In September 1999, the Russians crossed the border of their Dagestan and Ingushtia Republics, engaging Islamic mujihadeen and Chechen rebels in the Second Chechen War. Given the mountainous terrain of the New Jersey-sized republic and the rebels' reliance on landmine warfare, helicopters quickly became a major factor in the Russian Federation's troop movements and supply missions. Russia has electronic countermeasures that could reduce the risk to their aircraft, but budget constraints have prevented their widespread fielding.
Helicopters were lucrative targets for the rebels. Mi-8 Hip helicopters transported troops and supplies, while Mi-24 Hind gunships typically escorted convoys, flew aerial reconnaissance missions, or delivered missile and rocket strikes on mujihadeen groups. The Chechen mujihadeen, armed with relatively inexpensive man-portable air-defense-system (MANPADS) missiles, were occasionally able to inflict casualties on helicopters with near-strategic consequences.
An Mi-8 Hip transport helicopter crashed in the vicinity of the Shelkovskaya village in January 2002. This accident was particularly devastating, since two generals and four colonels were among the 14 dead. The rebels claimed that one of their Special Groups had knocked out the helicopter with a MANPADS, while the Russians asserted that an internal explosion had actually caused the fatal crash. On September 17, 2001, a MANPADS brought down a Mi-8 helicopter near Grozny's Minutka Square. Two generals and eight colonels from the General Staff, as well as the helicopter crew, were killed.
As of January 30, 2002, the Russian Forces engaged in the Second Chechen War had officially lost 10 Hind gunships and over 20 Mi-8s during two years and five months of fighting. Rebel claims are higher, of course.
Defining the Threat Over Chechnya
During the First Chechen War (1994-1996), the rebels had four fairly sophisticated ZSU-23-4 self-propelled anti-aircraft guns (Shilkas), but their primary air-defense asset were six ZU-23s [twin 23mm towed AA cannons], along with an unknown number of KPV 14.5mm single- or double-barreled machineguns and DShK 12.7mm heavy machineguns, as well as automatic grenade launchers and light machineguns mounted on truck beds or carried in passenger cars. Fire from these anti-aircraft weapons was controlled via radio from command posts, and the gunners changed positions constantly, which hampered Russian attempts to detect and destroy them. Still, four Hinds received heavy machinegun damage by December 12, 1994. RPG-7 antitank grenade launchers were also popular anti-helicopter weapons. During the December battles on the approaches to Grozny, one grenade burned through an Mi-24's hull near the main reduction gear. The pilot managed to fly this severely damaged aircraft 40 minutes to its airfield. At the beginning of the 1994-96 conflict, the Chechens had an estimated 100 portable heat-seeking MANPADS. Russian ground troops captured several depots with large stockpiles of these missiles during the course of the fighting. Despite several observed launches though, there were no recorded hits, thanks to IR decoys and the guerrillas' lack of training on such complex weapons. There are four Soviet-era MANPADS that the Chechens inherited or acquired: the SA-7, SA-14, SA-18, and SA-16. During the First Chechen War, these "smart" weapons recognized Russian friend-or-foe systems as friendly and would not activate, but by the beginning of the Second Chechen War, the Chechens had learned how to rewire some of the Igla missiles to override those systems. One of the early Russian helicopter losses was an Mi-8 Hip on an artillery-fire-correction mission, shot down on September 11, 1999, by an SA-18 Igla portable SAM. The mujahideen claimed to have brought down another two Russian helicopters on February 23, 2000, with Igla and Strela missiles, along with fire from large-caliber machineguns.
In the Afghanistan War (1979-1989), thousands of US-made Stinger MANPADS were supplied to the mujihadeen, along with British Blowpipes, older US Redeyes, and even Egyptian copies of the Soviet Strelas. From experience gained in that war and in peacetime exercises prior to 1994, the Russians found that the best way for a group of gunships to survive their own attack run was to fly at extremely low altitudes towards the target and then split up, approaching it from different directions. After making their attacks, the helicopters would make a break-off turn and depart at extremely low altitudes, their wingmen providing mutual covering fire and all of them making full use of their EW equipment (decoy flares and IR jammers).
As Russia entered the Second Chechen War in September 1999, the $30,000 Iglas remained a potent threat and highly-pilferable item in the impoverished ranks of the Russian military, commanding anywhere from $25,000 to $70,000 to $200,000 on the black market. As a theater of operations, Chechnya was small enough that an Mi-24V group took, on average, 13-24 minutes to respond to a request for assistance, so the gunships were frequently called upon to engage targets right down on the deck. Russian pilots soon defined the MANPADS threat to be more likely to arise from an ambush of a reconnaissance aircraft or lone helicopter at lower altitudes than normal by a "revenge" attack on the aircraft's rear hemisphere. Their best advice was to maintain enough maneuvering power, liberally use chaff and flares, and to cover each other in flight.
Russian Helicopter Self-Defense Systems
Countermeasures dispensers were the most common and most used defensive device in both Chechen Wars. Fitted to both the Mi-24 and Mi-8 series were the ASO-2/-2bis and ASO-3 flare/chaff launchers. For instance, the Mi-8MTV/-17V Hip H can be fitted with ASO-2V flare dispensers under tailboom forward of the tailskid assembly initially, later triple racks (total of 192 flares) on sides of center fuselage. These were associated with the SPO-15 Beryoza (Birch) radar-warning receiver (RWR), which provided the helicopter with 360-degree protection. The Mi-24D's countermeasures suite typically included an infrared jammer, radar warner, and flare dispensers that are familiar leftovers from the days of the Soviet Army. The LIP microwave Doppler active missile-approach warner is fitted to the Mi-24 Hind and Ka-29 Helix, as well as the Su-25 Frogfoot fixed-wing close-support aircraft. In Afghanistan, the single set covering the Hind's rear and underbelly was found to be inadequate, since it provided no warning of missiles approaching from the forward arc or fired from high ground down onto the helicopter. Those installed on the Ka-29 marine assault helicopter (circa 1998) had a second antenna covering the forward arcs.
The L-166B1A airborne fixed-source infrared countermeasures (IRCM) systems (later, L-166V-11E Jspanka microwave pulse lamp) was designed for installation on the Mi-8MT/-17 Hip, Mi-24 Hind, and Mi-25 Havoc. It can be fitted in a "flower pot" container above forward end of the tail boom. The L-166B1A has an IR transmitter/radiator unit that weighs approximately 20 kg (weight and size of the lamp depends on the aircraft), a mechanical modulator, and a cockpit control box. The system is rated at 2.8 kW with a system life of 1,200 hours, a mean time between failure of 250 hours, and an infrared-source life of 50 hours. The L-166B1A IR jammer is reported to offer protection against the Sidewinder, IR Falcon, Mica, Strela 2M, Redeye, and Chaparral. As long as the Russians stay ahead of potential enemies hacking their MANPADS friend-or-foe systems, the most-likely threat to the Army's helicopters remains the Western weapons systems, such as the Stinger-RMP [Reprogrammable MicroProcessor] Block II and the French Mistral. To counter this threat and still get the most from their budget dollars, the Russians plan to upgrade their existing helicopter fleet as much as possible.
The Mi-28N Night Havoc represents a new generation of Russian combat helicopters, armed and protected with experience gained from Afghanistan and, to a lesser extent, Chechnya. The helicopter's Vitebsk self-defense system includes the Pastel radar-warning unit, Mak IR missile-approach warners, laser warners, a Platan electronic jamming system, and wingtip-mounted countermeasures pods with UV-26 flare dispensers. The dome atop the mast is for millimeter-wave radar. Photo by Michael Puttré
The Mil Design Bureau has a three-stage, five-block MLU configuration for the estimated 200 surviving Mi-24V/P in Russian Federation service that will extend their retirement date to 2010. While the vast majority of the improvements are to operating systems, Stage III deletes the L-166V-1E IRCM System and replaces it with the Mak-UFM IR missile-approach warner and the L-140 Otklik laser-warning system that detects and identifies hostile laser designators and rangefinders. When lasers and radars illuminate the helicopter, the warning system issues a message to the crew, indicating the type and direction of the threat. The Beryoza radar- warning receiver is replaced by the L-150 "Pastel" radar-warning receiver. The UV-26 chaff/flare dispensers are retained. Russia's two newest attack helicopters are the Mi-28 Havoc and the Ka-50 Black Shark. Only the "Black Shark" has seen combat in Chechnya, spurring new tactics even though the mujihadeen reportedly have yet to engage the two or three aircraft in theater. The Mi-28N Havoc's Vitebsk self-defense system includes the Pastel radar- warning unit, Mak IR missile-approach warners, laser warners, a Platan electronic jamming system, and wingtip-mounted countermeasures pods with UV-26 flare dispensers. An export version of this aircraft was offered to South Korea in 2000. The Ka-50 is fitted with a radar- warning receiver, an EW system and UV-26 chaff/flare dispenser. The L150 "Pastel" RWR in the tailcone, at rear of each wingtip EW pod and under, nose covers the 1.2- to 18-GHz frequencies and is able to intercept pulse, pulse-Doppler, and continuous-wave signals. It can operate in a stand-alone mode or be integrated with the electronic-countermeasures system. There are also four UV-26 chaff/flare dispensers, with a total of 512 chaff/flare cartridges in each wingtip pod with a predefined release sequence, and a L-136 Mak IR warner, as well as a L-140 Otklik laser warner.
One way for Russia to do an "end run" around budget shortfalls is to allow their technology to be purchased by other countries. With someone else footing the bill, Russian forces can reap the rewards of development experiences and overcome potential customers' reluctance to buy Russian equipment based on quality of after-sales support and avionics concerns.
Israel Aircraft Industries Lahav division has developed the "Peak-17" upgrade package for the thousands of Mi-8 and Mi-17 helicopters that Russia has exported. Based on the Mi-35 and Ka-50-2 cockpit design, the package includes an EW suite directly from the Ka-50-2. The Elta Division was responsible for the aircraft's EW suite, which includes laser- and radar- warning systems, a missile-warning system, and chaff/flare dispensers.