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)
Back Down 2
MMSI 367685790 · Call sign WDI3181
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
17.4 m
Beam
5.4 m
Draft
2.3 m
Call sign
WDI3181
Official No.
956639
AIS reports
1
Back Down 2 flies the American flag — a 17.4-metre ferry. She carries a beam of 5.4 m and a 2.3-metre draft. Find her under MMSI 367685790, call sign WDI3181. Back Down 2 carries passengers; the free Master's Mate Safety Initiative Network helps carry the watch, with distress alerting and a network nearby.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Back Down 2 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 Back Down 2 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 Back Down 2 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 Back Down 2 and switch it all on
Free to join · nothing to install to start · cancel anytime
About Back Down 2
What kind of vessel is Back Down 2?
Back Down 2 is a Passenger (Inspected) flagged to United States of America.
What is Back Down 2's MMSI?
Back Down 2's MMSI is 367685790. Call sign WDI3181.
How big is Back Down 2?
Back Down 2 is about 17.4 m long, 5.4 m on the beam, drawing 2.3 m.
Is Back Down 2 on the Master's Mate Safety Initiative Network?
Not yet. If Back Down 2 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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