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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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Puget Sound, Washington, USA, on July 8, 1947:

Case number:

ACUFO-1947-07-08-PUGETSOUND-1

Summary:

In an article about the many recent sighting reports of "flying discs" in the area, the newspaper Post-Intelligencer, of Seattle, Washington, USA, for July 9, 1947, reported that Chet Proud, 3040 N. 36th St., flying a seaplane over the Puget Sound off Ballard, saw two or three disks over the Olympic Mountains, "high and going very fast," at about 9 a.m.

Data:

Temporal data:

Date: July 7 or 8, 1947
Time: 09:00 a.m.
Duration: ?
First known report date: July 9, 1947
Reporting delay: 1 or 2 days.

Geographical data:

Country: USA
State/Department: Washington
City or place: Off Ballard in the Puget Sound.

Witnesses data:

Number of alleged witnesses: 1
Number of known witnesses: 1
Number of named witnesses: 1

Ufology data:

Reporting channel: The press.
Visibility conditions: Day.
UFO observed: Yes.
UFO arrival observed: ?
UFO departure observed: ?
UFO action: Flew high and fast.
Witnesses action: Observed.
Photographs: No.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: ?
Witnesses interpretation: Flying discs.

Classifications:

Sensors: [X] Visual: 1.
[ ] Airborne radar: N/A.
[ ] Directional ground radar:
[ ] Height finder ground radar:
[ ] Photo:
[ ] Film/video:
[ ] EM Effects:
[ ] Failures:
[ ] Damages:
Hynek: DD
Armed / unarmed: Unarmed.
Reliability 1-3: 1
Strangeness 1-3: 2
ACUFO: Insufficient information, possible planes.

Sources:

[Ref. pir1:] NEWSPAPER "THE POST-INTELLIGENCER":

Scan.

Disk Didos Dying Down or Dodging

Either the flying disks are bypassing Seattle onlookers for disks were resting their chin necks yesterday.

Reports of disks seen over Seattle, which reached a peak Monday night, fell off sharply. Only two reports were phoned to the Post-Intelligencer all day yesterday.

Chet Proud, 3040 N. 36th St., flying a seaplane over the Sound off Ballard, saw two or three disks over the Olympic Mountains, "high and going very fast," at about 9 a.m., he said.

Earl Klenpke, 2004 17th Ave. S.W., said he saw a single disk at 2:30 p.m. It was traveling northwest over the city at about 75 or 80 miles an hour, "moving in a straight line with an up and down motion."

He said the disk was "very shiny," oval-shaped, about 8 feet high and 10 feet long, and had a glass dome atop it. Klenpke said he observed the disk through field glasses for seven minutes and that his mother saw the disk, too.

[Ref. tbr1:] TED BLOECHER:

Ted Bloecher indicated that Chet Proud, private pilot of 3040 N. 36th Street, was flying a seaplane over Puget Sound off Ballard at 9:00 a.m. PST on July 8, 1947, when he saw "two or three" disc-like objects to the west, over the Olympic Mountains. In an unfortunately abbreviated account in the Seattle Post-Intelligencer, he described the objects as flying "high and going very fast."

[Ref. dwn1:] DOMINIQUE WEINSTEIN:

French ufologist Dominique Weinstein compiled a catalog of the cases of UFOs observed from aircraft. This case appears in the February 2001 (6th edition) of his catalog as:

DATE 47.07.08
TIME 09:00
COUNTRY USA
PLACE Puget Sound, near Ballard, Seattle, Washington
P
TYPE OF PLANE AND WITNESSES a Seaplane pilot
UFO DESCRIPTION 2 or 3 disc-shaped object flying high and very fast over the Olympic mountains
Radar
G
X
E
SOURCES 365 03

The sources "365 03" are referenced at the end of the catalog as:

report on the UFO wave of 1947, Ted Bloecher

Project 1947 Reports, newsclippings and documents (cases from Jan Aldrich and Barry Greenwood)

[Ref. gvo1:] GODELIEVE VAN OVERMEIRE:

1947, July 8

USA, Puget Sound, near Ballard, Seattle (Washington)

At 9 a.m., the pilot of a seaplane saw two or three disc-shaped objects flying at high altitude and at very high speed above the Olympic Mountains (Project ACUFOE, catalogue 1999, Dominique Weinstein, who states that he had delisted (vog: whereas this sighting is still included there) this observation since, according to Jan Aldrich, it concerns the same case as that of July 7.)

[Ref. rhg1:] RICK HILBERG:

July 8 - Chet Proud, a private pilot living in Seattle, Washington, was flying a seaplane over Puget Sound off Ballard at 9:00 a.m. when he saw "two or three" disk-like objects to the west, over the Olympic Mountains. He described the things as flying "high and going very fast."

The source is indicated as "Seattle Post Intelligencer 7/9/47."

Aircraft information:

In 1947 in the US, many small seaplane models were operating.

For example, on the photo below, a Grumman G-44 Widgeon in 1947.

Map.

Discussion:

Map.

Map.

The information is very meager; I found no other information in the contemporary Press so far.

The fact that the pilot did not know whether he saw 2 or 3 objects may indicate that he did not see them quite well, so that I cannot exclude that they might have been planes or jet planes.

Evaluation:

Insufficient information, possible planes.

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 July 7, 2026 Creation, [pir1], [tbr1], [dwn1], [gvo1], [rhg1].
1.0 Patrick Gross July 7, 2026 First published.

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This page was last updated on July 7, 2026.