Wow. Just, wow. That is just so wrong. There is no energy storage as you maintain. There can't be.
Is air a compressible fluid ? If so using a propeller/fan will create a pressure differential.
I will no longer post the graph but you can check that here
https://en.wikipedia.org/wiki/Axial_fan_designHaving a pressure delta is similar to having a compressed spring so energy can be stored that way.
The fact that you (all here) do not understand what energy storage is (among many other things) dose not make what I say invalid.
The equations I presented and the explanation fully matches what happens in all tests that where done.
On the other had you multiple wrong equation do not predict what is observed from all experimental test's.
Take just Derek's formula using (vehicle speed - wind speed) in the video I critiqued and that formula will predict deceleration when below wind speed (never observed in any experiment not to mention ridiculous) and predicts ever increased rate of acceleration when vehicle is above wind speed again never seen in any test and ridiculous to even claim.
Not being able to provide the most important equation of wind power available to vehicle for a wind power only vehicle means you (all) have no understanding of the subject. Seems to be more of a cultural thing that you never answer with I do not know and trow in guesses no matter how unlikely they are to be correct.
Correct formula for a direct down wind vehicle in therms of available wind power is this:
0.5 * air density * area * (wind speed - vehicle speed)^3Not only the formula is correct it also shows that without energy storage no direct down wind vehicle can exceed wind speed.
It is as simple as that if you (all) where to understand physics.
It was a waste of time to discus the issue with you (all) but I did try.
Hopefully someone with more patience and better teaching skills will give it a try.
For now I have better things to do and if I can think of a simpler way to explain this to you (all) I will maybe attempt that in the future.