This is made possible by an active articulated torsional drive unit, which in combination with a complex control system attains an unprecedented level of efficiency in flight operation.

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That, and improving efficiency really made human powered-flight move from sustained hops and skips to the international crossings of the Albatross.

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As an individual, when I look to choose my flight I am looking for the whole package: efficiency, value, convenience, and service.

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