MMSI 366990320 · Call sign WDC2265
Not yet on Master's MateDelta Doe flies the American flag — a 20.4-metre harbour workboat. Below, she has a beam measuring 7.2 metres and a draft of 2.7 m. On AIS she appears as MMSI 366990320, call sign WDC2265, IMO 8861620. Add Delta Doe to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put Delta Doe on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.