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.
Commercial Fishing Vessel
Madame butterfly
MMSI 367695980 · Call sign WDI4180
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
19.1 m
Beam
6 m
Draft
3.1 m
Call sign
WDI4180
Official No.
606185
AIS reports
1
Registered in the United States, Madame butterfly is a 19.1-metre offshore fishing boat. She's built with a beam measuring 6 metres and a 3.1 m draft. On the registers she's MMSI 367695980, call sign WDI4180. Claim Madame butterfly free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for working captains
Know where the fleet is. Get Madame butterfly home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Madame butterfly 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 working captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Madame butterfly on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 Madame butterfly and switch it all on
Free to join · nothing to install to start · cancel anytime
About Madame butterfly
What kind of vessel is Madame butterfly?
Madame butterfly is a Commercial Fishing Vessel flagged to United States of America.
What is Madame butterfly's MMSI?
Madame butterfly's MMSI is 367695980. Call sign WDI4180.
How big is Madame butterfly?
Madame butterfly is about 19.1 m long, 6 m on the beam, drawing 3.1 m.
Is Madame butterfly on the Master's Mate Safety Initiative Network?
Not yet. If Madame butterfly 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.