Calculations that Orville and Wilbur made.
Credit - Wright State University
The blade was curved like a wing.
Propellers were carved by hand from spruce.
The 1903 engine in the Wright Flyer
The 1903 Wright Flyer engine.
An inside view of the engine.
The 1903 engine
The 1903 engine in the Wrights' shop.
Credit - Library of Congress
Wright brothers patent application.
Credit - Library of Congress Manuscript Division