Lift (L) = q*S*CL where q = 0.5 *rho*V^2 is the Dynamic Pressure, given by the product of the air density (rho) times the air velocity squared (V).

How do you calculate amp draw on a drone?

For calculator you have to take the battery’s capacity in amp hours, to convert from mAh to Ah, battery capacity divide by 1000. For instance, 1800mAh/1000=1.8Ah.

How do you calculate motor thrust on a drone?

Use the steps below to calculate the required amount of thrust and choose the right engine to support your drone.

1. Step 1: Determine the weight of the drone.
2. Step 2: Add 20% to that total to ensure that your drone will be able to hover.
3. Step 3: Divide your thrust total by the number of motors the drone requires.

How much thrust does it take to lift a pound?

Thrust is measured in “pounds of thrust” in the U.S. and in newtons in the metric system. 4.45 newtons of thrust equals 1 pound of thrust. A pound of thrust is how much thrust it would take to keep a one-pound object unmoving against the force of gravity on earth.

How do you calculate thrust-to-weight ratio of a motor?

Calculation. The thrust-to-weight ratio is calculated by dividing the thrust (in SI units – in newtons) by the weight (in newtons) of the engine or vehicle. Note that the thrust can also be measured in pound-force (lbf), provided the weight is measured in pounds (lb).

How do you calculate RPM on a drone motor?

To estimate the RPM of a motor, simply multiply the Kv value by the battery voltage. Kv is in units of RPM/Volt. The more torque a motor needs to produce, the more current it will draw.

How do you calculate amperage draw?

Divide the wattage rating by the voltage from your power source. For example, if you have a 100-watt light bulb in a lamp that is plugged into a 120-volt outlet, it will draw 0.83 amps.

How do you calculate amp draw on a motor?

Calculate the amps used by dividing the wattage by the voltage. For example a 500-watt motor — running on 50 volts — will draw 10 amps. A motor with the same wattage — running on 20 volts — will use 25 amps. This is the theoretical number of amps used by the motor.