Air Cavalry Regiments

1st Cavalry Regiment

• D Troop (Air), 1st Squadron 'Black Hawks' (23rd Infantry Division)
• D Troop (Air), 2nd Squadron (?)
• 7th Squadron (IV Corps)

4th Cavalry Regiment

• D Troop (Air), 1st Squadron : D Troop, 1/4th Air Cavalry 'Darkhorse' (1st Infantry Division)
• D Troop (Air), 3rd Squadron : D Troop, 3/4th Air Cavalry 'Centaurs', later F Troop (25th Infantry Division)
• F Troop (Air) - 4th Cavalry 'Centaurs'

5th Cavalry Regiment

• 3rd Squadron 'Black Knights' (also known as 'The Bastard Cav')
• D Troop, 3rd Squadron: D Troop 3/5th Air Cavalry(9th Infantry Division and 101st Airborne)

8th Cavalry Regiment

• F Troop (Air) : 'Blueghost' (official site of F Troop 8th Cav Vietnam Veterans Assn.)
• see also F Troop - 8th Air Cavalry 'Blueghost'

9th Cavalry Regiment

• 1st Squadron, : see under 1st Air Cavalry Division
• F Troop (Air)

10th Cavalry Regiment

• D Troop (Air), 1st Squadron (4th Infantry Division)
• H Troop (Air), activated April 1972 with personnel and equipment of 7/17th Cavalry Regiment

11th Armoured Cavalry Regiment

• Air Troop

16th Cavalry Regiment

• C Troop (Air) : C Troop, 16th Air Cavalry 'Darkhorse'

17th Cavalry Regiment

• 2nd Squadron : see under 101st Airborne Division (Airmobile)
• 3rd Squadron : 3/17th Air Cavalry 3/17th ACR Association (III Corps ; II Field Force, Vietnam)
• HH Troop, 3rd Squadron : HHT 3/17th Air Cavalry 'Red Horse'
• A Troop, 3rd Squadron : A Troop 3/17th Air Cavalry 'Silver Spurs'
• B Troop, 3rd Squadron : B Troop 3/17th  Air Cavalry 'Burning Stogies'
• C Troop, 3rd Squadron : C Troop 3/17th  Air Cavalry 'Charlie Horse'
• D Troop, 3rd Squadron : D Troop 3/17th  Air Cavalry 'Blue Tigers'
• E Troop, 3rd Squadron : 
• 7th Squadron : 7/17th Air Cavalry 'Ruthless Riders' (II Corps ; I Field Force, Vietnam)
  • B Troop, 7th Squadron :  'Ruthless Riders'
  • D Troop (Air), activated April 1972
  • H Troop (Air), in Vietnam Feb 1973 (also designated F Troop)