Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Offshore Supply Vessel

ROAMING GAMB.

MMSI 367351780 · Call sign WBV4841

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

10.4 m

Beam

4.1 m

Draft

1.7 m

Call sign

WBV4841

Official No.

516947

AIS reports

ROAMING GAMB. is an American working craft — 10.4 metres overall. Her hull carries a 4.1 m beam and a draft of 1.7 m. On AIS she appears as MMSI 367351780, call sign WBV4841. Working vessels like ROAMING GAMB. are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.

Free forever · No credit card · for working boats

Built for boats that work — like ROAMING GAMB..

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

Wherever ROAMING GAMB. roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

Free with your claim · for working boats

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put ROAMING GAMB. on the map. It hands you the full bridge:

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim ROAMING GAMB. and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About ROAMING GAMB.

What kind of vessel is ROAMING GAMB.?

ROAMING GAMB. is a Offshore Supply Vessel flagged to United States of America.

What is ROAMING GAMB.'s MMSI?

ROAMING GAMB.'s MMSI is 367351780. Call sign WBV4841.

How big is ROAMING GAMB.?

ROAMING GAMB. is about 10.4 m long, 4.1 m on the beam, drawing 1.7 m.

Is ROAMING GAMB. on the Master's Mate Safety Initiative Network?

Not yet. If ROAMING GAMB. is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).