Question

The "elevons" are primary control surfaces that combine the functions of the following two components?

• A. Ailerons and Flaps
• B. Ailerons and Elevators
• C. Elevators and Rudders
• D. Flaps and Slats

Hint:

Aircraft control surfaces: \[ \boxed{ \begin{aligned} \text{Ailerons} &\rightarrow \text{Roll} \text{Elevators} &\rightarrow \text{Pitch} \text{Rudder} &\rightarrow \text{Yaw} \text{Elevons} &\rightarrow \text{Roll + Pitch} \end{aligned} } \]

Answer 1

The Correct Option is B

Step 1: Recall the purpose of elevons. Elevons are aircraft control surfaces used mainly in tailless aircraft such as delta-wing aircraft. They combine the functions of \[ \boxed{\text{Ailerons}} \] and \[ \boxed{\text{Elevators}}. \]

Step 2: State the functions of the combined control surfaces.
• Ailerons control the rolling motion of the aircraft.
• Elevators control the pitching motion of the aircraft. An elevon performs both these functions simultaneously. Therefore, \[ \boxed{\text{Elevons combine the functions of ailerons and elevators}.} \] Thus, \[ \boxed{(B)} \] is the correct answer.