dell30rb
Final Approach
if America is attacked, we might be saved by blimps. No, not state-of-the-art jet fighters that can fly well beyond the speed of sound. But blimps: lumbering, relatively jovial blimps—the manatees of aviation.
Within a year, a pair of souped-up $2.7 billion blimps (price includes R&D) will be floated 10,000 feet above the District of Columbia and act as a 340-mile-wide eye in the sky, detecting incoming missiles and the like.
The blimps, or aerostats as they are technically called, are 77 yards long, and have a range of 340 miles. They fly at 10,000 feet for 30 days at time.
http://www.nationaljournal.com/nati...they-re-here-to-stop-cruise-missiles-20130726
How are these things going to deal with storms? 10,000 feet is a pretty vulnerable altitude. What if a derecho comes sweeping through?