Yeah, under most circumstances you're really going to struggle to hear much, because if they're going fast, well, there's a lot of wind, and _wind_ is noisy, too. They make _detectable_ noise, but under normal conditions it's not really going to be human noticeable noise.
Yeah, under most circumstances you're really going to struggle to hear much, because if they're going fast, well, there's a lot of wind, and _wind_ is noisy, too. They make _detectable_ noise, but under normal conditions it's not really going to be human noticeable noise.