The HFR5-D FDR is a crash survivable recording device made for commercial air transport aircraft to accommodate mandatory flight data recording in a crash survivable memory unit. The flight data input is an ARINC 717 data stream from a flight data acquisition unit (FDAU) or similar equipment. The HFR5-D FDR retains the most recent 25 hours of recorded flight data in solid state crash survivable memory.
The HFR5-V CVR with data link recording (DLR) system is made for commercial air transport aircraft to accommodate mandatory cockpit voice recording. It simultaneously records four channels of audio present at its inputs. The HFR5-V CVR retains the most recent 2 hours of recorded information in solid state crash survivable memory.