RT_INS_Turn_Radius INS Turn Radius
RT_INS_Turn_Radius: 142, 25 (0x8E1920 + unit id) (0x399)
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Byte 0: Validity
Byte 1: Accuracy
Bytes 2-5: INS Turn Radius [m]
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Resolution of turn radius is m/1000
Turn radius is positive when turning right, negative when turning left