What is Vfe 1?

What is Vfe 1?

• A. 230
• B. 250
• C. 160
• D. 195

Answer: (A)

Vfe is the maximum speed you may fly with the wings’ flaps extended. Vfe 1 specifically is the maximum speed with the flaps in the first extended position. For the ERJ 175, that limit is 230 knots, so you must not exceed 230 knots when flaps are set to 1. This speed cap protects the flap mechanisms and airframe from excessive loads and ensures controllable handling with flaps deployed. As you retract flaps to a clean configuration, you can accelerate toward the airplane’s higher, clean-speed limits. The other numbers aren’t the published flap-1 speed for this aircraft, so they don’t describe the Vfe in the first extended position.

Vfe is the maximum speed you may fly with the wings’ flaps extended. Vfe 1 specifically is the maximum speed with the flaps in the first extended position. For the ERJ 175, that limit is 230 knots, so you must not exceed 230 knots when flaps are set to 1. This speed cap protects the flap mechanisms and airframe from excessive loads and ensures controllable handling with flaps deployed. As you retract flaps to a clean configuration, you can accelerate toward the airplane’s higher, clean-speed limits. The other numbers aren’t the published flap-1 speed for this aircraft, so they don’t describe the Vfe in the first extended position.