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.
Industrial Vessel
OPTI-EX
U.S. Official No. 1233712
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
76.8 m
Beam
76.8 m
Draft
42 m
First reported
Jun 2026
AIS reports
1
OPTI-EX, a working ship flying the flag of the United States, measures 76.8 metres on deck. Her hull carries a draft measuring 42 metres. Find her under U.S. official number 1233712. Join OPTI-EX to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on OPTI-EX, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever OPTI-EX 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put OPTI-EX on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 OPTI-EX and switch it all on
Free to join · nothing to install to start · cancel anytime
About OPTI-EX
What kind of vessel is OPTI-EX?
OPTI-EX is a Industrial Vessel flagged to United States of America.
What is OPTI-EX's U.S. Official No.?
OPTI-EX's U.S. Official No. is 1233712.
How big is OPTI-EX?
OPTI-EX is about 76.8 m long, 76.8 m on the beam, drawing 42 m.
Is OPTI-EX on the Master's Mate Safety Initiative Network?
Not yet. If OPTI-EX 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.