ROSSCO (IMO 8108432)
ROSSCO is an Offshore Tug/Supply Ship built in 1981 and flying the New Zealand flag, placing it in its 45th year of service. The vessel reports a deadweight tonnage of 164 metric tonnes and a gross tonnage of 148. Given its small displacement and type, it is configured for specialized offshore support tasks. There is no classification society or IACS membership data available for this vessel. No recent geographic observation areas are recorded in the current dataset. The vessel has been registered under two former names and has operated under two different flag states throughout its history. No port state control (PSC) inspections were recorded in the last 36 months; 2 inspections are on file since 2016, the most recent on 28 January 2016.
- Type: Offshore Tug/Supply Ship
- Flag: New Zealand
- Year built: 1981
- MMSI: 512005362
- Call sign: ZMF7771
- Gross tonnage: 148
- Deadweight: 164 t
- Port State Control (PSC) inspections: 2 since 2016
- PSC detentions in the last 36 months: 0
- Last PSC inspection: 28/01/2016
- Last AIS position: 41°17.1′S · 174°0.4′E · Speed 0.0 kn · received 13 October 2026 at 08:37 UTC
- Destination: Picton (AU PIC)
Frequently asked questions
What is the vessel type of ROSSCO?
ROSSCO is classified as an Offshore Tug/Supply Ship. It was built in 1981 and is currently in its 45th year of service.
What are the tonnage specifications for ROSSCO?
The vessel has a deadweight tonnage of 164 metric tonnes. Its gross tonnage is recorded at 148.
How many port-state inspections has ROSSCO undergone?
No port state control (PSC) inspections were recorded in the last 36 months; 2 inspections are on file since 2016, the most recent on 28 January 2016.
Has the vessel changed names or flags before?
Yes, the vessel has a history of name and flag changes. It has operated under 2 former names and 2 former flag states.
How many times has the ownership of ROSSCO changed?
The vessel has undergone 5 ownership changes during its operational history. This data is part of its 45-year service record.
Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.