<blockquote class="pullQuote"><em>Many commonly accepted ways of doing things are based on tradition or opinion rather than sound engineering, physics, and chemistry ...
Adaptive cycle engines are specially designed to alternate between efficiency and raw power—extending an aircraft’s range ...
Intermediate eXperimental Vehicle: The IXV project started in 2005 to test re-entry technologies including thermal protection systems, guidance, navigation and hot structures for a late 2012 in-flight ...