Word: constant
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Dates: during 2000-2009
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...constant business updates, go to 24/7wallst.com...
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Unlike airliners, medical helicopters are unstable aircraft that require constant input from the pilot. They often land in remote desert canyons, on freeways and in muddy farmers' fields, places without precise approach paths, powerful weather-tracking systems or even lights. "In a medical helicopter, you're basically an on-demand taxi," says Blumen, who recently completed a study of 264 medical-helicopter accidents stretching back...