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.
Public Vessel, Unclassified
SS Altair
MMSI 368988000 · Call sign NRZA
Not yet on Master's MateType
Public Vessel, Unclassified
Flag
USALength
288.4 m
Beam
32.2 m
Draft
18 m
Call sign
NRZA
IMO
7315571
Official No.
550722
AIS reports
2
An American craft, SS Altair measures 288.4 metres. Below, she has a beam measuring 32.2 metres and a draft of 18 m. Officially she's MMSI 368988000, call sign NRZA, IMO 7315571. Claim SS Altair free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card
Is SS Altair your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever SS Altair 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SS Altair 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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SS Altair and switch it all on
Free to join · nothing to install to start · cancel anytime
About SS Altair
What kind of vessel is SS Altair?
SS Altair is a Public Vessel, Unclassified flagged to United States of America.
What is SS Altair's MMSI?
SS Altair's MMSI is 368988000. Call sign NRZA. IMO 7315571.
How big is SS Altair?
SS Altair is about 288.4 m long, 32.2 m on the beam, drawing 18 m.
Is SS Altair on the Master's Mate Safety Initiative Network?
Not yet. If SS Altair is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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