Editing SM-65 Atlas (section)

===SM-65B Atlas===
[[File:Atlas-B ICBM.jpg|thumbnail|Launch of an Atlas B ICBM.|150x150px]]
{{main | SM-65B Atlas }}
The '''Convair X-12'''/'''SM-65B''' was the second prototype version, introducing the [[stage and a half]] system that was a hallmark of the Atlas rocket program. This version was the first American rocket to achieve a flight distance that could be considered intercontinental when it flew {{convert|6325|mi|-1}}.<ref>{{cite web
 | title = Cape Canaveral Launch Chronology
 | url = https://www.spaceline.org/statistics/Cape_Canaveral_Launch_Chronology.html
 | website = Spaceline.org
 | access-date = Feb 27, 2021}}</ref>

The Atlas B was first flown on 19 July 1958. Of ten total flights, nine were [[sub-orbital]] test flights of the Atlas as an [[Intercontinental Ballistic Missile]], with five successful missions and four failures; the other flight placed the [[SCORE (satellite)|SCORE satellite]] into orbit. All launches were conducted from [[Cape Canaveral Air Force Station]], at Launch Complexes [[Cape Canaveral Air Force Station Launch Complex 11|11]], [[Cape Canaveral Air Force Station Launch Complex 13|13]] and [[Cape Canaveral Air Force Station Launch Complex 14|14]].<ref name="EA" />