This item has been an award-winning science project for decades. It is very popular in middle school, high school, College, museums, and even has been featured on TV, one show being MythBusters (Season 4, Episode 26) who built our kit in 2006 and filmed it hovering and levitating.

Units use duty cycle pulsed sources of safe high voltage at a low current. The resulting phenomenon of this specific electrical reaction produces a thrust with an audible “throbbing sound”. This thrust is what makes your craft levitate and fly generating the effect of "anti-gravity". It has already proven itself in outer space as a highly-efficient thruster, where it is used as a propulsion method for satellites and deep-space probes. As stated so many times, “Today’s experimental research will be tomorrow’s reality."

anti-gravity craft that can be built and flown:

6” craft shown in detailed assembly instructions, and parts for assembly included in all purchasesPlans GRA1GRA847 Pages In Color 12” craft built using same technique as 6” craft. Easily powered by our GRA1GRA8and included 3 ft craft built using similar technique as smaller versions. Easily powered by our GRA10/HV350CC/HVPSD50KV(+) Click for video of 3 foot craft A larger 6-8 ft craft can be built using similar techniques and a little ingenuity. Easily powered by our HVPSD50KV(+)

And these are the power supplies that provide energy to fly these craft:

GRA10: the lowest cost power supply, and preferred by hobbyists, experimenters and for science projects and classroom functions. Has the same power output as the more-expensive HV350CC.   HV350CC+: with a protective enclosure, this power supply is preferred for use in museums or public and special displays. Fully enclosed with panel meter for monitoring craft voltage, and with all plugs and jacks for plug & play operation.   HVPSD50KV: For serious experimenters who want to attempt a 6-8 ft/side craft, for a total area of 18-32 square feet! This power supply has enough energy to fly a properly made craft over 6 ft per side, demonstrating amazing lifting forces greater than a kilogram. Output is adjustable from 5 to 50 kv (delivers 6ma regulated at 50kv).

To make and fly an anti-gravity craft, just purchase one of our power supplies, and then build a 6" craft (you must provide the simple materials for this craft, such as foil, glue, and balsa wood from a hobby shop. Our power supplies include emitter wire, and our instructions show how to make the craft from all these materials). Your first triangular shaped craft is typically built 6" to a side, and you can make a larger craft up to 14" once you get your first correctly flying. It is very important that the craft is built exactly as shown in the plans for best performance.

If more information is needed, a free download (600MB) is available containing many videos and other valuable information on assembly and flying hints of different sized and shaped craft that require simple construction and use readily-available low-cost materials.

Additional Components (Optional)