Air Plane

When Jack Knight takes off in his biplane from North Platte, Nebraska, in 1921, hundreds of people crowd the airstrip. Is Jack transporting a famous passenger? Is he ferrying medicine for a sick child? Nope—Jack has six sacks of mail. For the past few years, biplanes like Jack's have been flying the mail only during daylight hours. Flying after dark is risky and crashes are too common, so lawmakers decide to cut funding for the US Air Mail Service. Outraged officials and pilots want to prove that flying the mail is best, so they concoct a plan—a coast-to-coast race.

Hot air balloons are huge and colorful. They're lots of fun to watch. But how do they fly? And how do people control where the hot air balloon goes? Listen to this audiobook to find out!