What makes you think they’re unstealthy? I doubt there’s even a tiny bit of metal in them. If they’re made out of Teflon, PVC, and exotic composites, they’ll ha

What makes you think they’re unstealthy? I doubt there’s even a tiny bit of metal in them. If they’re made out of Teflon, PVC, and exotic composites, they’ll have barely any radar return. They’re just propulsors. The motor is inside the airframe.