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Expanding Tube Assembly (XTA).

XTA | ETA | XSMDC

PacSci EMC / Products / Linear Explosives / Expanding Tube Assembly (XTA)

EXPANDING TUBE ASSEMBLY

Expanding Tube Assembly

How An Expanding Tube Assembly Works

Expanding Tube Assemblies (XTA), also known as Expanding Shielded Mild Detonating Cord (XSMDC), are used to provide explosively driven, contamination-free reliable separation. The expanding tube assembly is a formed stainless steel tube containing a linear Mild Detonating Cord (MDC). The tube is formed into an oval shape and sealed on both ends by welded end fittings which include loaded booster shells. These shells provide means for redundant initiation of the assembly. After initiation, the MDC propagates and the energy expands the tube creating the necessary mechanical impulse to achieve separation of the targeted assembly. Targets for separation include aluminum ligaments, acrylic panels, frangible hooks, or other frangible structures as Expanding-Tube-Assembly-imagedesired by customer specification.

FUNCTIONS

The XTA is used in applications requiring precise separation and containment of combustion products. It is used for low weight applications due to reduced need for reinforcements to support device compared to alternative systems. The attenuating properties of the XTA reduce vehicle and crew exposure not only to combustion products but harmful overpressure in extreme environments while still maintaining the benefits of using an explosive separation system. XTA can be used in applications from the upper atmosphere to underwater conditions.

 

APPLICATIONS

  • Used on Rotor Systems Research Aircraft (RSRA) X-wing
  • Used on F-16 canopy emergency jettison system
  • Used on Delta III stage separation
  • Used on Delta IV stage separation
  • Qualified for use on Apache AH-64 canopy fracturing system (CFS).
  • Integrating for use on Commercial Crew Transportation System (CCTS) CST-100.

PERFORMANCE CHARACTERISTICS

  • Operating Temperature

    -70°F to +180°F

  • Output

    Severance of .075” Aluminum
    Severance of .150” Stretched Acrylic

  • Initiation

    Electrical Detonator with typical 1 grain Booster Shell
    Energy Transfer Line – SMDC, FCDC

  • Shock

    Frequency

    (Hz)

    100

    100-3000

    3000+

    Spectrum Level

    (Q=10)

    30

    +5.3dB/Octave

    2125G

  • TSH & A

    28 days per MIL-D-21625

  • Salt Fog

    Mil-D-21625

  • Sand & Dust

    Mil STD 810-G

  • Icing

    Mil STD 810-G

  • Applicable Specifications

    Qualified for

    DODE-83578A

ENVELOPE / INTERFACE DIMENSIONS

PacSci EMC’s Expanding Tube Assembly can be customized to fit many customer envelopes.
Expanding Tube Assembly Technical Envelope

LET US HELP

Need more information or have a specific requirement you would like us to meet?
Email aircraftmil@psemc.com or call (888) 995-5015.

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