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First flight, instant crash after takeoff, FLYxxx.DAT?
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<blockquote data-quote="Dronason" data-source="post: 8705" data-attributes="member: 553"><p>It will switch to ATTI mode after compass error where only the accelerometer and gyro sensors are used. If these one have some zero error, they will induce a drift in addition to the wind. It can be from negligible to significant. The accelerometer error will tend to make the Spark not flat and so it will have an angle and start to drift. The gyro error will create some rotation that will amplify the drift and add some rotation at same time. It is there that IMU calibration is critical. When there is GPS and compass they can compensate for small IMU error.</p></blockquote><p></p>
[QUOTE="Dronason, post: 8705, member: 553"] It will switch to ATTI mode after compass error where only the accelerometer and gyro sensors are used. If these one have some zero error, they will induce a drift in addition to the wind. It can be from negligible to significant. The accelerometer error will tend to make the Spark not flat and so it will have an angle and start to drift. The gyro error will create some rotation that will amplify the drift and add some rotation at same time. It is there that IMU calibration is critical. When there is GPS and compass they can compensate for small IMU error. [/QUOTE]
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First flight, instant crash after takeoff, FLYxxx.DAT?