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 (Inspected)
AJ's Constant Threat
MMSI 366943140 · Call sign WDB7500
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
15.8 m
Beam
5.4 m
Draft
2.4 m
Call sign
WDB7500
Official No.
946080
AIS reports
1
AJ's Constant Threat is an American passenger boat, measuring 15.8 metres. AJ's Constant Threat has a beam measuring 5.4 metres and a 2.4 m draft. On AIS she appears as MMSI 366943140, call sign WDB7500. AJ's Constant Threat belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard AJ's Constant Threat 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
Wherever AJ's Constant Threat 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put AJ's Constant Threat 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 AJ's Constant Threat and switch it all on
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About AJ's Constant Threat
What kind of vessel is AJ's Constant Threat?
AJ's Constant Threat is a Passenger (Inspected) flagged to United States of America.
What is AJ's Constant Threat's MMSI?
AJ's Constant Threat's MMSI is 366943140. Call sign WDB7500.
How big is AJ's Constant Threat?
AJ's Constant Threat is about 15.8 m long, 5.4 m on the beam, drawing 2.4 m.
Is AJ's Constant Threat on the Master's Mate Safety Initiative Network?
Not yet. If AJ's Constant Threat is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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