“A radio transmitter, placed in the vicinity of the normal VR location, using low power, transmitting conflicting control signals could possibly defeat any attempts by someone hoping to use a drone to effect the crash of a heavy commercial aircraft.”
If you read down the blog at the link the inexpensive GPS/inertial autopilots that are available for model aircraft are discussed and links provided.
Model aircraft equipped with GPS/inertial autopilots DO NOT rely exclusively on radio control. If the location of an engine at VR at the end of the Runway Kill Zone can be calculated in three dimensions with near certainty for a specific airframe, such as a 747-400, the runway can be “mined” by programing the drone copter to proceed to that location as a “waypoint.” No further RC commands would be needed.
It won’t be quite so easy as there has to be a dozen different models of the 400. I think the latest is 747-400XQLR. Each aircraft has a different base weight and capacity weight that comes into play.
Not saying that it can’t be done but just that it won’t be real easy.