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
John H. Glenn Jr.
MMSI 367681370 · Call sign WDI2753
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
19.7 m
Beam
6.4 m
Draft
2.2 m
Call sign
WDI2753
Official No.
289631
AIS reports
1
John H. Glenn Jr. is a working ship hailing from the United States, 19.7 metres from stem to stern. She carries a beam of 6.4 m and a 2.2-metre draft. She's listed under MMSI 367681370, call sign WDI2753. Add John H. Glenn Jr. to the Master's Mate Safety Initiative Network and share the water with a fleet that's paying attention — free.
Free forever · No credit card · for commercial operators
Eyes on John H. Glenn Jr., 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 John H. Glenn Jr. 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 John H. Glenn Jr. 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 John H. Glenn Jr. and switch it all on
Free to join · nothing to install to start · cancel anytime
About John H. Glenn Jr.
What kind of vessel is John H. Glenn Jr.?
John H. Glenn Jr. is a Industrial Vessel flagged to United States of America.
What is John H. Glenn Jr.'s MMSI?
John H. Glenn Jr.'s MMSI is 367681370. Call sign WDI2753.
How big is John H. Glenn Jr.?
John H. Glenn Jr. is about 19.7 m long, 6.4 m on the beam, drawing 2.2 m.
Is John H. Glenn Jr. on the Master's Mate Safety Initiative Network?
Not yet. If John H. Glenn Jr. is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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