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)

Naples Royal Princess V

MMSI 366820220 · Call sign WDA5449

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

24.6 m

Beam

6.1 m

Draft

1.8 m

Call sign

WDA5449

IMO

8968284

Official No.

1108402

AIS reports

Naples Royal Princess V, a passenger ferry flagged in the United States, measures 24.6 metres on deck. Below, she has a 6.1 m beam and a draft of 1.8 m. On the registers she's MMSI 366820220, call sign WDA5449, IMO 8968284. For a boat that carries people, Naples Royal Princess V can lean on the Master's Mate Safety Initiative Network — free distress alerting and a fleet that's paying attention.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard Naples Royal Princess V 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 Naples Royal Princess V 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 Naples Royal Princess V 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 Naples Royal Princess V and switch it all on

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Claim free → unlock everything

About Naples Royal Princess V

What kind of vessel is Naples Royal Princess V?

Naples Royal Princess V is a Passenger (Inspected) flagged to United States of America.

What is Naples Royal Princess V's MMSI?

Naples Royal Princess V's MMSI is 366820220. Call sign WDA5449. IMO 8968284.

How big is Naples Royal Princess V?

Naples Royal Princess V is about 24.6 m long, 6.1 m on the beam, drawing 1.8 m.

Is Naples Royal Princess V on the Master's Mate Safety Initiative Network?

Not yet. If Naples Royal Princess V is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).