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Produced. 1952–1962. Number built. 744 [1] The Boeing B-52 Stratofortress is an American long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air Force (USAF) since the 1950s, and NASA for over 50 years.
The term "Kármán line" was invented by Andrew G. Haley in a 1959 paper, [20] based on the chart in von Kármán's 1956 paper, but Haley acknowledged that the 275,000 feet (52.08 mi; 83.82 km) limit was theoretical and would change as technology improved, as the minimum speed in von Kármán's calculations was based on the speed-to-weight ...
List of motor yachts by length. This list of motor yachts by length, is a table of the world's longest active superyachts, with an overall length of at least 75 metres (246 ft) and up. These boats are also known as "megayachts", "gigayachts" and even "terayachts", usually depending on length. [1][2] It has been generally accepted by naval ...
On 30 November, a RB-52B (tail number 52-8716) from the 93rd Bombardment Wing, Castle AFB, crashed 4 miles (6.4 km) north of the base during takeoff on a training flight. Six crew members plus four instructors died. On a night mission, while climbing to 500 feet (150 m), the aircraft dropped to a 5° nose down attitude. During the investigation ...
0.3048 m. 30.48 cm. 304.8 mm. The foot (standard symbol: ft) [1][2] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [3] In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet.
The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres ( 1 100 m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.
The two planes came within about 170 feet (52 meters) of each other when the FedEx Boeing 767 was forced to fly over the Southwest 737-700 to avoid a crash in poor visibility conditions.
Maintaining an altitude of about 250 feet (75 m) above ground level (AGL), Holland radioed the control tower and asked for permission to execute a 360° left turn, which was immediately granted by the tower controller. The B-52 then began the 360° left turn around the tower starting from about the midfield point of the runway.