TechUkrainian MiG-29s leverage advanced US bombs in Zaporizhzhia

Ukrainian MiG‑29s leverage advanced US bombs in Zaporizhzhia

The first footage showing the simultaneous drop of eight GBU-39 SDB guided bombs by a Ukrainian MiG-29 aircraft has been released online. We explain how this is possible.

A Ukrainian MiG-29 during the release of multiple GBU-39 SDB bombs.
A Ukrainian MiG-29 during the release of multiple GBU-39 SDB bombs.
Images source: © Telegram | Соняшник

3:08 PM EST, November 5, 2024

On the "Sinashnik" channel on Telegram, a video was posted showing the drop of eight GBU-39 SDB bombs by a MiG-29 aircraft, most likely belonging to the 114th Tactical Aviation Brigade of the Ukrainian Armed Forces. The attack took place somewhere in the Zaporizhzhia region.

MiG-29 and "bomb packs" from the USA

Currently, Ukrainians primarily rely on their remaining military aircraft, particularly the MiG-29s, whose losses and spare parts demands have been largely covered by Poland and Slovakia.

These fighter jets, while capable of carrying a modest load of aerial bombs, are far from being specialized strike machines. In practice, the MiG-29 can carry a maximum of four bombs weighing slightly over 1,300 pounds.

Meanwhile, the solution from the USA allows for carrying four smaller yet more precise bombs on a single pylon. This refers to the GBU-39B Small Diameter Bomb (SDB) introduced by the USAF in 2006. These small guided glide bombs, weighing 270 pounds, can be grouped into four sets using the BRU-61/A launcher while utilizing only one weapon suspension point, creating a "bomb pack." This enables Ukrainians to attack many targets in a single raid, which they actively utilize.

GBU-39 SDB — a small bomb capable of penetrating almost a meter of concrete

Each SDB bomb contains a 205-pound warhead capable of penetrating even 35 inches of reinforced concrete, which is unattainable for artillery shells. Another operating mode includes an airburst providing a wide area of shrapnel impact.

The guidance, unfortunately, relies on a jammable tandem of satellite and inertial navigation. However, there is also the GBU-39/B variant with a system based on a laser beam providing full precision even in such conditions. This variant is not a "fire-and-forget" type of weapon; instead, it requires laser target illumination until impact.

These bombs are equipped with folding wings, allowing them to fly over distances of several dozen miles when dropped from great heights. This enables the aircraft carrying them to remain out of reach of short-range air defenses.

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