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.
Tug
FUTABA MARU
MMSI 431027442 · Call sign JD5523
Not yet on Master's MateType
Tug
Flag
JPNLength
32 m
Beam
11 m
Draft
4.5 m
Call sign
JD5523
IMO
1061257
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
28
FUTABA MARU, a Japanese harbour tug, measures 32 metres on deck. Her hull carries 11 metres in the beam and a draft of 4.5 m. Look for MMSI 431027442, call sign JD5523, IMO 1061257. FUTABA MARU belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Built for boats that work — like FUTABA MARU.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Last known position · Jun 3, 2026
Position
36.9309° N, 140.8884° E
Working the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put FUTABA MARU 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 FUTABA MARU and switch it all on
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About FUTABA MARU
What kind of vessel is FUTABA MARU?
FUTABA MARU is a Tug flagged to Japan.
Where was FUTABA MARU last seen?
FUTABA MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is FUTABA MARU's MMSI?
FUTABA MARU's MMSI is 431027442. Call sign JD5523. IMO 1061257.
How big is FUTABA MARU?
FUTABA MARU is about 32 m long, 11 m on the beam, drawing 4.5 m.
Is FUTABA MARU on the Master's Mate Safety Initiative Network?
Not yet. If FUTABA MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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