MMSI 366972410 · Call sign WCP9623
Not yet on Master's MateD. W. GILLIS, a workboat sailing under the American flag, measures 12.7 metres on deck. D. W. GILLIS has a 5.5-metre beam and a 2 m draft. Officially she's MMSI 366972410, call sign WCP9623. Join D. W. GILLIS to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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 D. W. GILLIS on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.