This article clarifies the meaning of a list of errors that a user might encounter from WingtraOne and WingtraPilot.
WingtraOne's flight controller uses information from different on-board sensors (accelerometer, gyroscope, GPS, magnetometer, etc.) together with an estimation algorithm to estimate its own state, i.e. position, orientation, velocity, and so on, in real time. This algorithm is called the state estimator.
- "Estimator error. Repower WingtraOne. If issue persists, please contact support." Any faulty sensor or bad sensor reading can cause the estimator diverge from a sensible state, which leads to an estimator error. A possible immediate solution is to move the WingtraOne to another take-off location and re-power it. If that doesn't work, and the error appears consistently, get the flight logs and contact Wingtra Support.
The magnetometer uses the magnetic field to define the WingtraOne's heading or direction. Flying with a bad magnetometer or without a magnetometer can cause the WingtraOne to fly in a totally wrong direction or, in the worst case scenario, crash.
- "Magnetic anomalies detected. Repower WingtraOne. If issue persists, please contact support." Magnetometer detects abnormal readings. This can be caused by magnetic field distortion from metal objects or electromagnetic interference from electronics and power stations. A possible immediate solution is to remove metal objects from your body and away from WingtraOne, place the WingtraOne in a location where it is far away from a strong magnetic source, repower the WingtraOne and try again. If all of the above fails to help, and this error appears consistently, get the flight logs and contact Wingtra Support.
WingtraOne uses two smart batteries as the power source. The smart batteries allow the WingtraOne to extract different information—state of charge, health, etc.—about the batteries that enhances safety when using them in flight. Instead of a single cell, two 99 Wh batteries are required to power up the WingtraOne, which eases the transportation process (airlines and air shipment do not accept batteries with more than 100 Wh). For more information about how to handle the batteries, please refer to the battery charging article.
- "Smart battery connection not detected. Make sure the cable is correctly plugged in." There will always be a black micro-USB cable on one of the paired batteries. This cable is the smart battery cable, which allows the WingtraOne to read more information from the batteries. A possible immediate solution is to check if the connector is properly plugged in, swap a different cable (you'll find such a spare cable in your pilot box) or batteries pair, to see if the problem is on the batteries. Otherwise, it is most likely the WingtraOne's connector which is faulty, contact Wingtra Support in this case.
- "Unequal battery levels detected. Make sure to use batteries at the same power level." The smart battery technology and cable allow WingtraOne to check if both batteries have the same power level and does not allow batteries with different power levels to take off. So please make sure you charge the batteries the right way and use them always in pairs. A possible immediate solution is to exchange another set of properly charged batteries. Otherwise, get the flight logs and contact Wingtra Support.
- "Batteries are overheated. Make sure to not expose them to the heat." WingtraOne batteries can only operate in the temperature range of 10°C to 40°C. Please keep them in an air-conditioned, indoor space (e.g. car) or under the shades when the weather is hot. As an additional precaution, only insert the batteries into the WingtraOne before starting the pre-flight checklist (after the flight plan is created).
- "Batteries are too cold. Warm them up to room temperature before flying." WingtraOne batteries can only operate in the temperature range of 10°C to 40°C. Please keep them in a heated indoor space when the weather is cold.
Motors / drivetrains error
WingtraOne runs motor checks before every take off. It spins each motor very quickly for two instances and checks the current drawn from these spins. WingtraOne will only take off if the detected current drawn is indicating that both motors are spinning.
- "Right/Left motor failure. Please check if the propeller is screwed on correctly and then re-power the WingtraOne." If one or both propeller(s) is (are) not properly tightened before take-off, this can lead to a failed motor check. Another known issue is that, occasionally, the motor doesn't get power from the electronic speed controller and the motor doesn't spin (this will happen only upon take-off but not in the air). This will also lead to a failed motor check. A possible immediate solution is to check that the propellers are tightened properly and then try to take off again. In case this fails consistently for more than two attempts, get the flight logs and contact Wingtra Support.