{
  "physical_measurements": 0,
  "status": "DIMENSIONED_MASS_AND_STARTUP_REQUIREMENTS_NOT_QUALIFIED_HARDWARE",
  "floor_bank_mass_budget_kg": 80.0,
  "parts_kg": {
    "liquid-cooled motor, catalogue dry mass": 10.3,
    "HV inverter allowance": 4.0,
    "twenty-one dimensioned rotor blanks": 8.385770853958007,
    "three steel shafts": 3.0304054063939434,
    "aluminium barrel shells": 5.8629658738354165,
    "stator rings and vanes": 1.9606658566009982,
    "bearings, seals and end caps": 4.0,
    "belt drive, pulleys and tensioners": 5.0,
    "four-cell manifold and isolation valves": 8.0,
    "external cooling, fluid and hoses": 8.0,
    "containment allowance": 6.0,
    "mounts and cables": 5.0
  },
  "subtotal_kg": 69.53980799078836,
  "remaining_mass_margin_kg": 10.460192009211639,
  "motor_source": "https://emrax.com/wp-content/uploads/2026/08/EMRAX_208_datasheet_v1.7.pdf",
  "motor_limits": {
    "mass_kg": 10.3,
    "peak_W_30s": 86000.0,
    "peak_Nm": 150.0,
    "continuous_W_LC": 47000.0,
    "continuous_Nm_LC": 75.0,
    "rotor_inertia_kgm2": 0.0239,
    "maximum_rpm": 7000.0
  },
  "rotor_blank_material": {
    "density_kg_m3_requirement": 2810.0,
    "material_direction": "High-strength aluminium; manufacturing, fatigue and corrosion qualification remain open."
  },
  "rotor_tip_diameter_m": 0.23,
  "stage_count": 21,
  "parallel_shafts": 3,
  "shaft_length_m": 0.64,
  "design_rpm": 6500.0,
  "tip_speed_ms": 78.27801695194569,
  "rotating_inertia_upper_screen_kgm2": 0.14299576548960388,
  "dimensioned_spin_DC_J_screen": 36807.3559496688,
  "retained_spin_DC_budget_J": 70000.0,
  "minimum_selected_prelaunch_spin_schedule_s": 8.0,
  "upper_motor_power_during_schedule_W": 54740.0,
  "fan_power_during_ramp_DC_J": 84000.0,
  "prelaunch_readiness_is_outside_timed_launch": true,
  "floor": {
    "outer_m": [
      1.96,
      1.9
    ],
    "effective_area_m2": 3.6091,
    "external_leak_perimeter_m": 7.72,
    "extra_tray_and_carrier_mass_kg": 12.0,
    "longitudinal_span_vehicle_m": [
      1.42,
      3.38
    ],
    "vertical_packaging_span_m": [
      0.12,
      0.18
    ]
  },
  "drive": {
    "motor_inverter_module_kg": 73.0,
    "SR309_gearbox_kg": 26.0,
    "shafts_mounts_cooling_cables_allowance_kg": 26.0,
    "total_installed_budget_kg": 125.0,
    "peak_torque_Nm_ceiling": 580.0,
    "peak_power_W_ceiling": 400000.0,
    "input_speed_rpm_ceiling": 12000.0,
    "ratio": 3.09,
    "input_inertia_kgm2_requirement": 0.15,
    "gear_efficiency_requirement": 0.97,
    "source": "https://www.cascadiamotion.com/im-375"
  },
  "limits": [
    "The inherited pressure-flow map still needs measurement on this multistage cartridge. CAD mass and motor ratings do not prove that fan curve.",
    "The 80 kg mass includes explicit external cooling and containment allowances, which still need detailed design.",
    "The broad pressure deck is checked separately against suspension and wheel envelopes; other vehicle systems and crash structure still require integration.",
    "The 16 mOhm cell-resistance ceiling over the working SOC/temperature window remains a qualification target; typical 12.8 mOhm at 50% SOC is not a guaranteed bound.",
    "The drive model applies catalogue torque, power and mechanical-speed ceilings, not a verified efficiency/voltage/thermal map."
  ]
}