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

Latitude Adjustment II

MMSI 366904540 · Call sign WDB4987

Not yet on Master's Mate

Type

Commercial Fishing Vessel

Flag

USA

Length

13.1 m

Beam

4.6 m

Draft

2.4 m

Call sign

WDB4987

Official No.

904435

Hull ID

TBP000670282

AIS reports

Latitude Adjustment II is an American fishing vessel — 13.1 metres overall. She's built with a beam measuring 4.6 metres and a 2.4-metre draft. On AIS she shows as MMSI 366904540, call sign WDB4987. Sign Latitude Adjustment II up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

Free forever · No credit card · for working captains

Know where the fleet is. Get Latitude Adjustment II 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 Latitude Adjustment II 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 Latitude Adjustment II 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 Latitude Adjustment II and switch it all on

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About Latitude Adjustment II

What kind of vessel is Latitude Adjustment II?

Latitude Adjustment II is a Commercial Fishing Vessel flagged to United States of America.

What is Latitude Adjustment II's MMSI?

Latitude Adjustment II's MMSI is 366904540. Call sign WDB4987.

How big is Latitude Adjustment II?

Latitude Adjustment II is about 13.1 m long, 4.6 m on the beam, drawing 2.4 m.

Is Latitude Adjustment II on the Master's Mate Safety Initiative Network?

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