A powerful cruiser design from the Calidna Research and Development Labs, the Excalibur-class Cruiser was designed as a close fighting vessel which could support a larger ship. Built in traditional Omega design architecture, overall appearances were taken from the Bulk Cruiser/Carrier and the Dreadnaught designs, but given a Muir bent and changed to a degree. It was also the first instance of the usage of design values that would eventually become the Muir Core Values of ship design, a process of thought that would play a heavy factor in the design and development of the Sarithe-class.