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

USS 1

MMSI 367712090 · Call sign WDI5785

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

20.3 m

Beam

5.8 m

Draft

2.1 m

Call sign

WDI5785

Official No.

274463

AIS reports

USS 1 is an American 20.3-metre service vessel. She carries a beam of 5.8 m and a 2.1 m draft. Look for MMSI 367712090, call sign WDI5785. USS 1 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 USS 1.

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 USS 1 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 USS 1 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 USS 1 and switch it all on

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About USS 1

What kind of vessel is USS 1?

USS 1 is a Towing Vessel flagged to United States of America.

What is USS 1's MMSI?

USS 1's MMSI is 367712090. Call sign WDI5785.

How big is USS 1?

USS 1 is about 20.3 m long, 5.8 m on the beam, drawing 2.1 m.

Is USS 1 on the Master's Mate Safety Initiative Network?

Not yet. If USS 1 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).