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Archive case record

Delta, Colorado, April 1949

Date of account
1949-04
Location
Delta, Colorado
Source
uap_archive
Record updated
2026-10-10

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Record summary

Project Blue Book case file indexed from National Archives metadata; page-level review pending.

Published source text

Read the available text below. Archive transcriptions may contain OCR errors; later context is labelled separately. A recorded claim is not a finding that it happened.

Source page 1

Source text · mention only

PROJECT 10073 RECORD CARD 1.DATE 2.LOCATION 12.CONCLUSIONS 口 Was Balloon 4Apr111949 X Delta,Colorado 口 ProbabiyBailoon 口 Possibly Balloon 3.DATE-TIME GROUP Xo Ground-Visuol Was Aireraft Local. Ground·Rodar 口 Orobably Aireraft N/A 口 Possibiy Aireraft GMT AirVisucl Air-intnrceptRcdar 5.PHOTOS 6.SOURCE 口 Wos Astronomicai ProbablyAstronomicai CI Possibiy Astronomical ONo CIV MUMBEROFOSJECTS9. COURSE See belou 7.LENGTH OF OBSERVATION 3. InsutticientUotg torEvaluanion Unknown N/A O.BRIEF SUMMARY OF SIGHTING COMMENTS Bound-by farmer 1n 1946 nenr Delta,Colorado Definitely identiried as ballast ring rptd Apr 49.Cast aluntnsa uheal shapca fron Japanese incendlary balloon. with 72 holes in the peripher7 into which exploslve plugs are lnsertad. ATICFORM329(REV 26SEP 52)

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