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.

Vessel

RT Roebuck Bay

MMSI 503000116

Not yet on Master's Mate

Flag

AUS

Length

42 m

IMO

9745885

AIS reports

Registered in Ashmore and Cartier Islands, RT Roebuck Bay is a 42-metre craft. Look for MMSI 503000116, IMO 9745885. Join RT Roebuck Bay to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

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Is RT Roebuck Bay your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever RT Roebuck Bay 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

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

Joining the Safety Initiative Network doesn't just put RT Roebuck Bay on the map. It hands you the full bridge:

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.

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.

Onboard Cameras

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

Systems Monitoring

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

Distress Mesh

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

Hail Any Captain

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

Claim RT Roebuck Bay and switch it all on

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About RT Roebuck Bay

What kind of vessel is RT Roebuck Bay?

RT Roebuck Bay is a vessel flagged to Ashmore and Cartier Islands.

What is RT Roebuck Bay's MMSI?

RT Roebuck Bay's MMSI is 503000116. IMO 9745885.

How big is RT Roebuck Bay?

RT Roebuck Bay is about 42 m long.

Is RT Roebuck Bay on the Master's Mate Safety Initiative Network?

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