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)
Bottom Line
MMSI 367696060 · Call sign WDI4188
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
14 m
Beam
5.2 m
Draft
1.7 m
Call sign
WDI4188
Official No.
1154490
Hull ID
WESS4610A616
AIS reports
1
Registered in the United States, Bottom Line is a 14-metre passenger vessel. She's built with a beam of 5.2 m and a 1.7 m draft. Look for MMSI 367696060, call sign WDI4188. The Master's Mate Safety Initiative Network welcomes Bottom Line — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Bottom Line 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 Bottom Line 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 Bottom Line 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 Bottom Line and switch it all on
Free to join · nothing to install to start · cancel anytime
About Bottom Line
What kind of vessel is Bottom Line?
Bottom Line is a Passenger (Inspected) flagged to United States of America.
What is Bottom Line's MMSI?
Bottom Line's MMSI is 367696060. Call sign WDI4188.
How big is Bottom Line?
Bottom Line is about 14 m long, 5.2 m on the beam, drawing 1.7 m.
Is Bottom Line on the Master's Mate Safety Initiative Network?
Not yet. If Bottom Line 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.