Air-Launched Weapons

KTRV finalises development of Grom air-to-surface munition variants

05 July 2019

Russia's Tactical Missiles Corporation (KTRV) has finalised development of new guided air-to-surface weapon system variants, designated Grom-E1 and Grom-E2.

Grom-E1 is a guided cruise missile and Grom-E2 is a guided glide weapon; both weapons feature a normal aerodynamic configuration and a common cylindrical body with an ogive nose cone, folding swept-back mid-body wing, and an aft actuator assembly. The weapons can be mounted either on external weapons stores or in an internal weapons bay of fourth- and fifth-generation air-combat platforms

The Grom-E1 weighs 594 kg, is 4.2 m in length, 0.31 m in diameter, and has a wingspan of 1.9 m. The missile is furnished with a 315 kg high-explosive (HE) fragmentation (frag) warhead coupled with an impact fuze. A 161 kg powerplant combines two solid-fuel engines, a booster, and a sustained motor. Inbuilt modularity with other KTRV weapon systems enables the Grom-E1 to integrate the solid-fuel engine from the Kh-38ME family of short-range air-to-surface missiles, a company representative told Jane's.

A combat aircraft flying at an altitude between 500 m and 12,000 m at a speed of 140-445 m/s can release the Grom-E1 at a distance of 10-120 km, with a target engagement angle of between -180° and +180°. The missile's average flight speed under initial launch conditions (height: 12,000 m, speed: 445 m/s, range: 120 km) is 300 m/s, with a g-load force on the missile reaching 4 g. The weapon is fitted with a combined guidance system that integrates an inertial measurement unit and a GPS/Global Navigation Satellite System (GLONASS) satellite navigation receiver, the representative said.

The Grom-E2 glide weapon weighs 598 kg, with airframe dimensions equal to those of the Grom-E1. However, the absence of a powerplant enables the Grom-E2 glide munition to be furnished with a larger 480 kg lethality package, with a 315 kg and a 165 kg HE-frag charge installed respectively fore and aft in the munition.

The KTRV Grom E-1 guided cruise missile displayed at the Army 2019 exhibition in Kubinka, Russia. (N Novichkov)The KTRV Grom E-1 guided cruise missile displayed at the Army 2019 exhibition in Kubinka, Russia. (N Novichkov)

Want to read more? For analysis on this article and access to all our insight content, please enquire about our subscription options at

(341 of 409 words)