{"id":41800,"date":"2007-02-11T17:07:59","date_gmt":"2007-02-11T09:07:59","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/orion-las-to-be-less-harrowing-than-apollo\/"},"modified":"2007-02-11T17:07:59","modified_gmt":"2007-02-11T09:07:59","slug":"orion-las-to-be-less-harrowing-than-apollo","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/orion-las-to-be-less-harrowing-than-apollo\/","title":{"rendered":"Orion LAS to be \u2018less harrowing\u2019 than Apollo"},"content":{"rendered":"<p>Marshall Space Flight Center (MSFC) and Langley Research Center (LaRC) engineers are fine-tuning the Orion Launch Abort System (LAS), with an aim of following in the footsteps of Apollo\u2019s system, but without the \u201chigh G jolt\u201d that a crew would have endured when fired free of a failing Saturn V.\n<\/p>\n<p>  The refinements include a pintle nozzle that will be able to alter the thrust of the abort motors, and smoothen the abort for those onboard. One of several advanced technologies that are being employed on the new system.<br \/>\n<font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"250\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=14333\" width=\"270\" align=\"left\" vspace=\"5\" border=\"0\/\"><\/font><em><font face=\"Arial\" size=\"2\">Huge amounts of&nbsp;VSE related insider news and presentations \u2013 THE most comprehensive place to follow Ares\/Orion&nbsp;development \u2013&nbsp;are&nbsp;<\/font><\/em><font face=\"Arial\" size=\"2\"><em>available for download on L2<\/em><\/font><font face=\"Arial\"><\/font><font size=\"2\"><em>. See list at the end of this article.<\/em><\/font><\/p>\n<p><font size=\"2\"><br \/>\n<\/font><\/p>\n<p><font size=\"2\"><\/font><em><font face=\"Arial\" size=\"2\">**ARES I \/ ORION LIVE UPDATE PAGES**<\/font><\/em><\/p>\n<p><em><font face=\"Arial\" size=\"2\">**ARES V \/ Mars Transport Vehicle (MTV) LIVE UPDATE PAGES**<\/font><\/em>  <\/p>\n<p><font face=\"Arial\" size=\"2\"><em>**Previous LAS Article**<\/em><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">The LAS consists of a protective cover that fits over the outer shell of the Orion crew module, an adapter cone and a forward mast assembly (tower). The mast assembly contains three solid rocket motors that handle abort and jettison operations and permit attitude control after separation, and control of the module\u2019s orientation.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Advanced technologies include an innovative reverseflow nozzle for the abort motor, \u2018a true departure from Apollo era designs,\u2019 noted MSFC\u2019s Stephen Gaddis, deputy manager of the LAS in the Marshall Star. \u2018The reverse-flow nozzle receives fuel injection from underneath, but exhaust gases are rotated 155 degrees to reverse their direction. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><\/p>\n<p>\u2018This prevents the abort motor from washing the capsule shield with flame as it fires. The reverse-flow nozzle also will cut the weight compared to the Apollo-era design.<\/p>\n<p><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018We\u00e2\u20ac\u2122re working as hard as possible to perfect a state-of-the-art system we hope NASA never needs to use.\u2019<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Despite the appearance of the system, the difference between its use on Ares\/Orion and Apollo will come via the advances in engineering and lessons learned from the Apollo era \u2013 while staying true to the role the old system carried out.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><\/p>\n<p>\u2018(The new LAS) will be less harrowing,\u2019 noted Gaddis. \u2018The Apollo (escape system) was a pretty rough ride, capable of pulling up to six G\u2019s in a matter of seconds, or six times standard Earth gravity. The new system will have an active control motor, which provides a much smoother ride and increases crew safety.<\/p>\n<p><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018We want to protect not just our crews\u2019 lives, but their long-term health and physical wellbeing as well.\u2019<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"126\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=17901\" width=\"176\" align=\"left\" vspace=\"5\" border=\"0\/\">Also, the Orion\u2019s LAS, in contrast to Apollo, will be able to cover more of the ascent trajectory, for use during a problematic ascent, as well as on the launch pad abort scenario.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">The Marshall team is also developing a pintle nozzle for the attitude control motor. This will allow the LAS to carry out an abort with a much smoother ejection from the failing vehicle, and the alignment for parachute deployment. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Now being tested by Aerojet Corp. of Sacramento, California, the pintle nozzle enables the system to automatically alter the motor\u2019s thrust pressure. This helps steady and align the module, prior to the point where the parachutes are fired out of their holders \u2013 minimizing jarring of the crew onboard. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">With the first Ares test set to take place in 2009 \u2013 although that may be delayed due to serious budget problems being suffered by NASA Constellation \u2013 the Ares I-1(R) test flight won\u2019t be the first major test conducted by engineers. That first test will be the live firing of the LAS at White Sands Missile Range in New Mexico in 2008.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" height=\"176\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=17899\" width=\"125\" align=\"left\" vspace=\"5\" border=\"0\/\">The test will be the conclusion of ground tests which are set to start in the spring, with the final element involving the LAS being stacked on top of a Minotaur launch vehicle, and\/or a collection of Peacekeeper rockets, before being fired as a launch pad abort, very much in the style of the Little Joe II tests prior to the Apollo missions.<\/p>\n<p><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018The Launch Abort System is scheduled to be the first element of the integrated Orion\/Ares I stack to test, and we\u00e2\u20ac\u2122ll be the first to fly,\u2019 added Gaddis.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">During evaluations, NASA engineers looked at three LAS systems, namely the Multiple External (x4) Service Module (SM) Abort Motor concept, the Crew Module Strap On Motors (x4) concept, and the In-Line Tandem Tractor (Tower) concept \u2013 which was baselined into Ares I\/Orion design.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><br \/>\n<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">The system, once tested and certified, is expected to be the template for all future NASA exploration launches, which could see the system being until the 2030s.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018I\u2019m confident the Launch Abort System will have a long-term impact on NASA\u2019s exploration mission,\u2019 added Daniel Schumacher, manager of the Exploration Flight Projects Office at MSFC. \u2018We\u2019re continuing to develop one of Marshall\u2019s core competencies \u2013 development of advanced solid rocket motors \u2013 that will support our exploration activities over the next 20 years.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><br \/>\n<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018The Launch Abort System development effort is critical to the overall Constellation Program, and it\u2019s a privilege to work on it.\u2019<\/font><\/p>\n<p><em><i>  <\/i><\/em><\/p>\n<p><em><i><\/p>\n<p><font face=\"Arial\"><\/font><font size=\"2\">L2 Resources For Ares I, V and Constellation: <br \/>DAC-1C Departure points to DAC-2 Upper Stage Graphcs (Many Changes). Orion\/CEV Display Layout Presentation (40 pages) \u2013 Feb 5. ATK figures on the 5-Seg Booster weight for CLV \u2013 Feb 2. Weather Shield (Rain Shield) for Orion on the pad \u2013 Feb 1. New Super hi-res images of Ares I \u2013 Feb 1. ATK Cutaway graphics of Ares I \u2013 perspective and axonometric \u2013 Feb 1. Ares I\/Orion CxP 72031 Requirements Validation Matrix Information. CEV Paracute Assembly System (CPAS) Presentation. <\/font><\/p>\n<p><font size=\"2\"><br \/>\n<\/font><\/p>\n<p><font size=\"2\"><\/font><font face=\"Arial\" size=\"2\">Orion Launch Abort System (LAS) overview presentation \u2013 Jan 16. Major changes to Ares I Upper Stage \u2013 expansive details and data. Ares I\/Orion CxP 72031 Requirements Validation Matrix Information. Saturn Twang Test Video for use with Ares I-1R. CLV Umbilical Trade Matrix XLS. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><\/p>\n<p>Vehicle interfaces for the DAC 1C version of Orion Ares \u2013 Jan 3. Ares I-1R Test Flight Plan (full outline) Presentation. Ares I-1 timeline and modification expanded info. Ares I troubleshooting latest. Ares I Reference Trajectory. Boeing\u2019s STS to Ares \u2013 Lessons Learned Presentation. Latest Ares I and Ares V baseline Configuration image and data. CLV DAC-1C (Changes to CLV Upper Stage). <\/p>\n<p><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Ares I-1: Four Seg+Dummy \u2018Tuna Can\u2019 stage. Ascent Developmental Flight Test Presentation. CLV Pad 39B Handover Info and Latest. New images of CLV on top of new MLP and LUT. Lockheed Martin CEV\/Orion Updates. Constellation news updates. ATK figures on the 5-Seg Booster weight for CLV. <br \/><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"101\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=13637\" width=\"180\" align=\"left\" vspace=\"5\" border=\"0\/\">90 Minute Video of Constellation all hands meeting. CLV TIM Meeting Information. CLV\/CaLV Infrastructure, Timelines and Information. Escape System Trade Study Presentation.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><br \/>\n<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">CEV-CLV Design Analysis Cycle Review (DAC-2) Presentation. Constellation SRR updates. CLV Stick \u2013 Troubleshooting\/Alternatives\/Updates. New CEV Images (include abort mode). Flight Design and Dynamics Division CEV update. CLV Mono-propellant RCS system. CEV pressurisation system review. CLV\/CEV Configuration Images. The 2\u00d73 Seg SRB Crew Launch Vehicle Option Presentation\u2026plus more.<\/font><\/p>\n<p><\/i><\/em><\/p>\n<p><em><i><\/i><\/em><em><\/em><\/p>\n<p><em><br \/>\n<\/em><\/p>\n<p><em><\/em><font face=\"Arial\" size=\"2\"><em><img loading=\"lazy\" decoding=\"async\" height=\"60\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=12993\" width=\"468\" align=\"left\" vspace=\"5\" border=\"0\/\"><\/em><\/font><\/p>\n<\/p>\n<p><font face=\"Arial\" size=\"2\"><em>**NASASpaceflight.com Job Opportunities**<\/em><\/font><font face=\"Arial\" size=\"2\"><em>&nbsp;<\/em><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><em><br \/>\n<\/em><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><em><\/em><\/font><font face=\"Arial\" size=\"2\"><em><img loading=\"lazy\" decoding=\"async\" height=\"60\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=7015\" width=\"468\" vspace=\"5\" border=\"0\/\"><\/em><\/font><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Marshall Space Flight Center (MSFC) and Langley Research Center (LaRC) engineers are fine-tuning the Orion Launch Abort System (LAS), with an aim of following in the footsteps of Apollo\u2019s system, but without the \u201chigh G jolt\u201d that a crew would have endured when fired free of a failing Saturn V. The refinements include a pintle [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[],"class_list":["post-41800","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41800"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=41800"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41800\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}