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.
Port Tender
DEVELOPER
MMSI 219513000 · Call sign OWPI2
Not yet on Master's MateType
Port Tender
Flag
DNKLength
27 m
Beam
9 m
Draft
2.3 m
Call sign
OWPI2
IMO
9717541
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
34
DEVELOPER, a workboat flagged in Denmark, measures 27 metres on deck. She's built with a beam measuring 9 metres and a 2.3 m draft. She broadcasts as MMSI 219513000, call sign OWPI2, IMO 9717541. DEVELOPER can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for working boats
Built for boats that work — like DEVELOPER.
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
Last known position · Jun 3, 2026
Position
54.1459° N, 3.7155° W
Working the North Sea? You're never out there alone.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put DEVELOPER 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 DEVELOPER and switch it all on
Free to join · nothing to install to start · cancel anytime
About DEVELOPER
What kind of vessel is DEVELOPER?
DEVELOPER is a Port Tender flagged to Denmark.
Where was DEVELOPER last seen?
DEVELOPER was last reported in the North Sea in Jun 2026 on public AIS.
What is DEVELOPER's MMSI?
DEVELOPER's MMSI is 219513000. Call sign OWPI2. IMO 9717541.
How big is DEVELOPER?
DEVELOPER is about 27 m long, 9 m on the beam, drawing 2.3 m.
Is DEVELOPER on the Master's Mate Safety Initiative Network?
Not yet. If DEVELOPER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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