HESA Shahed 136
Based on Wikipedia: HESA Shahed 136
In December 2021, a video emerged from an Iranian military facility that would reshape modern warfare. The footage showed a drone with cropped delta wings and a two-bladed propeller mounted on a launch rail—America's nightmares had just become reality. The Shahed-136, a one-way attack drone designed to crash into targets with explosivePayloads, had arrived.
The story begins in Tehran, where engineers at HESA—a state-owned corporation operating out of Shahed Aviation Industries—built what would become one of the most prolific kamikaze drones in contemporary conflict. The munition carries a warhead weighing 30 to 50 kilograms, enough to shatter infrastructure and cripple critical systems. Its fuselage stretches 3.5 metres, with wings spanning just 2.5 metres—compact dimensions that allow it to hide within civilian landscapes.
The drone's heart is an Iranian-made MD-550 engine, a marvel of reverse engineering. This powerplant traces its lineage to Germany's Limbach L550E, a 550cc four-cylinder two-stroke petrol engine originally designed for light aircraft. The MD-550 sits at the rear of the fuselage and drives a two-bladed pusher propeller, pushing the drone to speeds exceeding 185 kilometres per hour.
"The Shahed-136 represents a paradigm shift. It is cheap, autonomous, and nearly impossible to intercept reliably."
Anatomy of Death
The aircraft possesses a distinctive cropped delta-wing shape, with a central fuselage blending seamlessly into its wings—vertical stabilizing rudders at the tips give it an almost organic appearance. The nose section houses the warhead, while propulsion systems sit rearward. Its resemblance to the German-developed Drohme-Anti-Radar (DAR) from the 1980s has sparked debates about industrial espionage, though whether there was actual copying remains an open question.
Range becomes its most controversial characteristic. Estimates vary wildly—from 970 to 1,500 kilometres up to as much as 2,000 to 2,500 kilometres—leaving air defence analysts uncertain about which targets the drone can actually reach. The United States Army's unclassified equipment guide suggests an aerial reconnaissance option exists within the design, though no cameras were noted in Russian versions.
A New Era in Ukraine
Russia embraced the Shahed-136 with enthusiasm that surprised even Iranian designers. In the Russo-Ukrainian war, the drone—designated Geran-2 in Russian service—struck Ukrainian infrastructure repeatedly. Moscow's forces deployed them massively, and Russia began manufacturing its own versions from facilities in the Alabuga Special Economic Zone in Tatarstan.
By July 2023, British-based Conflict Armour Research examined remains of two Geran-2s used in Ukraine, discovering major differences from Iranian originals—airframe construction now featured fiberglass over woven carbon fiber rather than lightweight honeycomb. Analysis revealed components dated from 2020 through 2023, with twelve components bearing dates after the February 2022 invasion start.
The Russian versions differed significantly. In October 2022, The Times of Israel noted that Iranian navigation systems using civilian components had been replaced entirely with Russian flight control units and microprocessors operating on the GLONASS satellite navigation system rather than American GPS—enhancing loitering capability substantially.
"We've seen Geran-2s painted black for night operations. They avoid strong light sources en-route, forcing us to use night-vision devices instead of searchlights."
The Foreign Components Problem
Examining captured drones revealed something disturbing: the Shahed-136 and its derivatives rely heavily on foreign components. In December 2023, Ukrainian National Agency on Corruption Prevention stated Russian-produced Geran-2 included fifty-five parts made in the United States, fifteen from China, thirteen from Switzerland, and six from Japan.
Analysts found American components throughout—Texas Instruments TMS320 processors, Altera chips (manufactured by the American company), RF modules by Analog Devices, LDO chips by Microchip Technology. A British report presented to the United Nations Security Council stated a Shahed-136 version was used in 2023 against moving vessels in the Gulf of Oman, requiring either sensors to lock onto targets or operators controlling via real-time feeds.
The evidence suggested concerning capabilities. An Iridium satellite phone SIM card found in debris indicated possible control beyond line-of-sight. In December 2023, remains from drones showed SIM cards and 4G modems typical of mobile phones—suggesting communication experiments on Ukrainian networks.
Evolution and Adaptation
Russia significantly hardened and upgraded Geran-2 through multiple iterations, becoming independent of Iranian development. By late September 2023, Russian forces began packing warheads with tungsten ball shrapnel similar to GMLRS M30A1 and M30A2 series—Ukrainian officials confirmed modifications included new warheads (tungsten shrapnel), engines, batteries, servomotors, and bodies.
One iteration enabled electromagnetic spectrum surveys, transmitting data to assist safer route planning for follow-on munitions. By May 2024, a heavier 90 kg warhead version appeared—relocated internals resulted in smaller fuel tanks dropping capacity to 71 litres, reducing maximum range to just 650 kilometres. A 52 kg thermobaric warhead option was also reported.
Production costs climbed sharply—one 2024 paper estimated increases from $30,000 to approximately $80,000 per unit. By May 2025, the 90 kg warhead version had been widely deployed against Ukrainian electricity infrastructure specifically.
In September 2024, Ukrainian sources reported remains of a shot-down Geran-2 included Starlink satellite communications systems providing internet connectivity over Ukraine—presumably supporting real-time video or electromagnetic spectrum surveys. By May 2025, The Kyiv Independent quoted mobile air defence sources stating the drone had begun avoiding strong light sources en-route, prompting air defence units to use night-vision devices instead of searchlights.
The American Response
In December 2025, announced U.S. military development of LUCAS—a clone of Shahed-136—deploying a squadron in the Middle East. This represented acknowledgment that cheaper autonomous drones would define future conflicts. The Iranian-designed aircraft, born from civilian German engines and Western components, had transformed global warfare.
The Shahed-136 story illustrates a new reality: cheap, mass-producible drones can overwhelm air defences reliably, forcing nations to reconsider defence strategies fundamentally.