ionized particle accelerator for aircrafts

i was thinking that maybe someday we could develop a technology to manipulate the surrounding air by ionizing these air particles into negatively charged ions. then these negative charged air particles will then be accelerated at very high speed by a positively charged plate at high voltage which then will give a thrust to the aircraft. but having these in mind we should take in considerations of the mass as this principles here lies in the newton third law of motion that state that for every action there is a reaction to it, F = ma.
the speed has been taken care of by accelerating the particles which is estimated to be about 70% the speed of light. the mass can be achieve by compressing the air into great density into a specific chamber where it is to be ionized. so if the force is to be calculated and lets say a given mass = 1kg the force, F = 1 x 70% x (3.0x10^8) = 210000000N and this is if there is no loss in energy.

if this technology is possible then in near future there is absolutely no worries on limited fuel as air particles are abundant to be ionized and furthermore it is a clean energy.

Anyway its worth a thought
Any opinions?


[edit on 21-11-2007 by jeremywhd]

[edit on 21-11-2007 by jeremywhd]

[edit on 21-11-2007 by jeremywhd]