Question 1

Where is SIR HENRY right now?

Accepted Answer

SIR HENRY has not broadcast an AIS position for 197 days. The most recent broadcast placed it in the South Pacific Ocean, on 10 Mar 2026, 13:05 UTC. It was sailing from BUKA to RABAUL. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.

Question 2

What are the identifiers for SIR HENRY?

Accepted Answer

SIR HENRY broadcasts MMSI 553112039, with call sign P2V5844. 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.

Question 3

What type of ship is SIR HENRY?

Accepted Answer

SIR HENRY is classified as a passenger vessel registered under the PG flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full passenger fleet at /vessel-type/passenger and full PG flag list at /flag/pg.

Question 4

How can I see the live position of SIR HENRY?

Accepted Answer

MarineRadar shows the latest AIS broadcast from SIR HENRY 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.

Question 5

How often is SIR HENRY's position updated?

Accepted Answer

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.

Question 6

What class is SIR HENRY?

Accepted Answer

As a passenger, SIR HENRY sits in the same design class as the other passengers listed in the Similar Vessels section of the vessel page, or in the full passenger directory at /vessel-type/passenger.

SIR HENRY — Passenger · MMSI 553112039

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