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.
Pleasure Craft
BACK 9 AND A HALF
MMSI 319310400 · Call sign ZGUJ9
Not yet on Master's MateType
Pleasure Craft
Flag
CYMLength
36 m
Beam
6 m
Draft
1.5 m
Call sign
ZGUJ9
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
On the Cayman Islands registry, BACK 9 AND A HALF is a 36-metre leisure boat. BACK 9 AND A HALF has a beam of 6 m and a 1.5-metre draft. On AIS she shows as MMSI 319310400, call sign ZGUJ9. Claim BACK 9 AND A HALF free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for recreational captains
Keep BACK 9 AND A HALF looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 04:01 UTC
Position
26.0860° N, 80.1859° W
Status
Moored
Speed
0.0 kn
Course
15°
Destination
WESTPALMBEACH,FL,USA
ETA
03-22 11:30 UTC
Wherever BACK 9 AND A HALF 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put BACK 9 AND A HALF on the map. It hands you the full bridge:
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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim BACK 9 AND A HALF and switch it all on
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About BACK 9 AND A HALF
What kind of vessel is BACK 9 AND A HALF?
BACK 9 AND A HALF is a Pleasure Craft flagged to Cayman Islands.
Where was BACK 9 AND A HALF last seen?
BACK 9 AND A HALF was last reported in around 26°N 80°W in Jun 2026 on public AIS.
What is BACK 9 AND A HALF's MMSI?
BACK 9 AND A HALF's MMSI is 319310400. Call sign ZGUJ9.
How big is BACK 9 AND A HALF?
BACK 9 AND A HALF is about 36 m long, 6 m on the beam, drawing 1.5 m.
Is BACK 9 AND A HALF on the Master's Mate Safety Initiative Network?
Not yet. If BACK 9 AND A HALF is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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