Russia’s New Stealthy Lower-Cost Air-Launched Standoff Weapons On Display In Egypt
Russia is displaying some of its newest air-launched precision weapons in public for the first time at the El Alamein International Airshow in Egypt this week. The S-71K Kovyor and related S-71M Monokhrom, and the S8000 Banderol, reflect Russia’s effort to field larger numbers of relatively inexpensive standoff weapons alongside its more sophisticated and costly missile types. As such, their development and early employment are closely tied to the war in Ukraine, but they also reflect wider global interest in these kinds of weapons.
The weapons, seen in the tweet embedded below, comprise, clockwise from top left: S-71K Kovyor, an unknown smaller guided munition, S8000 Banderol, and S-71M Monokhrom:
For Russia, the requirement has become increasingly important as the war in Ukraine has evolved into a prolonged contest in which industrial capacity is as critical as technology. Russia has expended huge numbers of cruise and ballistic missiles against Ukrainian targets while also developing an enormous strike-drone campaign. At the same time, Ukrainian air defenses have become progressively more capable, forcing Moscow to use combinations of missiles, drones, decoys, and different flight profiles to penetrate or saturate the defensive network. One lesson is the fact that a weapon does not necessarily have to be as capable as a high-end cruise missile if it can be manufactured in much greater numbers and still present a credible threat to the target.
The S-71M, which TWZ previously reported on in detail after Ukrainian intelligence obtained an example, is a compact, turbojet-powered weapon with a distinctly angular airframe intended to reduce its radar signature. Imagery from Egypt gives a better look at its front end, including a faceted nose flowing into a broad central fuselage. The nose has at least one optically flat transparency for an infrared or TV seeker. Its wings are sharply swept and fold against the belly of the weapon for carriage, while the rear of the weapon terminates in an inverted-V tail arrangement. The overall shape is notably different from Russia’s more conventional cruise missiles of the past.
Ukrainian analysis found that the S-71M incorporates an OFAB-250-270 high-explosive fragmentation bomb as its warhead and relies primarily on inertial guidance, rather than carrying a sophisticated terminal seeker, although the seeker window raises questions about that.
Ukrainian intelligence also described its construction as being relatively straightforward, with fiberglass composite material making up much of the outer structure and no evidence identified of specialized radar-absorbing coatings.
As we noted previously, the weapon appears intended as a less expensive, but still survivable standoff weapon option that can be produced in significant numbers.
The S-71M has been tested from the Su-57 Felon fighter, also present at El Alamein. In a press release, the United Aircraft Corporation (UAC), responsible for the Su-57, said that the S-71M and the S-71K displayed alongside it “were designed for fifth-generation fighters,” although there is no reason why they couldn’t be launched from a wide variety of platforms.
A Su-57 performing at El Alamein, with one of its main internal weapons bays apparently loaded with Kh-69 standoff missiles:
Regardless of launch platform, the nature of the war in Ukraine make that the S-71M particularly useful. Russia has increasingly relied on extemporized glide bombs for attacks against targets relatively close to the front, but those weapons require the launching aircraft to operate within a certain distance of Ukrainian defenses. At least in their earlier iterations, such weapons were also crude and prone to failure. Longer-range cruise missiles offer considerably greater standoff but are more complex and expensive. The S-71M sits somewhere between those categories, providing an air-launched, powered weapon with a relatively large warhead and some degree of low observability without the cost and complexity of a full-size, truly stealthy cruise missile.
The S-71K appears to represent a more capable version of the basic concept. Public information remains limited, but the weapon has been associated with electro-optical guidance and greater onboard processing, potentially giving it a capability to deal with targets in a more flexible manner than the largely pre-programmed S-71M. Exactly how that capability is employed, and how autonomous the weapon actually is, remain less clear from the imagery and information released to date.
As displayed at El Alamein, the S-71K retains the overall faceted, low-observable appearance of the S-71M but has a visibly different airframe and wing arrangement. Its body is notably broad and compact relative to its length, with folding wings that are relatively thick, and a more refined inverted-V tail giving it more the appearance of a small uncrewed aircraft than a conventional air-to-surface missile.
Meanwhile, the Banderol represents a somewhat different path to the same general problem. Ukraine’s intelligence service previously obtained and analyzed an example of the small jet-powered cruise missile, which TWZ reported on last year. The weapon is considerably smaller than Russia’s principal cruise missiles and has been associated with launch from drones and helicopters. Its reported range of around 500 kilometers (311 miles) and relatively small warhead make it something of a complementary system intended to provide another, more economical way of putting a precision weapon onto a target from the air.
In terms of its appearance, the Banderol is more conventionally missile-like, with an ogival central fuselage, a pointed nose, and sharply swept folding wings. Its proportions underline just how small it is compared with Russia’s better-known air-launched cruise missiles.
The Banderol is particularly relevant in the context of the economics of the Ukraine conflict. Russian forces have increasingly used combinations of relatively inexpensive one-way attack drones and more expensive cruise and ballistic missiles. The drones can be produced in large numbers and used to complicate air-defense operations, while the more capable missiles provide greater speed, range, payload, or penetration capability. A small turbojet-powered weapon such as Banderol offers another point on that spectrum.
At leats one image has recently emerged showing a Banderol carried by a Russian Mi-28NM Havoc attack helicopter. This would be in line with unconfirmed reports from Ukraine last month that Russia was using the Mi-28 as an additional launch platform for the weapon, including firing them from over the Sea of Azov to attack targets around Odesa.
Its reported use also illustrates how the distinction between a cruise missile and a large one-way attack drone is becoming increasingly blurred. The Banderol incorporates a conventional missile-like airframe and jet propulsion but has been associated with drone operations and makes extensive use of commercially available components. TWZ’s earlier examination of the weapon also highlighted the extent to which modern Russian weapons programs can combine relatively simple airframes with foreign-sourced electronics and propulsion technology.
Seen together at El Alamein, the three weapons provide an unusually useful snapshot of where Russian air-launched strike development is heading. They are presented alongside a fourth, so-far unidentified munition. This unnamed weapon is notably short and fat, with a cruciform tail, and an optical window in the nose. Its overall size and shape suggest it may have been developed specifically to arm drones.
The appearance of the weapons at an arms fair underscores the fact that Russia is not the only country confronting the problem of producing and fielding sufficient precision weapons at an acceptable cost. The growing interest in lower-cost cruise missiles, loitering munitions, attritable aircraft, and other forms of expendable precision strike is now evident well beyond Russia.
Russia is also clearly trying to make these weapons harder to intercept, an increasingly important consideration as Ukrainian air defenses have demonstrated an ability to shoot down even glide bombs in some circumstances. The S-71K in particular incorporates unusually pronounced low-observable shaping, suggesting that survivability was also a central requirement from the outset.
There is, however, a significant complication to Russia’s attempt to turn its wartime experience into an export opportunity. Buying any kind of weapons from Moscow has become considerably more difficult because of sanctions, restrictions on access to foreign technology and financing, and the wider political risks associated with maintaining a Russian defense relationship. Those factors matter just as much to a prospective customer as the performance of the weapon itself.
Author’s note: earlier reporting on the S-71 family appears to have transposed the S-71K and S-71M versions. Most authoritative accounts now indicate that the more refined, more stealthy version is the S-71K Kovyor (meaning carpet), while the simpler weapon is the S-71M Monokhrom.
Contact the author: thomas@thewarzone.com