Airplane Elevators, Ailerons, Rudder
| Objective: |
To familiarize the student with the operation of the primary control systems on an airplane so that he may better the effects of control movements. |
| Content: |
- Vertical Axis/Directional Stability
- Rudder controls yaw
- Prop slipstream increases effectivness
- V-Tail Design (Ruddervators)
- Susceptible to dutch roll
- Drag reduction minimal
- Longitudinal Axis/Lateral Stability
- Ailerons control roll
- Adverse yaw
- Differential Ailerons reduce adverse yaw
- Frise-type ailerons
- Reduce adverse yaw
- More effective at high angles of attack due to slot
- Can be designed to function differentially
- Coupled ailerons and rudder
- Lateral Axis/Longitudinal Stability
- Elevator
- Stabilator/Stabilizer
- Canard
- Canard configuration
- The Good
- More efficient
- Stall resistant (important!!)
- The Bad
- Stall resistant limitations may prevent main wing from reaching AOA of max lift (lost performance)
- Flaps adjust lift on main wing but not on canard
- Increased Efficiency with size and separation
- All of above control pitch
- Normal downward force
- T-Tail
- Elevator down spring
See PHAN C. 4 |
| Completion Standards: |
The lesson is complete when the instructor determines the student has proper knowledge of the elevator, ailerons, and rudder by giving an oral or written exam. |
Posted in CFI Lesson Plans |
