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Ballistic missilesUnder developmentProfile in progress
SLBM
K-5 (ballistic missile) is a sLBM originating in India.
IndiaTechnical data
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 1 Oct 2026 | 9,190 km/h | Wikipedia contributors | superseded |
| 2 Oct 2026 | 9,190 km/h | Wikipedia contributors | approved |
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SLBM
India
Under development
Defence Research and Development Organisation
2,000 kg (4,400 lb ) nuclear war-head
Solid-fuelled
5,000–8,000 km (3,100–5,000 mi)
Mach 7.5 (9,190 km/h; 5,710 mph; 2.55 km/s)
Arihant-class submarines , S5-class submarines
K-5 is a submarine-launched ballistic missile under development by the Defence Research and Development Organisation of India .
The K-5 is a submarine-launched ballistic missile. The missile consists of three separate stages and uses solid rocket propellant . It is planned to have a range of around 5,000–6,000 km (3,100–3,700 mi). The missile will be able to carry a payload weighing two tonnes. It is being developed to match the range of the Agni-V missile. It will be equipped on the Arihant-class submarines code named S4 .
It is planned to have a range of around 5,000–6,000 km (3,100–3,700 mi).
The missile will be able to carry a payload weighing two tonnes.
On 12 September 2025, the Advanced Centre for Energetic Materials (ACEM) in Nashik conducted a static firing test of the second-stage motor developed under Project K5. The motor is a 10-tonne-class solid-propellant design measuring approximately 2.68 metres in length and 2.4 metres in diameter. Its composite motor case uses T700 carbon-fibre reinforcement with Epofine resin, while the propellant grain employs a nine-fin finocyl configuration of HD 1.3 composite propellant. The motor incorporates a pyrogen ignition system and a submerged, thrust-vectoring nozzle actuated by two electromechanical actuators.
The test was intended to characterise the motor's ballistic performance and verify the operation and safety margins of its major subsystems. Instrumentation comprising more than 250 measurement channels was used to acquire test data. The nozzle was commanded through approximately ±2° of movement, with actuator operation beginning 10 seconds after ignition. The recorded pressure and thrust profiles were reported to be consistent with pre-test predictions, indicating the expected motor performance during the static firing.
The motor was manufactured using a newly established 50-tonne-capacity cast-cure installation at ACEM, which employs hopper-based continuous casting for large propellant grains. The successful processing and subsequent firing provided a demonstration of the facility's capability for larger-class solid motors and was also the first reported test of this motor type at ACEM's refurbished static-test facility.
K-5 India Intercontinental Arihant, S5-class SSBN
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
K-5 (ballistic missile) equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.