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Drone calculator. Design Notes ​

https://www.ecalc.ch/xcoptercalc.php

pdfs:

Drone Design - Calculations and Assumptions ​

https://www.tytorobotics.com/blogs/articles/the-drone-design-loop-for-brushless-motors-and-propellershttps://www.calctool.org/machines-and-mechanisms/drone-motor

Drone thrust calculation: drone thrust formula ​

The total thrust required to make the drone fly is given by: thrust = thrust-to-weight-ratio × total drone weight From this, we determine the thrust required from each motor using: thrust per motor = thrust/number of motors For example, let's say your quadcopter drone weighs 800 g in total, and you chose a thrust-to-weight ratio of 4:1. Using the drone thrust formula:

  • thrust = (4/1) × 800 = 3200 g.
  • thrust per motor = 3200 g/4 = 800 g.

So you need four motors of 800 g thrust capacity.

Drag Coefficient ​

https://www.presticebdt.com/drag-coefficient-of-shapes/

where “m” is the mass of the object, “g” is the gravitational acceleration, “ρ” is the density of the air, “S” (m^2) is the section of the object perpendicular to the falling motion and “Cd” is the coefficient of aerodynamic drag, it can be seen that to obtain a high limit speed it is therefore necessary to decrease Cd, which is found in the denominator ρ ~ approximately 1.225 kg/m³ at sea level

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