On September 9 of that year, Orville Wright kept the plane in the air for more than an hour, which was one of the War Department's requirements. The other requirements included carrying a passenger for at least 125 miles at a speed of 40 miles per hour, being steerable in all directions at all times, and landing without damage.
Sounds like an automobile; one that doesn't have to have a road.
Update: the latest DARPA drone that will fly for years at 60,000 feet and higher.
http://www.stripes.com/article.asp?section=104&article=64418
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