MMSI 366971540 · Call sign WDQ5035
Not yet on Master's MateFred Johannsen is a workboat on the the United States registry, 14.4 metres in length. Fred Johannsen has a 5.5-metre beam and a 1.8 m draft. She's listed under MMSI 366971540, call sign WDQ5035. Fred Johannsen can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put Fred Johannsen on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.