Work Vessel 🇧🇷 BrazilActive

MESTRE DOS MARES

Compare

IMO: 9329942
MMSI: 710006928
Call Sign: PU8420

Technical Specifications

Key Figures

Gross Tonnage

5,448GT

Deadweight

4,380DWT

Length Overall

93.45m

Beam

22.06m

Draught

5.5m

Year Built

2006

Live Tracking

Current Position

Live AIS · 52 min ago

Track · last 8 d

Position

22.894°S · 43.205°W

Speed

2.8 kn

Course

255°

Status

At anchor

Destination BACIA DE SANTOSETA Aug 12, 07:30 AMLaden · 6.0 m

Where it waited most

Most time stopped at Rio De Janeiro — 4 d across 10 stays.

1
Rio De Janeiro4 d · 10×
2
Gegua Oil Terminal3 d · 4×

Derived from the AIS track — runs of near-zero speed (anchored, moored or drifting) snapped to the nearest port. Builds up as we observe the vessel.

Intelligence

Risk & Sustainability

Risk scoreMedium

77/ 100

Safety68

Compliance95

Environment68

Recent port calls

Rio De Janeiro
Sep 1, 2026
In port
Gegua Oil Terminal
Aug 31, 2026
1.0 d
Rio De Janeiro
Aug 24, 2026
0.8 d
Gegua Oil Terminal
Aug 4, 2026
1.6 d
Gegua Oil Terminal
Aug 2, 2026
1.1 d

AIS-derived from our live feed.

Compliance

Safety Record

Port-State-Control detentions2

Nea Karvali3 deficiencies
Jun 2, 2023Paris MoU (THETIS)2 grounds for detention
Non-payment of wages; Provisions quantity
Nea Karvali8 deficiencies
Mar 3, 2023Paris MoU (THETIS)8 grounds for detention
Endorsement by flagstate; Non-payment of wages; Maximum hours of work or minimum hours of rest; Facilities for reception of marine safety inform.; Medical Equipment, medical chest, medical guide; ISM; Abandon ship drills; Lights, shapes, sound-signals

Port-State-Control detentions.

Operational Status

Activity

Under wayFix 2 days ago

Making way at sea speed on its latest broadcast.

Speed

8.2 kn

Nav status

Under way using engine

Last broadcast

2 days ago

Hull age

20 yr

Read from the single most-recent AIS broadcast we hold for this hull — we keep no position history, so this is a point-in-time posture, not a dwell inference. Derived in-house from our own AIS feed; weight it by the broadcast age above.

Port calls

7 recent · AIS-detected

Arrivals, time in port and the load/discharge inferred from the draught change — detected from AIS track history. An open call means the vessel is still in port (no departure observed yet).

Rio De Janeiro
no cargo change
→ · 21 h in port· draught 6.0→6.0 m
Rio De Janeiro
no cargo change
→ · 6 h in port· draught 6.0→6.0 m
Rio De Janeiro
no cargo change
→ · 19 h in port· draught 6.0→6.0 m
Rio De Janeiro
no cargo change
→ · 16 h in port· draught 6.0→6.0 m
Rio De Janeiro
no cargo change
→ · 19 h in port· draught 6.0→6.0 m
Rio De Janeiro
no cargo change
→ · 26 h in port· draught 6.0→6.0 m
Rio De Janeiro
no cargo change
→ · 19 h in port· draught 6.0→6.0 m

Method: each call is a run of fixes inside a port’s geofence confirmed by a stop (or an AIS gap); load/discharge is the sign of the draught delta over the call. Indicative — arrivals before our AIS history began read from the first observation.

Where it waits

1 port · 5.2 days total

Time-in-port summed by port from the AIS-detected port-call history — the ports this vessel has spent the most time at, longest first.

Rio De Janeiro· Brazil
5.2 days
7 calls · 18 h avg

Based on 7 completed calls observed since — open calls (no departure yet) are excluded. The distribution sharpens as AIS history accrues.

Composite Risk

Risk Score

55/100

Elevated risk60% component coverage

Multiple adverse factors, or a hard ship-specific signal, lift this hull above the fleet norm.

PSC detentions70

Sanctions exposureno data

AIS-gap & behaviourno data

Hull age60

Flag register0

A coverage-weighted blend of the 3 components we could read for this hull — the weights renormalise over only the components present, so a thin read is never inflated and a hull is never credited a “safe 0” for a signal it has no row for. Higher means riskier. Derived in-house from government-open port-State-control, flag, sanctions and our own vessel data; weight it by the coverage above.

Estimated

Capacity & Classification

Cargo capacity at draughtHigh confidence

~4,380t at summer draught

Other · summer draught 5.5 m · 13.2 t per cm immersion

Estimated intake by draught

3.85 m~2,208 t

4.13 m~2,570 t

4.4 m~2,932 t

4.68 m~3,294 t

4.95 m~3,656 t

5.23 m~4,018 t

5.5 m~4,380 t

Estimate only — modelled from deadweight (hull geometry) using a first-principles hydrostatic model, not measured hydrostatic tables. The design draught it is anchored to is unreliable across the fleet.

Full compliance dossier

Commercial