[TChad]

The war against renegade toy aircraft with spy cameras will be going well shortly.

That just might do the job, but it would help to be able to lock the beam onto the moving target.

[familyop]

"That just might do the job, but it would help to be able to lock the beam onto the moving target."

That's a good consideration, and the small equipment to do so could be cheap. Correspondence courses in robotics should still be available for anyone interested.