‫Welcome back.
‫We talked in the past that when, for example, model one rotates counterclockwise like this, then
‫that makes the drone rotate clockwise.
‫And now I want to make something clear now, I'm not talking about the thrust force.
‫A thrust force would be the force factor that would.
‫In this picture point towards you, so that would be the upward vector.
‫But now I'm not considering the thrust force now and considering the talk that the drone applies to
‫the rotors to rotate them.
‫And then when the model rotates, then, of course, thanks to the blades, shape and thrust force is
‫generated.
‫But in order to make this rotor, rotate the drone, apply some kind of talk to this rotor, and so
‫you will also have some kind of talk for M-2.
‫And three and four, and so if you know how much talk is applied to each model, then you can add them
‫up like this talk and one minus talk and two plus.
‫Two and three and minus.
‫Talk M4, and that would equal.
‫Your network or moment, the same thing applied to the propeller's by the drone.
‫And whatever value you get here, either positive or negative, the drone itself then experiences the
‫same talk, the same network, but in the opposite direction.
‫And so the reason why you have a minus sign here and the minus sign here is because more M-2 and for
‫their Maurer's rotate clockwise.
‫So according to the right hand rule, your thumb would point into the screen.
‫And so in case of more one and more a three, your thumb would point out of the screen because you are
‫rotating counterclockwise and then your talks would be positive.
‫And so if your network is positive or counterclockwise.
‫The network applied to the murders by the drone.
‫Then the drone itself would experience a clockwise talk, and if the network is clockwise, then the
‫drone will experience a counterclockwise talk.
‫Because it's equal in magnitude, but opposite in direction, just like we saw it with the helicopter
‫example at the beginning of the course.
‫And so now what we want to do, we want to relate the talk applied to the murders by the drone, all
‫these four talks here.
‫We want to relate them to our AmeriGas.
‫Respectively.
‫So let's see how we are going to do it.