{"id":499,"date":"2022-11-30T19:45:46","date_gmt":"2022-11-30T19:45:46","guid":{"rendered":"https:\/\/public.ksc.nasa.gov\/kscsma\/?page_id=499"},"modified":"2023-02-24T15:46:33","modified_gmt":"2023-02-24T15:46:33","slug":"nasa-flight-termination-system-fts-design-requirements","status":"publish","type":"page","link":"https:\/\/public.ksc.nasa.gov\/kscsma\/nasa-flight-termination-system-fts-design-requirements\/","title":{"rendered":"NASA Flight Termination System (FTS) Design Requirements"},"content":{"rendered":"\n
<\/span>\"KSC
\n

NASA Flight Termination System (FTS) Design Requirements<\/h1><\/div>\n<\/div><\/div>\n\n\n\n

<\/p>\n\n\n\n

FTS Design<\/strong><\/h4>\n\n\n\n

– FTS must render each power stage and \/ or any other propulsion system, including any that are part of a payload, non-propulsive
– If flight analysis determines the public is not endangered, an FTS may not be required<\/p>\n\n\n\n

Good FTS Design Features include:<\/strong>
– Redundancy
– Physical separation of redundant strings
– Independence from other vehicle systems
– Inadvertent separation destruct system when solid rocket motors used
– Both engine shutdown and destruct capability on liquid fueled vehicles
– Feathers that allow complete and thorough (end-to-end) testing
Test Requirements for approval of FTS<\/strong>
– Component level: Qualification, acceptance and lot testing
– System level: Pre-launch confidence tests and end-to-end verification
– Typical components of an airbourne FTS<\/p>\n\n\n\n

\"FTS<\/figure>\n\n\n\n

FTS Ground Systems consist of redundant UHF transmitters capable of sending command destruct signals
FTS reliability goal: 0.999 @ 95% confidence
Considerations during design \u2013 all these directly influence Ec
Reliability<\/strong> \u2013 Hardware \/ software failure rates and redundancy | Propellants<\/strong> \u2013 Affects blast and toxic analyses and ground hazards | Trajectories<\/strong> \u2013 Affects \u201cat risk\u201d population | Range selection<\/strong> \u2013 Affects ground, sea and air hazard zones<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

FTS Design – FTS must render each power stage and \/ or any other propulsion system, including any that are part of a payload, non-propulsive– If flight analysis determines the public is not endangered, an FTS may not be required Good FTS Design Features include:– Redundancy– Physical separation of redundant strings– Independence from other vehicle […]<\/p>\n","protected":false},"author":42,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","_lmt_disableupdate":"","_lmt_disable":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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propulsion system, including any that are part of a payload, non-propulsive– If flight analysis determines the public is not endangered, an FTS may not be required Good FTS Design Features include:– Redundancy– Physical separation of redundant strings– Independence from other vehicle…","coauthors":[],"author_meta":{"author_link":"https:\/\/public.ksc.nasa.gov\/kscsma\/author\/jkalis\/","display_name":"Jenifer Kalis"},"relative_dates":{"created":"Posted 4 years ago","modified":"Updated 4 years ago"},"absolute_dates":{"created":"Posted on November 30, 2022","modified":"Updated on February 24, 2023"},"absolute_dates_time":{"created":"Posted on November 30, 2022 7:45 pm","modified":"Updated on February 24, 2023 3:46 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