The Influence of Wing Geometry Changes on Aircraft Gliding

This research delves into the influence of wing geometry, specifically aspect ratio (AR), on the gliding performance of model airplanes. A systematic experimental investigation was conducted to measure how changes in AR affect the lift-to-drag ratio (Cl/Cd), lift force, and drag force across a range of ARs from 0.444 to 2.25. The study utilized power-law regression analysis to establish functional relationships between AR and the aerodynamic forces involved. Findings from this analysis highlight a significant increase in Cl/Cd with an increase in AR, confirming theoretical predictions that suggest reduced drag at higher aspect ratios. Additionally, a complex interplay between lift and drag forces was observed, providing new insights into wing design for optimizing model airplane performance. The empirical models developed here offer a robust tool for predicting aerodynamic outcomes, which can inform future model airplane designs as well as educational projects in aeronautics. Insights gained also lay groundwork for potential extrapolations to full-sized aircraft in efforts to enhance aerodynamic efficiency and performance.