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Primary Instructor. Primary Instructor SSG Ratliff. SSG Ratliff. Terminal Learning Objective. Action: Introduction to Modernized Demolition Initiators. HISTORY. Developed in the late 40s Used in Civilian Market Introduced to the Army in 1996. CONSIDERATIONS.

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primary instructor

Primary Instructor

Primary Instructor

SSG Ratliff

SSG Ratliff

slide3

Terminal Learning Objective

Action: Introduction to Modernized Demolition Initiators

slide4

HISTORY

  • Developed in the late 40s
  • Used in Civilian Market
  • Introduced to the Army in 1996
slide5

CONSIDERATIONS

  • MDI DOES NOT CHANGE CHARGE EMPLACEMENT OR SETUP
  • MDI IS STRICTLY AN IGNITION SYSTEM CHANGE.
slide6

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
slide7

M12/M13-Cap

M12/M13-Cap

M15-Cap

M15-Cap

M11-Cap

M11-Cap

M14 Time Fuse

M14 Time Fuse

M81-FI

M81-FI

M9 Holder

M9 Holder

8

COMPONENTS

slide8

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
slide9

M9 HOLDER

SECURING SHOCK TUBE

  • 1-2 Shock Tubes
  • Looped under holder
  • 3-5 Shock Tubes
  • Tied in a knot
slide10

M11 BLASTING CAP

  • A branch line to a primary charge
  • To ignite shock tube or detonating cord
  • “High Strength Cap”
slide11

M11 DESCRIPTION

  • 2 FLAGS
      • 1 YELLOW (two meters from cap)
      • 1 RED (one meter from cap)
  • J HOOK CONNECTORUsed to secure det cord
  • PACKAGING
    • Individual coil—30ft. long
    • 6 coils per fiber board box
    • 10 boxes per crate
    • Crate Total= 60 coils
slide12

M12 TRANSMISSION LINE

  • Relay for the initiation pulse to another relay or high strength cap
  • Low Strength Cap
  • Command Detonation

“ Transmission Line Only”

slide13

M12 PACKAGING

  • 500 FT. per spool
  • 2 Ea spools per foil bag
  • 4 bags per crate
  • Crate total- 8 spools/ 4000 Ft.
slide14

M13 TRANSMISSION LINE

  • Relay for the initiation pulse to another relay or high strength cap
  • Low Strength Cap
  • Command Detonation

“ Transmission Line Only”

slide15

M13 PACKAGING

  • 1000 Ft spool
  • 1 spool per foil bag
  • 4 bags per crate
  • Crate Total= 4 spools/ 4000 Ft
slide16

M14 TIME DELAY

  • “High Strength Cap”
  • 5 minute delay
  • Length may be adjusted
  • Detonates Explosives, Det Cord or Shock Tube
slide17

M14 PACKAGING

  • Approx. 7 ½ ft. long
  • 6 coils per fiber board box
  • 10 boxes per crate
  • Crate Total= 60 Coils
slide18

M15 CAP, DELAY

“ Currently a specialized use item only”

slide19

M15 USES

  • Provide a Delay in the System for Staged Demolitions
  • Is usually used for Quarrying Operations
slide20

M15 PACKAGING

  • 70 Ft Individual Coils
  • 6 Coils Per Fiber Board Box
  • 10 Boxes Per Crate
  • Crate Total- 60 Coils/ 4200 Ft
slide21

M81 IGNITER

  • To Ignite Time Blasting Fuse (M14)
  • Ignite Shock Tube
  • M81 has a stronger cap
  • than M60, heavier case,
  • and 2 plugs
slide22

M81 PACKAGING

  • 5 Per Fiber Board box
  • 60 Boxes Per Crate
  • Crate Total - 300 Igniters
slide23

SUMMARY

  • MDI Components
  • Constructing a Nonelectric Initiating Assembly
  • Constructing a Dual-firing System
  • Priming Explosives