Benefit of modifying the thrust of a drone in SimpleFlightQuadX.hpp

[EdwinMeriaux]

Hello,

So I recently made a series of custom drones. On this thread:

• How to make a custom drone? #838
  It says to modify the config file: https://github.com/Microsoft/AirSim/blob/v1.1.10/AirLib/include/vehicles/multirotor/configs/SimpleFlightQuadX.hpp
  With the new drone.

But what is the utility of modifying the thrust? If the velocity of the drone is controlled in the program?
What am I over looking?

And if there is a utility how is it modified?
in the program it says:

// using rotor_param default, but if you want to change any of the rotor_params, call calculateMaxThrust() to recompute the max_thrust
// given new thrust coefficients, motor max_rpm and propeller diameter.
params.rotor_params.calculateMaxThrust();

So when that last line is called in the '()' is that where the the new max_rpm go?