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

HDF #I

MMSI 367006450 · Call sign WBC4106

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

15.7 m

Beam

7.3 m

Draft

2.5 m

Call sign

WBC4106

Official No.

641507

AIS reports

HDF #I is an American working craft — 15.7 metres overall. She has a beam measuring 7.3 metres and a draft of 2.5 m. Her papers read MMSI 367006450, call sign WBC4106. It's free to add HDF #I to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.

Free forever · No credit card · for working boats

Built for boats that work — like HDF #I.

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 HDF #I 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 HDF #I 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 HDF #I and switch it all on

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

Claim free → unlock everything

About HDF #I

What kind of vessel is HDF #I?

HDF #I is a Towing Vessel flagged to United States of America.

What is HDF #I's MMSI?

HDF #I's MMSI is 367006450. Call sign WBC4106.

How big is HDF #I?

HDF #I is about 15.7 m long, 7.3 m on the beam, drawing 2.5 m.

Is HDF #I on the Master's Mate Safety Initiative Network?

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