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
SPIRIT OF BOSTON
MMSI 367148860 · Call sign WDD4774
Not yet on Master's MateType
Passenger
Flag
USALength
47 m
Beam
12 m
Draft
3.5 m
Call sign
WDD4774
IMO
8793330
Official No.
954835
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
66
SPIRIT OF BOSTON, an American passenger vessel, measures 47 metres on deck. She carries a 12 m beam and a 3.5 m draft. On AIS she shows as MMSI 367148860, call sign WDD4774, IMO 8793330. It's free to add SPIRIT OF BOSTON 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 SPIRIT OF BOSTON 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
Live AIS position · Jun 10, 2026 00:26 UTC
Position
42.3512° N, 71.0418° W
Status
Under way (engine)
Speed
0.0 kn
Course
348°
Destination
CRUISE?
Sailing the Gulf of Maine? 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 SPIRIT OF BOSTON 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 SPIRIT OF BOSTON and switch it all on
Free to join · nothing to install to start · cancel anytime
About SPIRIT OF BOSTON
What kind of vessel is SPIRIT OF BOSTON?
SPIRIT OF BOSTON is a Passenger flagged to United States of America.
Where was SPIRIT OF BOSTON last seen?
SPIRIT OF BOSTON was last reported in the Gulf of Maine in Jun 2026 on public AIS.
What is SPIRIT OF BOSTON's MMSI?
SPIRIT OF BOSTON's MMSI is 367148860. Call sign WDD4774. IMO 8793330.
How big is SPIRIT OF BOSTON?
SPIRIT OF BOSTON is about 47 m long, 12 m on the beam, drawing 3.5 m.
Is SPIRIT OF BOSTON on the Master's Mate Safety Initiative Network?
Not yet. If SPIRIT OF BOSTON is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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