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National Security Journal on MSN3d
The North American X-15 ‘Rocket Plane’ Hit Mach 6.7 (All the Way Back in 1967)Decades before the rumored SR-72 “Darkstar,” America had already conquered hypersonic flight with the X-15 rocket plane. -In ...
North American X-15 Provenance Jeffrey Robinson, Gift, 2021, NASM.2022.0007. Creator Robinson, Raun Summary Raun Robinson (died 1975) was an engineer with North American Aviation who worked on ...
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