VDR - Recording Duration

VDR data-recording duration check - minimum 12 h full data + 48 h tamper-evident fixed capsule per MSC.333(90).

VDRSOLAS VRecording

VDR type

Full-data retention: 12h

Retention note: Records audio, radar, ECDIS, AIS etc. 12 h full + 48 h summary

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{Retention} = \min(12h \text{ full}, 48h \text{ capsule})

Symbol	Meaning	Unit
$VDR$	Voyage Data Recorder

Source: IMO MSC.333(90)

In short

VDR data-recording duration check - minimum 12 h full data + 48 h tamper-evident fixed capsule per MSC.

Learn the theory Marine Bridge Equipment and Integrated Bridge Systems