Flexible Detonating Cord (FDC)

Flexible Detonating Cord (FDC) is a type explosive transfer line consisting of metal-sheathed energetic material drawn in a round configuration with booster shell end tips.

Typical FDC is manufactured using Mild Detonating Cord (MDC) with minimal outer covering. An outer sheathing of flame retardant semi-rigid tubing produces a durable and flexible energy transfer line that permits easy routing in confined spaces. Its inherent reliability can be enhanced in system applications through the use of crossovers of the same energy transfer lines. High energy output tips are available with various explosive loads tailored to application requirements. End tip configurations can be provided to replicate Shielded Mild Detonating Cord (SMDC) Assemblies.

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FUNCTIONS & APPLICATIONS

Functions

Our FDC’s provide point to point detonation signal transfer allowing for the networking of explosive / pyrotechnic components. The loaded booster end tips are used for reliable detonation input and output. The detonation output can transfer to other FDC’s, to drive mechanical components (pin pullers, cable cutters, etc.) or to initiate larger explosive charges. FDC’s are best suited to application where containment of combustion by-products is not required and flexibility in routing during installation is desired. FDC is primarily used in missile, munitions and target vehicle Flight Termination System (FTS) applications, where byproducts of combustion containment is not required

Applications

Our FDC’s are range safety approved for programs such as Standard Missile, Rocket Systems Launch Platform (RSLP), Payload Launch Vehicle (PLV), Supersonic Sea Skimming Target (SSST) and Minotaur IV.

PERFORMANCE CHARACTERISTICS

  • Weight
    4.60g per end tip (.375-24 UNF) plus 0.70g per inch of length
  • Pull Test
    100 lbs.
  • Temperature Cycling
    -65°F/+368°F 8 Cycle/ 2 Hours Minimum
  • Operating Temperature
    –65°F to +165°F
  • Initiation
    No. 6 Blasting Cap or various qualified devices available through PacSci EMC (Arm Fire Initiators, Lanyard Pull Initiators, Electrical Detonators, EFIs, Safe Arm Devices)
  • Output
    0.010 inch minimum dent depth in steel plate
    0.040 inch minimum dent depth in aluminum plate
  • Sinusoidal Vibration
    45 – 80 Hz, 21G
    170 – 200 Hz, 12G
    300 – 400 Hz, 12G
    450 – 550 Hz, 86G
    600 – 700 Hz, 74G
    720 – 900 Hz, 84G
    700 – 1000Hz, 70G
    1600 – 1750 Hz, 22G
  • Shock
    100 – 10,000 Hz, 105 – 7350G
  • Acceleration
    20G’s, 5 Minimum
    3 Axis, Both Directions
  • Random Vibration
    65.9 GRMS
  • High Temperature Storage
    +160°F, 40 – 60RH, 30 Days

ENVELOPE/INTERFACE DESIGN

Typical 3/8 Threaded End Fitting Configuration.

Flexible Detonating Cord Technical