Sign up free Dashboard Log out
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.
Passenger (Uninspected)

UNDERTAKER

U.S. Official No. 501840

Not yet on Master's Mate
Type
Passenger (Uninspected)
Flag
USAUSA
Length
12.3 m
Beam
4.4 m
Draft
2 m
First reported
Jun 2026
AIS reports
1

UNDERTAKER is an American excursion vessel, 12.3 metres from stem to stern. UNDERTAKER has 4.4 metres in the beam and a 2-metre draft. She's on record as U.S. official number 501840. It's free to add UNDERTAKER 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 passenger & charter operators

Keep every soul aboard UNDERTAKER safe.

Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.

Switch on the safety stack — free →

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

Wherever UNDERTAKER 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 passenger & charter operators

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

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

Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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 UNDERTAKER and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About UNDERTAKER

What kind of vessel is UNDERTAKER?
UNDERTAKER is a Passenger (Uninspected) flagged to United States of America.
What is UNDERTAKER's U.S. Official No.?
UNDERTAKER's U.S. Official No. is 501840.
How big is UNDERTAKER?
UNDERTAKER is about 12.3 m long, 4.4 m on the beam, drawing 2 m.
Is UNDERTAKER on the Master's Mate Safety Initiative Network?
Not yet. If UNDERTAKER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

© 2026 Master’s Mate. All rights reserved.