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
one mustard seed
MMSI 367072850 · Call sign WDC7533
Not yet on Master's MateType
Recreational
Flag
USALength
10.2 m
Beam
4.3 m
Draft
1.5 m
Call sign
WDC7533
Official No.
1166057
Hull ID
PCI00883L405
AIS reports
1
one mustard seed, a cruising boat on the the United States registry, measures 10.2 metres on deck. She carries 4.3 metres in the beam and a 1.5-metre draft. Find her under MMSI 367072850, call sign WDC7533. Bring one mustard seed 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 one mustard seed 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
Wherever one mustard seed 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put one mustard seed 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 one mustard seed and switch it all on
Free to join · nothing to install to start · cancel anytime
About one mustard seed
What kind of vessel is one mustard seed?
one mustard seed is a Recreational flagged to United States of America.
What is one mustard seed's MMSI?
one mustard seed's MMSI is 367072850. Call sign WDC7533.
How big is one mustard seed?
one mustard seed is about 10.2 m long, 4.3 m on the beam, drawing 1.5 m.
Is one mustard seed on the Master's Mate Safety Initiative Network?
Not yet. If one mustard seed 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.