Flashy New Jetpack Is "Widow Maker," Competitors Say
The Martin Jetpack, like the three big rocket belts before it, took off this month in a surge of buzz and headlines. Now other pioneering rocketeers are speaking out for the first time, going so far as to call the new device a "widow maker." Could the new battle finally spell takeoff for this futuristic industry—or just more prolonged promise?
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