The SAGE ITD contains 6 technology development programmes and accompanying test and demonstration vehicles, distinguished by application (helicopter, regional, narrow-body and wide-body) and by engine architecture or technical focus. These demonstration vehicles use the competencies and facilities of all the European aero-engine manufacturers complemented with those of related Research Establishments, Academia and SMEs. The six engine demonstrator projects are designated:
- SAGE1, Open Rotor (to advance technologies to TRL 4/TRL 5)
- SAGE2, Open Rotor
- SAGE3, Large 3-shaft Turbofan
- SAGE4, GearedTurbofan
- SAGE5, Turboshaft
- SAGE6, Lean Burn
The Counter-Rotating Open Rotor (CROR) is a major project of Clean Sky, involving efforts mostly in SAGE and SFWA ITDs, and also in GRA.