Figure 2.14 shows an extended speed brake. These brakes are manually or hydraulically operated flaps that project into the airstream. Generally, they extend from the sides of the aircraft. However, they can be located on the bottom centerline of the fuselage or on the wings' upper surfaces. The purpose of speed brakes is to retard an aircraft's speed. Such brakes are generally used on aerodynamically clean aircraft such as jets.
Figure 2.14. Speed Brakes.
Content Provider: U.S. Army
Publisher: SweetHaven Publishing Services
