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.

Tank Barge

Double Skin 31

MMSI 367794710 · Call sign WDOI

Not yet on Master's Mate

Type

Tank Barge

Flag

USA

Length

76 m

Beam

19.5 m

Draft

4.9 m

Call sign

WDOI

Official No.

1078863

AIS reports

Out of the United States, Double Skin 31 is a 76-metre tank vessel. Double Skin 31 has a beam measuring 19.5 metres and a 4.9-metre draft. Look for MMSI 367794710, call sign WDOI. Add Double Skin 31 to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

Free forever · No credit card · for commercial operators

Eyes on Double Skin 31, around the clock.

Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.

Put her on the dashboard — free →

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

Wherever Double Skin 31 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 commercial operators

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

Joining the Safety Initiative Network doesn't just put Double Skin 31 on the map. It hands you the full bridge:

Live AIS & Traffic

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

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.

Worldwide Charts

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

Weather & Routing

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

Anchor Watch

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

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 Double Skin 31 and switch it all on

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

Claim free → unlock everything

About Double Skin 31

What kind of vessel is Double Skin 31?

Double Skin 31 is a Tank Barge flagged to United States of America.

What is Double Skin 31's MMSI?

Double Skin 31's MMSI is 367794710. Call sign WDOI.

How big is Double Skin 31?

Double Skin 31 is about 76 m long, 19.5 m on the beam, drawing 4.9 m.

Is Double Skin 31 on the Master's Mate Safety Initiative Network?

Not yet. If Double Skin 31 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).