  A possibility of electrodynamic acceleration of particles from the initial
zero velocity to the final velocity ten kilometeres per second the acceleration
length five meters is considered. After the electrostatic preacceleration
particles are accelerated at the trailing edge of the voltage pulse six
megavolts, which runs along the spiral turns. Accelerated particles have the
diameter six microns, and length one centimeter. Because of a pointed cone at
the head the particles can move in the air almost without loss of velocity,
penetrating into aluminum and water as deep as ten centimeter and water one
meter respectively.
