Dave Dashaway, Air Champion, or Wizard Work in the Clouds - Roy Rockwood

Never was there a more clever young aviator than Dave Dashaway, and all up-to-date youths will be will surely wish to hear about about him. In this, the last volume of the Dave Dashaway adventure series, Dave, with the assistance of his loyal chum Hiram Dobbs, makes several daring trips, and then enters a contest for a big prize. An aviation tale thrilling in the extreme. Written by Weldon J. Cobb under the Stratemeyer Syndicate pseudonym "Roy Rockwood." (Summary from the original book jacket and Scott Danneker)