Reference News Network 7 reported on March 24, "the Russian newspaper" website on July 23, the title as "a hired superb flying speed of sound," the article, the author for Sergei, general season non Hodgkin's, the compiler as follows: according to media reports, Russia is actively developing speed achieved even more than 5 times the speed of sound of the aircraft. The Interfax news agency, military news agency quoted than revealed the names of the sources said the Russian hypersonic research supersonic cruise missile prototype.