Editing SM-65 Atlas (section)

===Warhead===
The warhead of the Atlas D was originally the G.E. Mk 2 "heat sink" [[re-entry vehicle]] (RV)<ref>{{cite web |title=Missile, Reentry Vehicle, Mark 2 |url=https://www.si.edu/object/missile-reentry-vehicle-mark-2%3Anasm_A19751430000 |website=si.edu}}</ref> with a [[W49]] [[thermonuclear weapon]], combined weight {{convert|3700|lb|-1|abbr=on}} and yield of 1.44 [[TNT equivalent|megatons]] (Mt). The W49 was later placed in a Mk 3 ablative RV, combined weight {{convert|2420|lb|-1|abbr=on}}. The Atlas E and F had an AVCO Mk 4 RV containing a [[W38 (nuclear warhead)|W38]] [[thermonuclear weapon|thermonuclear warhead]] with a yield of 3.75&nbsp;Mt<ref>{{cite web |title=Missile, Reentry Vehicle, Mark 4 |url=https://airandspace.si.edu/collection-objects/missile-reentry-vehicle-mark-4/nasm_A19660029000 |website=airandspace.si.edu}}</ref> which was [[fuze]]d for either air burst or contact burst. The Mk 4 RV also deployed [[penetration aid]]s in the form of [[mylar]] balloons which replicated the radar signature of the Mk 4 RV. The Mk 4 plus W-38 had a combined weight of {{convert|4050|lb|-1|abbr=on}}. All of the warheads deployed in the Atlas were over 100 times more powerful than the [[Atomic bombings of Hiroshima and Nagasaki|bomb dropped over Nagasaki]] in 1945.<ref>{{cite web|title=Fairchild had a missile squadron… Who knew?|date=June 4, 2014|author=Jim O'Connell |url=https://www.fairchild.af.mil/News/Commentaries/Display/Article/496434/fairchild-had-a-missile-squadron-who-knew/
|website=U.S. Air Force|access-date=March 11, 2023}}</ref>