- published: 15 Oct 2016
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X15 or X-15 may refer to:
North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be considered a northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea.
North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the earth's land area and about 4.8% of its total surface. North America is the third largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe.
In 2013, its population was estimated at nearly 565 million people in 23 independent states, or about 7.5% of the world's population, if nearby islands (most notably the Caribbean) are included.
North America was reached by its first human populations during the last glacial period, via crossing the Bering land bridge. The so-called Paleo-Indian period is taken to have lasted until about 10,000 years ago (the beginning of the Archaic or Meso-Indian period). The Classic stage spans roughly the 6th to 13th centuries. The Pre-Columbian era ended with the arrival of European settlers during the Age of Discovery and the Early Modern period. Present-day cultural and ethnic patterns reflect different kind of interactions between European colonists, indigenous peoples, African slaves and their descendants. European influences are strongest in the northern parts of the continent while indigenous and African influences are relatively stronger in the south. Because of the history of colonialism, most North Americans speak English, Spanish or French and societies and states commonly reflect Western traditions.
The United States Military Aircraft Designation System was first designed in 1919 when the US Army's Aeronautical Division became the United States Army Air Service. Before this aircraft were put into service under their manufacturers' designations.
During this period Type Designations used by the United States Army Air Service were allotted, using two or three letters, which were an abbreviation of the aircraft's purpose. Examples include GA for Ground Attack aircraft; NO for Night Observation aircraft and NBS for Night Bombardment, Short Distance aircraft.
From 1924 to 1947 the Air Service, United States Army Air Corps, United States Army Air Forces and United States Air Force used a designation system based on mission category, with each model in a category numbered sequentially. In 1947, the designation system was extensively overhauled, with several categories being dispensed with, and others renamed For instance, the Lockheed P-80 Shooting Star (Pursuit) was redesignated as F-80 (Fighter), while the A-26 medium bomber/attack aircraft was redesignated as the B-26, reusing the designation, the Martin B-26 having retired in the meantime.
The North American X-15 was a hypersonic rocket-powered aircraft operated by the United States Air Force and the National Aeronautics and Space Administration as part of the X-plane series of experimental aircraft. The X-15 set speed and altitude records in the 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design. As of September 2015, the X-15 holds the official world record for the highest speed ever reached by a manned, powered aircraft. Its maximum speed was 4,520 miles per hour (7,274 km/h), or Mach 6.72.
During the X-15 program, 13 flights by eight pilots met the Air Force spaceflight criterion by exceeding the altitude of 50 miles (80 km), thus qualifying the pilots for astronaut status. The Air Force pilots qualified for astronaut wings immediately, while the civilian pilots were awarded NASA astronaut wings in 2005, 35 years after the last X-15 flight. The sole Navy pilot in the X-15 program never took the aircraft above the requisite 50 mile altitude.
An air force, also known in some countries as an air army, is in the broadest sense, the national military organization that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an army, navy, or a marine corps. Typically, air forces are responsible for gaining control of the air, carrying out strategic and tactical bombing missions, and providing support to land and naval forces.
The term "air force" may also refer to a tactical air force or numbered air force, which is an operational formation either within a national air force or comprising several air components from allied nations. Air forces typically consist of a combination of fighters, bombers, helicopters, transport planes and other aircraft.
Many air forces are also responsible for operations of the military space, intercontinental ballistic missiles (ICBM), and communications equipment. Some air forces may command and control other air defence assets such as anti-aircraft artillery, surface-to-air missiles, or anti-ballistic missile warning networks and defensive systems. Some nations, principally Russia, the former Soviet Union and countries who modelled their militaries along Soviet lines, have an air defence force which is organizationally separate from their air force.
This educational video explains how the Experimental X-15 Space Program Project designed and engineered the worlds fastest aircraft, first flight test by piloted Scott Crossfield at mach 6.7. The North American X-15 was a hypersonic rocket-powered aircraft operated by the USAF and the National Aeronautics and Space Administration (NASA) as part of the X-plane series of experimental aircraft. The X-15 set speed and altitude records in the 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design. As of September 2015, the X-15 holds the official world record for the highest speed ever recorded by a manned, powered aircraft. It would ultimately reach a top speed of 4,520 miles per hour (7,274 km/h), or Mach 6.72. FOLLOW on: https://www.f...
"It was the ultimate flying machine, No airplane can live up to what the X-15 did." That’s what retired test pilot and astronaut Joe Engle said of the first real space plane and 50 years after its record-breaking flight of 3rd October 1967 when USAF test pilot William J. Knight achieved a top speed of MACH 6.72, 4519 mph or 7273 km/h, It’s still the fastest manned powered aircraft. And if you thought the SR71 blackbird was the fastest jet, then you absolutely correct because the X-15 wasn’t a jet, it was rocket powered single seater aircraft which looked a bit like an oversized dart and had to launched from the underside of a modified B-52 at 45,000 feet, because the XLR-99 rocket engine would burn through all of it’s fuel in just 2 minutes. Not only did the X-15 set speed records it al...
This aviation video shows the United States built North American X-15, a hypersonic rocket-powered aircraft operated by the USAF and NASA as part of the X-plane series of experimental aircraft. The aeronautical company known as North American designed and build this amazing aircraft which set speed and altitude records in the 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design. As of September 2015, the X-15 holds the official world record for the highest speed ever reached by a manned, powered aircraft. Its maximum speed was 4,520 miles per hour (7,274 km/h), or Mach 6.72. PERFORMANCE: Maximum speed: 4,520 mph (7,274 km/h) Range: 280 mi (450 km) Service ceiling: 67 mi (108 km, 354,330 ft) Rate of climb: 60,000 ft/min (18,288 m/...
The X-15 is the fastest and highest-flying manned aircraft. The North American X-15 rocket plane was perhaps the most important of the USAF/USN X-series of experimental aircraft. Although not as famous as the Bell X-1, the X-15 set numerous speed and altitude records in the early 1960s, reaching the edge of space and bringing back valuable data that was used in the design of later aircraft and spacecraft. In 1952, the NACA established a goal of conducting research on aircraft capable of flying at speeds between Mach 4 and Mach 10 and at altitudes between 12 and 50 miles (19 and 80 kilometers). This speed range was called "hypersonic." On September 30, 1955, North American Aviation was awarded a contract to develop an aircraft to conduct this research. The aircraft was designated the X-15...
No copyright infringement intended. X-15 1961 Before Top Gun, Apollo 13 or The Right Stuff, this breathtaking, jet-fueled journey of high-altitude filmmaking blasted audiences from zero-G to 4,000 miles per hour with its thrilling tale of America's victory in the space race. Starring David McLean, Charles Bronson and Mary Tyler Moore, X-15 sets the sky as the limitfor excitement! The courageous pilots of the Air Force's X-15 program are determined to take an experimental rocket 100 miles above the earth at four times the speed of sound! At stake is American air supremacy and proof that space travelis possible. But also at stake are their lives and the lives of the terrified wives they've left behind!
Credit: NASA This joint program by NASA, the Air Force, the Navy, and North American operated the most remarkable of all the rocket research aircraft. Composed of an internal structure of titanium and a skin surface of a chrome-nickel alloy known as Inconel X, the X-15 had its first, unpowered glide flight on June 8, 1959, while the first powered flight took place on September 17, 1959. Because of the large fuel consumption of its rocket engine, the X-15 was air launched from a B-52 aircraft at about 45,000 ft and speeds upward of 500 mph. The airplane first set speed records in the Mach 4-6 range with Mach 4.43 on March 7, 1961; Mach 5.27 on June 23, 1961; Mach 6.04 on November 9, 1961; and Mach 6.7 on October 3, 1967. It also set an altitude record of 354,200 feet (67 miles) on August 22...
The US Air Force X-15 is the worlds fastest aircraft in History. The North American X-15 was a hypersonic rocket-powered aircraft operated by the United States Air Force and the National Aeronautics and Space Administration as part of the X-plane series of experimental aircraft. The X-15 set speed and altitude records in the 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design. As of September 2015, the X-15 holds the official world record for the highest speed ever reached by a manned, powered aircraft. Its maximum speed was 4,520 miles per hour (7,274 km/h), or Mach 6.72.[1][2] During the X-15 program, 13 flights by eight pilots met the Air Force spaceflight criterion by exceeding the altitude of 50 miles (80 km), thus qualifyin...
On November 15, 1967, Mike Adams became the X-15s first and only fatality. For more details on the flight and all the experiments that were on board the rocket plane that day, check out the latest post on Vintage Space: http://www.popsci.com/sometimes-rocket-plane-wins Title image via NASA. Music "New Perspective" from Music Loops. Thanks to Doug Ellison for the amazing quadcopter footage of the X-15 crash site from the air. For more Vintage Space, add me on Facebook, Google+, and Twitter as @astVintageSpace. And subscribe to Vintage Space on Popular Science for regular blog update: http://www.popsci.com/blog-network/vintage-space For weekly Vintage Space video updates, don't forget to subscribe!
The X-15 rocket-powered research aircraft could fly faster than 4,000 miles an hour and reached the edge of space in the 1960s. Edited footage from onboard time-lapse motion picture cameras looking aft and pointing toward the nose make a quick flight seem even faster as the X-15 launches from its B-52 mother ship, accelerates and climbs, and descends to a fast landing on Rogers Dry Lake at Edwards AFB, Calif.
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