Editing HMX-1 (section)

{{morefootnotes|date=February 2024}}
{{Use American English|date=February 2024}}
{{Use dmy dates|date=February 2024}}
{{Infobox military unit
|unit_name= Marine Helicopter Squadron 1
|image= HMX-1 Insignia.svg
|image_size= 200px
|caption= HMX-1 insignia
|dates=1 December 1947 – present
|country= {{Flagu|United States}}
|allegiance= 
|branch= {{marines|United States}}
|type= Medium Helicopter Squadron
|role= VIP Transport<br/>Operational Testing and Evaluation
|size=
|command_structure= [[Headquarters Marine Corps]]
|current_commander= Colonel Bradley J. Harms
|garrison= [[Marine Corps Air Facility Quantico]]
|ceremonial_chief=
|colonel_of_the_regiment=
|nickname= "The Nighthawks", "Marine One"
|patron=
|motto= 
|colors='''[[Tail Code|n/a]]'''
|colors_label=Tail Code
|march=
|mascot=
|battles= 
|notable_commanders=[[Keith B. McCutcheon]]<br/>[[Edward C. Dyer]]
|anniversaries=
}}

'''Marine Helicopter Squadron One''' ('''HMX-1''') is a [[United States Marine Corps]] [[helicopter]] [[Squadron (aviation)|squadron]] responsible for the transportation of the [[President of the United States|president]] and [[Vice President of the United States|vice president]] of the United States, heads of state, [[United States Department of Defense|Department of Defense]] officials, and other [[Very important person|VIPs]] as directed by the Marine Corps and White House Military Office. A Marine helicopter with the president aboard uses the [[call sign]] "[[Marine One]]". Previously, HMX-1 was also tasked with operational test and evaluation (OT&E). This task was reassigned to VMX-1 in Yuma, Arizona; since the contract award of the new presidential helicopter in 2014 to Sikorsky Aircraft. However, HMX-1 has assumed the temporary role of OT&E for this platform, because of its unique nature and mission{{clarify|reason="Does 'its' refer to HMX-1 or the role? Referring to the 'unique nature' of HMX-1 seems odd; the uniqueness of the mission seems to provide a sufficient explanation for HMX-1's assuming the OT&E role|date=August 2019}}. The [[VH-92|VH-92A]] first flew in 2017 and became operational in 2024.
Nicknamed "Nighthawks", HMX-1 is headquartered at [[Marine Corps Air Facility Quantico]], [[Virginia]], and maintains detachments at [[Joint Base Anacostia–Bolling]] in [[Washington, D.C.]], and [[Joint Base Andrews Naval Air Facility]] in [[Maryland]].