MMSI 244690841 · Call sign PD9333
Not yet on Master's MateRegistered in the Netherlands, GRUNO is an 18-metre harbour tug. She has a 5-metre beam and a draft of 1.6 m. On AIS she shows as MMSI 244690841, call sign PD9333. GRUNO can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
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 GRUNO on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.