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

freedom rider IV

MMSI 367698850 · Call sign WDI4457

Not yet on Master's Mate
Type
Recreational
Flag
USAUSA
Length
10.5 m
Beam
3.4 m
Draft
1.5 m
Call sign
WDI4457
Official No.
677096
AIS reports
1

An American pleasure craft, freedom rider IV measures 10.5 metres. She's built with 3.4 metres in the beam and a 1.5 m draft. On AIS she appears as MMSI 367698850, call sign WDI4457. It's free to add freedom rider IV 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 recreational captains

Keep freedom rider IV 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 freedom rider IV 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 freedom rider IV 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 freedom rider IV and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About freedom rider IV

What kind of vessel is freedom rider IV?
freedom rider IV is a Recreational flagged to United States of America.
What is freedom rider IV's MMSI?
freedom rider IV's MMSI is 367698850. Call sign WDI4457.
How big is freedom rider IV?
freedom rider IV is about 10.5 m long, 3.4 m on the beam, drawing 1.5 m.
Is freedom rider IV on the Master's Mate Safety Initiative Network?
Not yet. If freedom rider IV 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.