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# Transonic Dynamics Tunnel (TDT) Facility

The Transonic Dynamics Tunnel (TDT) is a closed-circuit, continuous flow, variable pressure wind tunnel. The TDT is dedicated to identifying and solving aeroelasticity issues confronting fixed-wing aircraft and helicopter and tiltrotor configurations.

                                Learn More About the Transonic Dynamics Tunnel  about Transonic Dynamics Tunnel (TDT) Facility

## Focus Areas and Capabilities

Learn more about the specifications and capabilities of this facility.

### Characteristics

The Transonic Dynamics Tunnel (TDT) is a closed-circuit, continuous-flow, variable-pressure wind tunnel capable of using either air or R-134a as a test medium.

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### Quick Facts

Rotary-wing tests at the TDT have investigated performance, loads, and stability characteristics, while fixed-wing flutter, buffet, and divergence have been scrutinized as well.

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### Data Acquisition

Particularly useful for flutter tests is a group of four bypass valves that connect the TDT test section area to the opposite leg of the wind tunnel circuit downstream of the fan motor.

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## Transonic Dynamics Tunnel (TDT) Gallery

10 Images

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## Contact Information

****Transonic Dynamics Tunnel****

Contact: Tony Olszewski (757) 864-7862

****NASA Langley Research Center****Hampton, VA 23681(757) 864-1000

          -  					Fact Sheet				 
          -  					AETC Transonic Facilities				 
          -  					AETC Ground Facilities				 

## Fact Sheet

The Transonic Dynamics Tunnel (TDT) is a closed-circuit, continuous-flow, variable-pressure wind tunnel capable of using either air or R-134a as a test medium.

The TDT is dedicated to identifying, understanding, and solving aeroelastic issues confronting fixed-wing aircraft, helicopter, and tiltrotor configurations. Rotary-wing tests at the TDT have investigated performance, loads, and stability characteristics, while fixed-wing flutter, buffet, and divergence have been scrutinized as well.
				Read the Transonic Dynamics Tunnel Fact Sheet                			

## AETC Transonic Facilities

NASA operates three Transonic Facilities. The National Transonic Facility, 11-Foot Transonic Unitary Plan Facility and the Transonic Dynamics Tunnel
				Learn More About AETC Transonic Facilities                			

## AETC Ground Facilities

AETC sets the strategic direction for NASA’s versatile and comprehensive portfolio of ground test aeronautics research capabilities.

Among these assets are subsonic, transonic, supersonic, and hypersonic wind tunnels and propulsion test facilities at Ames Research Center, Glenn Research Center, and Langley Research Center.
				Learn More About AETC Ground Facilities                			

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1 min read14- by 22-Foot Subsonic Tunnel CharacteristicsArticle										12 months ago									

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