The only planes CARRIED out to any field in our zone I've visited is hand- held electrics. And all the fences are quite adequate for viewing the plane at any angle, unless someone's flying behind a baseball backstop. As for safety, a Large plane got loose at the NATS after landing and went right into a pilot stand,missing the adjoining pilot and scattering some judges, but it did it's friggin job. Get used to it..that's what everyone is told who barks about it.