[M-technik-3]

XB-70's baby brother the XF-108 Rapier, Lot's of the technology was used on down the road when project was cancelled in 1960.

Here's a AFMC flashback article. https://www.afmc.af.mil/News/Article...-f-108-yf-12a/

Photo of a B-58 Hustler with a GE YJ-93 center mounted for testing.