Small planes like this Cessna 172 often still use fixed-pitch propellers.

U.S. Centennial of Flight Commission home page

Small planes like this Cessna 172 often still use fixed-pitch propellers.

Small planes like this Cessna 172 often still use fixed-pitch propellers.

Credits - NASA

Home | About Us | Calendar | Wright Brothers History | History of Flight | Sights & Sounds | Licensed Products | Education | Links | Sitemap