1. What is Elevator Deflection Angle?

The Elevator Deflection Angle is the angle made by the elevator of an aircraft with the horizontal for an applied stick force. It determines the aircraft's pitch attitude and is crucial for controlling the aircraft's climb and descent.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \delta_e \) — Elevator Deflection Angle (rad)
• \( G \) — Gearing Ratio (1/m)
• \( l_s \) — Stick Length (m)
• \( \delta_s \) — Stick Deflection Angle (rad)

Explanation: The formula calculates the elevator deflection based on the mechanical advantage provided by the control system and the input from the pilot's control stick.

3. Importance of Elevator Deflection Calculation

Details: Accurate calculation of elevator deflection is essential for aircraft control system design, flight stability analysis, and ensuring proper response to pilot inputs during flight operations.

4. Using the Calculator

Tips: Enter gearing ratio in 1/m, stick length in meters, and stick deflection angle in radians. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is gearing ratio in aircraft control systems?
A: Gearing ratio is a measure of the mechanical advantage provided by the control system of an aircraft, relating stick movement to control surface deflection.

Q2: Why is stick length important in this calculation?
A: Stick length affects the mechanical advantage and the amount of control surface deflection achieved for a given stick movement.

Q3: What are typical values for elevator deflection angles?
A: Typical elevator deflection angles range from ±15 to ±30 degrees, depending on the aircraft type and design requirements.

Q4: How does this relate to aircraft pitch control?
A: The elevator deflection angle directly controls the aircraft's pitch attitude, affecting climb rate, descent rate, and overall flight path.

Q5: Are there limitations to this formula?
A: This formula provides a basic mechanical relationship and may need to be adjusted for specific aircraft configurations, control system friction, or aerodynamic effects.