How do I choose the right motor for my RC plane?
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How do I choose the right motor for my RC plane?
The kv of your motor is the number of revolutions per minute it will spin per volt. The lower the kv, the stronger the motor and as a result, you will want a larger propeller for maximum thrust. Often slower motors will also result in slower flying planes, a big plus for your first hobby grade rc plane.
How do you size an electric RC airplane motor?
Electric motor power is stated in watts. 750 watts = 1 horsepower. An easy way to estimate power needs for RC hobby applications is to use 100 watts per pound for sport flying, 150 for aggressive aerobatics, 200 watts per pound for 3D flying.
How do I choose a servo motor for my RC plane?
Here’s a look at the key parameters to consider when sizing a servo motor.
- Load. Correctly sizing a servo motor begins with knowing the load.
- Speed. Another important factor is the speed or velocity.
- Torque. Once the load and speed are known, calculate the required torque values.
- Sizing Software.
- A Word About Gearing.
How much power does my RC plane need?
90 to 110 watts per pound is good for fast-flying scale models and some sport aerobatic aircraft. 110 to 130 watts per pound is what you want for advanced aerobatics and high-speed aircraft. 130 to 150 watts per pound is needed for lightly loaded 3D models and ducted fans.
How much thrust does my RC plane need?
To calculate this with the weight of your model plane, simply replace the 1 by the weight and multiply the number on the left side by the weight, so if your model plane is 1.2 Kg and it is a trainer type model plane, we are going to use 0.7 : 1 = 0.7: 1.2 by multiplying this we obtain 0.84 Kg (840g) this is the thrust …
What is a good thrust-to-weight ratio RC plane?
The power/weight ratio can be expressed as follows: 0.5: 1 means that the thrust is half the weight, with this in mind, for gliders or light and slow-flying model aircraft, a ratio of between 0.3: 1 to 0.4: 1 on trainer models from 0.5: 1 to 0.8: 1 and on fast models from 0.8: 1 onwards.
What is the minimum thrust-to-weight ratio?
Acceptable Thrust to weight(rocket and installed motors) ratio: A minimum ratio of 5:1 is typically required. This can be as low as 3:1 at the RSO’s discretion. This decision will require low ground level winds and stable design (Cg more than 1 caliber ahead of Cp).
How do I choose a RC plane propeller?
To finalize the propeller diameter, look at the airplane’s wingspan. If the propeller is too large, the torque and gyroscopic effects coming from it will cause adverse flight characteristics that we don’t want. It’s generally a good idea to keep the propeller at approximately 25% of the overall wingspan.
