3 ms·
Most critically: the wind is not turning the propeller. If you watch the videos when the thing is first getting going, it is slow enough to see that the propel
by sopooneo 5y ago
Most critically: the wind is not turning the propeller.
If you watch the videos when the thing is first getting going, it is slow enough to see that the propeller is actually spinning in the opposite direction it would be if it was acting as a windmill.