MMSI 367318770 · Call sign WUX4958
Not yet on Master's MateINVICTUS IV flies the American flag — an 11.3-metre private vessel. She has a 3.7-metre beam and a draft of 2.7 m. On AIS she appears as MMSI 367318770, call sign WUX4958. There's a place for INVICTUS IV on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put INVICTUS IV on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.