July 22, 1952.  MacDill AFB, Florida (BBU)
10:30 p.m. (EST).  MacDill AFB air traffic control tower operator sighted for ½ hour a red-greenish-blue object to the WSW at about 45° elevation with 2 other [similar?] objects to the N of it, smaller and/or farther away and lower in elevation angle (?).  Tower operator sighted another object to the SSE about 30° elevation at 11:30 p.m. MacDill AFB Detachment 21, 3944th Radar Bomb-scoring Sq (RBS), radar tracked object at 12:03 a.m. (July 23) at azimuth 160° range 65,000 yards (37 mi) at 41,200 ft altitude on a heading of 310° True [almost directly towards MacDill AFB] speed 462 knots [532 mph].  Tampa Radar Bomb-scoring Sq also tracked object at 160° azimuth [about SSE] altitude 41,000 ft [reportedly, in 1998 account, Navy and CAA radars also tracked object].  At 12:08 a.m. USAF pilot and copilot of B-29 bomber with 364th Bomb Sq on landing approach were vectored by MacDill tower operator to investigate, saw high speed object at 40,000 ft heading towards MacDill AFB on a heading of 308° traveling faster than the B-29.  4 airmen at MacDill AFB radar site sighted object as it passed close [nearly overhead?]. (According to 1998 report of B-29 pilot, an AF Lt Col, they were flying at 20,000 ft; the B-29 fire control radar locked on to object at 40,000 ft and prepared to fire when UFO changed course and disappeared at 4,000 knots speed.)  MacDill RBS lost object on radar at range 145,000 yards [82 mi] azimuth 310° (about NW) [at about 12:15 a.m.].  Civilians near base sighted object(s) visually.  (Sparks;  Robert Klinn;  Project 1947; McDonald list; BB files; NICAP; NUFORC)  1-3/4 hrs duration,  10+ witnesses, RV case.

Jan Aldrich:
MacDill is one of those cases that has additional info outside of BB. 1.  Unit history, 2.  NICAP UFO Investigator, 3.  Peter Davenport's site. Wish McDonald had worked on this one. Not because of the case particularly, but because of the SAC connection.

Detailed reports and documents
reports/520724macdill_rep.htm (Dan Wilson)
docs/MAXW-PBB12-1134.pdf (Jean Waskiewicz)
reports/520724macdill_rep2.htm (Brad Sparks)