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)

SPIRIT OF DISCOVERY

MMSI 367167190 · Call sign WBH3170

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

43.8 m

Beam

11 m

Draft

3.5 m

Call sign

WBH3170

IMO

7641413

Official No.

574958

AIS reports

SPIRIT OF DISCOVERY is an American passenger craft — 43.8 metres overall. She has 11 metres in the beam and a draft measuring 3.5 metres. She's on record as MMSI 367167190, call sign WBH3170, IMO 7641413. SPIRIT OF DISCOVERY 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 SPIRIT OF DISCOVERY 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 SPIRIT OF DISCOVERY 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 SPIRIT OF DISCOVERY 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 DISCOVERY and switch it all on

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About SPIRIT OF DISCOVERY

What kind of vessel is SPIRIT OF DISCOVERY?

SPIRIT OF DISCOVERY is a Passenger (Inspected) flagged to United States of America.

What is SPIRIT OF DISCOVERY's MMSI?

SPIRIT OF DISCOVERY's MMSI is 367167190. Call sign WBH3170. IMO 7641413.

How big is SPIRIT OF DISCOVERY?

SPIRIT OF DISCOVERY is about 43.8 m long, 11 m on the beam, drawing 3.5 m.

Is SPIRIT OF DISCOVERY on the Master's Mate Safety Initiative Network?

Not yet. If SPIRIT OF DISCOVERY is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).