How To Do A Telemetry Flight Of Diy Fpv Model Airplanes

By Author: Happy Little
Total Articles: 9
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Do you not know how to prepare your model aircraft or which components to use to carry out a telemetry flight for your DIY FPV plane? Well, this text is here to help you! We will give a brief introduction to why this data is important, discuss what are the possible data to be obtained in a telemetry flight and the sensors necessary for that data to be obtained.

All of that in order to provide pilots everywhere with a quick guide on how to take another step towards the improvement of your DIY FPV model aircraft so that it becomes more consistent in terms of flight results and decreases the chances of failure due to engine problems or lack of planning.

To get started it is important to know where to buy all of this equipment, and horusrc.com. is a great option. At HorusRC you can find high-quality products at low prices, such as the FrSky Neuron 40S ESC or FrSky Neuron 60S ESC with diminished size and optional BEC function, which we will discuss more in-depth later.
Importance of telemetry

After assembling your model, it is necessary to check the accuracy of the flight situations imagined in contrast ...
... to the real ones that the plane will face. This is important to reduce the exaggerations of the project and guarantee that the airplane will be fast and easy to control. For this verification, we use the aircraft's in-flight telemetry so we get data that allows improving the initial project.

Doing a telemetry flight is especially important for DIY planes. As this type of model is designed and built by hand, it is not possible to obtain such data online, and you’ll use the telemetry data to evaluate various parameters, such as the right batteries to be used. But in this case, the owner himself has to apply and configure the sensors in the aircraft.

The right equipment

In a model aircraft, the total weight has a great influence on the overall flight performance and its maneuverability. Therefore, the designer has to obtain as much data as possible on the performance of his plane while adding as little weight as they can. It is a meticulous task that must be carried out efficiently, without excess, in order to affect the weight to a minimum.

To achieve the highest fidelity to the characteristics of flight without telemetry devices, it is essential to use an ESC (Electronic Speed Control). The ESC is a device that ensures the correct functioning of your motor, limiting the current to avoid overheating and obtaining data on the battery voltage, the motor’s current, the energy consumption, and the temperature.

We strongly recommend using the FrSky Neuron 40s ESC or the FrSky Neuron 60S ESC, according to the motor’s Continuous Current. The advantage of these products over competitors’, in addition to being very small and incredibly lightweight, is the fact that these ESCs are S.port compatible.

S.port, or Smart Port, is a feature present in most FrSky’s telemetry sensors that allow for easier setup, easier assembly, and efficient data transmission. By using a Neuron S-series ESC, you’ll have automatic compatibility with the entire range of FrSky telemetry sensors that use S.port, such as the GPS sensor, wind speed sensor, and RPM sensor.

The recommended ESC will already measure the engine’s voltage, current, RPM and power consumption, and the ESC temperature. For you to perform the basic measurements, you will also need, in addition to an ESC, a GPS sensor, a wind speed sensor, and a temperature sensor. All of these sensors are easily purchased at horusrc.com., the main retailer of FrSky products.

Telemetry Data

In the case more complex data is needed, there is also the option of adding Arduino compatible sensors connected to an Arduino microcontroller that has the code for obtaining data. Some examples of such sensors are a gyroscope and an accelerometer Although these are less straightforward to set up, they will acquire interesting, supplemental data regarding some behaviors of the aircraft during flight.

After the telemetry has been performed, you need to analyze the data obtained in order to reevaluate the dimensioning of the plane and, if necessary, make changes to ensure the best performance and reliability of your project. After all, being a DIY FPV airplane, a lot of time and effort has been invested in it and nobody wants everything to go to waste due to a design or construction error.

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