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.
Recreational
MV THUNDERBOLT
MMSI 368421560 · Call sign WDQ3989
Not yet on Master's MateType
Recreational
Flag
USALength
12.2 m
Beam
4.4 m
Draft
2.1 m
Call sign
WDQ3989
Official No.
1243962
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
48
Registered in the United States, MV THUNDERBOLT is a 12.2-metre leisure boat. She's built with a 4.4-metre beam and a 2.1 m draft. Her papers read MMSI 368421560, call sign WDQ3989. Bring MV THUNDERBOLT aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for recreational captains
Keep MV THUNDERBOLT 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
Last known position · Jun 3, 2026
Position
39.5716° N, 75.5902° W
Cruising off the U.S. East Coast? 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 MV THUNDERBOLT 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 MV THUNDERBOLT and switch it all on
Free to join · nothing to install to start · cancel anytime
About MV THUNDERBOLT
What kind of vessel is MV THUNDERBOLT?
MV THUNDERBOLT is a Recreational flagged to United States of America.
Where was MV THUNDERBOLT last seen?
MV THUNDERBOLT was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is MV THUNDERBOLT's MMSI?
MV THUNDERBOLT's MMSI is 368421560. Call sign WDQ3989.
How big is MV THUNDERBOLT?
MV THUNDERBOLT is about 12.2 m long, 4.4 m on the beam, drawing 2.1 m.
Is MV THUNDERBOLT on the Master's Mate Safety Initiative Network?
Not yet. If MV THUNDERBOLT is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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