Reusable Booster System Review and Assessment (2012) / Chapter Skim
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5 Program Implementation
5 Program Implementation
Pages 67-76
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From page 67... ...
conceptual design and technology efforts that support it should be completed through initial flight testing before committing funding for the remainder of RBS development. In addition, the committee believes that the demonstrator phase and the RBS-Y conceptual design and technology efforts that support it should be successfully completed through initial flight testing before the RBS-Y design is initiated.
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From page 68... ...
Techniques to enable rapid ground processing Appendix F Development 2010 2015 2020 2025 2030 Phase AGN&C Simulation Lab Testing IVHM Preliminary Path nder Design Critical Design Fab & Assy On-Ramps Flight Demos AJ-26 AJ-26 w/IVHM PDR Conceptual CDR RB Demo Design Preliminary Design Critical Design Fab & Assy Flight Demos Conceptual RBS-Y Design CDR PDR Critical Design Modi cations Fab & Assy Flight Operations RBS Prod CDR Design & Ops Fab & Assy Flight Operations FIGURE 5.1 Committee's proposed RBS development risk reduction phases. NOTE: AGN&C, adaptive guidance navigation and control; CDR, critical design review; Fab & Assay, fabrication and assembly; IVHM, integrated vehicle health management; PDR, preliminary design review; Prod & Ops, production and operations; and RB Demo, reusable booster demonstrator.
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From page 69... ...
If Pathfinder can demonstrate vehicle aerodynamic control and propellant control for engine feed during turnaround, that would partially retire Risk 1, and AG&C for flight control would partially reduce Risk 4. To reduce risk to the Pathfinder flight demonstration phase, the RBS development program should consider flying at least two competing concepts.
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From page 70... ...
Successful completion of this phase will fully retire Risk 2 and retire the engine part of Risk 5. 5.1.5 Reusable Booster Demonstrator Phase This phase starts once Pathfinder has successfully demonstrated rocketback turnaround, and continues in parallel with the ongoing new ORSC rocket engine development.
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From page 71... ...
NOTE: AGN&C, adaptive guidance navigation and control; CFD, computational fluid dynamics; IVHM, integrated vehicle health management. Figure 5-2 5.2.2 Change R02338 Philosophy vector The outstanding launch reliability records of both editable the Atlas and Delta EELVs have been achieved, in part, by each program institutionalizing a Continuous Improvement philosophy.
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From page 72... ...
Some will require immediate incorporation to maintain flight status, while others will await the block change for the first production booster. Once several production boosters have achieved flight status, the two Y-vehicles will be retrofitted to incorporate all the current design changes.
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From page 73... ...
To meet RBS rapid ground processing goals, a cultural change will be required. This will necessarily involve reevaluation of and significant revisions to the many launch readiness and range safety reviews currently required for expendable launch operations.
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From page 74... ...
5.3.4 Production Monitoring Approach With the current emphasis on cost, the potential exists for the current EELV production monitoring conducted by the Defense Contract Administration Services at United Launch Alliance's Decatur Manufacturing facility to become increasingly adversarial. Such a situation increases contractor costs, slows production, and results in demotivated production employees, which is not conducive to obtaining the highest quality launch vehicle hardware.
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From page 75... ...
is likely sufficient, and this can be re-analyzed as the program moves toward production. This retained production capability and reduced initial fleet size is intended as an example approach that would help reduce the initial investment while maintaining program strength and flexibility.
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From page 76... ...
The apparent program approach of single contractors may appear to be lower cost, especially in development, and therefore an easier "sell" for the initial investment, but it has far more technical and, in most cases, programmatic risk. It would be desirable for the RBS program to maintain competition as long as practicable to obtain and retain the "A-Team" from the contractors, foster innovation as each contractor strives to deliver the better product, sustain a larger industrial base for when reusable systems finally dominate the market, and achieve a lower life cycle cost.
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