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 PHILADELPHIA

MMSI 366955570 · Call sign WAA5488

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

47.8 m

Beam

10.7 m

Draft

2.2 m

Call sign

WAA5488

Official No.

943275

AIS reports

Registered in the United States, SPIRIT OF PHILADELPHIA is a 47.8-metre excursion vessel. SPIRIT OF PHILADELPHIA has a beam of 10.7 m and a 2.2-metre draft. Her registration reads MMSI 366955570, call sign WAA5488. Put SPIRIT OF PHILADELPHIA 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 SPIRIT OF PHILADELPHIA 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 PHILADELPHIA 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 PHILADELPHIA 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 PHILADELPHIA and switch it all on

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About SPIRIT OF PHILADELPHIA

What kind of vessel is SPIRIT OF PHILADELPHIA?

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

What is SPIRIT OF PHILADELPHIA's MMSI?

SPIRIT OF PHILADELPHIA's MMSI is 366955570. Call sign WAA5488.

How big is SPIRIT OF PHILADELPHIA?

SPIRIT OF PHILADELPHIA is about 47.8 m long, 10.7 m on the beam, drawing 2.2 m.

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

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