Achieving Space Shuttle ATO using the Five-Segment Booster (FSB)

Sauvageau, Donald; McCool, Alex

doi:10.2514/6.2001-3413

37th Joint Propulsion Conference and Exhibit 2001

DOI: 10.2514/6.2001-3413

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Achieving Space Shuttle ATO using the Five-Segment Booster (FSB)

Donald Sauvageau¹,

Alex McCool²

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Five Segment Booster (FSB) Abort to Orbit (ATO) Studies

Tobias

Sauvageau²,

Hines

et al. 2002

38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference &Amp;amp; Exhibit

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As a result of the potential afforded by the FSB as shown in the Phase A study, Boeing and ATK Thiokol Propulsion committed to expending some of their discretionary resources to mature the FSB concept to enhance its ability to achieve ATO from the launch pad.The purpose of this paper is to discuss the details of the enhancements achieved through the internally funded study conducted by Boeing and ATK Thiokol. To better understand the enhancements that were addressed as part of this follow-on study, some background on what was achieved in the Phase A study is appropriate. The basic FSB configuration is shown in Figure I. Notice the primary aspect of the FSB is the addition of a new center segment to provide the additional impulse.

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Five Segment Booster (FSB) Abort to Orbit (ATO) Studies

Tobias

Sauvageau²,

Hines

et al. 2002

38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference &Amp;amp; Exhibit

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Enhanced Large Solid Rocket Motor Understanding Through Performance Margin Testing - RSRM Five Segment Engineering Test Motor (ETM-3)

Huppi

Tobias²,

Seiler³

2003

39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

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The Five-Segment Engineering Test Motor (ETM-3) is an extended length reusable solid rocket motor (RSRM) intended to increase motor performance and internal environments above the current fou-segment RSRM flight motor. The principal purpose of ETM-3 is to provide a test article for RSRM component margin testing. As the RSRM and Space Shuttle in general continue to age, replacing obsolete materials becomes an ever-increasing issue. Having a five-segment motor that provides environments in excess of normal operation allows a mechanism to subject replacement materials to a more severe environment than experienced in flight. Additionally, ETM-3 offers a second design data point from which to develop and/or validate analytical models that currently have some level of empiricism associated with them. These enhanced models have the potential to further the understanding of RSRM motor performance and solid rocket motor (SRM) propulsion in general. Furthermore, these data could be leveraged to support a five-segment booster (FSB) development program should the Space Shuttle program choose to pursue this option for abort mode enhancements during the ascent phase. A tertiary goal of ETM-3 is to challenge both the ATK Thiokol Propulsion and NASA MSFC technical personnel through the design and analysis of a large solid rocket motor without the benefit of a well-established performance database such as the RSRM. The end result of this undertaking will be a more competent and experienced workforce for both organizations. Of particular interest are the motor design characteristics and the systems engineering approach used to conduct a complex yet successful large motor static test. These aspects of ETM-3 and more will be summarized.

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Achieving Shuttle ATO Using Five Segment Booster (FSB)

Sauvageau¹,

Ess²

2003

39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

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Achieving Space Shuttle ATO using the Five-Segment Booster (FSB)

Cited by 3 publications

References 0 publications

Five Segment Booster (FSB) Abort to Orbit (ATO) Studies

Five Segment Booster (FSB) Abort to Orbit (ATO) Studies

Enhanced Large Solid Rocket Motor Understanding Through Performance Margin Testing - RSRM Five Segment Engineering Test Motor (ETM-3)

Achieving Shuttle ATO Using Five Segment Booster (FSB)

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