De-risk assessment: LEROS ACE-25 Engine Development
Programme
                            GSTP
            Programme Reference
                            G617-241TAdn
            Prime Contractor
                            Nammo (U.K.) Limited
            Start Date
                            End Date
                            Status
                            Closed
            Country
                            United Kingdom
             
          Objectives
                            As a subpart of the overall engine development program GSTP funded the investigation of alternative ‘high performance’ injectors. While NAMMO funded their lower risk more classical approach. The design performances were to be determine by hotfire testing of the selected injectors with appropriate chambers. 
Description
                            Current main engine strategy for space craft is a single point failure. NAMMO customers have requested a multiple engine capability. This required a new class of engine.
Multiple high risk candidates were design and hydraulically screened. Three candidates were put through hotfire testing for performance characterization. Multiple chamber length studies were conducted to identify the correct chamber and injector combination. The alternative injectors proved to be better performers than the classical approach. Thermal margins also give grounds for optimism that they will be ultimately successful for this application.  
Potential performance benefit for main engines for the next generation of spacecraft. Alternative architecture now open to manage mission critical risks associated with main engine operations.
Follow on activity is in preparatio.
Application Domain
                            Generic Technologies
            Technology Domain
                            19 - Propulsion
            Competence Domain
                            7-Propulsion, Space Transportation and Re-entry Vehicles
            Initial TRL
                            TRL 2
            Target TRL
                            TRL 6
            Achieved TRL
                            TRL 4
            Public Document
                            Executive Summary
      
            
      
      