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.

Commercial Fishing Vessel

SIERRA GALE

MMSI 366915090 · Call sign WDB5922

Not yet on Master's Mate

Type

Commercial Fishing Vessel

Flag

USA

Length

17.1 m

Beam

4.7 m

Draft

2.1 m

Call sign

WDB5922

Official No.

964646

AIS reports

SIERRA GALE is an American 17.1-metre commercial fishing vessel. She carries a beam measuring 4.7 metres and a 2.1-metre draft. She's on record as MMSI 366915090, call sign WDB5922. SIERRA GALE is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

Free forever · No credit card · for working captains

Know where the fleet is. Get SIERRA GALE home safe.

Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.

Keep the fleet in sight — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever SIERRA GALE 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 working captains

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put SIERRA GALE on the map. It hands you the full bridge:

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

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 SIERRA GALE and switch it all on

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About SIERRA GALE

What kind of vessel is SIERRA GALE?

SIERRA GALE is a Commercial Fishing Vessel flagged to United States of America.

What is SIERRA GALE's MMSI?

SIERRA GALE's MMSI is 366915090. Call sign WDB5922.

How big is SIERRA GALE?

SIERRA GALE is about 17.1 m long, 4.7 m on the beam, drawing 2.1 m.

Is SIERRA GALE on the Master's Mate Safety Initiative Network?

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