Tesla's Magnificent Mechanical Oscillator Fluid Heat Engine

[ckurtz]

What this means is that there is very little or none of the prop

Pretty much.

Modern propellers are generally airfoils which means their leading surfaces act like the upper surface of a wing, creating a very low pressure zone. The spinning bottom surface pushes against the air impinging against it, compressing it to a certain extent and creating a relatively higher pressure zone. This pressure imbalance creates the axial, or forward movement. However, the spinning bottom surface actually introduces an inherent limitation in the maximum pressure that can be created.

The Tesla-Conada design basically splits the functions of modern prop design, increasing the effectiveness of the upper surface; and eliminating the spinning prop bottom surface by substituting a stationary base.

Remember, on the average at standard conditions air molecules are moving at 500 meters per second. The speed of sound is around 350 meters per second because of the mean distance between air molecules and the oblique angles they collide at. This creates a zig-zag path instead of a straight line path for the sound wave which slows its straight line speed down to about 70%.

If a prop was ever designed that could push air away at 350 meters per second, the energy requirements would be phenomenal. Coanda, like Schauberger, had the right idea, don't try brute force; instead set the conditions so Mother Nauture's Solar powered air molecules can do it for you.

[tainhac]

What this means is that there is very little or none of the prop blast which is associated with conventional prop designs. This is really close to true flight