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.
Recreational

Semper Fideles

MMSI 368041280 · Call sign WDK3036

Not yet on Master's Mate
Type
Recreational
Flag
USAUSA
Length
12 m
Beam
4 m
Draft
3.2 m
Call sign
WDK3036
Official No.
1242205
AIS reports
1

Semper Fideles, a family boat listed on the the United States registry, measures 12 metres on deck. She carries a beam of 4 m and a 3.2-metre draft. Her papers read MMSI 368041280, call sign WDK3036. Semper Fideles can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.

Free forever · No credit card · for recreational captains

Keep Semper Fideles looked after — even when you’re not aboard.

Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.

Look after her — claim free →

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

Wherever Semper Fideles 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 recreational captains

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

Joining the Safety Initiative Network doesn't just put Semper Fideles 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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 Semper Fideles and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About Semper Fideles

What kind of vessel is Semper Fideles?
Semper Fideles is a Recreational flagged to United States of America.
What is Semper Fideles's MMSI?
Semper Fideles's MMSI is 368041280. Call sign WDK3036.
How big is Semper Fideles?
Semper Fideles is about 12 m long, 4 m on the beam, drawing 3.2 m.
Is Semper Fideles on the Master's Mate Safety Initiative Network?
Not yet. If Semper Fideles 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.