TheMaritime.net
Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%
Oil Products Tanker🇹🇭 ThailandActive

BIG SEA 21

IMO
9119024
MMSI
567001950
Call Sign
HSB5603

Technical Specifications

Key Figures

Gross Tonnage
749GT
Deadweight
1,941DWT
Length Overall
68.4m
Beam
12m
Year Built
1995

Live Tracking

Current Position

Live AIS · 14 d ago
Position
13.684°N · 100.509°E
Speed
6.7 kn
Course
286°
Status
Under way using engine

Intelligence

Risk & Sustainability

Risk scoreHigh
58/ 100
Safety38
Compliance95
Environment38
Carbon intensity · estimatedE

This ship has no verified emissions report. We estimate a band E from its segment, size and age (100% confidence).

Estimate, not a reported figure. Within one band 95% of the time on reported peers.

Operational Status

Activity

Under wayLow confidenceFix 13 days ago

Making way at sea speed on its latest broadcast.

Speed
6.7 kn
Nav status
Under way using engine
Last broadcast
13 days ago
Hull age
31 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.

Composite Risk

Risk Score

74/100
Elevated risk60% component coverage

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

PSC detentionsno data
Sanctions exposureno data
Dark-fleet signal80
Hull age100
Flag register25

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 draughtMedium confidence
~1,941t at summer draught

Tanker · summer draught 4.18 m · 6.3 t per cm immersion

Estimated intake by draught
2.93 m~1,155 t
3.14 m~1,286 t
3.35 m~1,417 t
3.56 m~1,548 t
3.76 m~1,679 t
3.97 m~1,810 t
4.18 m~1,941 t
Design draught looks implausible for this class and size — the figures above are anchored to it, so treat them with extra caution.

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

Type classificationConflict
Declared
Tanker
Inferred from size
Tanker

density DWT/GT=2.59 is physically implausible for any cargo ship (declared tanker) — likely a tonnage data error

DWT/GT 2.59Beam/LOA 0.175Declared type: Oil Products Tanker

The declared type conflicts with the class implied by the vessel’s size signals — a possible mis-declaration. Inferred via our shared size-based classifier.

Transparency

Risk signals

Behavioural flags raised against this vessel — each shown with the raw evidence behind it. Derived in-house from data we are entitled to publish; informational, not a determination of wrongdoing.

Type vs. size mismatchhighstrength 0.95

Declared type contradicts the size-implied class

Audit Confidence
0.95
Beam Loa Ratio
0.175
Deadweight
1,941
Declared Class
TANKER
Declared Type
Oil Products Tanker
Dwt Gt Ratio
2.592
Gross Tonnage
749
Reason
density DWT/GT=2.59 is physically implausible for any cargo ship (declared tanker) — likely a tonnage data error
Size Implied Class
TANKER

Method: declared type vs size-implied class (DWT/GT density + beam/LOA fullness). Source: vessel_type_audit (sibling P3#3 job; shared coarse_class classifier).

Signals are a current-state view: a flag clears once the vessel stops tripping its detector. These are screening indicators, not a substitute for your own due diligence.

Commercial

Voyage Estimate

From 1,941 DWT · ~9 t/day · bunker @ live VLSFO.

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