Abstract: A spacecraft having a primary structural frame and a propellant tank, in which the spacecraft may include a tank mount adopted to engage a portion of the propellant tank, the tank mount being configured to transfer launch loads directly from the propellant tank to a lunch vehicle interface ring.

Abstract: An apparatus comprises a first plurality of walls, a second plurality of walls, and a plurality of channels formed by the first plurality of walls and the second plurality of walls. The second plurality of walls meets the first plurality of walls at substantially right angles and forms a housing with a first side and a second side. The plurality of channels extends through the housing from the first side to the second side. The plurality of channels has a first plurality of openings on the first side. The plurality of channels has a second plurality of openings on the second side. The plurality of channels has substantially a same shape and is configured to receive a plurality of battery cells.

Abstract: An apparatus comprises a first plurality of walls, a second plurality of walls, and a plurality of channels formed by the first plurality of walls and the second plurality of walls. The second plurality of walls meets the first plurality of walls at substantially right angles and forms a housing with a first side and a second side. The plurality of channels extends through the housing from the first side to the second side. The plurality of channels has a first plurality of openings on the first side. The plurality of channels has a second plurality of openings on the second side. The plurality of channels has substantially a same shape and is configured to receive a plurality of battery cells.

Abstract: A handler throw measuring unit (HTMU) for calibrating a test handler that handles an integrated circuit package. The throw measuring unit includes a plurality of pogo pins that are coupled to a base plate and a spring plate. The pogo pins are deflected when a test handler pushes the spring plate. The HTMU has a gauge that is coupled to the spring plate to measure the amount of pogo pin deflection. The amount of deflection can be provided on a numerical readout. An operator can incrementally move the test handler until the readout provides a desired value.

Abstract: A handler throw measuring unit (HTMU) for calibrating a test handler that handles an integrated circuit package. The throw measuring unit includes a plurality of pogo pins that are coupled to a base plate and a spring plate. The pogo pins are deflected when a test handler pushes the spring plate. The HTMU has a gauge that is coupled to the spring plate to measure the amount of pogo pin deflection. The amount of deflection can be provided on a numerical readout. An operator can incrementally move the test handler until the readout provides a desired value.