NASA’s X-43A or Hyper-X air vehicle achieved a record-breaking speed of close to Mach 10 (12,000km/hr or 7,000mph) in a test flight in November 2004, which was the culmination of a three-flight test program. Hyper-X is an experimental hypersonic flight research program managed by t...
Reports that an X-43A jet of the U.S. National Aeronautics and Space Administration (NASA) broke the world speed record using an air-breathing engine called a scramjet. Features of the NASA aircraft co-developed with Qinetiq; ...
1. NASA X-43 The X-43, an experimental aircraft, holds the distinction of being not only the fastest fighter jet but the fastest aircraft ever built period, having achieved a top speed of Mach 9.6. As part of a $230 million Hyper-X program, the National Aeronautics and Space Administra...
Reports that an X-43A jet of the U.S. National Aeronautics and Space Administration (NASA) broke the world speed record using an air-breathing engine called a scramjet. Features of the NASA aircraft co-developed with Qinetiq; Military and commercial applications of the aircraft technology.年份...
whereri,vi,ai, andμiare the position, velocity, and acceleration vectors with respect to the SSB, and the gravitational parameter of the bodyi, respectively,cis the speed of light, andβandγare the PPN parameters that measure the nonlinearity in superposition of gravity and space-time curvat...
right side shows the rover body inverted, with the Body Unit circled. It is next to the RSM side of the rover to minimize the length of the fiber that transfers the optical signal from the mast unit. The rover’s instrument and electronics bay is1181×1106mm(length, left-right, x ...
In a delicate operation, a 400-ton crane lifts the new X-band cone into the 70-meter (230-feet) Deep Space Station 43 dish located in Canberra, Australia. Credit: NASA/JPL-Caltech Used for communicating with distant spacecraft, a massive radio antenna is being retrofitte...
该数据集综合了 1983 年至 2016 年期间美国阿拉斯加、西北地区和加拿大萨斯喀彻温省被烧毁的北方森林地点的野外地块特征数据、衍生的地上和地下燃烧碳以及获取的火灾气象指数(FWI)系统组件。此外还包括未烧毁地块的数据。编译的地块级特征数据包括林分年龄、干扰历史、树木密度和树木生物物理测量值,用于计算地上(ag)和...
System ( ) The FORTRAN-based Aerodynamic Preliminary Analysis System ( ) (ref. 17)utilizes the Unified Distributed Panel (UDP) program for analysis in the subsonic/su ic speed range and an enhanced version of the Hy ic Arbitrary Body Program (HABP) in the high su ic and hy ic speed ...
该数据集综合了 1983 年至 2016 年期间美国阿拉斯加、西北地区和加拿大萨斯喀彻温省被烧毁的北方森林地点的野外地块特征数据、衍生的地上和地下燃烧碳以及获取的火灾气象指数(FWI)系统组件。此外还包括未烧毁地块的数据。编译的地块级特征数据包括林分年龄、干扰历史、树木密度和树木生物物理测量值,用于计算地上(ag)和...