Lockheed Mach 5 Design

[Kryptid]

Hello. I saw this thread about an old hypersonic project on here and I was wondering if anyone had any extra information on it? More specifically, I'd like to know the designation of the third aircraft shown in the pictures:

http://www.secretprojects.co.uk/forum/index.php/topic,1967.0/highlight,mach+4.html

I made a 3-view schematic of the aircraft and wanted to add its name in order to complete it:

http://kryptid.deviantart.com/art/Lockheed-Hypersonic-Study-2-116394802

 

[Vahe Demirjian]

The Mach 5 plane featured in the artwork is a methane-powered Lockheed design illustrated under Figure 1 at https://www.globalsecurity.org/military/systems/aircraft/aurora.htm. It would have reached an altitude of 98,425 feet.