| http://www.w3.org/ns/prov#value | - opter, a Franco-German-Spanish division of EADS. This ???dynamic stall??? is why helicopters are mostly limited to an airspeed of 180 knots (333km/h; 207mph) and have poor agility at such speeds.???All helicopters have more or less the same physical limits; it is frustrating to have such a limit and there is a need to fly faster,??? added Billig.
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