Sunday, January 15, 2023

 

a machine gun with just a barrel.

In the formula for the g force when throwing a fives ball, it occurred to me that i had cheated a little in suggesting the trajectory was basically on a line to the target.  This is not necessarily true.  So for instance think of the throwing the hammer competitor.  With a very long rope part the forces could be quite gentle, and the distance quite long.  Instinctively i think the fives throw is pretty straight, though people using a straight arm will definite have an arc.

This made me think of making big coil of tubing starting at the centre, made into a rigid wheel-like thing.  You have it spinning very fast.  You place a ball in the tube at the centre and the ball will be thrown out in a direction dependent on the speed of input and rotation of the ball, and the rotation of the wheel.  But in principal, this is a machine gun firing out balls as fast as they are fed into the machine.

The balls will emerge rotating very fast as they are forced into close contact with the outer surface of the pipe by the rotation.  This could be used, I think to maintain height, by pushing more air down at the front and less up at the rear.  The disc would be at right angles to the earth surface.  You would have difficulty keeping any oil in this barrel.

There may be a need to have a release mechanism at the exit.  You will note that there are two ways of setting this up.  Ie you can spin it either way.  On exit the speed of the ball relative to the ground will be faster with the opening spinning into the 'wind'.

The thing needs a bit more thought.

Reminds me slightly of the giroscopic rocket launcher that is being developed.

M



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