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

CAPT. JOHN E. GRAHAM

MMSI 366991260 · Call sign WDC2329

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

41.5 m

Beam

11 m

Draft

3.7 m

Call sign

WDC2329

IMO

8988428

Official No.

1159258

AIS reports

CAPT. JOHN E. GRAHAM, an American utility vessel, measures 41.5 metres on deck. CAPT. JOHN E. GRAHAM has 11 metres in the beam and a 3.7-metre draft. On AIS she shows as MMSI 366991260, call sign WDC2329, IMO 8988428. Working vessels like CAPT. JOHN E. GRAHAM are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.

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Built for boats that work — like CAPT. JOHN E. GRAHAM.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

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Wherever CAPT. JOHN E. GRAHAM roams, you're never out there alone.

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

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Joining the Safety Initiative Network doesn't just put CAPT. JOHN E. GRAHAM 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.

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About CAPT. JOHN E. GRAHAM

What kind of vessel is CAPT. JOHN E. GRAHAM?

CAPT. JOHN E. GRAHAM is a Offshore Supply Vessel flagged to United States of America.

What is CAPT. JOHN E. GRAHAM's MMSI?

CAPT. JOHN E. GRAHAM's MMSI is 366991260. Call sign WDC2329. IMO 8988428.

How big is CAPT. JOHN E. GRAHAM?

CAPT. JOHN E. GRAHAM is about 41.5 m long, 11 m on the beam, drawing 3.7 m.

Is CAPT. JOHN E. GRAHAM on the Master's Mate Safety Initiative Network?

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