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Glider, nonpowered heavier-than-air craft capable of sustained flight.
Aeroplanes use the principles of aerodynamics to achieve sustained flight, and manned rockets are very big.
Other birds that practice sustained flight (e.g., hummingbirds) mainly have red breast muscles.
Wright flyer of 1903, first powered airplane to demonstrate sustained flight under the full control of the pilot.
Langley aerodrome No. 5, aircraft designed and built by Samuel Pierpont Langley in 1896, the first powered heavier-than-air machine to attain sustained flight.
For the first two weeks they are unable to catch their own food, and are not yet capable of sustained flight.
Similar(33)
And between some beautifully sustained flights of eloquence, there is the occasional passage that falls with an ear-bruising clunk.
The best Pilobolus works, with no loss of acrobatic wonder or pleasure as popular entertainment, are sustained flights of poetry and drama.
Supporters of the Wright brothers argue that proven, repeated, controlled, and sustained flights by the brothers entitle them to credit as inventors of the airplane, regardless of those techniques.
Being able to sustain flight in the atmosphere at such speeds would have many benefits.
That apparently reduces the power they require to sustain flight by an order of magnitude.
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