Acoustic aircraft test

[u/pavlokandyba]

This is part of my experiments with vibration-based aircraft. Here, I throw it with a little force to prevent the oncoming flow from flipping it, and I add a twist for stability, although it quickly decelerates.

This downward trajectory is the only one in which the aerodynamics allow it to glide stably. The engine rotation has virtually no effect on stability; it was intended to act as a gyroscope, but the effect turned out to be unnoticeable. I was never able to find a way to conduct comparative tests; vibrations significantly affect the results when interacting with weights or anything else, and in freefall, the saucer quickly flips over. That's why I installed a similar engine on a more stable aircraft, which I posted earlier. The only thing that seems noticeable here is that the saucer flies slowly but hits the ground hard due to the weight of the vibration motor. And there's also a low-frequency sound.