Goal
Generate mechanical power without conventional fuel by extracting energy from the Earth's magnetic field.
Problem
Need for a fuel-independent power source for engines and aircraft.
Concept Summary
The Hendershot fuelless motor is described as a magnetic-induction device that draws energy directly from the Earth's magnetic field ("earth currents"). It uses a ring magnet surrounded by specially wound coils (a proprietary armature winding) and a pre-charged magnetic core to produce continuous rotation that can drive a propeller shaft or generate electricity.
Principles
- Magnetic induction
- Earth's magnetic field utilization
- Compass principle (orientation dependent operation)
- Special armature winding
Scientific Domains
Materials
- Ring magnet
- Copper wire / coils
- Radio parts (from a worn-out radio)
- Basic mechanical hardware
Mechanisms of Action
- Extraction of energy from Earth's geomagnetic field via a ring magnet and coils
- Conversion of induced currents into mechanical rotation
- Impulse from a pre-charged magnetic core
Energy Sources
Applications
- Aircraft propulsion
- Portable power generator
Claimed Performance
Developed 1500-2000 rpm, 60 hp reported; lit two 110 W lamps, kept a 6 W lamp running for 26 h, burned out a sewing-machine motor.
Experimental Evidence
Anecdotal demonstrations reported in New York Times articles (1928) describing a small airplane model that flew, a motor that burned out a sewing-machine motor, and lamps powered for many hours. No independent peer-reviewed data provided.
Replication Status
No independent replication; only anecdotal reports from witnesses and the inventor.
Limitations
- No verified independent testing
- Energy source not scientifically demonstrated
- Reliance on proprietary winding method
- Scaling unknown
Red Flags
- Free-energy claims without quantitative data
- Anecdotal evidence only
- Potential for fraud or misinterpretation
