Comparison — Propulsion

EDGE PROPULSION
vs Combustion

Four propulsion patents. Field-managed propulsion, EdgeMotor 1 and 3, EdgeLift. No combustion. No heat signature. No rare earth magnets. No contact surfaces.

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Patent #133USPTO #64/073,096
Propulsion — Broadest Non-Combustion Field-Managed Method
Broadest patent covering any non-combustion propulsion system combined with electromagnetic aerodynamic field management and stealth field management in a vehicle of any geometry.
MetricField-Managed PropulsionTurbofan Jet EngineRocket Engine
Heat SignatureNear-zero — no combustionMassive — 500-1000C exhaustMassive — 3000C+ exhaust plume
Acoustic SignatureLow — ion only~140dB — hearing damage at proximity~180dB — structural damage
Geometry ConstraintNone — field manages aerodynamics regardless of shapeAerodynamic shape requiredStreamlined shape required
FuelEdgeBattery — no combustion fuelJet fuel — supply chainLOX + kerosene — complex handling
Speed LimitNot thermally limitedMach 3-4 thermal limitStage-limited
EM SignatureManaged by EdgeEMShield — controllableHigh — turbine electromagnetic emissionHigh — plume conductivity
Field-managed propulsion wins.No heat. No noise. No shape constraint. No fuel. No thermal speed limit.
Patent #53USPTO #64/067,651
EdgeMotor Type 3 — WATS Superconducting MHD Rotary Drive
WATS-fabricated room-temperature superconducting MHD rotating field rotary drive. No permanent magnets. No rare earth materials. No copper windings. No brushes. No contact.
MetricEdgeMotor Type 3Permanent Magnet Motor (Tesla)Induction Motor
Rare Earth MaterialsNone — MHD — no permanent magnetsNeodymium — China supply chain — geopolitical riskNone — but lower efficiency
FrictionZero — no brushes, no contact, no bearings requiredBearing frictionBearing friction
Efficiency~99.9% — superconducting — near-zero resistive loss~96% — winding resistance~93% — rotor losses
Heat GenerationNear-zero — superconducting windingsSignificant — winding resistance lossesSignificant — rotor heating
Speed RangeUnlimited — no back-EMF limitLimited by back-EMF and thermalLimited by slip frequency
MaintenanceZero — no contact surfacesBearing replacement, demagnetization over timeBearing replacement
EdgeMotor Type 3 wins.No rare earth. No friction. No heat. 99.9% efficiency. Zero maintenance.
Patent #59USPTO #64/067,659
EdgeMotor Type 1 — Ion and Photon Beam Momentum Transfer Drive
Ion and photon beam momentum transfer rotary drive. No windings. No magnets. No physical contact between rotor and stator. Momentum transfer only. Vacuum compatible.
MetricEdgeMotor Type 1Conventional Brushless DCHall Effect Motor
Contact RequiredZero — beam momentum transfer — no physical contactBearing contact requiredBearing contact required
Vacuum OperationNative — no outgassing, no bearing contaminationLimited — bearing lubricant outgasses in vacuumLimited
Speed LimitNone — no contact surface limitBearing speed limitBearing speed limit
EM EmissionControlled — beam-onlySignificant — winding switchingSignificant — winding switching
MaintenanceZero — no contact surfaces, no lubricantsBearing and winding replacementBearing replacement
EdgeMotor Type 1 wins.Zero contact. Vacuum native. No bearings. No magnets. No maintenance.
Patent #39USPTO #64/067,615
EdgeLift — All-Diaphene Ion Thruster Elevator System
All-diaphene ion thruster elevator. No cable. No counterweight. No shaft. Vertical lift via ion propulsion. Any height. Any building geometry. Retrofittable.
MetricEdgeLiftOtis Gen3 Cable ElevatorThyssenKrupp MULTI (Rope-Free)
Cable RequiredNone — ion propulsion — no cable failure modeSteel cable — failure risk — replacement every 15 yearsMagnetic linear motor — no cable but rail required
Shaft RequiredNo — travels outside building if geometry permitsDedicated shaft requiredDedicated shaft required
Height LimitNone — ion propulsion scales600m practical cable limitNo practical limit but rail required
Multi-DirectionalYes — ion thrust vectored — horizontal + verticalVertical onlyVertical + horizontal — but fixed rail
CounterweightNone requiredEqual to cab weight — structural loadNone — motor compensates
MaintenanceNear-zero — no cable, no pulley, no mechanical contactCable inspection + replacementTrack maintenance
EdgeLift wins.No cable. No shaft. No counterweight. Any height. Any direction. Retrofittable.