Documents / Analysis
Special Report No. 14 was issued by the U.S. Air Force's Air Technical Intelligence Center on 5 May 1955. It is a statistical study of about 4,000 reports of unidentified aerial objects from June 1947 to December 1952. The reports were reduced to IBM punched cards and analyzed with methods including chi square tests. The report concludes that the reports it examined are very unlikely to represent technology beyond present scientific knowledge, and it notes that no case produced valid physical evidence.
EXHIBIT B8 EXAMPLE OF AN IBM CARD Blank — Unused Sighting Reliability ^— Observer Reliability Maneuvers ^— Final elevation Disappearance Bearing Angular Acceleration Light Brightness >s— Shape ^— Number ^ — Light Color ^ _ . ~ ' N— S *• „ Group •- » o p g S Duration Q*o Time Units /~ ** 6*o' 5 G r o o p i j c ' j Hundredths • i; — a s; '— o '.; >— o $ — c.o '.; .— C D ;y .— en y *— ^ '^ - C D r-, — I=D M .— KJ :-; — C D :.; »— o Ji — ESI .^ "— " ^ "~ o ,'• — O ,' '„ .— CD ! ; t l [,-1 ;-, — t J • — c'J i-j «— d a ; .— K ^ •--• * — cna :: •— e n -•• »— o -• »— Hi- - o •» ^~ I B M CSI CNI t u CNI CNI C-J C N I C N | C N ) C N | C v j C N t CNI CN| CNI CNJ a CNI C N | CNI C N ! CNj •CNI C N | C N J CNJ ' CNI CNJ CNI CNI CNJ C-J CNJ C3 L J C-si CNJ CNJ CNI CNJ CNI CNI CNJ CNJ CNJ CNJ ICJ KI3 C N J C N i C N J CNJ CNJ C N J CNJ CNJ CNI CNJ CNI CNI CNJ CNI -SERVICE £! ro vr ;'.' ro T ;-: T~* T ;*r co vr W co vr ;r. L J *^ ;^J -.*': v r iy ^ ^ - c o v r '•3 CO VT :u co I _ J '3 co »r "^Pro ^7" 1^ co vr C C'J v r Li co *-r ';-, co v r '.". co vr ^ co v r L'J CO VJ*. lr, co v r L-] co v r fit t J vr ^ co vr " c o vr IV L U vr s? co vr -7 co r j ^ C 3 vr :? ^tJi vr :i co vr :? co vr r^ co vr :r co f ^ .; K B **• ',!) co vr ;:; co vr • i ro I T .-I co - L~, ""> S *" '.? in -•? " ^ ':' "? -r IO :"; io :-; "^ • • ! « •w " ^ r'. in .:-. ^ " & m :.'# t r j •": IJ-» ; . ' • ' • • u - j 'i to '- MM ' I U"3 _• i n *• r.f. co ;.' cu , : t o y/, t o ;J co ".; CO ^ cs ;,i co T, co °; co ;- | t o & t o :;,' CO l-l to :^ | CO JfJ CC3 ' / ! CO ^ ; ( ^ :;• to ^ co ^7 to : ; (™l ^? to '.; co T co ;" to ;.; co '.; I^JI . . cu .*' CO rP. CO M co ;~, "f L ' crj ; ; cu ,•': t. - \ ^_ CO '\ era " co .-. co t: 'co"Vr co :r c i i C^ CO '.-* co i: co *••• co -> r-- c o r—- c o r— c o r—- c o r-- Co - ^ «Jj I-*- CO r-. ov r— co t CO 1 — • «*••> r-— c o r-— c o r— c:j r-- co r— co "~M Cf* c o r— oo r— oc? r— i y f-~ CO I— CO r—- c o r— c o « C O r— o.-> 1 &,' r— co 1 CO t— m g MB ° J r - CO . — CO r— O J r—> c o f * O.' I - - =O P—• UtJ r— co r~- iv) I—• OO 1—• CO r— co r-. . co r—- | ^ B I CO • • - . « _ 1 • CO r—. k^- • 1 CO ^' o > -V t J J .: t : > .i !., CT> LJ : '„•; '.; cr> L'; '..". cs> .,'•> »:: CJJ LT ui ciy :!J u> en £ vj c3i r^ ^'••^ ;; oi ^ rr C J I V.' V? CTJ '.? IV o - ! •"'•• r. m r, . rj-> ' '•' t:> ;i ••• n i " ' : '•', C 7 - ^ ;"•' O J -i ,'^ CJ"* . ' j - : C - J — "5* cr/.-' V. « r» .'r '..• o i : -• U. c-: ~ — IJ3 - |N •; en .;•« Blank — Unused •"•v Observer Occupation —«v Orientation —\^ Initial Elevation —v Initial Bearing - ^ Angular Velocity ^ ^ Siie —v ' \ Speed ~>v^ Color Group — \ Object Color — \ How Observed • Hundredths -. t -2 Degrees ^ (S " < Hundredths b « 0 c' Degrees ^ < Hundredths .1 u c "° Degrees _j *• Minutes Hours § | 1 \ Ney Incident Serial Number - \ Sighting Identification - 315 and 316
Analysis, from the classic collection. The PDF is mirrored here; the original link is under it. 309 pages are in the text index: search them above, or from the library's search.