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.

Towing Vessel

R. A. SIMS

MMSI 367489260 · Call sign WDF7896

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

15.8 m

Beam

6.1 m

Draft

2.4 m

Call sign

WDF7896

Official No.

989116

AIS reports

An American utility vessel, R. A. SIMS measures 15.8 metres. She's built with 6.1 metres in the beam and a 2.4-metre draft. She broadcasts as MMSI 367489260, call sign WDF7896. R. A. SIMS belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

Free forever · No credit card · for working boats

Built for boats that work — like R. A. SIMS.

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

Rig her out — free →

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

Wherever R. A. SIMS 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 working boats

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

Joining the Safety Initiative Network doesn't just put R. A. SIMS 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.

Claim R. A. SIMS and switch it all on

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Claim free → unlock everything

About R. A. SIMS

What kind of vessel is R. A. SIMS?

R. A. SIMS is a Towing Vessel flagged to United States of America.

What is R. A. SIMS's MMSI?

R. A. SIMS's MMSI is 367489260. Call sign WDF7896.

How big is R. A. SIMS?

R. A. SIMS is about 15.8 m long, 6.1 m on the beam, drawing 2.4 m.

Is R. A. SIMS on the Master's Mate Safety Initiative Network?

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