So I just saw a post that really got a good bit of smoke coming out of my ears,
It was along the lines of how could a little 1.5/ 2 pound drone be dangerous
Here is a great little calculater that can help you find out just how hard your drone can impact an object
ENERGY CALCULATOR
Select the energy button then on the right side of the entry fields you can select the unit type.
To give you a reference point a baseball traveling at 95 MPH will impact an object at about 80 foot pounds of energy,
A 2 pound drone traveling at 30mph will impact an object with 60 foot pounds of energy keep in mind a baseball doesn't have sharp edges, extended legs, whirling props and so on. And that is controlled flight.
What about free fall terminal velocity is 122 MPH now I'm not saying the drone will reach those speeds at a free fall (dead stick) but let's say it can reach 75 mph on a dead stick free fall that means it will impact with over 350 foot pounds of energy (378 fpe)
A 357 caliber pistol shooting a 200 grain slug at 900fps produces 350 foot pounds of energy
Please I beg you NEVER underestimate the power and danger of these devices