{"id":41533,"date":"2007-12-06T17:24:22","date_gmt":"2007-12-06T09:24:22","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/mlas-the-alternative-orion-launch-abort-system-gains-momentum\/"},"modified":"2007-12-06T17:24:22","modified_gmt":"2007-12-06T09:24:22","slug":"mlas-the-alternative-orion-launch-abort-system-gains-momentum","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/mlas-the-alternative-orion-launch-abort-system-gains-momentum\/","title":{"rendered":"MLAS \u2013 the alternative Orion Launch Abort System gains momentum"},"content":{"rendered":"<p>NASA is studying an alternative method of crew abort during the launch phase of Ares I, which has the apparent backing of NASA administrator Mike Griffin.\n<\/p>\n<p>  A multi-team\/inter-agency effort has been underway for some time on a project called MLAS (Max Launch Abort System) \u2013 which will begin fabrication within weeks, ahead of a pad abort test in September, 08.<br \/>\n<em><img fetchpriority=\"high\" decoding=\"async\" height=\"129\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=13910\" width=\"600\" align=\"left\" vspace=\"5\" border=\"0\/\"><\/em><\/p>\n<\/p>\n<p><em><font face=\"Arial\" size=\"2\">Huge amounts of VSE related insider news, presentations and videos \u2013 THE most comprehensive place to follow Ares\/Orion development \u2013 are <\/font><\/em><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>available for download on L2<\/em><\/font><font face=\"Arial\" size=\"2\"><em>. <\/em><\/font><em><font face=\"Arial\" size=\"2\">See list at the end of this article. <\/font><\/em><\/p>\n<p>All of this article is based on documented L2 information. For an overview of how L2 works, <font face=\"Arial\" color=\"#ff3300\" size=\"2\"><em>**click here for sample**<\/em><\/font><\/p>\n<p><em><font face=\"Arial\" color=\"#0000ff\" size=\"2\">**ARES I \/ ORION LIVE UPDATE PAGES**<\/font><\/em><\/p>\n<p><em><font face=\"Arial\" size=\"2\"><\/font><font color=\"#0000ff\">**ARES V \/ Mars LIVE UPDATE PAGES**<\/font><\/em><\/p>\n<p><font face=\"Arial\" size=\"2\"><\/font><\/p>\n<p>Spaceflight news subscription<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>Spaceflight<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>NASA mission patches<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>\n<p>     (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n<p><font face=\"Arial\"><\/font><font size=\"2\"><em><u>Article<\/u><\/em><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"169\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36783\" width=\"185\" align=\"left\" vspace=\"5\" border=\"0\/\">According to the MLAS Milestone Schedule, the MLAS study was kicked off back in June, with a roadmap planned out until 2009. Already, the conceptual design stage has been completed (DAC-0), with the preliminary design (DAC-1) to be completed by the end of the month. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">An Independent Technical Review was held on November 8, with trajectory simulations\/dispersion analyses also completed, plans for wind tunnel tests are upcoming, while d<\/font><font face=\"Arial\" size=\"2\">rogue reorientation chute sizing is underway.<\/font><\/p>\n<p>During last month\u2019s two-week Integrated Stack (IS) Technical Interchange Meeting (TIM), and subsequent Orion Tag-Up meetings, MLAS was listed on meeting notes \u2013 without explaining what it was \u2013 as \u2018the best way forward.\u2019 Now a presentation \u2013 acquired by L2 \u2013 has given a graphical overview of the system. <\/p>\n<p><font face=\"Arial\" size=\"2\">A quarterly review was carried out in November on the MLAS, a project sponsored by NASA\u2019s Exploration Systems Mission Directorate (ESMD) and led by NASA Engineering and Safety Center (NESC), tasked with the objective to \u2018demonstrate an alternate method to execute and control an abort of Orion Crew Module.\u2019 <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">The Max Launch Abort System (MLAS) is an evolution of two of the original three LAS concepts studied by Constellation. The MLAS concept combines the boost protection cover of the service module mounted escape system with the command module mounted motors. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"177\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=17473\" width=\"90\" align=\"left\" vspace=\"5\" border=\"0\/\">Grown out of the \u2018hand drawn sketch\u2019 by Mike Griffin, dated March 22, 2006, the new MLAS concept has been gaining momentum as a solution to issues relating to the traditional tower abort system. What issues exist with the current LAS are not specified.<\/font><\/p>\n<p>Back at the end of 2006, NASA engineers looked at three LAS options, 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 with the latter then baselined into Ares I\/Orion design.<\/p>\n<p>Favored \u2013 and still currently the baseline \u2013 the Tandem Tractor (Tower) LAS design comprises of a Nose Cone, Attitude Control Motor (Eight Nozzles), Canard Section (Stowed Configuration), Jettison Motor (Four Aft, Scarfed Nozzles), Interstage, Abort Motor (Four Exposed, Reverse Flow Nozzles), Adapter Cone, and Boost Protective Cover (BPC).<\/p>\n<p><font face=\"Arial\" size=\"2\">The MLAS utilizes the \u2018bullet\u2019 boost protection cover over the capsule to house the separation motors for the abort, as opposed to locating them on a tower above the capsule.&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" height=\"156\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36786\" width=\"198\" align=\"left\" vspace=\"5\" border=\"0\/\">The \u2018bullet\u2019 aerodynamic cover that houses four Mk 70 Terrier solid motors to power the abort. Two orientation parachutes are attached to the top of the fairing to re-orient the vehicle with the blunt heat shield into the wind and to aid in fairing separation. <\/p>\n<p><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">The vehicle will re-orient immediately after abort motor cut off on a pad abort, but will fly with its nose into the wind on a mid-altitude abort. The orientation parachutes will then activate quickly before the fairing separation. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">On a high altitude abort, the fairing will come off immediately to allow the Command Module Reaction Control System (RCS) to stabilize the vehicle for entry. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">The four piece fiberglass fairing will cover the Command Module to create a flush edge on the Ares I launcher. Fabrication of the test system will begin in January of 2008, in preparation for a pad abort test in September 2008.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"151\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36784\" width=\"182\" align=\"right\" vspace=\"5\" border=\"0\/\">The test will use a boilerplate Orion, and will be used to test an alternative landing parachute system \u2013 in addition to the abort test.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Listing \u2018MLAS\u2019 Significant Progress and Plans,\u2019 the presentation notes the system\u2019s preliminary layout is complete. \u2018Finite Element Analysis begun. Preliminary mass properties determined. Preliminary integration flow developed,\u2019 added the&nbsp;presentation, dated second half of November, 07.<\/font><\/p>\n<p>\u2018 Barge transport baselined for movement from PPF (Payload Processing Facility)&nbsp;to launch site. Preliminary launch hazard area being developed (drives launch pad selection and launch mount cant).\u2019<\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" style=\"WIDTH: 162px; HEIGHT: 113px\" height=\"146\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36785\" width=\"177\" align=\"left\" vspace=\"5\" border=\"0\/\">A preliminary MK-70 manifold design has been completed for a static fire, with CFD (Computation Fluid Dynamics), thermal, and igniter analysis underway. <\/font><\/p>\n<p>Wallops Flight Facility will manufacture the manifold and test stand, with MSFC (Marshall Space Flight Center) brought in to insulate the manifold.<\/p>\n<p><font face=\"Arial\"><\/font><font size=\"2\"><em>Selection of L2 Resources For Ares I, V and Constellation:&nbsp;<\/em><\/font><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" height=\"145\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36728\" width=\"173\" align=\"left\" vspace=\"5\" border=\"0\/\">MLAS Presentation and information. Latest Mobile Launcher details. Orion\/Ares I\/Delta IV Heavy<!--StartFragment -->&nbsp;NEO Feasibility Study (Video).<font face=\"Arial\"><\/font><font size=\"2\"><em>&nbsp;Constellation EVA Study Presentation. Superb Gene Kranz address to&nbsp;CxP&nbsp;workforce&nbsp;(Apollo to Orion feature) video. MOD \u2018LEO to Mars\u2019 presentations.<\/em><\/font><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" height=\"126\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36729\" width=\"141\" align=\"right\" vspace=\"5\" border=\"0\/\">Superb Ares I Launch Ascent, Pad&nbsp;Abort Test CGI Videos (three). Integrated Stack (IS) Technical Interchange Meeting (TIM) notes&nbsp;\u2013 Nov 6 to Nov 15. The full \u20188th Floor News\u2019 \u2013 Constellation Update (performance issues) \u2013 Nov 5. Ares I Mobile Launcher PMR.<\/p>\n<p><em>\u2018Proposed\u2019 Ares I SRBSF (Mini VAB) and graphic. LSAM (LDAC-1) Video and Images. Several Constellation All Hands Videos and Presentations. Ares I Pad Rollercoaster (Old and New presentation and slides \u2013 the very cool \u2018CGI ride on the Ares pad coaster\u2019 video. Ares I VAB \u2018In-Line\u2019 Stacking presentation slides.<\/em><\/p>\n<p><em><i><font face=\"Arial\"><\/font><font size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"267\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=19781\" width=\"150\" align=\"left\" vspace=\"5\" border=\"0\/\">Presentation of Ares\/Orion impacts relating to Shuttle manifest acceleration. Ares I Interstage diagrams. Ares V Super Crawler. Ares I Launch Pad images (ML etc.) Hi Res images of Ares I-X Upper Stage. Orion 606-7 Data Updates. Updates Constellation launch schedule through to Orion 15. Orion Seat test photos. New ML Graphic and info. New Ares V graphic and baseline data. Large collection of hi res Orion paracute drop tests. SIX Part Series of Ares I Upper Stage Graphical Overviews. DAC-1C DDD Vast Slides on Vehicle Design. ATK First Stage Presentation. 39B Lightning Towers Slides. DAC-1C Departure points to DAC-2 Upper Stage Graphcs (Many Changes). <\/font><\/i><\/em><\/p>\n<p>Orion\/CEV Display Layout Presentation (40 pages). ATK figures on the 5-Seg Booster weight for CLV. Weather Shield (Rain Shield) for Orion on the pad. New Super hi-res images of Ares I. ATK Cutaway graphics of Ares I \u2013 perspective and axonometric. Ares I\/Orion CxP 72031 Requirements Validation Matrix Information. CEV Paracute Assembly System (CPAS) Presentation. <\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"152\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36732\" width=\"162\" align=\"right\" vspace=\"5\" border=\"0\/\">Orion Launch Abort System (LAS) overview presentation. Changes to Ares I Upper Stage \u2013 expansive details and data. Ares I\/Orion CxP 72031 Requirements Validation Matrix Information. CLV Umbilical Trade Matrix XLS. Vehicle interfaces for the DAC 1C version of Orion Ares. Ares I-X Test Flight Plan (full outline) Presentation. Ares I-X timeline and modification expanded info. Ares I Reference Trajectory. Boeing\u2019s STS to Ares \u2013 Lessons Learned Presentation. CLV DAC-1C (Changes to CLV Upper Stage). <\/font><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" height=\"145\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=36731\" width=\"151\" align=\"left\" vspace=\"5\" border=\"0\/\">Ares I-X: 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. ATK figures on the 5-Seg Booster weight for CLV. <\/p>\n<p><font face=\"Arial\" size=\"2\">90 Minute Video of Constellation all hands meeting. Escape System Trade Study Presentation. CEV-CLV Design Analysis Cycle Review (DAC-2) Presentation. 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","protected":false},"excerpt":{"rendered":"<p>NASA is studying an alternative method of crew abort during the launch phase of Ares I, which has the apparent backing of NASA administrator Mike Griffin. A multi-team\/inter-agency effort has been underway for some time on a project called MLAS (Max Launch Abort System) \u2013 which will begin fabrication within weeks, ahead of a pad [&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-41533","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41533"}],"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=41533"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41533\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}