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

REB 1901

U.S. Official No. 500271

Not yet on Master's Mate

Type

Tank Barge

Flag

USA

Length

73.2 m

Beam

15.2 m

Draft

3.4 m

First reported

Jun 2026

AIS reports

REB 1901 is an American tank ship — 73.2 metres overall. She has a 15.2-metre beam and a draft measuring 3.4 metres. On the registers she's U.S. official number 500271. Give REB 1901 the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

Free forever · No credit card · for commercial operators

Eyes on REB 1901, 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 REB 1901 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 REB 1901 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 REB 1901 and switch it all on

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

Claim free → unlock everything

About REB 1901

What kind of vessel is REB 1901?

REB 1901 is a Tank Barge flagged to United States of America.

What is REB 1901's U.S. Official No.?

REB 1901's U.S. Official No. is 500271.

How big is REB 1901?

REB 1901 is about 73.2 m long, 15.2 m on the beam, drawing 3.4 m.

Is REB 1901 on the Master's Mate Safety Initiative Network?

Not yet. If REB 1901 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).