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This is Project Blue Book Special Report No. 14, "Analysis of Reports of Unidentified Aerial Objects," Project No. 10073, dated 5 May 1955. The study reduced about 4,000 sighting reports received by the U.S. Air Force between June 1947 and December 1952 to IBM punched cards and analyzed them statistically, including chi square tests comparing knowns with unknowns. It concludes that the reports very probably do not represent technological developments beyond present scientific knowledge, and it notes that no case produced physical evidence.
“Punch”14 pages
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. LJ *^ ;^J -.*': v r iy ^ ^ - co 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 vr '.". co vr ^ co vr L'J CO VJ*. lr, co vr L-] co vr 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 & to :;,' 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-- co r—- c o r— c o r—- co 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* co r— oo r— oc? r— i y f-~ CO I— CO r—- co r— c o « C O r— o.-> 1 &,' r— co 1 CO t— mg 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 c i y :!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
Report, cited by the archive. 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.