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United States flag

CHIEF BILL BROWN — Tug · MMSI 367702110

USPushing Ahead - Towing
World map showing the last known position of CHIEF BILL BROWN at 38° 26.923' N, 85° 33.995' W
NSEW
Current PositionLast report

CHIEF BILL BROWN was last reported under way in the North Pacific Ocean, at 38.4487° N, 85.5666° W, on 8 Sep 2026, 09:43 UTC. It was sailing from LOUISVILLE to ROCKPORT with an ETA of 7 Sep 2026, 10:16 UTC.

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Updated 10 hours ago using terrestrial data
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Pushing Ahead - Towing
Current Navigational Status
4.1 kn
Speed
79.0°
/ 77°
Course / Heading
3.7 m
Static Draught
3.7 m
Current Draught

Voyage Tracker

ATD
07:57 UTCSep 8, 2026
ETA
10:16 UTCSep 7, 2026
CHIEF BILL BROWN

CHIEF BILL BROWN

Identity

Tug
Type
United States flagUS
Flag
N/A
IMO Number
367702110
MMSI
WDI4798
Call Sign

Specifications

345 m × 33 m
Length × Breadth
N/A
Year Built
N/A
Deadweight
N/A
Gross Tonnage
N/A
Engine Power
N/A
Builder
N/A
Class Society
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Dive into the fleet, port, and flag state that CHIEF BILL BROWN is part of.

Flag State
All US-flagged vessels
Browse every ship currently registered under the US flag, with live AIS positions.
Vessel Type
Browse all Tugs
See the global fleet of tugs tracked on MarineRadar with live AIS data.
Departure Port
Port of LOUISVILLE
Port traffic, arrivals and live vessel positions for LOUISVILLE (USLUI).
Destination Port
Port of ROCKPORT
Arrivals, berth specifications, and live vessel traffic for ROCKPORT (USRQP).

About CHIEF BILL BROWN

Identity · Ownership · Class · Route

CHIEF BILL BROWN — Tug

CHIEF BILL BROWN is a tug registered under the United States of America flag.

CHIEF BILL BROWN route and voyage history

CHIEF BILL BROWN is currently on a voyage from LOUISVILLE to ROCKPORT with an estimated arrival on 2026-09-07T10:16:00Z. The live route and current course of CHIEF BILL BROWN are shown on the bridge map above, updated whenever the vessel is in range of a coastal AIS receiver or a satellite pass.

Vessel class and identifiers

Vessels in the same class as CHIEF BILL BROWN can be seen in the Similar Vessels section above or in the full tug fleet at /vessel-type/tug-pilot-vessel.

Frequently Asked Questions

Where is CHIEF BILL BROWN right now?+
CHIEF BILL BROWN was last reported under way in the North Pacific Ocean, on 8 Sep 2026, 09:43 UTC. It was sailing from LOUISVILLE to ROCKPORT with an ETA of 7 Sep 2026, 10:16 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.
What are the identifiers for CHIEF BILL BROWN?+
CHIEF BILL BROWN broadcasts MMSI 367702110, with call sign WDI4798. The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.
What type of ship is CHIEF BILL BROWN?+
CHIEF BILL BROWN is classified as a tug vessel registered under the US flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full tug fleet at /vessel-type/tug-pilot-vessel and full US flag list at /flag/us.
How can I see the live position of CHIEF BILL BROWN?+
MarineRadar shows the latest AIS broadcast from CHIEF BILL BROWN above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.
How often is CHIEF BILL BROWN's position updated?+
AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.
What class is CHIEF BILL BROWN?+
As a tug, CHIEF BILL BROWN sits in the same design class as the other tugs listed in the Similar Vessels section of the vessel page, or in the full tug directory at /vessel-type/tug-pilot-vessel.

CHIEF BILL BROWN — Key Facts

MMSI
367702110
Call sign
WDI4798
Vessel type
Tug
Flag state
US
Navigation status
Pushing Ahead - Towing
Current speed
4.1 knots
Course over ground
79.0°
Heading
77°
Last known position
38.4487°, -85.5666°
Destination
ROCKPORT
ETA
2026-09-07T10:16:00Z
Departure port
LOUISVILLE
Actual time of departure
2026-09-08T07:57:00Z
Current draught
3.7 m
Maximum static draught
3.7 m
Dead weight
0 t
AIS last updated
2026-09-08T09:43:23Z