Fixed-wing aircraft relies on forward motion to produce which two outcomes?

Fixed-wing aircraft relies on forward motion to produce which two outcomes?

• A. Lift and thrust
• B. Speed and lift
• C. Drag and speed
• D. Altitude and attitude

Answer: (B)

Forward motion through the air creates airspeed, and two outcomes come from that airspeed: lift and speed. Lift is the upward force produced by the wing as air flows over and under it; as airspeed increases, the dynamic pressure increases, so more lift is generated to support the aircraft in flight. At the same time, the forward motion gives the aircraft its speed through the air, which is simply how fast it is moving relative to the surrounding air. Thrust drives that forward motion, not produced by it, while drag opposes it, and altitude and attitude describe position and orientation rather than direct results of moving forward.

Forward motion through the air creates airspeed, and two outcomes come from that airspeed: lift and speed. Lift is the upward force produced by the wing as air flows over and under it; as airspeed increases, the dynamic pressure increases, so more lift is generated to support the aircraft in flight. At the same time, the forward motion gives the aircraft its speed through the air, which is simply how fast it is moving relative to the surrounding air. Thrust drives that forward motion, not produced by it, while drag opposes it, and altitude and attitude describe position and orientation rather than direct results of moving forward.