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.

Recreational

ONLY GO ROUND ONCE

U.S. Official No. 1140771

Not yet on Master's Mate

Type

Recreational

Flag

USA

Length

10.4 m

Beam

3.4 m

Draft

1.8 m

First reported

Jun 2026

AIS reports

ONLY GO ROUND ONCE is a cruising boat hailing from the United States, 10.4 metres overall. She's built with a 3.4 m beam and a 1.8-metre draft. She's listed under U.S. official number 1140771. Join ONLY GO ROUND ONCE to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for recreational captains

Keep ONLY GO ROUND ONCE looked after — even when you’re not aboard.

Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.

Look after her — claim free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever ONLY GO ROUND ONCE 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 recreational captains

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put ONLY GO ROUND ONCE on the map. It hands you the full bridge:

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.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim ONLY GO ROUND ONCE and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About ONLY GO ROUND ONCE

What kind of vessel is ONLY GO ROUND ONCE?

ONLY GO ROUND ONCE is a Recreational flagged to United States of America.

What is ONLY GO ROUND ONCE's U.S. Official No.?

ONLY GO ROUND ONCE's U.S. Official No. is 1140771.

How big is ONLY GO ROUND ONCE?

ONLY GO ROUND ONCE is about 10.4 m long, 3.4 m on the beam, drawing 1.8 m.

Is ONLY GO ROUND ONCE on the Master's Mate Safety Initiative Network?

Not yet. If ONLY GO ROUND ONCE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).