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SF-2026-000069UnverifiedAliens & UAPs

Air Force intelligence reports relating to UFOs

According to the releasing agency (U.S. Department of War / Air Force Directorate of Intelligence), this declassified Top Secret file compiles USAFE intelligence teletype items dated 4 November 1948 forwarded to Gen. Cabell. The items include: a cover note transmitting a complete set of reports from a special intelligence organization of the European Command; a CONFIDENTIAL report of an unidentified jet-propelled aircraft sighted at 1402Z on 5 September 1948 by three crews of the 307th Bomb Group off the west coast of Holland (5155N/0355E) at 30,000 feet, cruising at jet speed on heading 120 degrees before accelerating and climbing; and a TOP SECRET item expressing concern over recurring flying-saucer reports, citing an object observed hovering over Neubiberg Air Base for about thirty minutes and an account from the Swedish Air Intelligence Service. Per the Swedish account, technically qualified observers concluded the phenomena reflected 'a high technical skill which cannot be credited to any presently known culture on earth,' possibly of extraterrestrial origin; a Swedish naval salvage team investigating a reported lake crash found a previously uncharted crater on the lake floor. The authoring directorate stated it was inclined 'not to discredit entirely this somewhat spectacular theory' while keeping an open mind, and asked Gen. Cabell for his reactions. The file was released by the Department of War on 8 May 2026 as part of a UAP records release.

Source: U.S. Department of Warwar.govIncident Nov 4, 1948Released May 8, 2026Discovered Jul 2, 20263.0 MBdocument
sha256:fc5b1c8ab566157080d8

Description

A declassified Top Secret U.S. Air Force Directorate of Intelligence file transmitting USAFE (U.S. Air Forces in Europe) reports dated 4 November 1948 concerning unidentified aircraft sightings and recurring 'flying saucer' reports, including a Swedish account of an object crashing into a lake.

Claims

  • A flying saucer was observed hovering over Neubiberg Air Base for about thirty minutes.

    60%
  • A Swedish naval salvage team discovered a previously uncharted crater on a lake floor believed caused by a flying saucer.

    50%
  • The Air Force Directorate stated it was inclined not to entirely discredit the extraterrestrial-origin theory while keeping an open mind.

    70%
  • An unidentified jet-propelled aircraft with tremendous reserve power exceeding 1947-variety jets was sighted off the west coast of Holland on 5 September 1948.

    60%
  • On 5 September 1948, an unidentified jet-propelled aircraft with tremendous reserve power was sighted by three 307th Bomb Group crews off the west coast of Holland at 30,000 feet.

    60%
  • USAFE officers were inclined not to entirely discredit the theory that these objects originate from an unknown or extraterrestrial technology, while keeping an open mind.

    60%
  • Swedish technically qualified experts concluded the phenomena were the result of a high technical skill not attributable to any known earthly culture, possibly originating outside the earth.

    45%
  • Swedish intelligence sources reportedly concluded that flying-saucer phenomena result from a high technical skill not credited to any known earthly culture, possibly originating outside the earth.

    40%

Events

  1. Flying saucer observed over Neubiberg Air Base

    An object was reported hovering over Neubiberg Air Base for about thirty minutes during the week prior to the report.

  2. Sep 4, 1948

    Unidentified aircraft sighting off Holland

    Three crews of the 307th Bomb Group sighted an unidentified jet-propelled aircraft at 1402Z off the west coast of Holland (5155N/0355E) at 30,000 feet, which accelerated and climbed with smoke and condensation trails.

  3. Swedish lake crash investigation

    A Swedish technical expert reported an object crashing into a lake; a naval salvage team found a previously uncharted crater on the lake floor.

  4. Nov 3, 1948

    USAFE reports transmitted to Gen. Cabell

    A complete set of reports from the European Command's special intelligence organization was forwarded for inspection and final disposition.

  5. Sep 4, 1948

    Unidentified aircraft sighting off west coast of Holland

    Three crews of the 307th Bomb Group sighted an unidentified jet-propelled aircraft at 1402Z at 30,000 ft, position 5155N/0355E, which accelerated suddenly and climbed.

  6. Nov 3, 1948

    USAFE reports forwarded to Gen. Cabell

    USAFE forwarded a complete set of special intelligence reports for inspection and final disposition.

  7. Reported Swedish lake object crash and salvage operation

    A Swedish technical expert reportedly observed an object crash/land in a lake; a naval salvage team found a previously uncharted crater on the lake floor.

Dates mentioned

1948-09-051948-11-042026-05-08

Keywords

Entities

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USAFE 2

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4 Nov 48

To Gen Cabell
We now have one complete set of all reports prepared by special

intelligence organization of the European Command from its conception to
present date.

We are forwarding these reports for your inspection and

final disposition.

We are of the opinion that inspection of these reports

will lend weight to arguments for allocating Air Force funds to this

organization.

Advise caution in utilizing these reports as mst of them.

were forwarded as received.

{END OF ITEM)

NW90307
Docld:34714985 Page 3

USAFE 10

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OONPIDEN!:I:AL

4 Nov 1948

From OI OB
Following report on unidentified aircraft sighting comes from 307th Bomb
Group which participated in operation daggar.

Unidentified aircraft was

sighted by three crews of the group at 14022 5 Sep 48 off west coast of Holland,

5155N/0355E. Altitude of all aircraft was 30,000 feet. When first sighted
the unidentified A/C was cruiamng at a normal jet speed, heading 120 degrees.
Soon after f'ir~t. seen, A/C began leaving smoke trails and condensation trails
accompanied by sudden acceleration and then climb.

Generali agreed by

observers that it was a single jet propelled A/C employing probably rocket
assists with tremendous reserve power, more than normal curising speed tor
jets of the 1947 variety.

Never within identification range; its course

did not indicate its purposeo
Our evaluation of the above:
(iND OF ITDI)

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NW90307

Docld:34714985 Page 4

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TOP SECRET
USAFE l4

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4 Nov 1948

From OI OB
For some time we have been concerned by the recurring reports on .f'lying
saucers. They periodically continue to cbp up; during the last week., one was
observ·ed hovering over Neubiberg Air Base tor ab:>ut thirt-7 minutes. Th9J'
have been reported by so many sources and from such a variet7 of places that
we are convinced that they cannot be disregarded and mu.st be explained on eom.e
basis wh.£ch is perhaps slightly beyond the eeope o t our present intelligeace
thinking O
•
When officers of this Directorate recently visited the Swedieh Air
Intelligence Service. This question was put to the Swedes. Their answer
was that soma reliable and fully technically qualified people have reached
the conclusion that "these phenomena are obviouel;r the result of a high
••ohnical skill which cannot be credited to any- presently known culture on
e~.n Thq1are therefore assuming that these objects originate from eome
previous4" unknown or unidentified technology, possibly outside the earth.

One of these objects was observed by a Swedish technical expert near
his .home on the edge of a lake. The object crashed or landed in the lake
and he car16ully noted its azimuth trom his point or observa:tion. Swedish
intelligence was sufficiently confident in his observation that a naval
salvage team was sent to the lake. Operations were 'Wlderw81' during the
visit ot USAF1~ officers. Divers had discovered & previosul.y uncharted
crater on the floor ot the lake. No further information is anilable, bat
we have been promised knowledge of the resultao In their opinion., the
observation was reliable, and they- believe that the depress.ion on the floor
ot the lake, 'Which did not appear on current IJdrographic charts, was in
fact caused by a flying saucer.
•
Although accepting this theory of the origin of these objects posea a
who,le new group of questions and puts much of our think:i.ng in a changed
light, we are inclined not to discredit entirely this somewhat spectacular
theory, meantime keeping an open mind on the subject. What are your
reactions?
TOP
(Effl) OF USAPB ITEM: 14)

NW90307
Docld:34714985 Page 5

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