Fattah-1

Iran's most advanced operational ballistic missile — a solid-propellant medium-range weapon with a powered maneuvering re-entry vehicle, marketed by Tehran as "hypersonic," and the centerpiece of its evolving effort to defeat regional missile defenses.

Overview

The Fattah-1 (Persian فتاح, "conqueror" or "the opener" — a name chosen personally by Supreme Leader Ali Khamenei) is a solid-propellant medium-range ballistic missile with a powered maneuvering re-entry vehicle, fielded by the Islamic Revolutionary Guard Corps Aerospace Force. Iran unveiled the weapon in June 2023 and promoted it as its "first hypersonic missile" — a label independent analysts dispute as obscuring more than it illuminates. It is the first Iranian missile designed from the outset to maneuver both inside and outside the atmosphere, using a small solid rocket motor with thrust-vector control in the re-entry vehicle to evade terminal and — Tehran claims — midcourse missile defenses. Debris analysis by independent researchers confirmed its combat use against Israel in 2024, and Iranian state media asserted further Fattah-1 launches in the June 2025 and 2026 escalation cycles.

Development

The IRGC Aerospace Force announced the development of a "hypersonic ballistic missile" on 10 November 2022, with commander Amir Ali Hajizadeh describing it as a "major generational leap" capable of breaching all anti-missile defense systems and predicting that countering it would take decades. The missile was formally unveiled as the Fattah-1 on 6 June 2023 at a ceremony attended by President Ebrahim Raisi, according to Al Jazeera. Hajizadeh claimed a range of 1,400 km, speeds of Mach 13–15, and the ability to maneuver both inside and outside the atmosphere via a movable nozzle on the second-stage motor.

Fabian Hinz of the International Institute for Strategic Studies assessed the Fattah-1 as a logical next step in Iran's incremental missile development — progressing from terminal course-correction on the Kheibar Shekan (2022) to sustained evasive maneuvering — and noted the IRGC likely unveiled it in institutional rivalry with the defense ministry's MODAFL, which had showcased its own Khorramshahr-4 days earlier, per IISS. The Iran Watch database identifies the booster as derived from the Kheibar Shekan design and classifies the re-entry-vehicle motor as post-boost propulsion rather than a true second stage. The same source notes the missile had reached deployed status by the time of its first assessed combat use in April 2024.

Design & capabilities

The Fattah-1 is a solid-propellant medium-range ballistic missile whose distinguishing feature is a powered re-entry vehicle combining a compact solid rocket motor with a movable nozzle for thrust-vector control, aerodynamic control surfaces, and a conventional warhead estimated at ~350–450 kg. Iran Watch classifies the system as effectively single-stage — a Kheibar Shekan-derived booster with post-boost maneuvering capability in the RV. The IRGC claims the RV motor ignites approximately 300–500 km from the target to power terminal-phase and exoatmospheric evasive maneuvers, an arrangement IISS describes as embedding a MaRV rather than constituting a true hypersonic glide vehicle or hypersonic cruise missile.

Iranian officials claim a top speed of Mach 13–15, but one independent analysis estimates the terminal impact velocity at roughly 1,400 m/s (~Mach 4.1), well below the hypersonic threshold at the point where it matters. The missile follows a predictable, high-arcing ballistic trajectory through midcourse — the portion of flight most relevant to exoatmospheric interceptors — and maneuvers only briefly in the terminal phase. Tehran's assertion of exoatmospheric maneuvering, if accurate, would represent an unusual capability for a MaRV-type weapon, but the claim remains unverified from open sources. Solid propellant supports rapid launch preparation and higher combat survivability compared with Iran's older liquid-fueled force, consistent with Tehran's two-decade shift toward solid-fuel missile designs.

Guidance details, accuracy (CEP), dimensions, launch weight, and production rate are not publicly established. The launch platform is a land-based ground launcher whose exact configuration remains undocumented in open-source material.

Variants

A single displayed variant exists: the Fattah-2, unveiled before Supreme Leader Khamenei in November 2023. It mates the Fattah-1 booster with a re-entry vehicle incorporating glide capability — described in Iranian media as a waverider or hypersonic glide vehicle-type design — and is listed by Iran Watch with a liquid-fuel MaRV and a ~1,500 km claimed range. The Fattah-2 has been displayed but never observed in flight, and its maturity lags far behind the combat-used Fattah-1. The two should not be conflated.

Combat record / operational use

The Fattah-1's first assessed combat employment came during Iran's two mass missile attacks on Israel in 2024. Researchers at the James Martin Center for Nonproliferation Studies identified Fattah-1 debris from both the 13 April and 1 October strikes; nonproliferation scholar Jeffrey Lewis noted that more Fattah-1 debris was recovered from the October attack, "which may explain the apparently more successful nature of the strike," according to Wikipedia's compiled debris analysis. The 1 October "True Promise II" salvo of roughly 200 ballistic missiles triggered 18 documented Arrow-3 interceptor launches and saw 32 missiles penetrate to Nevatim Air Base, per Arms Control Wonk — though those figures describe the entire salvo, not Fattah-1 hits in isolation.

During the 12-day June 2025 Israel–Iran war, the IRGC claimed on 15 and 18 June to have launched Fattah-1 "hypersonic" missiles at Israel in overnight waves. PBS NewsHour reported that Israeli assessments characterized Iran's roughly 400-missile campaign as causing damage with just over 40 weapons and found the Fattah-1 had "minimal success" against layered Israeli defenses. The War Zone listed Fattah-1 among the types Iran employed alongside Emad, Ghadr, Sejjil, Haj Qassem, and Kheibar Shekan, including at least one strike with a cluster warhead for which the carrier missile type was not independently confirmed. The FPRI documented that Iran's overall missile force suffered heavy attrition of launchers, stocks, and production capability during the war.

In the 2026 escalation cycle, Iranian state media claimed Fattah-1 use in the "22nd wave" of Operation True Promise during the 28 February – 8 April US-Israeli air campaign against Iran. After the ceasefire, Iran fired 24 ballistic missiles at Israel on 7–8 June 2026 in retaliation for an Israeli strike on Hezbollah's Beirut headquarters; the IDF said all were intercepted or fell in open areas, though satellite imagery suggested hangar damage at Ramat David Air Base. Whether Fattah-1 rounds were included in that salvo was not publicly confirmed.

Advantages

• Terminal-phase maneuvering via a TVC-powered MaRV is designed to defeat endo-atmospheric terminal defenses — the same defensive benefit a glide vehicle buys, according to IISS.
• Claimed exoatmospheric maneuvering — unusual for a MaRV — is intended to complicate midcourse interceptors such as Arrow-3 as well (Iranian claim; extent unverified).
• Solid propellant enables rapid launch and higher readiness/survivability than Iran's legacy liquid-fueled missiles, consistent with Tehran's two-decade shift to solids, per Iran Watch.
• Assessed combat use confirmed: CNS researchers identified more Fattah-1 debris in the 1 October 2024 strike than in April, correlated with a higher penetration rate against Israeli defenses.
• Sits atop an incremental, proven development line (Fateh → Kheibar Shekan → Fattah), which IISS credits with steady real gains in accuracy and survivability despite propaganda hyperbole.

Drawbacks / limitations

• Not a true hypersonic weapon by standard definitions: it is neither a hypersonic glide vehicle nor a hypersonic cruise missile; it follows a predictable, interceptable ballistic trajectory through midcourse and maneuvers only briefly in the terminal phase, per IISS and Iran Watch.
• Demonstrated interceptability: Israeli defense researchers assessed that over 95 percent of Iranian missiles could be intercepted "because speed is not crucial," and the Fattah-1 showed "minimal success" in the June 2025 war, according to PBS.
• Terminal impact velocity decays to an estimated Mach 4.1 — well below the hypersonic threshold at the point where penetration matters, per Nordic Defence Review.
• Key parameters — CEP, dimensions, launch weight, production rate, unit cost — are unpublished, and headline performance figures originate from IRGC claims that cannot be independently verified.
• Iran's broader missile force suffered heavy attrition of launchers, stocks, and production capability in the 2025–2026 conflicts, constraining what any single missile type can deliver.

Counterparts

• Kinzhal (Russia) — air-launched ballistic missile with claimed maneuvering capability, operational in the Ukraine war.
• DF-17 (China) — road-mobile medium-range system carrying a genuine hypersonic glide vehicle, representing the capability the Fattah-1 aspires toward but does not match.

Outlook

The Fattah-1 will remain the sharp end of Iran's defense-evasion effort as Tehran rebuilds a missile force depleted by the 2025–2026 wars. Israeli officials observed replenishment activity underway by late 2025, and Iran Watch reports that Iran is specifically working to improve re-entry-vehicle maneuverability after parts of its arsenal underperformed against US and Israeli layered defenses. The missile's trajectory is tied to an escalation cycle that remained live through June 2026 and to whether the glide-capable Fattah-2 ever advances from exhibition piece to tested weapon — which would pose a qualitatively harder problem for exoatmospheric interceptors than the Fattah-1's brief terminal maneuvers. As long as Iran remains outside the circle of states fielding true hypersonic glide vehicles, the Fattah-1 represents a pragmatic investment in incremental gains rather than a revolutionary capability.

Key specifications

Sources

1. Wikipedia — "Fattah-1." https://en.wikipedia.org/wiki/Fattah-1
2. IISS (Fabian Hinz) — "Removing the hype from Iran's 'hypersonic' conqueror." https://www.iiss.org/online-analysis/military-balance/2023/07/removing-the-hype-from-irans-hypersonic-conqueror
3. Iran Watch (Wisconsin Project) — "Table of Iran's Missile Arsenal." https://www.iranwatch.org/our-publications/weapon-program-background-report/table-irans-missile-arsenal
4. Al Jazeera — "Fattah: Iran unveils its first hypersonic missile." https://www.aljazeera.com/news/2023/6/6/fattah-iran-unveils-its-first-hypersonic-missile
5. PBS NewsHour / AP — "Why hypersonic missiles are stirring fears in the conflict between Israel and Iran." https://www.pbs.org/newshour/world/why-hypersonic-missiles-are-stirring-fears-in-the-conflict-between-israel-and-iran
6. The War Zone — "Iran Just Used Ballistic Missiles With Cluster Warheads To Strike Israel." https://www.twz.com/land/iran-just-used-ballistic-missiles-with-cluster-warheads-to-strike-israel
7. Nordic Defence Review — "Iran's Hypersonic Threat: Can Israel's Missile Shield Keep Up?" https://nordicdefencereview.com/irans-hypersonic-threat-can-israels-missile-shield-keep-up/
8. FPRI — "Shallow Ramparts: Air and Missile Defenses in the June 2025 Israel-Iran War." https://www.fpri.org/article/2025/10/shallow-ramparts-air-and-missile-defenses-in-the-june-2025-israel-iran-war/
9. Arms Control Wonk — "A Fistful of Interceptors: ABM Performance During True Promise II." https://www.armscontrolwonk.com/archive/1220797/a-firstful-of-interceptors-abm-performance-during-true-promise-ii/
10. Axios — "Iran fires missiles at Israel for first time since ceasefire." https://www.axios.com/2026/06/07/iran-israel-missiles-us-tehran-negotiations-ceasefire-risk
11. The Times of Israel — "Satellite images appear to indicate damage at IAF base following Iranian missile attacks." https://www.timesofisrael.com/satellite-images-appear-to-indicate-damage-at-iaf-base-following-iranian-missile-attacks/