| NASA Center: |
Langley Research Center |
|---|
| Image # : |
L-1962-08937 |
|---|
| Date : |
11/16/1962
|
|---|
|
Title
Lockheed C-141 Model in TDT
Full Description
Lockheed C-141 model in the Transonic Dynamics Tunnel (TDT). By the late 1940s,
with the advent of relatively thin, flexible aircraft wings, the need was
recognized for testing dynamically and elastically scaled models of aircraft.
In 1954, NASA's predecessor agency, the National Advisory Committee on
Aeronautics (NACA), began converting the Langley 19-foot Pressure Tunnel for
dynamic testing of aircraft structures. The old circular test section was
reduced to 16 x 16 feet, and slotted walls were added for transonic operation.
The TDT was provided with special oscillator vanes upstream of the test section
to create controlled gusty air to simulate aircraft response to gusts. A model
support system was devised that freed the model to pitch and plunge as the wings
started oscillating in response to the fluctuating airstream. The TDT was
completed in 1959. It was the world's first aeroelastic testing tunnel.
Keywords
Lockheed C-141 Model Transonic Dynamics Tunnel Aeroelasticity Langley
Subject Category
Wind Tunnels-Interior,
Reference Numbers
- Center:
LARC
- Center Number:
L-1962-08937
- GRIN DataBase Number:
GPN-2000-001741
Source Information
- Creator/Photographer: NASA
- Original Source: DIGITAL
| Resolution | Format | Width
(Pixels) | Height
(Pixels) | Size
(KBytes) |
Thumbnail |
.jpg |
90 |
66 |
8 |
Small |
.jpg |
640 |
472 |
144 |
Medium |
.jpg |
1500 |
1107 |
647 |
Large |
.jpg |
3000 |
2213 |
2,389 |
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Updated October 31, 2002
• History Questions: NASA History Office
• Responsible NASA Official: Steve Garber
• Author: Michael Hahn. Editor: Dwayne A. Day
• Curator & Technical Questions: Erin Needham
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