Abstract: A deployment system comprises a plurality of parallel linear guide rails, securely supported at their respective bases to a deployment portion of the spacecraft. Each of these linear guide rails contains a drive chain which is powered by a motor(s)/output gear box during the deployment sequence. The guide rail chain mechanisms are coupled to each other by means of drive shafts. Therefore, the drive shafts serve a dual purpose: 1) distribute power between the guide rail chain mechanisms as needed and 2) synchronize the guide rail mechanisms. A payload is provided having attach fittings located thereon for engagement with the linear guide rails. These fittings engage the drive chain. In this manner, the motion of the chain drives the payload fittings along the linear guide rails. During deployment, motion of the chains is produced by the motor(s), which accelerate the payload along the length of the guide rails.

Abstract: The deployment system comprises a plurality of parallel jack screws securely supported at their respective bases to a deployment portion of the spacecraft. The jack screws are rotatable with respect to that deployment portion. A synchronization chain is connected to the jack screws to insure precise timing between the screws. An electric motor provides rotation of the jack screws. A payload is provided having attach fittings located thereon for engagement with the jack screws. Prior to deployment, the payload is mounted to the jack screws. During deployment, synchronous rotation of the jack screws is provided allowing the payload to translate off the ends of the jack screws. Thus, the jack screws simultaneously serve as guides for the payload, providing a precise trajectory, and providing the driving force to eject the payload from the spacecraft.