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.

Towing Vessel

Joshua David Esper

MMSI 367194680 · Call sign WDD8059

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

42.6 m

Beam

13.7 m

Draft

2.6 m

Call sign

WDD8059

Official No.

558551

AIS reports

Joshua David Esper, a service vessel sailing under the American flag, measures 42.6 metres on deck. She's built with a 13.7-metre beam and a 2.6 m draft. Her papers read MMSI 367194680, call sign WDD8059. Join Joshua David Esper to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for working boats

Built for boats that work — like Joshua David Esper.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

Rig her out — free →

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

Wherever Joshua David Esper roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

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

Joining the Safety Initiative Network doesn't just put Joshua David Esper on the map. It hands you the full bridge:

Systems Monitoring

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

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.

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 Joshua David Esper and switch it all on

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About Joshua David Esper

What kind of vessel is Joshua David Esper?

Joshua David Esper is a Towing Vessel flagged to United States of America.

What is Joshua David Esper's MMSI?

Joshua David Esper's MMSI is 367194680. Call sign WDD8059.

How big is Joshua David Esper?

Joshua David Esper is about 42.6 m long, 13.7 m on the beam, drawing 2.6 m.

Is Joshua David Esper on the Master's Mate Safety Initiative Network?

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