Aerodynamic and Propulsion Test Unit (Arnold AFB, TN)

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Aerodynamic and Propulsion Test Unit
FaCET Test in the APTU
Country United States
Branch US Air Force
Role Test Facility
Nickname(s) APTU

AEDC Aerodynamic and Propulsion Test Unit (APTU) is a blowdown hypersonic wind tunnel driven by a combustion air heater (CAH).[1] The facility is owned by the United States Air Force and operated by Aerospace Testing Alliance.


The AEDC Aerodynamic and Propulsion Test Unit started out as a vitiated air heater (VAH) conducting over 275 experiments for the development of many different aerodynamic and aerothermal systems. Upgrades to the facility started in 2002 in order to provide ground-test capability for supersonic and hypersonic systems up to flight speeds of Mach 8.[citation needed]


The facility was designed to provide ground based simulations of supersonic and hypersonic flight conditions. The combustion air heater can provide total pressures from 200 psia to 2,800 psia (13.6 atm to 190.5 atm) and a total temperatures from 1,200°R to 4,700°R (667 K to 2,611 K). Five nozzles ranging from Mach 3.2 to Mach 7.1 are currently available.[2]

See also[edit]


  1. ^ "Archived copy". Archived from the original on 2010-07-31. Retrieved 2012-01-10. 
  2. ^

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