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.
Passenger
CITY GAMMA
MMSI 235054917 · Call sign MZGF7
Not yet on Master's MateType
Passenger
Flag
GBRLength
31 m
Beam
10 m
Call sign
MZGF7
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
64
CITY GAMMA is a British passenger craft, spanning 31 metres. She has a beam measuring 10 metres. She broadcasts as MMSI 235054917, call sign MZGF7. CITY GAMMA is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard CITY GAMMA safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 19:36 UTC
Position
51.5013° N, 0.0623° W
Status
Under way (engine)
Speed
0.2 kn
Course
360°
Sailing the North Sea? 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put CITY GAMMA on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
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 CITY GAMMA and switch it all on
Free to join · nothing to install to start · cancel anytime
About CITY GAMMA
What kind of vessel is CITY GAMMA?
CITY GAMMA is a Passenger flagged to United Kingdom.
Where was CITY GAMMA last seen?
CITY GAMMA was last reported in the North Sea in Jun 2026 on public AIS.
What is CITY GAMMA's MMSI?
CITY GAMMA's MMSI is 235054917. Call sign MZGF7.
How big is CITY GAMMA?
CITY GAMMA is about 31 m long, 10 m on the beam.
Is CITY GAMMA on the Master's Mate Safety Initiative Network?
Not yet. If CITY GAMMA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.