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.

Offshore Supply Vessel

ENDEAVOR

MMSI 366868410 · Call sign WDA9738

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

14.4 m

Beam

6.1 m

Draft

1.6 m

Call sign

WDA9738

Official No.

623966

AIS reports

ENDEAVOR, an American harbour workboat, measures 14.4 metres on deck. Below, she has a 6.1 m beam and a draft of 1.6 m. Officially she's MMSI 366868410, call sign WDA9738. Add ENDEAVOR to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

Free forever · No credit card · for working boats

Built for boats that work — like ENDEAVOR.

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 ENDEAVOR 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 ENDEAVOR 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 ENDEAVOR and switch it all on

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

Claim free → unlock everything

About ENDEAVOR

What kind of vessel is ENDEAVOR?

ENDEAVOR is a Offshore Supply Vessel flagged to United States of America.

What is ENDEAVOR's MMSI?

ENDEAVOR's MMSI is 366868410. Call sign WDA9738.

How big is ENDEAVOR?

ENDEAVOR is about 14.4 m long, 6.1 m on the beam, drawing 1.6 m.

Is ENDEAVOR on the Master's Mate Safety Initiative Network?

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