Flight & ISS demonstrators – candidates, technical appraisal & costs

- trade-off analysis and selection of the 3 most promising 3 flight/ISS demonstrators - phase-0 assessment study for each of the 3 ground demonstrators selected in T2.1 - ROM cost for each of the 3 ground demonstrators selected in T2.1 - recommendation on demonstrator candidates whose implementation should be further studied in WP3