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
DERRICK 71
MMSI 368047850 · Call sign WDK3703
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
45.7 m
Beam
14.6 m
Draft
2.4 m
Call sign
WDK3703
Official No.
1283452
AIS reports
1
DERRICK 71 is an American working ship — 45.7 metres overall. Her hull carries a 14.6-metre beam and a draft of 2.4 m. Officially she's MMSI 368047850, call sign WDK3703. Give DERRICK 71 the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for commercial operators
Eyes on DERRICK 71, 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 DERRICK 71 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 DERRICK 71 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 DERRICK 71 and switch it all on
Free to join · nothing to install to start · cancel anytime
About DERRICK 71
What kind of vessel is DERRICK 71?
DERRICK 71 is a Industrial Vessel flagged to United States of America.
What is DERRICK 71's MMSI?
DERRICK 71's MMSI is 368047850. Call sign WDK3703.
How big is DERRICK 71?
DERRICK 71 is about 45.7 m long, 14.6 m on the beam, drawing 2.4 m.
Is DERRICK 71 on the Master's Mate Safety Initiative Network?
Not yet. If DERRICK 71 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.