Thinking Harder

Like Crashed US Airways Plane, Space Shuttle Has Had Bird Collision

By Ben Harder

Posted: January 15, 2009

Today's crash of a U.S. Airways jet into the Hudson River following the aircraft's collision with birds isn't the first or only problem flying machines have had with flying animals. In fact, NASA has been concerned for years about the possibility of a catastrophic post-launch collision of its shuttles with vultures that live in the area surrounding the launch site.

As I reported for National Geographic News in 2006:

During a launch [in 2005], Discovery's external fuel tank struck one of the birds a few seconds after takeoff. "There happened to be a group of three vultures flying over the vehicle, and we hit one of them," said Steve Payne, NASA's ground-based shuttle test director. Luckily, he said, "We weren't going very fast." The shuttle was still building up speed as it lifted off the launch pad, so the impact wasn't too intense. Also, the collision occurred on the side of the fuel tank opposite the shuttle, or orbiter, so the hapless bird fell away without striking the orbiter's fragile underbelly. "It could conceivably have done damage if it had come over the top side and hit the orbiter," Payne said. In 2003 a piece of foam insulation from the shuttle Columbia fell and fatally damaged the craft.

NASA has dealt with the problem by becoming vigilant about cleaning up the road kill that the vultures feed on. As my colleague Maura Judkis notes, some airports have used dogs or falcons to try to reduce the local population of birds. Since bird strikes typically occur at low altitude, and are therefore a problem primarily when aircraft (or spacecraft) are either taking off or landing, it is possible for authorities to focus on a limited geographical area when addressing the problem.

Engine shrouds

Hey, for the cost of a a few more tens of thousands per engine, a lightweight, strong heat resistant carbon composite aerodynamic shroud could be bolted to each engine to deflect birds in flight before they can enter and chew up the fan blades on turbo jet engines. The front spoiler on my car does the same thing - it deflects most large objects from penetrating the radiator. Same concept can be used on the space shuttle. Why haven't these genius engineers and scientist thought to use this simple solution? Because it's too simple so how could it possibly work, right? Let's find more complex and expensive ways that don't work until we crash another shuttle or jet plane filled with people.

Tony Lee of CA @ Mar 11, 2009 19:51:39 PM

I have been hit by a bird

Just walking down the street.

And no, the bird didn't go, AAAAAAAAAH! before it hit me.

But it did fly off, apparently none the worse for wear.

Probably a little embarrassed though.

Dave of NC @ Mar 07, 2009 07:56:32 AM

Canopy Testing

When I worked at McDonnell Douglas, we had chicken gun that was used to test aircraft windscreens by firing chickens into them. No, we didn't use live chickens, they were already dead. They were trimmed to a specific MIL-SPEC size too.

I understand that back in the 60's, they did ejection seat development using live pigs. They said after the first couple of tests, the rest of the pigs figured out they wanted no part of it and fought like crazy. Pigs in space!

John Galt of FL @ Feb 11, 2009 18:56:23 PM

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Thinking Harder

This blog is the public workshop of U.S. News writer and editor Ben Harder. In articles published in the magazine, he has covered a range of sciences, including medicine, human behavior, prehistory, and evolution. Here, he can explore those and other scientific fields more fully and more informally than is possible in print. He'll share whatever seems noteworthy or potentially useful, and he invites readers to do the same.

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On Feb. 24, 2008, Ben discussed the link between artificial light and cancer on WTOP radio. Listen to the interview at WTOP News. He again talked about light pollution on WTOP on March 22, exploring its environmental effects.

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