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.

School Ship

USNS Contender

MMSI 367604000 · Call sign WTAU

Not yet on Master's Mate

Type

School Ship

Flag

USA

Length

60 m

Call sign

WTAU

IMO

8835463

Official No.

587816

AIS reports

USNS Contender flies the American flag — a 60-metre craft. She's listed under MMSI 367604000, call sign WTAU, IMO 8835463. Put USNS Contender on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.

Free forever · No credit card

Is USNS Contender your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

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

Wherever USNS Contender 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

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

Joining the Safety Initiative Network doesn't just put USNS Contender on the map. It hands you the full bridge:

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.

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.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

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.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim USNS Contender and switch it all on

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

Claim free → unlock everything

About USNS Contender

What kind of vessel is USNS Contender?

USNS Contender is a School Ship flagged to United States of America.

What is USNS Contender's MMSI?

USNS Contender's MMSI is 367604000. Call sign WTAU. IMO 8835463.

How big is USNS Contender?

USNS Contender is about 60 m long.

Is USNS Contender on the Master's Mate Safety Initiative Network?

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