Facilities are available to prepare and maintain spacecraft and payloads for flight. Also aboard were 26 small satellites that were deployed as secondary payloads. They are capable of carrying large payloads of bombs, torpedoes or cruise missiles. It is being designed to launch "smallsat" payloads of into Earth orbit. Its cargo bay accommodates a variety of sensor payloads. The Block 5-second stage allowed multiple reignitions to place its many payloads in multiple orbits. Throw-weight is a measure of the effective weight of ballistic missile payloads. Its range will increase by some , taking its capability to around at current payloads. Another concept was to use the ET as a cargo carrier for bulky payloads. The original Canadarm was capable of deploying and retrieving payloads weighing up to in space. It includes five -diameter ports, each capable of carrying payloads weighing up . Packets with such payloads are called jumbograms. The virus has several mechanisms for pushing or pulling executable payloads over the network. SpaceX is planning to launch commercial payloads using Starship no earlier than 2021. It was intended to carry scientific payloads or possibly personal items.