Boeing Phantom Works is ground-testing its X-48B unmanned blended wing body (BWB) demonstrators at NASA's Dryden Flight Research Center.
The two 228kg (500lb), 6.4m (21ft)-span vehicles will fly at speeds up to 120kt (220km/h) and altitudes up to 10,000ft (3,030m).
Blog:
Read Kieran Daly's view on how hopes for blended wing body aircraft could be killed off by studies showing air sickness more likely without windows
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Source: Flight International