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.
Passenger (Inspected)
Sandpiper
MMSI 366965910 · Call sign WDB8885
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
19.8 m
Beam
5.8 m
Draft
2.2 m
Call sign
WDB8885
Official No.
1159884
AIS reports
1
On the American registry, Sandpiper is a 19.8-metre excursion vessel. Sandpiper has a 5.8-metre beam and a 2.2-metre draft. On the registers she's MMSI 366965910, call sign WDB8885. The Master's Mate Safety Initiative Network welcomes Sandpiper — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Sandpiper safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Sandpiper 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Sandpiper on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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 Sandpiper and switch it all on
Free to join · nothing to install to start · cancel anytime
About Sandpiper
What kind of vessel is Sandpiper?
Sandpiper is a Passenger (Inspected) flagged to United States of America.
What is Sandpiper's MMSI?
Sandpiper's MMSI is 366965910. Call sign WDB8885.
How big is Sandpiper?
Sandpiper is about 19.8 m long, 5.8 m on the beam, drawing 2.2 m.
Is Sandpiper on the Master's Mate Safety Initiative Network?
Not yet. If Sandpiper 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.