【什么是失速用英语解释】In aviation, the term "stall" is often misunderstood. Many people think it means the engine stops or the plane crashes, but in reality, a stall refers to a condition where the airflow over the wing becomes disrupted, leading to a loss of lift. This can happen at any speed and in any attitude, not just when flying slowly.
Understanding what a stall is and how it occurs is crucial for pilots and aviation enthusiasts alike. Below is a summary of key points about stalls, followed by a detailed table explaining the concept.
Summary:
A stall is a flight condition where the angle of attack of an aircraft's wing exceeds its critical value, causing a sudden decrease in lift. It is not related to the engine failing or the aircraft falling out of the sky. Pilots are trained to recognize and recover from stalls to ensure safe flight operations. Stalls can occur in various flight phases, including takeoff, climb, cruise, and landing.
What is Stall? (In English)
| Term | Definition |
| Stall | A flight condition in which the airflow over the wing separates, leading to a significant loss of lift. |
| Angle of Attack | The angle between the wing's chord line and the relative wind. If this angle is too high, a stall can occur. |
| Critical Angle of Attack | The maximum angle of attack before airflow separation causes a stall. |
| Lift | The upward force that keeps the aircraft airborne. A stall results in a reduction of lift. |
| Recovery | The process of returning the aircraft to normal flight after a stall. This involves reducing the angle of attack and increasing airspeed. |
| Stall Warning | An audible or visual signal in the cockpit indicating that the aircraft is approaching a stall. |
| Stall Speed | The minimum speed at which an aircraft can maintain level flight without stalling. |
| Power-On vs. Power-Off Stall | A stall that occurs with the engine running (power-on) versus one that happens with the engine off (power-off). |
Key Takeaways:
- A stall is not about the engine failing.
- It’s caused by the angle of attack being too high.
- Pilots are trained to avoid and recover from stalls.
- Stalls can occur in many different flight situations.
- Understanding stall characteristics is essential for safe flying.
By understanding what a stall is and how to handle it, pilots can significantly improve their safety and control during flight.
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