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The Martin XB-51 was an American trijet ground-attack aircraft. It was designed in 1945 and made its maiden flight in 1949. It was designed in 1945 and made its maiden flight in 1949. It was originally designed as a bomber for the United States Army Air Forces under specification V-8237-1 and was designated XA-45 .
The L-171 was initially designated the PTV-A-1 by the USAF but was later designated the X-7 in 1951. [1] Despite its first launch being a failure, after re-development of the original ramjet, following test flights were successful. [2] A total of 130 X-7 flights were conducted from April 1951 to July 1960. [2]
[17] [18] [19] September 14 – Chesapeake Air Show (Middle River, Maryland) – A Lockheed F-117, 81–793, of the 7th Fighter Squadron, 49th Fighter Wing, at Holloman AFB, New Mexico, lost its port wing at 1500 hrs. during a pass over Martin State Airport, and crashed into a residential area of Bowley's Quarters, Maryland damaging several homes.
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1950 First of only two prototypes of the Fairchild XNQ-1 Navy trainer contender, BuNo 75725, written off in a crash. [1]5 January A Boeing B-50A Superfortress, 46-021, [2] c/n 15741 [3] of the 3200th Proof Test Group out of Eglin AFB, crash lands in the Choctawhatchee Bay, northwest Florida, killing two of the 11 crew.
The prototype had nose and tail turrets with twin 20 mm (0.79 in) cannon in each, as well as a dorsal turret with two 0.5 in (12.7 mm) M2 Browning machine guns. The cockpit area was the same as the Mariner's. It first flew on 30 May 1948. [3] The first of 167 production P5M-1 aircraft was produced in 1951, flying on 22 June 1951. [3]
Fifth Air Force, 1 March 1950; 314th Air Division, 25 May 1951; Japan Air Defense Force, 1 March 1952; Fifth Air Force, 1 September 1954; 41st Air Division, 1 March 1955 – 1 October 1957 (attached to 6102 Air Base Wing after 1 July 1957) Pacific Air Forces, 14 March 1966 not organized) Seventh Air Force, 8 April 1966 – 31 July 1971
Operation Buster–Jangle was a series of seven (six atmospheric, one cratering) nuclear weapons tests conducted by the United States in late 1951 at the Nevada Test Site. Buster–Jangle was the first joint test program between the DOD (Operation Buster ) and Los Alamos National Laboratories (Operation Jangle ).