Dual-purpose flight control surfaces, often referred to as combination control surfaces, are designed to serve multiple functions, such as both aileron and flap functions on some aircraft. Calculating their surface area would involve considering both functions and their geometric characteristics. Here’s a general formula, definition, and SI unit for the surface area of dual-purpose flight control surfaces:
- Surface Area of Dual-Purpose Flight Control Surfaces:
- Measure the length of the control surface (from the root to the tip).Measure the width of the control surface (perpendicular to its length).
- Calculate the surface area of the control surface using the formula:
- Multiply the surface area of one control surface by the total number of dual-purpose control surfaces on the aircraft to find the total surface area of these control surfaces