WeaponSpecs
Missile South Korea flagSouth Korea

LIG Nex1

K745A1 Red Shark

South Korean vertically-launched anti-submarine rocket, functionally equivalent to the US RUM-139 VL-ASROC: a rocket motor with midcourse and terminal guidance carries a K745 Blue Shark torpedo payload to a designated target area, then parachute-releases it to conduct the actual acoustic homing attack. Fired from the Korean Vertical Launching System (K-VLS) aboard Republic of Korea Navy destroyers; in service since 2010.

1 operator countries

Compiled from public sources ·primary reference ↗ ·last verified 2026-08-02

💲 ≈ $1,750,000 (public figure)

Procurement snapshot

Availability & export

ROK export-licensed

DAPA-administered; aggressive export posture with financing/offset packages.

Channel: Government-to-government

Fielded & proven

Limited · 1 operator

Status: active.

Lifecycle cost (est.)

Unit cost known; one-shot / small-arms class has no meaningful O&S tail to model.

Interoperability

No standardised NATO calibre / datalink detected in public specs.

Derived guidance from public data, export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.

Compatible munitions & weapons

Publicly reported weapons the K745A1 Red Shark can carry. Linked items have a full spec page.

Full specifications

Performance

Speed, range, altitude and engagement capability.

Performance specifications
Max speed

Maximum level speed. For aircraft this is at optimal altitude; for ground vehicles, top road speed. Higher means faster response and better kinematic performance.

83 km/h
Range

Maximum distance: ferry range for aircraft, operational range for vehicles, maximum engagement distance for missiles. Higher means more standoff or persistence.

19 km
Stronger than 27% of missiles

Firepower

Armament, payload and guidance.

Firepower specifications
Warhead type

Blast-fragmentation, shaped charge (HEAT), penetrator, thermobaric or nuclear-capable.

K745 Blue Shark lightweight torpedo payload
Guidance

How the weapon finds its target: inertial, GPS/GLONASS, active/semi-active radar, infrared, laser, TV, wire.

Midcourse inertial guidance, Terminal parachute release to torpedo payload

Physical

Dimensions, weight and crew.

Physical specifications
Length

Overall length including gun/probe where applicable.

5.74 m
Width

Overall width, matters for rail/road transport of vehicles.

0.38 m
Combat weight

Fully loaded weight. Lighter eases transport and bridging limits; heavier often means more armor.

820 kg

Propulsion

Engine, power and fuel.

Propulsion specifications
Propulsion type

Turbofan, turboshaft, diesel, gas turbine, solid-fuel rocket, ramjet…

Solid-fuel rocket with thrust-vector control

Program

Cost, production scale and operators.

Program specifications
Unit cost

Approximate flyaway/unit cost where public. Defense pricing varies hugely by contract, offsets and configuration. Lower is cheaper.

$1,750,000
Stronger than 26% of missiles
Operator countries

Number of countries operating the system. More operators means broader support ecosystem.

1
Stronger than 14% of missiles

Specifications compiled from public LIG Nex1 and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-08-02.

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Frequently asked questions

What is the top speed of the LIG Nex1 K745A1 Red Shark? +

The LIG Nex1 K745A1 Red Shark has a maximum speed of 83 km/h.

What is the range of the LIG Nex1 K745A1 Red Shark? +

The LIG Nex1 K745A1 Red Shark has a maximum range of 19 km.

How much does the LIG Nex1 K745A1 Red Shark weigh? +

The LIG Nex1 K745A1 Red Shark has a combat weight of 820 kg.

How many countries operate the LIG Nex1 K745A1 Red Shark? +

The LIG Nex1 K745A1 Red Shark is operated by 1 countries.

How much does the LIG Nex1 K745A1 Red Shark cost? +

The LIG Nex1 K745A1 Red Shark has an approximate unit cost of 1,750,000 USD. Defense pricing varies by contract, offsets and configuration, treat this as directional.

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