I can say that getting hit by drone blades doesnt injure at all
Source - I got hit by drone blades lot more than once
Thing is, drone motors are very high speed motors - But when you do that, you sacrifice on torque. After the initial momentum of propeller is gone, it has very little force to push with. Not cutting anything unless you tape razor blades to propellors or something.
Appreciate the answer.
Since you have personal experience, believable.
I guess the main expense associated with the strategy is the cost of chicken pieces fed to the Hawk. A low cost option.
But I believe the birds can be temperamental and may not always obey the commands of the controller.
Also as you yourself mentioned simply taping sharp razor blades will be an effective counter.
Why can't the Hawks with the camera be used for ground surveillance, like visuals of reverse slopes of mountains and hills to spot enemy positions. If at all they can be trained to do such manoeuvres.