30 AM 95.0 r,m, -3 0 l 0 .. .,. 0 • <'-28-.> '1-29 7:30 ~ 119.0 s -7 4 0 0 7- 29 4, .,/1,: 127.t> ESR -10 (f---28--> l • • 15 0 0 " 7-30 10 14:5. 5 SE - 4 2 0 0 "' .. • 8.3 l l 'l• Jl 10 Rl l.69. 5 SSE • 5 4 0 0 lOf.,JU • + • 3 0 0 10+ A4 2 0 0 - ♦ "' 8-1 9: 30 ! 19,3. 0 N - 6 17 0 0 • • .. 6 0 0 "surt'ace ind recorded by eather Station o.t time nearast collection time. NND 58378 .. .. Attention is called particularly to the l arao !lumber ot small particles in one at the 145-l/2-ho-.ir collootione. The actual nl.I!lber in the colle'ltion was 140, tor the r ive-oinute run. l.!ost of these l'lere in the size range of' tTJO to f1ve microns• and the principal difficulty in assoctattnc them 111 th the fireball is that a five­ micron par\1cle cannot tall J!lUOh more tho.n l0,000 foot in 145. 5 hom-s. These part1­ olea could have ccr:ie down from a greater height only it' sol:!& downward motion hfld tc.k:en place in port of the a1r 1nvolvet. It should be oantioned. that collections were t aken during tbe at'ternoon of Ju13' 27, at several pointa eouth end east ot Socorro, tbs fartb.eot being near Binche:a. These oolleotions ocntainod pcrtiole~ giving copper indications, the :particles being i n tho •a;?¥!) range ot sizes as those collected in Socorro at about the &a.":le ti'C'.b. It is perhaps noteworthy that the cop_per-boari ng particles 1n all these collec­ tlona were of opaque material. I.oat ot the co:;,per minerals tbat h uve previously- come to our attention 1n collection• rrom the air have been oolored material, blue, green, red, or yellow. C OBALT AND NICKEL TESTS In the 2 t00 J.l• coll~cti on of J"ul.y 26, three quite re:::iarkable particles were found that save very strong coba1t indications. The particles were apparently por­ :reot spheres (at l east thoy were pori'eetly circul.ar in cross section), twelve mic­ ro!ls in diameter. The reaction with rubeanie e.eid, after at!nOnia trentmant , pi•o­ dueed a dense yellow-ten halo, eixty microns 1n diameter. The color v.ao not quite so clear es with pure cobalt: the e.ppearance sU;;gestin.g e. high-cobalt com,vosition with so~ metal. prosont. Such particles are quite uniqne i n the axporionce or the present. , It' these particles wore of meteoritic orictn they cwld, in tho absence of verticul oir IJOV«llSnt, have f'al:len a d1stO!loo of the oi·der ot 20, 000 feet 1n an i nterval or 41. 5 houra. Two particlse giT1ns nickel indication.swore round. ~a is quite nomvl, llo ,­ ever. It anything, the number is smaller than x::ight have been expected in material of aurt'aoe ori<;in. The collections ware not given acid treatnent: additional nickel indieations might h &Te been 'i'ound it t his had been done. A oUOGEB TION hile the r&aul.ta o!' the present investiga:Uou ahould be recarded as negatt-vo or,inoonolusive, it i s desired to call attention to the faet that a coan.s ia at hand that obould r..al:a .PQAsiblo a definite demonetration of tho presence or absonoe ot cop­ per :particl es asaod.ated with events or the July 24th type. rartlo l.e collectlon equipment, operating on the s .:mie principle as that used in the i:resont inTestigat1on, and der;igned tor airple::ie installation, is on hand and 1te suco&esful operation has been dooonstrated in numeroll s sligh:ta. Provision NND 58378 ...... ..,,,,,, t .. could easily be made ror quickly nountins this equi~ent in an airplane cap&ble ot o.s~enaing above the 40,000- toot l evsl, wllieh couli teke otr soon otter an event ot the J'uly 24th kind, and fly a pattern that would ineludo nitl:. reasonable certainty sO"C!e or the nateriol originating at the neteor u-ajectory. A g_uiek approximate deteroination of the tTejeetory wo11ld be required, of course, Wld 1f winds aloft wore or considerable strength 1 t muld b& nocaseary to make due allowance tor ttlc:t:1 1n planning the :flie}lt. UOT ADDED <l-l AWUS1' 101 1949: Ao this report ,1aa being 1'1n1shea, an ntte:ipt naa :oade c.t on. airplane oollection 1'ollOm.ng the event o~ uzust 6. The oolloetins eguiPmQnt ,1as installod in a B-25 from Kirtland Field nnd on the o.f'to:::-noon or .~ugust 8 , a flight wao ,u1e l!.«lich a was hoped m18ht intercept somo of the meteoritic material. An Interval or 41 hours had pussed before the take-oft, and the :ma:dnu.n alt1• tudo roached waa 2.3,000 i"eet. A rough attenpt was :!lade to include air tho.t wae under the trajoctory, but distanl'}eo or sevoral hundred miles nore involved. A few oopI,>o:..~ ind:!cations were obtained, but they seemed definitely to be associated mth material of surface oricin. l,o nickel or cobalt indications were ~ound. AD. 0lcJ1or­ ate stud.7, which m.tq require more upper air data than ls available, should be oude before 1 t is decided metber or not the t'lieht di a aotue.1ly include air that 8hould have borne FOrticles trcm tho etoor trajectory. NND 58378 • ' e Au,..i:rust 17, 1949 '1'0: Colonel Doyle Rees FROU: Lincoln 1ePas SUDJ"EnTs Momaloua J.uminous Phenomona. Sixth Report{attempts to colleci volatili­ sation woduots trom ~en fireballs) (1) In an earlier repori it has boen pointed out ihat in spite ot eir SDd ground searoha 1n early February elong tlle nll detem.1nad earth-trace ot the green nreball ot 1949, ianue.ry 30th no :tregmenta of this ti:roball were recovered. 'l'here re::iatnod the _poso1t1lity "that tbia fireball had been so ooopletely Tolatilizod during tl1sht that oaly tine dnat !'ram it filtered down thru the atmosph&re. S1noe, fo::- several reasons, 1t eeerced ~ore probable that a uoh dust would consist chiefly or copper or a copper alloy rattier than ot the ferro- • magnetic aubstanoes found for ordintn-7 metoorites. the oethodo habitually enployed by metooritic1ots fo1" the c olleetion at •come duat• ( separation ot the dust trom the air by uBO or eleetroI:Ja.Gllets or permanent magnets) muld not be appropri­ ate tor use in conj]_eet ion with tho s;reon i'ireballo. It was there.tore decided to cn11nt th~ aid ot Dr. illiwn Orozier, \-d':l.o waa knownto 1'.ave developed a novel 1mpactu~.•.; duat collector f'or UDe o_n the ABrosol Projoct or tho li'ew l!enoo School of' l!ines. (Tho 'Wr1ter hed bean elo.:sely aasooiated, in 1943-44, with Dr. Orosier at Km1 JJenco Proving Grounds mile .orking on saboted. and prorlm11;y fuoed shells and kne\7 ·that ho hrsi aat1sf'e.ctory clearance.) Dr. OrozJ.er not onJ.y agreed to partio1­ pnte in a cround- 1.ovel search ~or dust pos~lbly put doun by the f'irebe.ll of' ~an­ uary ,30th, but mede the valuablll sugeeation that dust oollect1oll.6 be made on plene flights routod bti.ek and rorth at high altitudes through the air benoath green t'1reball paths as soon as possible after t"ireball tall. ln this manner eonta:ni­ nation ot ttle aust colleetioll8 by tar1·eatr1al particles '10Uld be reduced to a minimum. No ir:mediate application Wat:J made ot Dr. Orozter•o dust collection teohniquee• in pa1-t because ot th a m-1ter' a re11urn to fUll ttme ncade.!.11.c work at the m~ on Febru,47 8~h and in ;part baoause o~ Dr. Crozier's other ;rooec.rch e.cti'Vities and the interrUJ.)tion11 in Reoearch and Develop:iont D1v1B1on work i.nei­ dent to the A.E.O. 'a tek1ns o'Ter the ilbuqunque quarters or the Division. (2) When it m,.s determ.i?l9d th.at the green 11reball of J\lly 24.tll liod descended 1n. the im»diate vicinity o~ Soco:L"ro, it was decided to ask Dr. Cro--'1er to attempt colleotio:ns even though he and bis start were then eneaeod in tbe tinal stages ot mov1na from Albuquerque to their new quarters on the Campus ot the New 1-l&xieo School of 1!1.nes, A long distance ¢all to Dr, Orozier on J'uly 26th brough.t the weleorna news that be he.d been alerted by an appeal for observations issued by the Institu~ of !!otaorittos on tho evening at July 2,th end ha.d al.rood7 made du3t collections on the campus at Socorro on the morning ot J'tily 25. These collectiono, to Dr. Crosier's en.dent surprise, nre found to oontcin not only the tlrst coppe~ particles he hod 'found.in air duet col1-eot1ono bu't these I>~ticles were or unusuallt large ai!Be - up to lOO microns in maximum dimeneiorut. On roceipt or this exciting tn:to:ro.ation, a party 11u 61apatched t"ram 17th Diotrict o.~.I. Bdq_e. to confer with Dr. Crozier ond to~makc e field search tor the i'irobcll ot :Tu.ly 24.tb. This part~ conBisted at Uajor Charles L. Phillipa (courteously ma.de avaiJ.able tor 'the trip by Colon.el Harold ~ Gunn, C.o. ot Kirtland Field) Hr. })aul Tatt of the li.S. ,eather Bureau in Albuquerque, S/A la.ck .Bolino nnd the underaigued. A conterenoe rtth Dr. Crozier end er. &,n Seely ma held on the School of w.nee cam;pua in Socorro bet\lOon NND 58378 10:00 - 12:00 A. J.1. on .Tul.y 26th. At this eonterenoe it beceme ep:parent that Dr. Crozier wao 1nollned to attribute the unuauall7 large copper fragcenta collected on .Tuly 25 at 10,00 A..l!. (-.bich because ot their size could not h&vo been blown "fer, tar by aurtace 111.nds•) to particles blO\l'D. off the root or out ot the auttere ot t he Aseaying Building on the Campus. In answer to e. queation from the writer, Dr. Crozier replied that he would oone1der this pose1b1llty ruled out it copper pm-tioles ob.owed up in colloctiono cade in t.he open oouum at considerable distance• trCX!l the Campus. It wao tharotoro recom?;.ended th~ such oolleotions be made @d Dr. Crosier and t•.r. Seely rigged up a atonge battery combination and B!llall D.O. J!!.Otor driven 1DlJ)aotmont collector- 11h1ch were loaded into the o.s.t. etat't car and driven out through San Antonio, Carthage, and B1ngbom, No •enco (this route passing, in ~ . Taf't' o opinion, throueh the region where pnrti~les tran tile tireball ot 1ul7 24th woo ld most probably have been oarr1ed by the Tery light win.do provatlins in the region ainee the ino1­ dent.) Four ot tho collections mode on thio trip W81"$ examined on tho eveniDg ot 1u.l.)- 26th by • Ben Seely an4 all were found to contain copper particles 1nd1stineu1chable trom :those colleotod. in Socorro at about the omne time. - (3) Pull detail.a on the mathod.e ot collection enployod by D:t-, Crozier end Mr. Seel.T and on lata:r examinations of ~e dust l)Eµ'ticles collected af'ter the graen tueballs or both J'ul.7 24th Cl1.4 August 6th are given 1n Dr, Crozier•• i-aport (R/D - tw, 8-10-49) copie11 of whieh are hereto appended. Dr; Crozier' s tenta\1ve oonolusion trar:i study' ot the collections mal.e,not only in eonneotion with the incident o~ .July 24th, but also that o't Aucuat &tb, ts that •the reBUlte ot the prosont inveot1gaUon should be regarded as negative or inconclusive,• From anelys1a or hie r~ort (R/D - tw • 8-10-49) end trom. several phone conYer­ satlona with Dr. Crozier, it io th e writer• belief' that Dr. Crozier was led to the abow conolwsion by the tollowing taote listed below 1n docreaelng arder or iq,ortance, md aooa:;ipanied by er!tioel OODn8ntat ' (.3.1) 'l'he d1scoverz by tests t:iade on or about kpt l of ., a few oo r indications~ 1n dust collected at Socorro on J 14 l.949 i .e. ten dgre betore the men fireball 1nc1den, ot J'uly 24th. Dr. Croz er baa 1n1"omed the writer that tbs oolleotion ot July 14th wns ·care:t'lllly wrapped up end could not have becom conte?!linated by copped dWlt '1h1oh blew 1n through the open win­ dows ot the n.D. &J>. Building at Socorro attar the 1no1dent ot July 24th. I!o'7­ tner, there remains the poss1b111ty- that an 'Qllol:eerved or unreported green t ire-­ ball occurring in the Sooorro neighborhood ehortly before 1uly 14th put down the copper dust round 1n t.be July 14th colleottaa. To one tccn1l1ar with tb.c al.!nost uninhabited country, around Soeorro md t.he tact that green tireballe aa bright as the halt mon occurring at timea as favorable tor observation u '1 :)) - 8:30 P.u. have gone alriost unreported, 1t aecms quite likely that a green :t"ireball that tell arter midnight or during the daytime or while most or the s1.7 was overcast tlisbt go entirely unroported.) (:3.?.) The d1aore ane between the co.!!ll>uted an! observed rates of J.escent ot .er,· tine copper particles. A.9 Dr. Crozier notes, such d!screpon­ c1e• are Wl.deratandable •it eome dor.nward motion had taken place in part of the air involved.• Preo1sely wch dovm":18.rd tl.Otion oocurred in tha air near tho real paths ot the f'lreballs of 1uly 24th and 111-rost Gtb tor ttleoa to.Us were nenrly Tertioal. ll'urtbonloro tho best obaervatiOllB ot tho endpoints of these tireballa ple.ee 1hat ~ .T'117 :?4th at a bight ot ltl-l2 miles and that ot A!Jeust 6th at 5-6 milsB. 'l'he downward directed bill1st1o head wave therefore coald Yery easily have carried Dr. Orozier'a 145 hour particloe to mthin 10,000 teat of the earth at NND 58378 .. b IJ • the time of fall. Sinea we cannot assume complete stagnation ot the air rnu,ees 1n the Sooor1"o neiBhborhood tor 145 hours. it must be supposed that such air motions aa occurred were approximately compeuating and resulted in the return ot Dr. Crozier' s tiny •r1ve-.:u.cron particles" to the Socorro neighborhood in a.p_pro:d.mo.tely 145 hrurs. Only a detailed otudy ot air .ll!4SS c.otiol!a ror the time interval i~lTod can settle this point. ) (.3•.3) The lo continued Q: ea.ranee of co r particles (however • -as Dr. Crozier emphasizea, S'::l8ller end smaller 1n size . 1n the Sotjorro collection.s. (Preoisely sueh a decrease 1n particle size hao repeatedly been observed in connection w1th duat oolleotions believed to be ot metooritic or.lgi n and is attri b- ~ uted to the slower e.nd slower rate ot descent of the particles as their average Bize decreases. Thuo, L. Rudaux's ros'Qlta strongly indicate 'that particles :from the • 01aoob1nid shower ot 1933, Oltober 9, filtered down in anallor md Sll18.ller sizes tar 100 hours or more. Fm-ther.m.ore, tor the green fireballs ot J'Uly 24th and August 6th, U,.o nearly ver:t1eal real paths extended from alt111udtts of lDO mile& or more down almost to ground level an4 therofore optimum conditions for long continued intall of duet particles wre approached in these fallo. ) • (3. 4) !'allure or the airplane collection ot August 8th to detect ~ bor ne co ner rticles def1n1tel not ot terrestrial or1~1n. (How&Ter, the airplane eolleotiona vero all made at great distanoee hundreds of ailea) rrom the Vaughn region in -r.-hir.h tho fireball of Auzust 6th i"ell; and, ea Dr. Crozier points out, at the mo:.nent 1t can not be determined "whether or not tho :tlight d1d aotuall,7 include air that should have borne partialee .f'ro:n rmteor tre.jei:,tory. w In this connection the results a1luded to in para.:,"'!'aph 4 , belcnT• may be or considerabl e aigniticonce.) (4) At the ttmo the airplane eolleotion of :uguet &th was plamied the writer reoamnended not only tha.t the t'l1ght traverse the area fram Vaughn northward to Raton and· then NW-ward into the Durango, Colorado re~ion (a reconimandation based on advice received trom l!r. Po.ul Taft of tbO u.u. eathor Buroan) but aleo tb.a~ .s1mu1taneoualy a ground search 1th the portable i npaotmcnt dust collectin,z oq_u1p­ ment rigged up on J"uly 27th be run i'roa Va\l8hll through Future. to Santa Rosa. Tlle latter po.rt or thin reoomre~mdation was rollowed by Dr. Crozier l'Zho reported on the results obtained in hia letter to me under date or August 10. copieo ot which are hereto attached. Dr. Crosier' s letter makes clear that ground collec­ tions in the subt1nal regions or tho fireballs of both ~st 6th ond J\lly 24th resulted in the dotootion or unu.eual. aggregations otcoppor particles, .lppe.rently the copper IX1rticle aggregate o'btai.ne4 in collectioA R - l04L, m.thin the subtinal resion ot the August 6th tall was the only such a~egate rou:id in Dr. Crozier' s lenghty ground search or quet S-9. 111 aeema :particularly oi('Uificant to th& writer tbat Dr. Crozier auapoets that tho copper dust :round 1n this particular eolleot1ou R- 1Q4L ntsy have been stirred up troa tbe pavemnt on Illgln'lq 84 --­ a likely oatol:dent airfaca for dust put down by tbe green f.'lreball of. August 6th, in view or the information giYen me by Ur. T8:f't in regard to tba wind direction pre•aillng dtn"ing the hours !mediately following t llie incident. (5)8 In apito or the critical ac:mnenta m.ede in porezraphs 3 mid 4 above, the writer hes no quarrel with Dr. Crozier•• oonclu.aion that the resulta ao far obtained in the investigation of volatilization product~ possible put down by the green 1."1.roball.e are negative or at best 1neonolU81ve. ,However, I do wiah to stress noat emphatically that 1:r :tuture more detailed ,,ork shon that the nuzcer­ oue copper part1oles tound by nr. Crozier and Mr. Seely .!I!!. indud floating don ~ NND 58378 . • • ... ... .. ~ .. • ~ t'rom green fl.reballis, then the fireballs are not conventional .tSteorites. Col)l)er is one or tbs rarosl or the elements tount\ 1n.nie'teor1tea (See G.P . Uerrill• Memoirs National Aoade:my o~ Science1 vol. 14 (1925)• Table f aci ~ P• 27; and Harr1aon Brown, Journal ot Geology, vol. 66 (March 1948, ) 'l'able 1 , p . 8'1. ) In :taot, I know or no case 1n Which el'en the t1riieet particle o:r co;pper hes been reported in a dust collection eup:poeedly ot i:,eteoritic or1;;1n. In view ot present oonoorn in regard to tbe true nature o~ the green :t1reballs, nothing could exceed in it1port0Me attailll:llent ot a. definite cor..-iluston in regm-d to the origin o:t tl:le 0OJ'per particl&s detected in the eub:tinal regions of the firobulls or July 24th and .(i.ugust 6th. . . (6) The writer therefore wishes to make the :rollow1ng reco11:1?1endationa, (6. 1) That e.rraneements be made tor dust collections on airplane 'flights at altitudes or 40,000 tt. or oore through ~he regton ot the atcloaphera lying beneath the real puthil ot green fireballs as soon as possible after the occurrence ot s~h fireball 1nc1denta. Such arrangements preeupposo a wll coordinated observing network pertlitt1ng t:te epeed1eet possible determination ot the looation or the real pathl"I in the atnosphere. (Dr. Crozier and Mr. $eely have both agreed to cooperate in carrying out dust colleotion at the htghest altitudes attainabla. In Dr. Crozier' s opinion, a B- 36 or 50 should be made available tar such work. ) (6. 2) 5:!lat crOUJ1d- level dust oollect1ons be made along tho well deter­ mined earth- traee or the green fireball of 1anuary 30th, using the portable impaet­ .ment equiptBnt al.reo.dy rigged up by nr. Crozier and ur. Seely and used in the e;round searches ot J'uly 27th and ~ust 8• 9th. I:r copper particles can be recovered along this carth..tro.ee but do no, appear in colleotions made 50 miles or eo et1ey trm the trace , the z,eault -=,ul.d be ot much signiticmoe if not indeed deeisivo. NND 58378 J ~ fit J },· HEADQUARTERS. SANDIA BASE ' 1 ' ALBUQUERQUE. NEW !'?.~{98 1 \.,.. (1 0 I Tl·H.., OF 'f/ r SBOP/4 3 3 3, I L- NO, ---1--­ REFER TO FILE NO. SUBJECT: Board to Inspect Special u1eapons Facilities at Strategic Air Command Stations TO: Commanding General Strategic Air Comm.and Offutt Air Force Base Omaha, Nebraska 1 . Reference is made to Top Secret letter, your Headquarters, subject: • "Special Weapons Training Facilities at Strat egic Air Command Stations," dated 29 November 1949, Short Title: B- 3000, which proposed an inspection tour of Strategic Air Command stations to determine adequacy of station plans for Special Weapons training facilities and recommend a priority and time schedule for Special Weapons Unit assignment to Strategic Air Command stations . 2 . This Headquarters concurs in the basic objectives of the proposed board and its general plan of action. Capt . Barnes will represent the Plans and Operations Division of this Headquarters and Lt. Col. Olson, Commanding Officer of the 515th Aviation Squadron, will represent the 8460th Special Weapons Group . I t is not possible at this time to comply with your suggestion that the 8460th Special Weapons Group be represented by the Commanding Officer of the Special Weapons Unit scheduled for assignment to the station being inspected . 3. It is recommended that the work of this board be supplemented by a similar board , to visit the station con­ cerned about thirty (30) days prior to movement of a Special Weapons Unit to that station. This second board could then verify the rate of progress of facilities preparation and the adequacy of the pl ans at that time , and solve many of the administrative problems inherent in the transfer of \ \ ,e ' NND 58378 v • THIS DOCUMENT CC' ,s,srs OF ___'3-::_PAG F S' COPIES, SERIES /c;:_ NO.-----t ___O (' Subj: Boar d to I nspect Special Weapons Facilities at Strategic Air Command Stations any unit to another command and station. It is suggested that this second board be empowered to recommend readjust­ ment of movement schedule as circumstances indi cate . FOR THE COMMANDING OFFICER: D. H. G1'l.NN .._ LCDR USft Executive Otti,.,.., Di str ibution: la&2a - a~dressee 2 NND 58378 NND 58378 • I I B/L :from Sandia Base to SAC, dtd 5 Dec 49, subj : "Board to Inspect Special Weapons Facilities at SAC Stations SAC 353 (5 Dec 49) 1st Ind D02C HEADQ,UARTERS STRATEGIC AIR COJ:lM.AND, Offutt Air Force Base, OIIY:lha, Nebraska I 9 LJ EC 49 TO: Commanding General, Sandia Base, Post Office Box 5100, Albuquerque, New i~exico 1 . This headquarters concurs, in general, with basic communica­ tion . 2 . Reference paragraphs l and 2 , basic communication, inspection board has completed inspections . 3 . Reference paragraph 3, basic communication, this headquarters is directing the Eighth and Fifteenth Air Forces to designate personnel from units concerned to inspect aviation squadron facilities immediately upon receipt o:f notification from this headquarters . Notification will be in the form of an information copy of Strategic Air Command request for movement of aviation squadrons . Your headquarters will receiv:e a copy of subject requests. Inspection will be completed no later than. fifteen (15} days after receipt of notification. Your command will be requested to furnish personnel for inspection teams. FOR THE COl\'.iMANDING GENERAL: 1 Incl Cy of ltr fm SAC to 8 & 15 AF 4. B. MONTGOMERY Brlgadhr General. USU' D1reotor ot Operatlona NND 58378 5pt1f?-tJ-.JtlIZ ~H.OR.1 T1l NND 58378 .... ~ ­ ). ' ('1 l-lEADQUARTERS STRATEGIC AIR COMMANb .. DO'-'...O OFFUTT AIR FORCE BASE It ti~~~~:J. , ..... OMAHA, MEBRASICA --· 'Sti"BJECT: tnapoction oi" VQC1al eapon:, Faoi11t1oa at St1:ategio .Ur Co::mtmd Sto.ttono ~'O: Coill.m.natng-Goneral Fifteenth Air Forco t!at'ch Mr orce D.!leo Cal1torn.1a l. Your attention ia 1nvitod to the inclo"Bod basic cozrllllunlcet1on ,,__ nnd first ixtdnl'&e ent tberoto. itt is requestod toot your hea.dquerters designato porsonnol to inopoot aviation aquadron taoilities of iour comm~d iomediately upon recoipt or noti~i.;::.tion fi'Om this 'heado.uarters. rotitication will 'bo in tbe form efaii in.for. tion copy of "'tra.to,zi~ • ..1:l.r Oonun:md roquost for move: ont or aviation oquuclro.rw . Inspootion ie to bo col?ipletod not lo.tor t'l)an f11'toan ( 15) de:ro aftor tecf)1.,Pt ot notiticatior • .... 111 : • .'urn1oh ;reprose:ltativc l)orsonnol tor illllpoctiona. upon your request . '2 . 'Upon coeploli10n 01· inspootlona, any di6<:,repancics noted \,ill bo ~o~ded to ~hio hoadgunrtera tocottlor Ii.th any roeoOMonlint1ons that 10uld fac111-tutc t'ronsi'er ot -subject squadrons to tll.1e comrond . 3 . Direct co~Ullication ~1th- Sandia Do.so is c.utho1·izc;l tor tho pur,POoo or coo1·ainatins tbi-s rnttor . itt CO:!lWID OF llll!O'l' UNT GmERAL LeMAY: 2 tnele l . b/l i'roI!l :..andiu to 6/..0 2 . :l-et :Ind :t.'-ro,.:s AO to Sa.n6ia NND 58378 I ., DEPARTMENT Of" THE AIR f"ORCE .. HEADQUARTERS UNITED STATES AIR FORCE WASHINGTON T H E: I N ■ PCCTOR QIENE A:A\. UaAr 17TH D I STRICT Of'FI C E OF S PEC I A L I N VESTIOAT IONS K I N:TL. N O AIR ,.O R CI: IIA■ lt, N&W M &>llCO DR/ms File llo : (24- 8)-28 25 I.iay 1950 SUBJECT: Summary of Observations of Aerial Phenomena in the New Mexico Area, December 1948 - Uay 1950 TO: Brigadier General Joseph F . Carroll Director of Special" Invest.i gations Headquarters USAF Washington 25 , D. c. 1. In a liaison meeting with other military and government intel­ ligence and investigative agencies in December 1948, it was determined that the frequency of unexplained aerial phenomena in the New Mexico area was such that an or ganized plan of r eporting t hese observations should be undertaken. The organization and physical location of units of t his Dis­ trict were mo~t suitable for collecting these data , t heref ore , since December 1948, this Distriet has assumed the responsibility for collect­ ing and r eporting basic information with respect to aerial phenomena occurring in this general area. These r eports have been distributed to the Air Materiel Connnand, USAF , in accordance with Air Intelligence Requirements No . 4, and to other interested military and government agencies . 2. Ther e is attached. as a part of this summary, a compilation of aerial phenomena sightings that have occurred mostly in the New Mexico area and have been reported by this District Office subsequent to December 1948. This compilation of sightings is not a complete r ecord of all reported observations, but includes only those in which sufficient information was available to justify their inclusion. The observers of these phenomena include scientists , Special Agents of the ·Office of Special Investigations (IG) USAF , airline pilots , military pi lots , L:ls Alamos Security Inspectors , military personne l . and many other persons of various occupations whose reliability is not questioned. This com­ pilati on sets forth the most important characteristics with r espect to each observation and evaluates each sighting into one of thr ee classifi­ cations , (1) green fireball phenomenon , (2) disc or variation, and (3) probably meteoric. 3. There is a lso attached an analysis of the green fireball occurrences in this area made by Dr. Lincoln IaPaz . Dr . La.Paz is the NW 91526 EO~JFIDE~JTli\L • . . . .. eor~FtDEr <rftAtl • File No: (24- 8)- 28 Subj : Stnnmary of Observations of Aerial Phenomena in 25 May 1950 the New Mexico Ar ea, December 1948 - May 1950 Dir ector of the Institute of Meteoritics and Head of the Department of Mathematics and Astronomy at the University of New Mexico . He was Re­ search Mathematician at the New Mexico Proving Grounds under ah OSRD appointment in 1943 and 1944, and Technical Dir ector of the Opera·cion s · Analysis Section, Headquar ters, Second Air Force , 1944- 45. Since 1948, Dr. LaPaz has served on a voluntary basis as consultant for this Dis­ trict in connection with the green fireball investigations. 4·• On 17 February 1949 and again on 14 October 1949, conferences wer e held at Los Alamos, New ~iexico, for the purpose of discussing the green fir ebal l phenomena. Representatives of the following organizations were present· at these meetings : Fourth Arrrr:1 , Armed Forces Special ',1feo.­ pons Project, University of New Mexico, Federal Bureau of Investigation, U. s. Atomic Energy Connnission, University of California, u. s. Air Force Scientific Advisory Board, Geophysical Research Division Air Materiel Command USAF , and the Office of Special Investigations (IG) USAF. A logical explanation was not proffered with respect to the origin of tho green fireballs . It was , however, genero.lly concluded that tho pheno­ mena existed and that they should be studied scienti fically until these occurr ences have been satisfactorily explained. Further, that tho continued occurrence of unexplained phenomena of this nature in the vicinity of sensitive installations is cause for concern. 5. ·The Geophysical Research Division, Air 11ateriol Command, Cambridgo , Hassachusotts , ho.s recently let a contract to Land-Air , Inc., Holloman AFB, Alamogordo, New Mexico, for a limited scientific study of green fireballs . The results of this scientific o.pproach to the pr oblem will undoubtedly be of great value in determining the origin of these phenomena. 6. This sununary of observations of aerial phenomena has been prepar ed for the purpose of re- emphasizing and r eiterating the fact that phenomena have continuously occurred in the New Mexico skies during the past 18 months o.nd are continuing to occur, and , secondly, that these phenomena are occurring in the vicinity of sensitive mili­ tary o.nd government installati ons . 4 Incls 1. Summary of Sightings 2. Photo of Sighting No . 175 w/oomments 3 . Ltr fr Dr . LaPaz to Lt Col Rees, dtd 23 May 50 4 . Graph indicating maximums 2 ~ _____-;, ; ( ~ · ---=-·~ f,,,. • iii :,1,,.. _,, \ ..t!-~­ DOYLE EES Lt C lone1, USAF Dis ict Commander NW 91526 COP4FIBE~JTlt\L File No: (24- 8) - 28 Subj: Sunnnary of Observations of Aerial Phenomena in 25 May 1950 the New Mexico Area, December 1948 - May 1950 DISTRIBUTION : ' cys , Dir ector of Special Investigations , Headquar ters USAF -J: 8:f--j CG, Ail' 1'8.oeeriel C~t l?a,&~oreeM: A.i'B;-~ , • -NPffl; Bix ec bo1 -o£ Techni ca,) Intel~~ 1 cy~ CG , Special Hee.pons Command , Kir tland AFB , New l.!exico 1 cy, CG , Ar med Ser vices Special ·weapons Pr oject, Se.ndia Base , New Mexico. ATTN : J- 2 .J-e,',,- C-a-,- Mee:ef!flste.-m;e:r:s , Eo~...A.Any~~ , 1 CO , Holloman AFB , New Mexico cy • , ~-e&ea~-t-Gr:i,oe , C8.Jft&N,~e , Mae l!I"• Dir ector, Security Division, U. s. Atomic Energy Commission , 1 cy , Los Alamos , New Mexico. ATT!l : Mr . B. o. 'Jells 1 cy , Federal Bureau of Investigation, El Paso , Texas Federal Bureau of Investigation , Albuquerque , New Mexico 1 cy , J cy, £\i r Farce Scie.nt~ke4J:Uso1y Boaz ~nite.~on Iha~ ATTN· Pr A~s.apQ Kep.J.M _ -ii~~~ffl"-8:!~➔e¥~"9tl~n-e i e&Fe.. Pe:ntawm RlliJc.a:i:~ , A~~P • H, E, LoR&e-ber--g;-&,ceecttive DiI e c bur , C~toe on G~s~gs end Geog.rerftY 1 cy , File NW 91526 ' r, ~~- ~ :\ f {{ G/ f):1.0 1:r.~~C!:j \}~, \)~1" ~L? ,.~~ l ,- .:: _i_~:!l·.~~--L ~ 1 - 1. ·\.1iI;]} .i;~ f u1m·tccl lJy the 17\~h Dist1·ic·c or~icc of C!poc i.a l hvesti3atir:,;1s (7:l ) , ~.:irtls.nc'. 1'.ir ~•oi·ce Dase , We,;1 :.:exico U GF.HD : R - Tielia't. l e Unl: Unl'.110':"m J.eliability *1eliability of Ocs ervers : V"J - Very Relia'c l e 11 ( 3) Prob~bl e :~eteor Fireball I'henomena **Evaluation : ( 1) "Gr een NW 91526 - ~ · · · • .. ~ . ·· · ·· · · · · · . · · .. . ·· · .. . . r-·-T·-· -. i,o~. f ~ ! - g·-r-:-~-:,-·"-r·:··:'"T" :i r-1· ·· - --T~--T;~r ·---- - ··· "i ·· -:: · ----,- - µ-··-- r·- : i··- • :~ • i i i l o P o : rj c.-; o l ~I ·rl ·:::i : ~ -c; i , ' ~.:, i ; o '. o d : ; 0 ~-' ! o ~; ! { H i : s~ ? d O'.l : CJ O H i O -'' ,,-1 i O ~~ i CD Q H 1· j l •r I ? : ! G ('. ~ r-i l r- ! i h H ; O rl l h ~ ; <ll N i.., ' I=! rl i .,.:, h I C i... f-, i OJ :'."c ro ' O h ' 0 h ·d l GJ ; , /l ; 'v , O '. ;; O p ~ ! ,L~ j (!) ~ j.. (? i ~ ~ :..: \ C \J O ::. 1 i cj • :-•: j ~ ·r! ~ ! 0 : • ,-· · ·""": i cl (l) ! ' S. 0 ~ ; {' 0 t\l d ? i 0 , r- 1 -:) : E=, . .D : ::.: i ~ ti) : o . r1 0 o . :-='i H i :').. -~"> , ::, ~ : ,: 1 ~ t'.l : H m ! ;.J ... ~ ! r· i:--'.! ; ~ o i c r.'l u : • -, : i ,..; ! ro l : --:t l ::l ,'., : ':~ G-! i O H O i r', •rt c,-1 I P , rl ! 0 0 0 i O i 1-< f-, i ;:.! ,L' i O . ,!. . ! r::'•• ·r-1 ! : • C, i ~3 •rl i:-1 i ~.' i ! :-, Q j ~ f~-i .... ) i * o r (.1J"'""~ '' ~ <;;:-_, o ; ..:::~<--: ! r=i.- -!.::, l D : C• 1 ~-1 i µ.:, J r,1 ; ~: ~ ! -.~u'1 ~ --i t!) i :· -1 .~ a5 : * i 1 1 5 f.:: t:v c-.~.:i 's.rc:l j link ~·;1oen i :: , .jLto·;-r ! i il,r eon i 75 i ' i 3 ca.i· i ve1°y s l O'i/ ! Boco.mcvor y (1 ) . 1 2 1 : :._· . ... + : ; -- 1.i - --;.1-i•r ~,::·_ ____:.. . - -1 I l ---- 1-- + '' ·J _-+ ---l- - -- - - -- 1.·. -- --·- - ---1-~:tt!p:~-7~ ~<0 l ; : : ! • I ! G !" or !App 1 \.:.· R V8.Ui)1n , i I '-WO1 1 i 7jos ccndinr:; p:; ~i [;ht iFor.e '1m'nd i La r ::;er l Desc ending ! ~~~:-ilodod t( 3) jt, rov 12200 1hr; [500 1 ! cJ oc:1l y b i 1';1i te ! ! t~1.c.~1 l, as - • s J.o-:; ly ! i i·. Eex1· c o ; ,,,.,.. ......:cal i. i • i 1~0 ·:,10~.11 i : 1 1 : l . i v v.L l, .1. t., 1 1 f : ! i - - v - 1 ! : J,-·-····J ........_ ... -····+ ····..······ ·····+·-········+ ·••··•········ . ......... ·················:· ...........+ •·•· -· •••• ••••• •··•···:··---· ·+ ·-··-·-······· - ....) ..!:l~P.L'!E.•..-...... ......1....•...•.....• •-·-······••I••··········· ·+ ········--··· ··--+ ················~·-··- --···· •••••• ••i...···········..······· ··········-t--··--···· ·-··········--············l-·············--········ ••••• • -i 1 • 7 f~3 r:ov! Apr., i J H Vaughn , i 1,1.00 1 Descon.6.i n:; :.1ri ~:1t l ! ji'i on e ~:ound Laq ;or i Dcsc0nd i11~ Jxpl odod j( 3 ) ! - • 1 2200 i • ~Tew ! !500 1 sl 011ly i n ·:11:.Hc ! ' t han 'o o.s - l s lo·a l y ! 1 L . _ __ _ _ ,,! . . _ ,.L ........,J. •;eo:ic o ! , i: ::; ; a l • ! 1 ' , ! J:etbdl l ! 1 8 ms 2 IR i r::;::::,•;·~~-;-T~:i::~J;;:r~:,,:,al i,n,itish ! j Few [ ! I ; • !Di :;~~:1:~~l~)­ 5 Dec 1 i Ne':! Ile::i co je.b ove l slish-tly !or an :;c ! s ecs ! ! ! ! l -5- ~: : : ~p; I2 IR r Jq~:,'oc.~: ·;,e·-,r.,··~ !t:.: ln:.;"v~n-; o::: !~t::~.-·:::::::~:"'.:.:;:::•:,~~:--r 2s-·e·:·c·····s·······;.1;~::l;:~~: L r • + F :~~ ~- ;~~ • t ( 1) •1 1 9 , 2200 . ! ~- , ,, • v curve ! ! ; . . , i 1 ! : i i noted 1 : ' i l 1 I i i i E to 1J SlJ. ,·ht 1C:r ocn [ cs i 2--3 !I one i aound! lr3 cnn.- ! Rapid ! Van i shed i, (1 ) 10 G Doc 22 55 : 1 ! Un1r ! Sandi a ! ! I • • l / : : i l . I .,J i i i Bas e ,Hew j fall i ng I j : sec s ! 1 i me t er of ( ; ! 1 i ! 1 i:o:~ico 1 ar ch ! i : ! 1n.0 011 : ; , i .·············· -···········....... ··1·••··....... ······r······.. T.......... -!- ··· ·········.... ······ ··· ... ...!... ····················--········ ·-r· ·.. .. .... ·-······. .. ·······-··. ... ...... .. ·········t .........-·.-· ..... ........._.. ·t······· ··········+ ..... ·••····•• . .. ........... • •• ••➔ ... ..... .... .............. . ····; ·--··--· ······-········· •••••••··+................... .......... ..-·· •-r· ······......·1 • 11 8 Dec 118 ., 33 l 2 VR Le.s Ve ~;as, IEEE to ~'fSW 113, 500 1 horizontal IBricht fies ! 2 j:Tonc j Lar ger I J.api d r ate Itadod out • ( 1) l 1 !. 1-~ew !.· i r:r een i ' sec s i i \ thn.n a ! of speed ! ; • I • l!. ; I ~ I • i i . i " f i !. I ! : .C'll 1 ! . l ! . ..,..e,;.ico : , . i ! ; i i 1. arc I i · : --·-· · · · --..• • • • ......... . . ... ... - ... .... . : .. ... . . .. . . ....- . . ...:..•••••••••••• • • ~. ....... ___ _ • • · · ······-··-· · · · · · ..••••• •• ..···· · - ··- • I . . ........ ,-.t................................................... ,--··-·-·····..·····...·.!..............._.,L..._._ _..............L.... ......-..,..i-.... : -······ .............i . .. .. ... . ....... ......... . ............. .......!......._••••••••••-••••••-...,............. ...............-.... ••••••t. NW 91526 . • • ?age 3 • i 18 · i 30 ; !I ! ' !-·· ·······-··'............... 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Disappeared :( 1) : • '. : J: J,.. : 0 ­ • /200 ilifew :ic:·:i co :;r con jslowly ita sor:io . 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