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.
Research Vessel
TT R/V Shearwater
MMSI 368115060 · Call sign WDL2755
Not yet on Master's MateType
Research Vessel
Flag
USALength
22 m
Beam
8.2 m
Draft
2.3 m
Call sign
WDL2755
Official No.
1288958
AIS reports
1
On the American registry, TT R/V Shearwater is a 22-metre boat. TT R/V Shearwater has a 8.2-metre beam and a 2.3 m draft. On the registers she's MMSI 368115060, call sign WDL2755. Claim TT R/V Shearwater free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card
Is TT R/V Shearwater your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever TT R/V Shearwater 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put TT R/V Shearwater 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.
Claim TT R/V Shearwater and switch it all on
Free to join · nothing to install to start · cancel anytime
About TT R/V Shearwater
What kind of vessel is TT R/V Shearwater?
TT R/V Shearwater is a Research Vessel flagged to United States of America.
What is TT R/V Shearwater's MMSI?
TT R/V Shearwater's MMSI is 368115060. Call sign WDL2755.
How big is TT R/V Shearwater?
TT R/V Shearwater is about 22 m long, 8.2 m on the beam, drawing 2.3 m.
Is TT R/V Shearwater on the Master's Mate Safety Initiative Network?
Not yet. If TT R/V Shearwater 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.