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.
Unclassified
WILLIAM D JEFFREY
U.S. Official No. 950546
Not yet on Master's MateType
Unclassified
Flag
USALength
59.4 m
Beam
10.7 m
Draft
3 m
First reported
Jun 2026
AIS reports
1
On the American registry, WILLIAM D JEFFREY is a 59.4-metre vessel. She's built with a 10.7 m beam and a 3 m draft. Look for U.S. official number 950546. WILLIAM D JEFFREY belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Joining the Safety Initiative Network doesn't just put WILLIAM D JEFFREY 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.
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About WILLIAM D JEFFREY
What kind of vessel is WILLIAM D JEFFREY?
WILLIAM D JEFFREY is a Unclassified flagged to United States of America.
What is WILLIAM D JEFFREY's U.S. Official No.?
WILLIAM D JEFFREY's U.S. Official No. is 950546.
How big is WILLIAM D JEFFREY?
WILLIAM D JEFFREY is about 59.4 m long, 10.7 m on the beam, drawing 3 m.
Is WILLIAM D JEFFREY on the Master's Mate Safety Initiative Network?
Not yet. If WILLIAM D JEFFREY is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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