What is the Vfe FULL value?

What is the Vfe FULL value?

• A. 165 knots
• B. 180 knots
• C. 200 knots
• D. 215 knots

Answer: (A)

Vfe FULL is the maximum speed you may fly with the wings’ flaps fully extended. When flaps are completely down for landing, the wing experiences more lift but also more drag and greater structural and control loads. To keep the flap system and wing safe and to maintain controllability, the airplane is limited to a lower speed in this configuration. For the ERJ 175, that limit is 165 knots, so you must not exceed 165 knots when the flaps are fully extended. The other speeds you see in practice correspond to other flap settings and would be higher because less flap deflection reduces loads and drag, but they don’t apply when the flaps are in the FULL position.

Vfe FULL is the maximum speed you may fly with the wings’ flaps fully extended. When flaps are completely down for landing, the wing experiences more lift but also more drag and greater structural and control loads. To keep the flap system and wing safe and to maintain controllability, the airplane is limited to a lower speed in this configuration. For the ERJ 175, that limit is 165 knots, so you must not exceed 165 knots when the flaps are fully extended. The other speeds you see in practice correspond to other flap settings and would be higher because less flap deflection reduces loads and drag, but they don’t apply when the flaps are in the FULL position.