YorkNott Robotics: Shuriken (FW spinner)

[Danny B]

UPDATE

So after some thought, I've decided to change the design to a more conventional, NST-esque setup. I'm still keeping the weapon bar the same size and weight, and using the same electronics and drive/weapon motors.

Going by the size, power and relatively low kv of this motor, I reckon it has some impressive torque behind it, but I still want to reduce the speed by 1.5:1 just to be safe. Accounting for a 5-10% reduction in speed due to mechanical and aerodynamic drag, I estimated the bar's tip speed should be around 230-240 mph.
Given the reasonably substantial weight of 3.6kg, will that be enough kinetic energy to cause any damage?