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.
Freight Ship
Maersk Hartford
MMSI 338403000 · Call sign WMHA
Not yet on Master's MateType
Freight Ship
Flag
USALength
299.4 m
Beam
40 m
Draft
20.3 m
Call sign
WMHA
IMO
9333008
Official No.
1077000
AIS reports
4
An American general cargo ship, Maersk Hartford measures 299.4 metres. Below, she has a 40-metre beam and a draft measuring 20.3 metres. She broadcasts as MMSI 338403000, call sign WMHA, IMO 9333008. Maersk Hartford is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for commercial operators
Eyes on Maersk Hartford, 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
Wherever Maersk Hartford 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Maersk Hartford 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 Maersk Hartford and switch it all on
Free to join · nothing to install to start · cancel anytime
About Maersk Hartford
What kind of vessel is Maersk Hartford?
Maersk Hartford is a Freight Ship flagged to United States of America.
What is Maersk Hartford's MMSI?
Maersk Hartford's MMSI is 338403000. Call sign WMHA. IMO 9333008.
How big is Maersk Hartford?
Maersk Hartford is about 299.4 m long, 40 m on the beam, drawing 20.3 m.
Is Maersk Hartford on the Master's Mate Safety Initiative Network?
Not yet. If Maersk Hartford is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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