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

TUG CHALLENGER

MMSI 366944140 · Call sign WCP2241

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

31.6 m

Beam

9.4 m

Draft

4.7 m

Call sign

WCP2241

IMO

7600378

Official No.

576417

AIS reports

Registered in the United States, TUG CHALLENGER is a 31.6-metre utility vessel. She's built with a 9.4-metre beam and a 4.7-metre draft. On AIS she shows as MMSI 366944140, call sign WCP2241, IMO 7600378. TUG CHALLENGER can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

Free forever · No credit card · for working boats

Built for boats that work — like TUG CHALLENGER.

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 TUG CHALLENGER 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 TUG CHALLENGER 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 TUG CHALLENGER and switch it all on

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

Claim free → unlock everything

About TUG CHALLENGER

What kind of vessel is TUG CHALLENGER?

TUG CHALLENGER is a Towing Vessel flagged to United States of America.

What is TUG CHALLENGER's MMSI?

TUG CHALLENGER's MMSI is 366944140. Call sign WCP2241. IMO 7600378.

How big is TUG CHALLENGER?

TUG CHALLENGER is about 31.6 m long, 9.4 m on the beam, drawing 4.7 m.

Is TUG CHALLENGER on the Master's Mate Safety Initiative Network?

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