I think I've watched all of Thane's vids and from what I remember, there is a lower limit (RPM) where the acceleration will not happen, but if you start at, or above, that RPM, then shorting the coils causes very significant acceleration (IIRC, 100rpm/sec) from say 1700 RPM to over 3000. I wouldn't be surprised if it would continue to well past 3400 which is double where he started from... not sure what to make of it yet!
At one point he was using two different types of coils, hi-frequency coils and hi-current coils; not sure if his latest stuff is still using both types. Just engaging the high current coils to light a bank of small incandescent bulbs WILL bring the induction motor to a HALT. Engaging the high current coils AND the hi-frequency coils results in not only lighting the bulbs, but a very large increase in speed which he limits to ~3000-3100 RPM. Go figure? -Mark -----Original Message----- From: Harry Veeder [mailto:hveeder...@gmail.com] Sent: Tuesday, December 13, 2011 7:03 PM To: vortex-l@eskimo.com Subject: Re: [Vo]:Acceleration Under Load >> On Tue, Dec 13, 2011 at 12:12 AM, Robert Leguillon >> >> >>> 2) Shorting the coil does create a collapsing magnetic field. The >>> time constant of the collapsing field is proportional to the >>> resistance to electrical current. If the shorted coil collapses at >>> just the right speed w.r.t. the disk rotation, it would cause a >>> "push" in the direction of rotation. There could be a higher rpm of >>> rotation at a lower torque value, and only within the narrow band of rotation frequency. If there is a "right speed" the values start at lower speed limit and range upwards continuously. Thane does not know if there is an upper limit. Harry
