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RC Propeller Thrust Calculator

Thrust Formula:

\[ T = \rho \times A \times v^2 \times C_T \]

kg/m³
m/s
N

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1. What is an RC Propeller Thrust Calculator?

Definition: This calculator estimates the thrust generated by an RC aircraft propeller based on air density, propeller area, air velocity, and thrust coefficient.

Purpose: It helps RC aircraft designers and hobbyists determine propeller performance and select appropriate components.

2. How Does the Calculator Work?

The calculator uses the thrust formula:

\[ T = \rho \times A \times v^2 \times C_T \]

Where:

Explanation: Thrust is proportional to air density, propeller area, and the square of air velocity, scaled by the thrust coefficient.

3. Importance of Thrust Calculation

Details: Proper thrust estimation ensures adequate aircraft performance, climb rate, and maneuverability while preventing motor overload.

4. Using the Calculator

Tips: Enter air density (default 1.225 kg/m³ at sea level), propeller area, air velocity, and thrust coefficient (default 0.1). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I calculate propeller area?
A: Area = π × (propeller diameter/2)². Convert diameter to meters first.

Q2: What's a typical thrust coefficient?
A: Most RC propellers have C_T between 0.05 and 0.15, depending on design and pitch.

Q3: How does altitude affect thrust?
A: Higher altitudes have lower air density (ρ), reducing thrust. Adjust ρ accordingly.

Q4: What air velocity should I use?
A: Use the propeller's induced velocity or aircraft's forward speed, depending on calculation purpose.

Q5: How does this relate to motor power?
A: Thrust × velocity gives power. Ensure your motor can provide sufficient power for calculated thrust.

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