Like the aircraft's flight data recorder (FDR), a QAR receives its inputs from the Flight Data Acquisition Unit (FDAU), recording over 2000 flight parameters.
与飞机的飞行数据记录仪（FDR）相同，QAR从飞行数据采集单元（FDAU）接收输入，记录超过2000项飞行参数。