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  "path": "/aircraft/quarterhorse-mk-2-1-prototype-breaks-sound-barrier/",
  "publishedAt": "2026-05-28T08:03:00.000Z",
  "site": "https://newatlas.com",
  "tags": [
    "Continue Reading",
    "Aircraft",
    "Transport",
    "Supersonic",
    "Hermeus",
    "SR-71"
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  "textContent": "The venerable Cold War SR-71 Blackbird may be looking nervously at its laurels after Hermeus's latest Quarterhorse Mk 2.1 uncrewed prototype broke the sound barrier at Spaceport America over the White Sands Missile Range airspace in New Mexico in March 2026.\n\nContinue Reading\n\n**Category:** Aircraft, Transport\n\n**Tags:** Aircraft, Supersonic, Hermeus, SR-71",
  "title": "SR-71 successor? Quarterhorse Mk 2.1 prototype cracks the sound barrier"
}