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The Ryan X-13 Vertijet (company designation Model 69) was an experimental tail-sitting vertical take-off and landing (VTOL) jet aircraft built by Ryan Aeronautical and flown in the United States in the 1950s. The main objective of the project was to demonstrate the ability of a pure jet to vertically take off, hover, transition to horizontal ...
List of X-planes. First aircraft to break the sound barrier in level flight. Proved aerodynamic viability of thin wing sections. [ 10] First aircraft to exceed Mach 3. [ 11] Titanium alloy construction; Underpowered, but provided insights into inertia coupling. [ 12] First aircraft to fly with variable wing sweep.
X-13ARIMA-SEATS, successor to X-12-ARIMA and X-11, is a set of statistical methods for seasonal adjustment and other descriptive analysis of time series data that are implemented in the U.S. Census Bureau's software package. [ 3] These methods are or have been used by Statistics Canada, Australian Bureau of Statistics, and the statistical ...
13 (thirteen) is the natural number following 12 and preceding 14.. Strikingly folkloric aspects of the number 13 have been noted in various cultures around the world: one theory is that this is due to the cultures employing lunar-solar calendars (there are approximately 12.41 lunations per solar year, and hence 12 "true months" plus a smaller, and often portentous, thirteenth month).
United States Air Force NASA. Number built. 3. The North American X-15 is a hypersonic rocket-powered aircraft operated by the United States Air Force 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, crossing the edge of ...
Chris Higgins (musician) Christopher Higgins, best known by his stage name Higgins X-13 (born September 23, 1972), [1] is an American musician. He performed as backup guitar / vocal / keyboard / percussion player in the punk rock band The Offspring [3] from 1994 [1] to 2005. He provided backing vocals for Offspring's studio albums between ...
Clarence 13X. Clarence 13X, [ a] also known as Allah the Father (born Clarence Edward Smith) [ 1] (February 22, 1928 – June 13, 1969), was an American religious leader and the founder of the Five-Percent Nation. [ b] He was born in Virginia and moved to New York City as a young man, before serving in the United States Army during the Korean ...
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