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.


Oct 8, 2015

The Case Of The Missing F-117 Parts (2001) 24

How AW&ST found out what had happened to the remains of a shot-down F-117....More
Sep 18, 2015

The U.S.-Russian Moon Landing That Never Happened (1963) 9

U.S. President John F. Kennedy is well known for the 1961 speech to Congress in which he made the Apollo program a national goal....More
Blog Archive
Penton Corporate

Sponsored Introduction Continue on to (or wait seconds) ×