☢️ NukeEngine™ — Nuclear Propulsion Engine
Ground · Sea · Air · Deep Space
(primary propulsion energy engine)
⚡ Electric: 1–200 MWₑ
🚀 Thrust: 10–300 kN
📈 Isp: 800–3000 s
⚖️ Dry mass: 20–120 t
🧊 Heat rejection: 5–200 MWₜ
⏱️ Burn: 10–6000 s
🔁 Restarts: 100+
🔋 Startup reserve: 0.5–10 MWh
📈 Lifetime: 20–40 years
🔗 www.NukeEngine.com
1️⃣ Core Power Density
⚡ Thermal power: 5–500 MWₜ
📊 Power density: 10–200 MWₜ/m³
📏 Active core length: 0.5–2.5 m
📏 Active core diameter: 0.3–1.5 m
🧮 Peak-to-average factor: 1.2–2.0
📈 Flux level: 10¹⁴–10¹⁶ n/cm²·s
🌡️ Hot spot margin: 50–250 °C
🔁 Power step response: 0.1–5 s
2️⃣ Fuel Element Lattice
🧱 Element count: 100–5000
📏 Channel hydraulic dia: 1–10 mm
📊 Porosity / open area: 10–40%
🌡️ Fuel temp limit: 1200–3000 °C
🧮 Burnup band: 5–25% FIMA
📈 Swelling allowance: 0.5–5%
🔁 Creep model band: 0.1–2%/cycle
📊 Element lifetime: 10⁴–10⁶ s hot-time
3️⃣ Neutron Economy Geometry
🧲 Reflector thickness: 2–25 cm
📊 Reflector effectiveness: 5–25% keff gain
🧮 Control worth: 2–10% Δk/k
📈 Shutdown margin: 1–5% Δk/k
🔁 Reactivity swing band: 0.5–3% Δk/k
📊 Leakage fraction: 1–10%
📏 Core aspect ratio: 0.5–2.0
🌡️ Temp coefficient: negative band
4️⃣ Reactivity Control Actuation
⚙️ Control elements: 4–24
📏 Stroke: 10–80 cm
⏱️ Full insertion: 0.2–2 s
🔁 Fine control step: 0.01–0.1% power
📊 Actuator force: 5–200 kN
📈 Position resolution: 0.01–0.5 mm
🧮 Backlash limit: 0.01–0.2 mm
🔐 Hard-stop safe geometry
5️⃣ Primary Coolant Physics
🧊 Coolant class: gas / liquid metal
📊 Mass flow: 1–200 kg/s
📈 ΔT across core: 100–1200 °C
🧮 Pressure drop: 0.1–5 MPa
📊 Reynolds band: 10⁴–10⁶
🌡️ Bulk outlet: 800–2800 °C
🔁 Pump power: 0.1–10 MW
📈 Cavitation / boiling margin band
6️⃣ Heat Transfer Limiters
📊 Heat flux: 0.1–20 MW/m²
🧮 CHF margin: 1.2–3.0×
📈 Nusselt correlation band
🌡️ Wall temp margin: 50–400 °C
🔁 Hot channel factor: 1.1–1.8
📊 Fouling factor: 0–20% derate
🧱 Erosion allowance: 0.1–2 mm
📈 Thermal stress cycle band
7️⃣ Thermal-to-Thrust Path Topology
🔥 Mode A: direct nuclear thermal
⚡ Mode B: electric → plasma
📊 Mode switch time: 1–60 s
🔁 Power split: 10–90% range
📈 Conversion loss: 5–30%
🧮 Thrust efficiency: 20–70%
⏱️ Throttle response: 0.1–10 s
📊 Stable operating map: multi-region
8️⃣ Propellant Feed Dynamics
🟦 Propellant: H₂ / H₂O / inert gas
📊 Tank pressure: 0.2–3 MPa
🌡️ Inlet temp: 20–90 K
🔁 Valve actuation: 10–200 ms
📈 Flow range: 0.1–50 kg/s
🧮 Mixture / dilution ratio band
📊 Feed line ΔP: 0.01–0.5 MPa
⏱️ Startup purge: 5–120 s
9️⃣ Chamber Pressure Envelope
📊 Pc band: 0.2–20 MPa
📈 Pressure stability: ±0.5–5%
🔁 Transient overshoot: 5–25%
🧮 Acoustics damping ratio band
🌡️ Chamber wall: 600–1600 °C
📏 L* characteristic length: 0.2–2 m
📊 Injector ΔP: 10–40% Pc
⏱️ Pressure settle: 0.1–5 s
🔟 Nozzle Expansion Physics
📏 Expansion ratio: 20–500
📊 Throat diameter: 5–80 cm
🌡️ Throat heat flux: 1–20 MW/m²
🧮 Isp sensitivity: 0.5–3 s/%
📈 Separation margin (atmo): band
🔁 Vectorable nozzle: ±5–15°
📊 Erosion rate: 0.01–1 mm/hr
⏱️ Nozzle thermal soak: 10–600 s
1️⃣1️⃣ Thrust Equation Closure
🚀 Thrust band: 10–300 kN
📊 mdot band: 0.1–50 kg/s
📈 Ve band: 8–30 km/s
🧮 Thrust-to-power: 0.05–5 N/W
📊 Thrust-to-mass: 0.1–10 N/kg
⏱️ Impulse per burn: 10⁵–10⁹ N·s
📈 Control authority: 1–10% thrust
🔁 Thrust ripple: 0.1–5%
1️⃣2️⃣ Isp Formation Mechanisms
📈 Isp: 800–3000 s
🌡️ Core outlet temp: 800–2800 °C
🧮 Molecular weight effect band
📊 Dissociation fraction: 0–20%
📈 Frozen vs equilibrium: band
🔁 Boundary layer loss: 1–10%
📊 Divergence loss: 0.5–5%
⏱️ Performance drift: 0.1–3%/1000 s
1️⃣3️⃣ Electric-to-Plasma Coupling
⚡ Electric: 1–200 MWₑ
📊 Thruster clusters: 2–200
🔁 Per-thruster power: 50 kW–5 MW
📈 Discharge voltage: 200–5000 V
🧮 Efficiency: 40–80%
📊 Beam divergence: 5–30°
⏱️ Start sequence: 1–60 s
🔁 Throttle steps: 1–10%
1️⃣4️⃣ Power Electronics Loss Budget
⚡ Bus voltage: 1–20 kV
📊 Inverter efficiency: 95–99%
🔁 Converter stages: 2–6
📈 Switching freq: 2–50 kHz
🧮 Ripple: 0.5–5%
🌡️ Junction temp: 80–175 °C
📊 EMI attenuation: 20–80 dB
⏱️ Protection trip: 10–200 µs
1️⃣5️⃣ Thrust Vector Control Authority
🚀 Gimbal: ±5–15°
⏱️ Slew rate: 1–30 °/s
📊 Torque capability: 10³–10⁶ N·m
🔁 Actuators: 2–8
📈 Pointing stability: 0.01–0.5°
🧮 Coupling with vehicle inertia band
📊 Control loop rate: 50–500 Hz
🔐 Hard-limit envelope enforced
1️⃣6️⃣ Startup Energy Physics
🔋 Reserve: 0.5–10 MWh
📊 Peak startup draw: 0.5–30 MW
⏱️ Spin-up / warmup: 30–600 s
🔁 Heater loops: 2–20
📈 Minimum stable power: 0.5–5%
🧮 Cold-start penalty band
🌡️ Preheat target: 50–400 °C
📊 Ignition success: 99–99.9%
1️⃣7️⃣ Restart Cycle Thermal Fatigue
🔁 Restarts: 100–5000
🌡️ ΔT per cycle: 50–800 °C
📊 Low-cycle fatigue life: 10²–10⁵
🧮 Miner rule damage fraction band
⏱️ Cooldown: 60–3600 s
📈 Crack growth rate band
📊 Seal wear per cycle band
🔐 Restart permissions logic
1️⃣8️⃣ Decay Heat Management
🔥 Decay fraction: 1–7% at shutdown
⏱️ Passive removal: 24–240 h band
📊 Heat sink capacity: 5–200 MWₜ
🔁 Heat pipes / panels: 10–1000
📈 Hotspot avoidance margin band
🧮 Radiator turn-down: 10–90%
🌡️ Safe-state temp: <500 °C target
📊 Autonomous safe-hold: 24–240 h
1️⃣9️⃣ Radiator Sizing Physics
🧊 Reject: 5–200 MWₜ
📏 Radiator area: 200–20000 m²
🌡️ Radiator temp: 300–900 K
📊 Areal density: 2–15 kg/m²
⚖️ Radiator mass: 1–80 t
🧮 View factor efficiency band
🔁 Deployment time: 30–900 s
📈 Micrometeoroid margin: band
2️⃣0️⃣ Working-Fluid Selection Map
🟦 H₂: high Isp regime
🟩 H₂O/steam: medium Isp regime
⬜ Inert gas: stable handling regime
📊 Molecular weight: 2–40 g/mol
🌡️ Max temp limit by fluid band
🧮 Storage density trade band
📈 Feed system complexity band
🔁 Contamination tolerance band
📊 Thrust response by fluid band
⏱️ Chilldown time band
2️⃣1️⃣ Throttling Stability
📊 Throttle range: 10–100%
⏱️ Throttle step: 0.1–10 s
📈 Overshoot: 1–20%
🔁 Stability margin: 3–12 dB
🧮 Gain scheduling bands
📊 Surge/instability map locked
🌡️ Thermal lag: 1–60 s
🔐 Limiters always on
2️⃣2️⃣ Plume & Expansion Physics
🚀 Plume half-angle: 5–40°
📊 Backpressure sensitivity band
📈 Infrared signature band
🧮 Induced torque band
📊 Contamination keep-out angle band
⏱️ Plume settling time: 1–30 s
🌡️ Jet boundary temperature band
🔁 Plume steering coupling band
2️⃣3️⃣ Vibration From Turbomachinery
🔁 Rotors: 1–6
📊 Shaft speed: 3k–60k rpm
📈 Imbalance limit: mg·mm band
🧮 Bearing life: 10³–10⁵ h
🌡️ Lube temp: 20–250 °C
📊 Vibration: 0.1–10 g RMS
⏱️ Spin transient: 5–120 s
🔐 Overspeed trip: <50 ms
2️⃣4️⃣ Containment Pressure Transients
📊 Relief setpoints: 0.2–5 MPa
⏱️ Relief response: 10–200 ms
📈 Peak transient margin: 1.2–2.5×
🔁 Relief paths: 1–4
🧮 Blowdown mass fraction band
📊 Burst disk count: 1–6
🌡️ Hot gas routing temp band
🔐 Event sealing & logging
2️⃣5️⃣ Shielding vs Thrust Penalty
⚖️ Shield mass: 5–80 t
📈 Thrust-to-mass penalty: 5–40%
🧮 Directional shield gain: 2–10×
📊 Solid angle protected: 30–180°
📏 Standoff distance: 2–20 m
🔁 Shadow shield alignment tol: 0.1–2°
📊 Dose target band per zone
⏱️ Shield alignment time: 10–120 s
2️⃣6️⃣ Geometry Coupling to Vehicle
📏 Mount diameter: 0.5–4 m
⚖️ Interface load: 0.1–5 MN
📊 Bolt count: 12–120
🔁 Redundant load paths: 2–4
📈 Misalignment tolerance: 0.1–2 mm
🧮 Thermal growth: 1–20 mm
🌡️ Interface temp: 50–400 °C
🔐 Mechanical lock states: 3–6
2️⃣7️⃣ Sensor Suite for Thrust Physics
📊 Pressure sensors: 10–200
🌡️ Temperature sensors: 20–500
🧮 Neutron/gamma monitors: 5–50
📈 Flow meters: 2–50
⏱️ Sampling: 10–5000 Hz
🔁 Redundant channels: 2–4
📊 Calibration drift: <1–5%/year
🔐 Signed sensor frames: 100%
2️⃣8️⃣ Control Loop Determinism
⏱️ Control loop: 1–5 ms
📊 Jitter bound: <50–500 µs
🔁 Redundant controllers: 2–4
📈 Failover time: <1 s
🧮 Worst-case execution bound
📊 Saturation handling map
🔐 Command authenticity: 100%
📡 Time sync drift: <1–10 ms
2️⃣9️⃣ Degradation & Performance Drift
📈 Thrust drift: <0.5–5%/year
📊 Isp drift: <0.2–3%/year
🔁 Nozzle erosion: 0.01–1 mm/hr
🧮 Core reactivity drift band
🌡️ Radiator fouling: 0–20% derate
📊 Sensor drift: <1–5%/year
⏱️ Recal interval: 100–2000 h
🔐 Drift evidence pack signed
3️⃣0️⃣ Lifetime Utilization Accounting
📈 Lifetime: 20–40 years
⏱️ Hot operating hours: 10³–10⁵ h
🔥 Total burn time: 10⁴–10⁷ s
🔁 Thermal cycles: 10²–10⁵
📊 Neutron fluence budget band
🧮 Dose budget to electronics band
📊 Scheduled replacement items: 5–50
🔐 Lifecycle state machine locked
⚖️ Legal Block
⚖️ Owner: Built to Unite Inc.
📍 169 Madison Ave STE 38467
🏙️ New York, NY 10016, USA
🧾 Telemetry retention: audit-grade
🛡️ Doctrine: sealed lifecycle architecture
© Built to Unite Inc. — All rights reserved
For investors & strategic partners:
📩 [email protected]
🗓️ Last updated: February 2026