LPP JWI-4000

History

Czech defence company LPP unveiled the JWI-4000 Interceptor at Future Forces Forum 2026 in Prague. The system provides a dedicated hard-kill countermeasure against one-way attack drones. LPP is a Prague-based company that develops and manufactures a significant proportion of its critical technologies internally, including unmanned platforms, avionics, navigation systems, autopilots, mission software, and turbojet propulsion.

Design

The JWI-4000 is developed as an integrated counter-UAS architecture rather than a standalone interceptor airframe. The system combines the interceptor with a base station, ground station, radar, jamming-hardened multiband communications, and a compact catapult launcher. The interceptor incorporates an in-house autopilot, navigation unit, and multiple sensors. The base station within the launcher serves as middleware for the overall system.

LPP has identified the Geran-2 and Shahed 136 family and their derivatives as the primary threat category for which the system was designed. LPP states that the JWI-4000 can connect with dedicated detection radars through the ASTERIX protocol, allowing external air surveillance assets to provide target cueing and engagement data for integration into existing air defence networks.

Neutralisation of hostile unmanned aircraft is achieved through a thermobaric warhead designed to create an omnidirectional pressure effect around the engagement point, providing a dedicated hard-kill capability.

Specifications

The JWI-4000 interceptor has the following stated performance parameters:

• Maximum speed: 300 km/h
• Ceiling: up to 4,000 m
• Rate of climb: 35 m/s
• Operational endurance at maximum altitude: up to 10 minutes
• Engagement range at maximum altitude: up to 10 km
• Combat payload: up to 1.8 kg