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- Q6794960 subject Q6510600.
- Q6794960 subject Q8261611.
- Q6794960 subject Q8266666.
- Q6794960 subject Q8784865.
- Q6794960 abstract "The Max Launch Abort System (MLAS) is a proposed alternative to the Max Faget-invented "tractor" Launch Escape System (LES) currently planned for use by NASA for its Orion spacecraft in the event an Ares I malfunction during launch requires an immediate abort.A "pad abort" flight test of the MLAS was performed at NASA's Wallops Flight Facility on July 8, 2009 just after 6:25 a.m. A primary test goal was the successful separation of a mock crew capsule from the abort system.Designed by NASA engineers and reported on the website nasaspaceflight.com on December 6, 2007, the proposed MLAS uses 4 existing Thiokol-Huntsville built solid-rocket motors (built in 1988) placed at 90° intervals within the Orion's bullet-shaped protective cover (fairing). The protective cover was originally designed to protect the Orion spacecraft from aerodynamic stresses during launch, and to provide an interface between the spacecraft's crew module with the LES.The MLAS is designed with the aim of reducing the height of the Orion/Ares I stack while also reducing weight and center-of-gravity issues of a traditional LES. The bullet-shaped MLAS is also expected to provide better aerodynamic qualities during the first two minutes of flight, reducing stresses when the vehicle encounters the "Max Q" regions of hypersonic flight. The MLAS is also expected to simplify production, as existing hardware would be employed.There are several drawbacks to MLAS. First, the bullet-shaped protective cover would have to be modified and reinforced to allow for the use of the solid-rocket motors, something not needed with the LES, which bolts atop of the LIDS docking ring assembly. Second, the necessity to fire multiple motors (LES uses one motor and multiple nozzles) simultaneously for an abort decreases the theoretical reliability of the launch abort system by introducing more failure modes.Like the existing LES, the MLAS would provide protection to the Orion spacecraft crew during the first 2½ minutes of flight, with the MLAS being jettisoned, along with the service module's fairing panels, after the solid-rocket first stage is jettisoned. If implemented, the Orion/Ares I stack would resemble the towerless Gemini-Titan stack used between 1965–66, in which ejection seats were used as the primary form of escape for the astronauts who flew on the ten Gemini missions.The MLAS concept was dropped with the transformation of the Crew Exploration Vehicle into the Orion Multi-Purpose Crew Vehicle, and the switch of the launch vehicle from Ares I (with its perennial underperformance) to Delta IV-Heavy or SLS.".
- Q6794960 thumbnail MLAS_components.jpg?width=300.
- Q6794960 wikiPageExternalLink mlas.html.
- Q6794960 wikiPageExternalLink ESN.
- Q6794960 wikiPageExternalLink HQ_M09-110_MLAS_June_22.html.
- Q6794960 wikiPageExternalLink image_feature_1406.html.
- Q6794960 wikiPageExternalLink www.nasaspaceflight.com.
- Q6794960 wikiPageExternalLink ?cid=5300.
- Q6794960 wikiPageExternalLink viewsr.html?pid=31486.
- Q6794960 wikiPageWikiLink Q1187238.
- Q6794960 wikiPageWikiLink Q1757575.
- Q6794960 wikiPageWikiLink Q182348.
- Q6794960 wikiPageWikiLink Q1872552.
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- Q6794960 wikiPageWikiLink Q23548.
- Q6794960 wikiPageWikiLink Q392348.
- Q6794960 wikiPageWikiLink Q4938353.
- Q6794960 wikiPageWikiLink Q623544.
- Q6794960 wikiPageWikiLink Q6510600.
- Q6794960 wikiPageWikiLink Q8261611.
- Q6794960 wikiPageWikiLink Q8266666.
- Q6794960 wikiPageWikiLink Q8784865.
- Q6794960 wikiPageWikiLink Q907773.
- Q6794960 wikiPageWikiLink Q923972.
- Q6794960 wikiPageWikiLink Q969345.
- Q6794960 comment "The Max Launch Abort System (MLAS) is a proposed alternative to the Max Faget-invented "tractor" Launch Escape System (LES) currently planned for use by NASA for its Orion spacecraft in the event an Ares I malfunction during launch requires an immediate abort.A "pad abort" flight test of the MLAS was performed at NASA's Wallops Flight Facility on July 8, 2009 just after 6:25 a.m.".
- Q6794960 label "Max Launch Abort System".
- Q6794960 depiction MLAS_components.jpg.