The CS-23 category in the General Aviation domain requires affordable, greener technologies and support single-pilot operation. The CS2 COAST project addresses these needs by proposing i) a leap-change in computation performance, ii) reduction of development and operational costs, and iii) reduction of Size, Weight, Power, and Cost (SWaPC). In the COAST project, the findings in these technological areas are packaged in a common platform referred as a Compact Computing Platform (CCP). The CCP

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... ort is split in two areas of development -Platform Engineering and Innovative Elements. The first area covers the development of the necessary Hardware (HW) and Software (SW) building blocks. The second area corresponds to the advanced features that provide product differentiation and competitive advantage on the market. In this paper, we briefly describe the most significant SW and HW components from both technological areas and their potential integration in a demonstrator.