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

Stonewell Pioneer

MMSI 538005156

Not yet on Master's Mate

Flag

MHL

Length

189 m

IMO

9679385

AIS reports

Stonewell Pioneer, a vessel flying the Marshall Islands flag, measures 189 metres on deck. Officially she's MMSI 538005156, IMO 9679385. Sign Stonewell Pioneer up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

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Is Stonewell Pioneer 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 Stonewell Pioneer 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 Stonewell Pioneer 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 Stonewell Pioneer and switch it all on

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About Stonewell Pioneer

What kind of vessel is Stonewell Pioneer?

Stonewell Pioneer is a vessel flagged to Marshall Islands.

What is Stonewell Pioneer's MMSI?

Stonewell Pioneer's MMSI is 538005156. IMO 9679385.

How big is Stonewell Pioneer?

Stonewell Pioneer is about 189 m long.

Is Stonewell Pioneer on the Master's Mate Safety Initiative Network?

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