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.

Research Vessel

JELLY ROLL

U.S. Official No. 1158551

Not yet on Master's Mate

Type

Research Vessel

Flag

USA

Length

11.1 m

Beam

4 m

Draft

1.8 m

Hull ID

RGMLB127E304

First reported

Jun 2026

AIS reports

JELLY ROLL, a boat sailing under the American flag, measures 11.1 metres on deck. She's built with a beam measuring 4 metres and a 1.8 m draft. Look for U.S. official number 1158551. Bring JELLY ROLL aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

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Is JELLY ROLL your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

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Wherever JELLY ROLL roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

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

Joining the Safety Initiative Network doesn't just put JELLY ROLL 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.

Worldwide Charts

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

Live AIS & Traffic

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

Weather & Routing

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

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

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.

Hail Any Captain

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

Claim JELLY ROLL and switch it all on

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About JELLY ROLL

What kind of vessel is JELLY ROLL?

JELLY ROLL is a Research Vessel flagged to United States of America.

What is JELLY ROLL's U.S. Official No.?

JELLY ROLL's U.S. Official No. is 1158551.

How big is JELLY ROLL?

JELLY ROLL is about 11.1 m long, 4 m on the beam, drawing 1.8 m.

Is JELLY ROLL on the Master's Mate Safety Initiative Network?

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