AOA Wind Tunnel Demonstration

The significance of angle of attack upon swept wing airfoils has been known for decades, as illustrated by a 1957 video from the National Advisory Committee for Aeronautics -- NASA's predecessor organization.

blog post photo

Watch the movement of the tufts of cloth fixed to the 40 degree swept wing. As the angle of attack increases steadily from 12.7 degrees, the tufts rise, indicating airflow separation and consequent loss of lift, beginning near the tips and progressing inward. These tests were conducted in the full-scale wind tunnel at the Langley Research Center in Virginia.

Please or Register to post comments.

What's Things With Wings?

Aviation Week's civil aviation blog

From The Archives

Aviation Week is approaching its 100th anniversary in 2016. In a series of blogs, our editors highlight editorial content from the magazine's long and rich history.

 

Jan 31, 2016
blog

Tupolev 104: Harsh Proof Of Rapid Soviet Progress (1956) 18

Since little detail was available of the Russian design and built Tupolev 104, a profile was compiled for Aviation Week, based entirely on observations from photographs, experts such as engineers knowledgeable in typical Russian aircraft design and of its landing at London Airport....More
Jan 28, 2016
blog

A Near View Of French Aviators (1917) 2

Some of the largest battles of the First World War were taking place in France when Aviation Week was first published....More
Blog Archive
Penton Corporate

Sponsored Introduction Continue on to (or wait seconds) ×