28941698.pdf

PROJECT 10073 RECORD CARD

|  1. DATE | 2. LOCATION | 12. CONCLUSIONS  |
| --- | --- | --- |
|  1 May 52 | Davis-Monthan AFB, Arizona | ☐ Was Balloon ☐ Probably Balloon ☐ Possibly Balloon  |
|  3. DATE-TIME GROUP Local 0910 MST CMT 01/161072 | 4. TYPE OF OBSERVATION ☑ Ground-Visual ☐ Ground-Radar ☐ Air-Visual ☐ Air-Intercept Radar | ☐ Was Aircraft ☐ Probably Aircraft ☑ Possibly Aircraft  |
|  5. PHOTOS ☐ Yes ☑ No | 6. SOURCE AF M/Sgt | ☐ Was Astronomical ☐ Probably Astronomical ☐ Possibly Astronomical  |
|  7. LENGTH OF OBSERVATION | 8. NUMBER OF OBJECTS 2 | 9. COURSE  |
|  10. BRIEF SUMMARY O…

FORM 112—PART I
APPROVED 1 JUNE 1948

|  COUNTRY | USA | REPORT NO. | 1 | LEAVAGE | UNCLASSIFIED 4  |
| --- | --- | --- | --- | --- | --- |

AIR INTELLIGENCE INFORMATION REPORT

|  CLAIM | Information on Unidentified Flying Objects  |
| --- | --- |
|  AREA REPORTED ON | Davis-McArthur AFB, Tucson, Ariz.  |
|  FROM (Agency) | 43rd Bomb Gp, Intelligence Division  |
|  DATE OF REPORT | 2 May 1952  |
|  RELATIONSHIP | R. H. Pestalozzi, Capt, USAF  |

REPRESENTS (General character, character, particulars, etc., as appropriate)

None

SUMMARY: (Under similar summary of report. One duplicate in final…

AF FORM 112—PART II
APPROVED 1 JUNE 1948
(CLASSIFICATION)
UNCLASSIFIED
3
AIR INTELLIGENCE INFORMATION REPORT
FROM (Agency) 43rd Bomb Wg, Intelligence Div.
REPORT NO. 1
PAGE 2 OF 2 PAGES

5. This object then started to decrease in size, as if gaining
altitude without forward motion, until it disappeared.

9. When Sgt [redacted] returned his gaze to the B-36 aircraft, object
A had disappeared in a manner unknown to him.

10. The diameter of each object was about the size of the length
of the horizontal stabilizer of the B-36 aircraft.

11. There was no noise other than the normal sound of the B-…

UNCLASSIFIED AF448176 6

(3) Point of Disappearance

1 Distance To Horizon

DECLASSIFIED AFTER 12 YEARS. DOD DIR 5200.10

UNCLASSIFIED

DECLASSIFIED AFTER 12 YEARS. DOD DIR 5200.10

UNCLASSIFIED AF448176 6

(U) Point of Disappearance
1 Distance
To Merison

LIBRARY DEPT
FEB 23 1945
U.S. GOVERNMENT

DOWNGRADED AT 3 YEAR INTERVALS;
DECLASSIFIED AFTER 12 YEARS.
DOD DIR 5200.10

UNCLASSIFIED

THE UNIVERSITY OF ARIZONA
TUCSON, ARIZONA 85721
INSTITUTE OF ATMOSPHERIC PHYSICS
July 14, 1966

Major Hector Quintanilla, Jr.
Project Bluebook
Wright-Patterson AFB, Ohio

Dear Major Quintanilla:

Following our second unsuccessful effort to locate in the Bluebook files any record of the B-36 incident at Davis-Monthan AFB, I have asked [redacted] to put down, in a letter to me, an account of such details as he can still remember with confidence. I enclose, for your insertion into the Bluebook files, a copy of Maj. Pestalozzi's letter of July 7, 1966.

Please file with it my present letter of tra…

Major Hector Quintanilla
July 14, 1966
Page Two

UFO's overtake the westbound B-36, and he held them under observation as the aircraft passed overhead until the objects departed. His recollection, as of today, was that his line of sight to the B-36 at the time the UFO's moved into position was at an angle of elevation of about 50 degrees (estimated uncertainty about 5-10 degrees); and the UFO's departed when the line of sight to the aircraft was about the same angle above the western horizon. The aircraft was almost due east of the base when the objects joined it, and it lay due west when they…

Major Hector Quintanilla
July 14, 1966
Page Three

it. Unfortunately, here as in the case of the B-36, dates are uncertain, though he'd put it at 1952 or 1953. Other very interesting UFO incidents in the Tucson area in the same period have been described by [redacted], but in my two visits to your office, I've had no luck in locating them, so I suppose they're not going to show up now.

If you should ever come upon anything bearing on the B-36 case, please let me know. It seems to me to be an extremely important UFO incident.

Sincerely,

James E. McDonald
Senior Physicist

JEM/msr
cc:
Air Mai…