A recent article in Aerospace America claims that 'the average success ratio of the current U.S. stable of launch vehicles, including upper stages, is about 92 percent (without upper stages it is close to 95 percent). The 8 percent failure probability implies an expected loss of $12M per flight, not including the lost opportunity costs'. Since payload costs are likely to be much greater than launch costs and even more so for the new launch vehicles for the Advanced Launch Development Program (ALDP), the cost of rocket motor unreliability at the current 8 percent rate can run into billions of dollars if expected increases in demand are realized. At an 8 percent failure rate, it is extremely unlikely that failure will occur during the first few ground tests of a new system. At that time, most of the design, analysis and tooling costs of the program have not expended. Since most systems are expected to be used ten to a hundred or more times, the likelihood of one or more failures is very large, and it can be expected that the above losses will be realized in the future. This will occur unless the problems are addressed and remedied. Recent trends suggest the problem is not being addressed adequately.


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    Titel :

    Reliability of solid rocket motor cases and nozzles


    Beteiligte:


    Erscheinungsdatum :

    01.02.1993


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Evaluation of Solid Propellant Rocket Motor Nozzles and Cases

    S. P. Gualillo / D. L. Daigle | NTIS | 1966


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    The Optimum Design of Solid Rocket Motor Nozzles

    Fang, G. / Tang, Z. / Shun, Z. et al. | British Library Conference Proceedings | 1994


    Erosion in rocket motor nozzles

    Morton, M.De | Tema Archiv | 1977


    Update: Sustainable Carbonized Rayon for Solid Rocket Motor Nozzles

    Peake, S. / Ellis, R. / Broquere, B. et al. | British Library Conference Proceedings | 2006