Heavy lift. Excess capacity.
And now a way to use it.

The ESPA Ring allows up to six secondary satellites, up to 400 pounds each, to "share a ride to space" on Delta IV or Atlas V launch vehicles while carrying a large primary satellite.  ESPA can accommodate up to a 15,000-pound primary satellite using the standard EELV interface plane bolt pattern:  it's a drop-in component in the launch stack.  The standard secondary interface is a 15-inch-diameter bolt circle with 24 fastners.

The ESPA structure underwent extensive engineering analysis and a qualification test program to demonstrate its capability to withstand the harsh launch vibration environment.  CSA can provide the mechanical design, stress analysis and structural test engineering to tailor ESPA for each customer's needs.

ESPA was developed by CSA Engineering, under an SBIR contract to the Air Force Research Laboratory Space Vehicles Directorate (AFRL/VS) for the DoD Space Test Program (SMC/Det 12).  STP developed technology requirements and operational inputs.  AFRL/VS led the research / development effort and integrated the technology development team.

Download ESPA brochure.

For more information, contact espa@csaengineering.com.

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