Their Feature description for the drive says "Operates in a vacuum and at 1 ATM" /S
[snip] ... I seem to recall a test was finally conducted on one of these ion propulsion devices within a vacuum chamber and the propulsion effect... disappeared. IOW, such a propulsion mechanism will not work out in the vacuum of space. Thus, it's not a space propulsion device. Does anybody remember the conclusions of that analysis? And are we absolutely sure the same physics is involved here? Regards,Steven Vincent Johnson