3. Primary Instructor SSG Ratliff Primary Instructor

4. Terminal Learning Objective Action: Introduction to Modernized Demolition Initiators

5. Developed in the late 40s Used in Civilian Market Introduced to the Army in 1996 HISTORY

6. CONSIDERATIONS MDI DOES NOT CHANGE CHARGE EMPLACEMENT OR SETUP MDI IS STRICTLY AN IGNITION SYSTEM CHANGE.

7. CAPABILITIES  Standard military demolition missions  Deepwater up to 30 meters  Quarrying(with special application).  Instant or delay initiation  Eliminates accidental initiation from static, transmitters, or electrical discharge  Hybrid (two types of firing systems)  MDI Stand Alone  MDI/Det Cord, Det Cord/MDI

8. COMPONENTS 8 M9 Holder M11-Cap M12/M13-Cap M15-Cap M14 Time Fuse M81-FI

9. M9 HOLDER USES: Secure a blasting cap (small flap end) Secure shock tubes to the blasting cap (larger flap) Can secure up to five shock tubes for initiation PACKAGING: 50 Ea Per box 10 boxes per crate Crate Total- 500

10. M9 HOLDER 1-2 Shock Tubes Looped under holder Looped under holder  3-5 Shock Tubes Tied in a knot Tied in a knot SECURING SHOCK TUBE

11. M11 BLASTING CAP  A branch line to a primary charge  To ignite shock tube or detonating cord  “High Strength Cap”

12. M11 DESCRIPTION  J HOOK CONNECTOR Used to secure det cord  PACKAGING Individual coil—30ft. long 6 coils per fiber board box 10 boxes per crate Crate Total= 60 coils  2 FLAGS  1 YELLOW (two meters from cap)  1 RED (one meter from cap)

13. M12 TRANSMISSION LINE  Relay for the initiation pulse to another relay or high strength cap  Low Strength Cap  Command Detonation “ Transmission Line Only”

14. M12 PACKAGING 500 FT. per spool 2 Ea spools per foil bag 4 bags per crate Crate total- 8 spools/ 4000 Ft.

15. M13 TRANSMISSION LINE  Relay for the initiation pulse to another relay or high strength cap  Low Strength Cap  Command Detonation “ Transmission Line Only”

16. M13 PACKAGING 1000 Ft spool 1 spool per foil bag 4 bags per crate Crate Total= 4 spools/ 4000 Ft

17. “High Strength Cap” 5 minute delay Length may be adjusted Detonates Explosives, Det Cord or Shock Tube M14 TIME DELAY

18. M14 PACKAGING Approx. 7 ½ ft. long 6 coils per fiber board box 10 boxes per crate Crate Total= 60 Coils

19. M15 CAP, DELAY “ Currently a specialized use item only”

20. M15 USES Provide a Delay in the System for Staged Demolitions Is usually used for Quarrying Operations

21. M15 PACKAGING 70 Ft Individual Coils 6 Coils Per Fiber Board Box 10 Boxes Per Crate Crate Total- 60 Coils/ 4200 Ft

22. M81 IGNITER To Ignite Time Blasting Fuse (M14) Ignite Shock Tube M81 has a stronger cap than M60, heavier case, and 2 plugs

23. M81 PACKAGING 5 Per Fiber Board box 60 Boxes Per Crate Crate Total - 300 Igniters

24. SUMMARY MDI Components Constructing a Nonelectric Initiating Assembly Constructing a Dual-firing System Priming Explosives