Popis: |
Weight, aerodynamic profile, and strength are considered in the design of a terrestrial drive train for a small air vehicle. Several drive trains were developed and their performance characteristics compared in order to show a progression in their designs. Each iteration contained minor improvements, approaching the goal of a durable terrestrial drive train for a small air vehicle. These drive trains were analyzed in the Case Western Reserve University low-speed wind tunnel for their influence on the performance of the aircraft. The change in lift produced by the aircraft’s airfoil ranges from -1.0% to -4.5%. The drive trains were also tested for their ability to withstand the shock and reduce the impact of landing. Spring steel wire wheel-legs are found to reduce the peak deceleration by 15.8%. The results identify one drive train that meets the performance goals and is suitable for general use in this scale application. |