Editing Atlas II (section)

=== Payload fairing ===
Three fairing models were available for the Atlas II:<ref name=ppg />
* '''Medium''', with a diameter of {{convert|3.3|m|ft|abbr=on}}, a height of {{convert|10.4|m|ft|abbr=on}}, and a mass of {{convert|1,409|kg|lb|abbr=on}}
* '''Large''', with a diameter of {{convert|4.2|m|ft|abbr=on}}, a height of {{convert|12.2|m|ft|abbr=on}}, and a mass of {{convert|2,087|kg|lb|abbr=on}}
* '''Extended''', with a diameter of {{convert|4.2|m|ft|abbr=on}}, a height of {{convert|13.1|m|ft|abbr=on}}, and a mass of {{convert|2,255|kg|lb|abbr=on}}

The Medium variant was not commonly used for Atlas II but was often used in earlier Atlas rockets. The Large and Extended fairing options were also later used on the Atlas III and Atlas V rockets. For the Atlas V, these fairings were part of the 400-series of that rocket, and a further extended option ("Extra Extended") was available.<ref>{{cite web | url=https://www.ulalaunch.com/rockets/atlas-v | title=Atlas V }}</ref> The 4-meter Atlas fairing last flew in 2022.<ref>{{cite web | url=https://www.nasaspaceflight.com/2022/11/jpss-2-launch/ | title=last-4m | date=November 10, 2022 }}</ref>

Atlas II rockets flying with a Medium fairing could move the most payload to orbit, as that fairing was the lightest. Similarly, rockets with Large or Extended fairings suffered slight hits to their payload capacity.