| Summary: | Numerous attempts have been made to extend the endurance of small unmanned aerial vehicles (UAVs) by improving their propulsion system. However, due to their non-linear setup, no study has been conducted on small electric UAVs’ architecture framework. This study established a novel propulsion system framework model by analyzing 42 existing UAV electric propulsion systems. The proposed framework-based complicated model includes a new torque factor used to determine the operating current and voltage of the system. This innovative approach improved the model accuracy for the non-linear behavioral nature-based electrical and mechanical systems. The findings include a reduced electrical current usage of up to 84% and an average reduction of 26%. In addition, the investigation also found that the durability of the propulsion systems improved by 53% on average. Similarly, improvements in the trust-to-weight ratio were also established. As a result, a method of propeller matching is presented to facilitate the broad implementation of the proposed framework. The performance of the existing propulsion system was enhanced by using the proposed framework.
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