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.
Tanker
EVER VIGOROUS
MMSI 636023607 · Call sign 5LON4
Not yet on Master's MateType
Tanker
Flag
LBRLength
170 m
Beam
26 m
Draft
7 m
Call sign
5LON4
IMO
9294288
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
EVER VIGOROUS is a tank ship under the Liberian flag, 170 metres long. She has 26 metres in the beam and a draft of 7 m. Her papers read MMSI 636023607, call sign 5LON4, IMO 9294288. Claim EVER VIGOROUS free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on EVER VIGOROUS, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
39.2261° N, 76.5368° W
Transiting Chesapeake Bay? 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put EVER VIGOROUS 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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 EVER VIGOROUS and switch it all on
Free to join · nothing to install to start · cancel anytime
About EVER VIGOROUS
What kind of vessel is EVER VIGOROUS?
EVER VIGOROUS is a Tanker flagged to Liberia.
Where was EVER VIGOROUS last seen?
EVER VIGOROUS was last reported in Chesapeake Bay in Jun 2026 on public AIS.
What is EVER VIGOROUS's MMSI?
EVER VIGOROUS's MMSI is 636023607. Call sign 5LON4. IMO 9294288.
How big is EVER VIGOROUS?
EVER VIGOROUS is about 170 m long, 26 m on the beam, drawing 7 m.
Is EVER VIGOROUS on the Master's Mate Safety Initiative Network?
Not yet. If EVER VIGOROUS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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