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ACUFO:

ACUFO is my comprehensive catalog of cases of encounters between aircraft and UFOs, whether they are "explained" or "unexplained".

The ACUFO catalog is made of case files with a case number, summary, quantitative information (date, location, number of witnesses...), classifications, all sources mentioning the case with their references, a discussion of the case in order to evaluate its causes, and a history of the changes made to the file.

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Stuttgart, Germany, on September 6, 1943:

Case number:

ACUFO-1943-09-06-STUTTGART-1

Summary:

Several ufology sources indicate that during the raid over Stuttgart of September 6, 1943, the following incident occurred:

At 9:50 a.m., over Stuttgart, Germany, the crews of two aircraft of the 384th Bomb Group, commanded by Captain Raymond P. Ketelson, observed two round objects "resembling silvery discs" floating downward through the aircraft formation. One hit the wing of a B-17 bomber, setting it on fire, and this bomber did not return from the mission.

Some sources indicated that this appeared in a US Confidential memo of the A-2 duty desk, titled "Observation of silvery discs on mission to Stuttgart on 6 sept. 1943"; which indicated that two crew members of a Flying Fortress of 384th US Bomb group flying between 22,000 and 24,000 feet observed silvery colored discs coming from above the aircraft, at a time when there were enemy aircraft 2,000 to 3,000 above and ahead of the bombers, not seen to drop any material. The "silvery colored discs" objects were a mass of material, which did not dissipate as it streamed down, falling slowly. One witness told that it was about 75 feet long and 20 feet wide from top to bottom as it fell. This cluster was made of small round objects, and some were observed to fall on the wing of a B-17. The wing immediately started to burn and this B-17 did not return.

Data:

Temporal data:

Date: September 6, 1943
Time: 09:50 a.m.
Duration: ?
First known report date: 1943, 2007
Reporting delay: Hours, weeks, 6 decades.

Geographical data:

Country: Germany
State/Department: Baden-Württemberg
City: Stuttgart

Witnesses data:

Number of alleged witnesses: 2
Number of known witnesses: ?
Number of named witnesses: 0

Ufology data:

Reporting channel: Military report, UFO book.
Visibility conditions: Day.
UFO observed: Yes.
UFO arrival observed: ?
UFO departure observed: ?
UFO action: Fell slowly, hit and burned a plane wing.
Witnesses action:
Photographs: No.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: Puzzled.
Witnesses interpretation: ?

Classifications:

Sensors: [X] Visual: 2
[N/A] Airborne radar:
[ ] Directional ground radar:
[ ] Height finder ground radar:
[ ] Photo:
[ ] Film/video:
[ ] EM Effects:
[ ] Failures:
[ ] Damages:
Hynek: CE2
Armed / unarmed: ?
Reliability 1-3: 2
Strangeness 1-3: 2
ACUFO: Possible rejects of exploded incendiary bomb.

Sources:

[Ref. dwn2:] DOMINIQUE WEINSTEIN:

Scan.

Case 21
September 6, 1943

Stuttgart, Germany

During a raid on Stuttgart, two crew members of a Flying Fortress (384th US Bomb group) flying between 22,000 and 24,000 feet observed silvery colored discs coming from above the aircraft. At that time there were enemy aircraft 2,000 to 3,000 above and ahead of the bombers but they were not seen to drop any material. These objects were a mass of material, which did not dissipate as it streamed down, fell slow. According to one witness it was about 75 feet long and 20 feet wide (size from top to bottom as it fell). The cluster was made of small round objects silvery in color. Some objects were observed to fall on the wing of a B-17. The wing immediately started to burn. This B-1 7 did not return.

Sources: US Confidential memo, A-2 duty desk, Subject: Observation of silvery discs on mission to Stuttgart on 6 sept. 1943 / Strange Company, Keith Chester, 2007

[Ref. tai1:] "THINK ABOUT IT" WEBSITE:

Date: Sept. 6, 1943

Location: Stuttgart, Germany

Time:

Summary: Objects resembling silver discs.

Source: Page 43 Ref.1

[Ref. nip1:] "THE NICAP WEBSITE":

Scan.

Sept. 6, 1943; Stuttgart, Germany

Objects resembling silver discs. (Page 43 Ref.1)

The reference 1 is described at the end of the document as "Strange Company (2007), Keith Chester".

[Ref. get1:] GEORGE M. EBERHART:

1943

September 6

9:50 a.m. During an aerial fight over Stuttgart, Germany, the crews of two aircraft of the 384th Bomb Group, commanded by Capt. Raymond P. Ketelson, observe two round objects "resembling silvery discs" floating downward through the aircraft formation. One hits the wing of a B-17 bomber, setting it on fire. The bomber does not return from the mission.

(Strange Company 43)

[Ref. ano1:] ANONYMOUS POST ON THE WEB:

Event 903 (26CAAA71)

Date: 9/6/1943

Description: 9:50 a.m. During an aerial fight over Stuttgart, Germany, the crews of two aircraft of the 384th Bomb Group, commanded by Capt. Raymond P. Ketelson, observe two round objects “resembling silvery discs” floating downward through the aircraft formation. One hits the wing of a B-17 bomber, setting it on fire. The bomber does not return from the mission. (Strange Company 43) Autumn — A Polish bomber unit based in England claims that silver-blue balls of fire appeared near their wing on six missions when they raided the Nazi V-1 weapons plant in Peenemünde, Germany. RAF intelligence officer Michael Bentine debriefs them later and asks, “But what did it do to you?” They reply, “Nothing.” Bentine points out, “Well it was not a very effective weapon, was it?” (UFOFiles2, p. 20; David Clarke and Andy Roberts, “The Foo Fighters: The RAF Experience,” The Real UFO Project, January 2003)

Reference: Eberhart

Source ID: 594

Source: EberhartUFOI

Looking through the mission logs now. Interestingly, the pilot who hit the discs over Schweinfurt on Black Thursday (Philip Algar) was also flying this mission in the same aircraft, airframe 026 "Battlewagon":

https://384thbombgroup.com/piwigo_384th_gallery/picture.php?/185845/category/4538

[Ref. shg1:] "SIGN HISTORY GROUP":

A web page by the The Sign Historical Group ufology group in th US lists Government folder headings of holdings of Project 1947 Jan Aldrich ("ja" below). It lists:

"1943 - Sep, Stuttgart. Germany, Small discs (General Arnold's files) (ja)"

Aircraft information:

The US B-17 "Flying Fortress" was a heavy bomber fitted with five 7.62 machine guns for its defense against enemy fighter planes.

B-17 formation.

Discussion:

Stuttgart.

Historical WWII sources confirm there was a raid over Stuttgart on September 6, 1943. 388 B-17 "Flying Fortresses" gathered over southern England and the English Channel, bound for Stuttgart to destroy its industrial sector, where American intelligence in 1943 estimated 90% of Germany's magnetos and fuel injection nozzles were being produced.

It was the first daylight attack on Stuttgart, and the United States Army Air Force's first attack on Stuttgart, Of the 262 B-17s that made it to Stuttgart, 45 were lost.

Over Cambrai in France, a number of Luftwaffe fighters attacked the formation and exchanged blows with its escorting P-47 Thunderbolts before ceasing their action at 8:44 AM. At this time, the escorting P-47s were running low on fuel and had to return to base, and the B-17 continued over Germany without escort.

The B-17 were attacked again by German fighter planes, but the attacks abruptly ceased when the B-17s arrived over Stuttgart, where the city's anti-air Flak cannons began to open fire on the bombers.

Moments after the B-17s left the Stuttgart area, German fighter planes attacked them again, and this continued until the B-17 joined with US escort planes again over France.

As many B-17s were lost or force landed, several officers described the raid as "one of the most costly fiascos in 8th Air Force history".

The information on the raid would suggest this:

The witnesses would not have misinterpreted US fighter planes as there were none with them when the sighting took place.

The witnesses would not have misinterpreted German fighter planes as they did not attack when the sighting took place over Stuttgart; as flak intervened, they were waiting ahead. As stated in the report, "enemy aircraft" were "2,000 to 3,000 above and ahead of the bombers".

When the sighting occurred, German flak was certainly in action.

The report said that the "cluster" of "small discs" was "made of small round objects silvery in color. Some objects were observed to fall on the wing of a B-17. The wing immediately started to burn."

This does not look at all like "UFOs" in the sense of "extraterrestrial craft"; it looks more like incendiary bomb rejects.

Was there a B-17 well above the witnessing B-17? Did it drop an incendiary magnesium or thermite bomb that accidentally exploded and spread flaming debris which hit a B-17? Did an incendiary bomb explode when it was hit by the flak? I am not sure of this; but I cannot exclude some explanation of this kind.

Evaluation:

Possible rejects of exploded incendiary bomb.

Sources references:

* = Source is available to me.
? = Source I am told about but could not get so far. Help needed.

File history:

Authoring:

Main author: Patrick Gross
Contributors: None
Reviewers: None
Editor: Patrick Gross

Changes history:

Version: Create/changed by: Date: Description:
0.1 Patrick Gross October 8, 2023 Creation, [dwn2], [tai1], [nip1], [get1], [ano1], [sgh1].
1.0 Patrick Gross October 8, 2023 First published.

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This page was last updated on October 8, 2023.