This concept had been introduced into the open literature in a 1994 Russian publication describing a novel hypersonic vehicle, Ayaks. The Air Force subsequently provided funding for this research through two international organizations whose mission is the nonproliferation of weapons of mass destruction,...
In International Congress Interpraevent 2002 in the Pacific Rim—Matsumoto/Japan; Congress Publication: Matsumoto City, Nagano Prefecture, Japan, 2002; Volume 2, pp. 559–569. 10. Tada, Y.; Okumura, T.; Kubota, T. Examination of the influence of soil pipes on slope failure. J. Jpn. ...