VDR - Recording Duration
VDR data-recording duration check - minimum 12 h full data + 48 h tamper-evident fixed capsule per MSC.333(90).
Full-data retention
12h
Retention note
Records audio, radar, ECDIS, AIS etc. 12 h full + 48 h summary
Formula, assumptions, and limits
New builds ≥ 2014-07-01 must comply MSC.333(90). Annual performance test + capsule battery replacement 6 y. VDR data replay critical for MAIB / casualty investigation.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Voyage Data Recorder | - | IMO MSC.333(90) |