10:30 p.m. Air Force Lt. Col. James O. Cobb sees from his bedroom window in Arlington, Virginia, a “blob” the size of a small airplane. It reflects white light and is flying at less than 500 feet above ground to the southeast at about 1,350 mph. [Eberhart]
Sources:
NICAP, “Blob Flying at 500′”;
Brad Sparks, Blue Books Unknowns Catalogue, Case 32, p. 22;
PURSUE release, pp. 171–172;
https://www.war.gov/medialink/ufo/release_1/38_143685_box7_incident_summaries_1-100.pdf
PURSUE release, pp. 65–68;
https://www.war.gov/medialink/ufo/release_1/65_hs1-834228961_62-hq-83894_serial_130.pdf