British engineering (a)   , Henry Kremer, offered a prize for the first human-powered flight.

He owned a boat-building company that had (a)   debts totaling $90,000

He hoped to use the money to (a)   his debt

He was also motivated by the challenge, as entering a contest is (a)   a plan for earning money.

To power the aircraft, Allen would have the (a)   task of pedaling with four times the amount of force needed to pedal a bicycle.

Mylar, a thin, light plastic, gave the aircraft a (a)   lightness and fragility, inspiring its name, the Gossamer Condor

Allen made some preliminary flights and then, on August 23, 1977, made the official attempt. By 7:30 a.m. the wind was nothing more than a (a)   .

when the aircraft landed, (a)   broke loose among the spectators.

Albatross was the second aircraft they made, and it means difficulty. It was a (a)   because all went well as the frail craft headed for France

Accompanied by a (a)   of fifteen boats filled with spectators, Allen flew the Albatross.

But after two and a half hours, with the French coast in sight, it appeared that the last (a)   of Allen’s strength was leaving him

His (a)   was the virtue he needed to succeed.