Custom glider

High-Efficiency Aerodynamic Glider Design

Role: Aerodynamics & Structural Design Engineer

Context: 2025 Aerospace Engineering Design Challenge

Team: 4-Member Collaborative Engineering Team

Executive Summary

Designed, simulated, and flight-tested a high-efficiency unpowered glider optimized for maximum lift-to-drag (L/D) ratios. The project involved an iterative design cycle—moving from initial airfoil and mathematical modeling to Finite Element Analysis (FEA) and physical prototyping—to achieve stable, long-endurance flight within strict weight and dimension constraints.

Key Technical Challenges

Center of Gravity (CoG) Calibration: Ensuring longitudinal stability without adding excessive "dead weight" to the nose, which would compromise the overall glide slope.
Structural Rigidity vs. Weight: Designing a wing spar capable of withstanding launch forces while remaining lightweight enough to maintain a low wing loading.

The Solution

1. Aerodynamic Modeling & Simulation

Stability Analysis: Calculated the static margin and neutral point to ensure the glider remained passively stable throughout its flight envelope.
Drag Reduction: Minimized interference drag by refining the wing-to-fuselage joints and optimizing the tail-plane's aspect ratio.

2. Structural Engineering

Material Selection: Utilized a combination of lightweight composites and cut balsa to achieve an optimal strength-to-weight ratio.
Manufacturing: Employed precision 3D-printed components for aerodynamic fairings to ensure the physical build matched the digital model within decent tolerances.

3. Flight Testing & Data Correlation

Iterative Testing: Conducted multiple test flights to gather real-world performance data.
Refinement: Adjusted the control surface trims and ballast based on flight telemetry, eventually achieving a significantly improved glide duration compared to the initial prototype.

Results & Impact

Efficiency Gains: Successfully achieved a glide ratio that exceeded the project’s initial target, placing the design among the top performers in the cohort.
Structural Integrity: The glider survived all test phases, including high-impact landings, validating the FEA predictions.
Documentation: Produced a comprehensive technical report detailing the mathematical proofs for the chosen aerodynamic configurations.

Technical Toolkit

Software: Excel (Aerodynamic Modeling), Python (FEA).
Manufacturing: 3D Printing (FDM), Precision Assembly.