Documents / Report

UAP Reported at Sandia Base, 1948-1950

U.S. Department of War · 1948 · 116 pages · text by GLM-OCR

This U.S. Department of War release compiles 1949 records tied to Sandia Base, New Mexico. It includes a Sandia Base security inspection reply and a W. D. Crozier letter to Lincoln LaPaz. It also contains Crozier and Seely's report on collecting airborne copper particles after the July 24, 1949 fireball near Socorro, which they judged negative or inconclusive. LaPaz's sixth report on green fireballs disputes parts of that finding, and a Fourth Army report describes unusual lights around the Q Area at Camp Hood, Texas, in March 1949.

From the source:Release of 2026-05-22 Incident: 1948-1950, New Mexico. This file contains 116 pages of documentation from the Armed Forces Special Weapons Program (AFSWP) – the direct, post-World War II successor to the Manhattan Project – and from the U.S. Air Force – relating to a series of sightings and investigations in Sandia, New Mexico, from 1948-1950. This file contains 209 sightings of “green orbs,” “discs,” and “fireballs” reported near the military base. Witnesses reported unidentified anomalous phenomena (UAP) maneuvering, flying out of sight, disappearing, or exploding. The documents also include the results of contemporary investigations into residual copper powder found in some areas where sightings were reported. A few of these investigations became the basis for Project Grudge, which collected reports of unidentified flying objects from various other military installations – also included in this collection.

Read from the scan by GLM-OCR; expect the odd misread word.

Summary of Sightings of Unknown Aerial Phenomena, 17th District OSI (contd)

Number	Date	Time	Number of Observers	*Reliability of Observers	General Area of Occurrence	Apparent Direction of Flight	Apparent Altitude	Course Horizontal to Vertical	Color	Train or Trail	Duration of Observation	Sound	Shape	Apparent Size	Apparent Speed	Manner of Disappearance	**Evaluation
51	194912 Apr	1930	1	Unk	Albuquerque, New Mexico	SE to NW	20° above horizon White	None	8 secs	None	Round	1/8 size of moon	15° in 8 secs	Extinguished	(1)
52	15 Apr	1630	1	Unk	El Paso, Texas	Straight up	About 30° Grayish	Yes	15 mts	None	Thin smoke trail	Very thin Dissipated	(2)
53	18 Apr	0148	2	R	Flagstaff & Williams, Arizona	NW	App 12,000' to one. 75 - 100 miles to other observer Greenish blue 1 - 2 secs	None	Ball-like	100 watt light bulb Disappeared behind obstacle	(1)(3)
54	22 Apr	0905	1	Unk	Cliff, New Mexico	W to E	20° dropping slowly Aluminum	None	2 mts	None	Round, flat thin, disc-shape	Over 15' in diameter Disappeared behind mountains	(2)
55	24 Apr	1033	5	VR	White Sands, New Mexico	N	25-29° White light yellow 60 secs	None	Ellipsoid Tremendous rate of speed	Disappeared due to distance	(2)
56	25 Apr	0630	2	Unk	Springer, New Mexico	2 groups going W 2 groups going E	Well above 30,000' Silvery white	None	4 grps totaling about 20 sec	Yes	Round	Very small	Very fast well above speed of sound	Disappeared from view	(2)

Cases discussed

About this file

Report, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 116 pages are in the text index: search them above, or from the library's search.