Comment: |
Having left Mount Rainier, we proceeded to Bremerton National Airport (PTW). Our flight path took us over Tacoma Washington, and the Tacoma Narrows Bridge. This bridge is next to the site of an earlier bridge. When this previous bridge opened on 1 July 1940 it was the third longest suspension span in the world. Nicknamed "Galloping Gertie", it collapsed 7 November during a 42 mph windstorm. This collapse was captured on film and has been described as "the most dramatic failure in bridge engineering history". Subsequent analysis showed that the bridge acted as a wing in the wind blowing through the narrows. The associated lift forces caused it to oscillate violently and finally disintegrate. Its collapse revolutionized bridge design by demonstrating the need include aerodynamic considerations, to include wind tunnel testing. Julie was flying at 2,000 when this picture was taken. |
Image Date: |
Aug 11, 2007 - 03:45 PM |
Original: |
PICT2060ac.jpg
, 1.84 MB, 2800 x 2000
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Gallery: |
StHelens-Rainier_Flyby_Album |
Camera: |
MAXXUM 5D |
Settings: |
Focal len: 170 mm, Exposure: 1/100s, Aperature: F10.0 |
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