Converting Rotor Frequency to Helicopter Thrust: Finding the Missing Equation

In summary, the conversation discusses an EEI project on how ground effect affects an RC helicopter's thrust. The individual is looking for equations or methods to calculate the power and thrust of the helicopter, particularly through measuring the frequency of the rotor blades at different heights using a stroboscope. However, they have only found equations that use power and not frequency. They inquire about ways to convert between the two or alternative methods for calculating thrust.
  • #1
hbooth93
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0

Homework Statement



I am doing an EEI relating to how the ground effect influences an RC helicopter's thrust.

Homework Equations


Are there any equations for converting the frequency of a helicopter's rotor blades to the power used? or alternatively is there another way to calculate the thrust generated by a helicopter at a given point?

The Attempt at a Solution


I am looking at measuring the frequency of the rotor at different heights above the ground with a stroboscrope. However, the only equations I have found use power not frequency to calculate the thrust of the helicopter.
 
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  • #2
Is there a way to convert the frequency of the blades to the power used? or alternatively is there another way to calculate the thrust?
 

1. What is the role of weight and balance in RC helicopter flight physics?

Weight and balance play a crucial role in RC helicopter flight physics. The weight of the helicopter affects its lift and maneuverability, while the balance determines its stability in flight. A well-balanced helicopter will have better control and be less prone to crashes.

2. How do airfoils and rotor blades impact the lift and thrust of an RC helicopter?

Airfoils and rotor blades are essential components of an RC helicopter that generate lift and thrust. The airfoil shape and angle of attack determine the amount of lift, while the shape and pitch of the rotor blades control the amount of thrust. These factors work together to keep the helicopter in the air.

3. What is the effect of wind on RC helicopter flight?

Wind can greatly impact the flight of an RC helicopter. Strong winds can make it difficult to control and maintain stability, while gusts of wind can cause sudden changes in direction. Pilots must learn to adjust their flight techniques and anticipate wind conditions to fly in challenging weather.

4. How does the center of gravity affect the stability of an RC helicopter?

The center of gravity (CG) is the point where the weight of the helicopter is evenly distributed. If the CG is too far forward or backward, the helicopter will be unstable and difficult to control. It is crucial to ensure the CG is properly balanced for safe and stable flight.

5. Can you explain the concept of cyclic and collective pitch in RC helicopter flight?

Cyclic and collective pitch are two control inputs that pilots use to change the attitude and altitude of an RC helicopter. The cyclic pitch tilts the rotor blades to control the direction of flight, while the collective pitch changes the angle of the blades to increase or decrease the lift. Proper coordination of these inputs is necessary for smooth and precise flight.

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