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 (Inspected)
Cal Fremling
MMSI 367615110 · Call sign WDH4190
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
18.3 m
Beam
5.2 m
Draft
1.2 m
Call sign
WDH4190
Official No.
1253907
Hull ID
SKRC2002C314
AIS reports
1
An American passenger craft, Cal Fremling measures 18.3 metres. She has 5.2 metres in the beam and a draft measuring 1.2 metres. On AIS she appears as MMSI 367615110, call sign WDH4190. It's free to add Cal Fremling 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 Cal Fremling 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 Cal Fremling 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 Cal Fremling 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 Cal Fremling and switch it all on
Free to join · nothing to install to start · cancel anytime
About Cal Fremling
What kind of vessel is Cal Fremling?
Cal Fremling is a Passenger (Inspected) flagged to United States of America.
What is Cal Fremling's MMSI?
Cal Fremling's MMSI is 367615110. Call sign WDH4190.
How big is Cal Fremling?
Cal Fremling is about 18.3 m long, 5.2 m on the beam, drawing 1.2 m.
Is Cal Fremling on the Master's Mate Safety Initiative Network?
Not yet. If Cal Fremling is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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