Talk:Launch escape system

message: Although I could not find a online site with the same topic, my Dynamics teacher (Dr. C. Ray Wimberly http://www.uta.edu/ra/real/editprofile.php?pid=1194&onlyview=1 ) stated that the acceleration required for the crew to safely survive a catastrophic explosion would kill them anyway. Although the design team presented the problem to the higher ups, it was decided that the LES should be kept as a "public relations" measure to show the amount of safety precautions taken to help protect the astronauts. Has anybody heard anything similar or have any sources confirming or debunking this theory? 66.118.230.101 18:35, 11 June 2007 (UTC)
thread_title: Ineffectiveness of Launch escape systems (for Saturn V Apollo missions)

message: The Discovery Channel show "Apollo 11: The Untold Story" (possibly AKA "First on the Moon: The Untold Story") states that NASA knew, more than one year before the launch of Apollo 11, that the Apollo/Saturn LES could not save the crew if a catastrophic first stage failure occurred in the first 2.5 minutes of flight. The claim is that this is documented in a NASA memo that was partially displayed in the documentary. The document number shown is NASA-CR-95441, with what appears to be a title of "BREAKUP PROBLEMS" and with a date stamp of July 1968. I have searched for this document, including on the NASA technical reports site (http://naca.larc.nasa.gov/) but have not been able to find it.
 
I am uncertain as to the veracity of this claim given that I can't personally examine the source referenced. If anyone out there has access to this document I would personally appreciate it if it could be posted and linked to somewhere publicly. --LESJet (talk) 14:35, 5 October 2014 (UTC)
thread_title: Some more information

message: At what stage in launch does the LES disengage from the spacecraft if it is not needed for escape? -- RealGrouchy 00:12, 1 December 2007 (UTC)
thread_title:  ...and if it's not used? 

message: I wrote the stub article about Escape tower before discovering this page.  Maybe we should merge them, redirecting escape tower here and taking the photo and adding it, since it is a good one.
Does LES definately only refer to an escape version with an escape tower?
I leave to to those in the know to do as they see fit.
IceDragon64 (talk) 01:51, 3 May 2009 (UTC)
replies: text: Yes, but encyclopedias work on the concept not the name. We need to decide what the concept the article covers best, all launch escape systems, or escape tower-based systems. If you cover all launch escape systems then the article should probably cover the cable glide systems and so forth. I think right now it's about the towers only, so should be merged.- (User) Wolfkeeper (Talk) 10:58, 3 May 2009 (UTC)
thread_title:  Merge? 

message: They are planned to be used in Dragon, CST-100 and Dream Chaser.--Craigboy (talk) 03:45, 22 July 2010 (UTC)
thread_title:  Need to add info about "push" launch escape systems 

message: The article uses an LES, isn't a LES grammatically correct?
The an used is from the phonetic use of el-ee-es I think.
Rmvandijk (talk) 09:38, 2 April 2015 (UTC)
replies: text: It isn't commonly enough used to be pronounced as an acronym (compare this with LEM (later shortened to LM, but still pronounced as a word): Neil Armstrong: "I'm going to take my foot off the lem now.") I think most people would say l-e-s. I've never heard anyone refer to "the les". JustinTime55 (talk) 13:49, 7 April 2015 (UTC)
thread_title:  An LES or a LES 

message: Let's replace the image of a Dragon on this page with an image of the Dragon V2 pad abort that just happened this morning, now that it's been completed. --Kitch (Talk : Contrib) 14:04, 6 May 2015 (UTC)
thread_title:  Dragon V2 Pad Abort 

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thread_title:  External links modified (January 2018) 

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thread_title:  A Commons file used on this page has been nominated for deletion 

message: Why have all the successfull activations of Korolyov's N1/L3 Manned Lunar Launch Vehicle's Safety Asuurance System's (LES) for 3 of 4 failed launches not included, as they functioned flawlessly in all cases ? (one outstanding vehicle, 6L, had no LES due to dummy upper stages) Tito Jugoslavchenko (talk) 20:39, 10 August 2022 (UTC)
thread_title: Soviet N1/L3 LES not included in "Related Systems" ?