Oct 252012
A 1954 NACA-Langley concept for a hypersonic research airplane, which eventually led to the X-15. Apart from the X-tail and the use of three rocket engines, the configuration is remarkably similar to the X-15 in general terms.
A 1954 NACA-Langley concept for a hypersonic research airplane, which eventually led to the X-15. Apart from the X-tail and the use of three rocket engines, the configuration is remarkably similar to the X-15 in general terms.