1. Un-classify 1 First Israeli Multinational BMD Conference Haim Shuqrun, IAI/MLM Division New Approach in Lethality Enhancer Design for Exo-atmospheric "Hit to Kill" Interceptors

2. Un-classify 2 Context Introduction – Kinds of interceptors in lethality aspect Exo-atmospheric KV characteristics & design aspects The necessity of lethality enhancer Proposed solution - Advantages - System requirements - Working point – weight optimization Summary and conclusions

3. Un-classify 3 Introduction Blast fragmentation Hit to Kill Types of ballistic missile interceptors (lethality point of view) Using fragments kinetic energy to ensure damage Explosive charge as deploying mechanism Utilizing it’s own kinetic energy Arrow2 PAC2 SM3 GBI

4. Un-classify 4 Exo-atmospheric HTK KV characteristics Hit To Kill capability High velocities Light weight structure Compact Non atmospheric effects Lethality design aspects Small miss distances Small effective lethality radius (without LED) Very high closing velocity Non-massive structure

5. Un-classify 5 Why do we need lethality enhancer? Robustness Compensating intelligence uncertainty about the vulnerable volume location Compensating optical aiming point error Compensating guidance and control errors “Easy” validation (one fragment instead of complex and light structure body)

6. Un-classify 6 Proposed Solution Folded FDS Deployed system Inflatable torus as fragments deploying system (FDS) Rod fragments Inflatable torus Homing system Motor Existing Gas vessel Valve

7. Un-classify 7 Advantages Light weight Compact and easy to fold Known preset deploying radius - Un-necessity of accurate fusing system and range measurement Non explosive charge - Fragments attitude control - Un-necessity of S&A system - Maintenance, storage, mobility - Calm deploying process (shocks, indication, life signal) Applicable on axial acceleration KV's

8. Un-classify 8 Disadvantages Gas leakage Ground testability and verefication Thin layer – sensitive to thermal condition Long term storage – cloth permeability Relatively flexible structure

9. Un-classify 9 System Requirements Target KV MD Sweet Point Deployment radius Theoretically infinite fragments are required Illustration: not to scale!

10. Un-classify 10 Required Deployment Radius Asymptotic to infinite fragments amount

11. Un-classify 11 Weight illustration – Example RiRi R deployment W frag Illustration: not to scale!

12. Un-classify 12 Weight Optimization – cnt’

13. Un-classify 13 Moment of Inertia Optimization Increasing the deployment radius will reduce mass (the required fragments amount)

14. Un-classify 14 Summary and Conclusions Brief discussion on Exo-atmospheric KV characteristics The necessity of lethality enhancer Proposed solution – inflatable torus as deploying mechanism Advantages: - Simple - Robustness - Non explosive charge Working point – weight optimization