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.
High-speed Craft
NAPA
MMSI 366771550 · Call sign WDE8110
Not yet on Master's MateType
High-speed Craft
Flag
USALength
43 m
Beam
12 m
Draft
2 m
Call sign
WDE8110
IMO
8643004
Official No.
1084026
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
46
On the American registry, NAPA is a 43-metre ferry. She's built with a 12-metre beam and a 2-metre draft. Find her under MMSI 366771550, call sign WDE8110, IMO 8643004. Put NAPA on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard NAPA 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
Last known position · Jun 4, 2026
Position
37.9164° N, 122.4590° W
Sailing San Francisco Bay? 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 NAPA 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 NAPA and switch it all on
Free to join · nothing to install to start · cancel anytime
About NAPA
What kind of vessel is NAPA?
NAPA is a High-speed Craft flagged to United States of America.
Where was NAPA last seen?
NAPA was last reported in San Francisco Bay in Jun 2026 on public AIS.
What is NAPA's MMSI?
NAPA's MMSI is 366771550. Call sign WDE8110. IMO 8643004.
How big is NAPA?
NAPA is about 43 m long, 12 m on the beam, drawing 2 m.
Is NAPA on the Master's Mate Safety Initiative Network?
Not yet. If NAPA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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