What is the Shahed-136? Iran’s Cheap One-Way Attack Drone, Explained

The HESA Shahed-136 — Iranian designation; redesignated Geran-2 by Russian forces — is a propeller-driven, delta-wing, expendable one-way attack drone (OWA-UAS) developed by Iran Aircraft Manufacturing Industries (HESA). Loosely modeled on Israeli Aerospace Industries’ Harpy concept, the Shahed-136 first emerged in Iranian inventory around 2019 and entered global notoriety in October 2022 when Russia began launching them by the dozens against Ukrainian energy infrastructure. By 2025 Russia had launched more than 10,000 Shahed-class drones against Ukraine, making the type the most-fired loitering munition in modern history. Russian production at the new Yelabuga plant in Tatarstan now exceeds 250 airframes per month.

Key facts at a glance

From Iranian inventory to global notoriety

The Shahed-136 was unveiled in Iran in 2019, deriving its delta-wing pusher-prop layout from HESA’s earlier Shahed-131. Initial combat use was attributed to Houthi forces in the Saudi Arabia / Abqaiq oil-facility strike of 14 September 2019 — although the actual attribution between Iranian-flown Sayyad/Quds-1 cruise missiles and Shahed-class drones remains contested. Russian military procurement of the type was confirmed by U.S. and UK intelligence in summer 2022. First Russian operational launches against Ukraine took place on 13 September 2022. Within weeks Russia had renamed the Iranian-supplied airframes Geran-2 and begun a large-scale production-transfer program at the Alabuga Special Economic Zone.

The Yelabuga production

The Alabuga Special Economic Zone near Yelabuga, Tatarstan, hosts what is now the world’s largest one-way attack drone production line. Russian state media and U.S. intelligence assessments estimate monthly production rates climbed from roughly 60 Shahed-136 airframes in mid-2023 to 250–300 per month by late 2025. The factory employs roughly 6,000 workers, including Iranian technical advisors and — controversially — African and Asian women hired under deceptive recruitment.

Russian-modified variants

Operational doctrine

Russian Shahed strike packages now follow a stable pattern: 30–80 drones launched in waves of 5–15 from coastal sites in Krasnodar Krai and from launchers in Belarus, deliberately mixed with cruise-missile attacks to saturate Ukrainian air defense. Drones cruise at 100–300 m altitude in roughly straight tracks toward energy infrastructure or military command targets, with terminal-phase routing programmed to avoid known SAM positions. Loiter capability is limited compared to true loitering munitions like Switchblade or Lancet — the Shahed flies a programmed route and detonates on a fixed target.

Combat record and Ukrainian response

Public Ukrainian Air Force tallies through 2025 indicate:

• ~10,000+ Shahed-class drones launched against Ukraine from October 2022 to mid-2025.
• Average intercept rate ~70–85 percent across the war, with significant variation by region.
• Successful strikes have caused billions of dollars of damage to power-generation infrastructure across at least four sustained campaign cycles (winter 2022, winter 2023, winter 2024, winter 2025).

The Ukrainian counter-Shahed response has been a textbook case of distributed innovation: mobile fire groups equipped with 23 mm and 35 mm guns and pickup-trucks-mounted Browning machine guns intercept the slow-flying drones at low altitude; older Soviet-era radar and acoustic detection systems are augmented with cheap acoustic and IR sensors fielded by civilian volunteer networks; and Ukrainian-built interceptor drones — typically modified racing quadcopters or small radio-controlled fixed-wing UAVs — have begun intercepting Shaheds in mid-air for less than USD 1,000 per shot.

How Shahed-136 compares

Why Shahed-136 matters

The Shahed-136 has been the most influential single weapon system of the Ukraine war’s second and third years. By driving the cost-per-engagement curve well below the cost of any plausible defensive missile, it forced Western and Ukrainian forces to fundamentally rethink low-cost air defense. The platform’s mass production at Alabuga has demonstrated that even a Western-sanctioned economy can sustain industrial-scale precision-strike capability if the per-unit complexity is kept low. Every NATO army’s air-defense and counter-UAS doctrine through the end of this decade will be shaped by lessons learned in interpreting the Shahed-136 problem.