If the Mach Effect is real [mass fluctations) and behaves as theorized (with some experimental confirmation) by James Woodward and the effect scales up as expected then we can create propellentless space drive. It appears that the latest research work by James Woodward is validating the existence of the effect.
STAIf 2007- Mach-Lorentz Thruster (MLT)Applications presentation by Paul March.
An overview of the Mach Effect and interview with Paul March
All nextbigfuture articles related to Mach Effect Propulsion
Jim Woodward is building a new more robust shuttler test article. and Paul March is building a new Mach-Lorentz Thruster (MLT) prototype based on some N4700 COTS caps that should produce at least an order of magnitude higher thrust than my last successful test article, the Mach-2MHz, which generated up to 0.5 gram-force, (~5.0 milli-Newton). As to when these new test articles will see first light, my guess is sometime this summer.
UPDATE: More details on the experiment from Paul March
Paul March's Mach-2MHz test article in a MINWAX Faraday shield used the same 500pF at 15kV, Y5U barium titanate caps that Jim was using at the time, but alas no vaccum system, it generated a first light thrust of ~5,000 micro-Newton running at 3.8 MHz. (See Paul March's STAIF-2006 paper and the related slides.)
Murata N4700 ceramic doorknob capacitors sell on Ebay for $18.95
2500pF, 20KV, N4700, ceramic, doorknob capacitors
Here is a 20 page pdf from Murata that describes their high voltage ceramic capacitor products
Theoretical Scaling Rules for the Mach Effect
The Mach Effect for propulsion is proportional to the applied vxB Magnetic-field
NOTE: These scaling rules have been updated based and a new computational model was used to predict the anticipated ten fold gain.
The CUBE of the applied Cap Voltage
The CUBE of the MLT Operating Frequency
The SQUARE of the Cap dielectric constant
The thickness of the Cap Dielectric
Proportional to the total active Dielectric Mass
But Inversely Proportional to the Cap Density
2500 pF versus 500 pF (capacitance 5 times, so the N4700 should be 25 times better) Cube of the voltage 20- kV instead of 15 kV (1.33 cubed or 64/27 which is over double the Mach 2 Mhz experiment )
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