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The China Academy of Aerospace Aerodynamics, or CAAA, has released pictures and a brief video showing a wind tunnel test of a model of a two-stage-to-orbit space launch system involving a fast- and high-flying mothership aircraft that carries a reusable spacecraft on top of its fuselage. Though this general concept has been around for decades, there has been a major resurgence of interest in it around the world in recent years amid growing demand for flexible, rapid, and unpredictable space launch options.
CAAA released the imagery, together with relatively general details about the project via its official WeChat social media account on Oct. 21, 2019. Aerodynamic testing and modeling using various wind tunnels and other equipment are among the primary services this research and development center offers. CAAA is also part of the larger state-owned China Aerospace Science and Technology Corporation, or CASC.
The statement from CAAA said that the tests had been successful, but offered no details on how far along this two-stage-to-orbit program might. As the researchers noted, safe separation of the spacecraft from the mothership is absolutely essential to making this concept work.
Patent Analysis and Development Study on Airframe and Engine Integration Technology of the Aerospace Plane Paper number IAC-14,C4,P,1,x22851 Author Dr. Ping Li, China Aerospace Science and Industry Corporation, China Coauthor Mr. Shuhui Ma, China Aerospace Science and Industry Corporation, China Coauthor Ms. Ziyan Zhou, China Year 2014 Abstract The aerospace plane with the characteristics of using oxygen in the atmosphere to reduce the take-off weight, reusable, horizontal takeoff and landing, which can reduce transportation costs between atmosphere and exoatmosphere, and therefore became the focus of the development of aerospace technology in the 21st century. Currently, the United States, Russia, Britain, Germany, Japan and other military powers are all developing the aerospace plane flying techniques. One of the key technologies which restrict the development of the aerospace plane is the aircraft airframe and aspirated engine integration technology, which is the geometry of inlet and exhaust nozzle can update with changes in the flight speed, especially for a reusable aerospace vehicle. Through technology decomposition, patents and non-patent literature search, data processing, data indexing and important patents screening of the aerospace airframe and aspirated engine integration technology, this paper studied the technology roadmap, in-depth analyzed the technology efficacy of key problems such as the vehicle inner and outer flow integration design technology, complex shape aerodynamic heat prediction and pneumatic thermal elastic and load calculation, selected important patent to solve various technical problems, predicted the future trends and research priorities of the Lockheed Martin, Boeing and other important patent applicants in technology. source: iafastro.directory...