{
  "title": "Raptor Diagnostic — Where Heat Becomes Flight",
  "author": "Armando Torres",
  "location": "Garland, Texas",
  "date": "2026-07-19",
  "subject": "SpaceX Raptor Engine Full-Flow Staged Combustion Analysis",
  "wikidata_entities": {
    "rocket_engine": "Q335225",
    "combustion_chamber": "Q909434",
    "regenerative_cooling": "Q1093826"
  },
  "specs": {
    "chamber_pressure_bar": 300,
    "sea_level_thrust_mn": 350,
    "vacuum_isp_seconds": 380,
    "fuel_mix": "CH4/O2",
    "cycle_type": "Full-Flow Staged Combustion"
  },
  "design_principles": [
    "Both fuel and oxidizer pass through turbines before combustion",
    "Zero wasted exhaust energy",
    "Regenerative cooling uses fuel as coolant prior to ignition",
    "Supercritical methane state achieved in pre-combustion circuit"
  ],
  "garland_correlates": [
    "Thermal gradient management = cylinder head torque sequence",
    "Seal verification under load = head gasket installation protocol",
    "Heat flow mapping = exhaust port equalization"
  ],
  "sources": [
    {
      "label": "NASA Regenerative Cooling Archive",
      "url": "https://images.nasa.gov/details/GRC-1958-C-49377",
      "license": "Public Domain"
    },
    {
      "label": "Wikidata: Rocket Engine",
      "url": "https://4ort.xyz/entity/rocket-engine",
      "qid": "Q335225"
    },
    {
      "label": "Wikidata: Combustion Chamber",
      "url": "https://4ort.xyz/entity/combustion-chamber",
      "qid": "Q909434"
    },
    {
      "label": "Wikidata: Regenerative Cooling",
      "url": "https://4ort.xyz/entity/regenerative-cooling",
      "qid": "Q1093826"
    }
  ]
}