Kh-58

🇷🇺Russian Federation
1978 – Present
Overview
Kh-58
The AS-11 Kilter (Kh-58) is a Soviet air-launched anti-radiation missile designed for suppressing enemy air defenses by targeting active radar systems. Introduced in the 1970s, it uses passive radar homing, has a range of up to 120 kilometers, and is typically deployed by aircraft like the Su-24 and Su-30, but its effectiveness is limited against non-emitting radars and modern countermeasures.
Specifications

General

Length M4.8 m
Range Km200 km
Launch Platformair
GuidanceInertial Measurement Unit (IMU) with passive radar seeker
Speed Mach3.6 Mach
Warhead Kg150 kg
Launch Weight Kg650 kg
Research Notes

Soviet/Russian anti-radiation missile

The Kh-58, NATO reporting name AS-11 Kilter, is an air-launched anti-radiation missile designed to attack radar emitters used by air-defense systems. Its role is suppression or destruction of enemy air defenses, forcing radar operators to choose between radiating and risking attack or shutting down and losing coverage.

Passive radar homing for SEAD missions

Kh-58 variants use passive radar guidance to home on hostile emitters. The missile is typically carried by strike aircraft equipped for electronic support and targeting, allowing the aircraft to identify radar threats and launch from outside the closest engagement zone. Later versions improved seeker coverage, range, and compatibility with newer aircraft.

Effective when integrated with reconnaissance and jamming

Anti-radiation missiles are most effective inside a coordinated SEAD package. Kh-58 can punish radars that remain active, but a well-trained defender may shut down, move, use decoys, or rely on passive sensors. The missile's battlefield impact is therefore measured not only by destroyed radars but also by disrupted air-defense coverage.

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