Replenishment Vessel🇺🇸 USAActive

USNS BIG HORN

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IMO: 8812162
MMSI: 368889000
Call Sign: NBIG

Technical Specifications

Key Figures

Gross Tonnage

25,742GT

Deadweight

27,955DWT

Length Overall

206.5m

Beam

29.72m

Year Built

1992

Intelligence

Risk & Sustainability

Risk scoreHigh

58/ 100

Safety38

Compliance95

Environment38

Composite Risk

Risk Score

70/100

Elevated riskLow confidence40% 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 signalno data

Hull age100

Flag register25

A coverage-weighted blend of the 2 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. This headline is flagged low-confidence (a thin or structural-only read) and should not be treated as a verdict. 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

~27,955t at summer draught

Other · summer draught 9.62 m · 45.2 t per cm immersion

Estimated intake by draught

6.73 m~14,922 t

7.21 m~17,094 t

7.69 m~19,266 t

8.17 m~21,438 t

8.65 m~23,611 t

9.14 m~25,783 t

9.62 m~27,955 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.

Commercial

Voyage Estimate

Load port

Discharge port

CargotFreight$/tFrom 27,955 DWT · ~24 t/day · bunker @ live VLSFO.

Overview

About This Vessel

USNS Big Horn (T-AO-198) is a Henry J. Kaiser-class replenishment oiler of the United States Navy. Big Horn was laid down on 9 October 1989 and launched on 2 February 1991. The ship entered service with Military Sealift Command on 21 May 1992 as part of the United States Atlantic Fleet.