The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability
The static efficiency of a propeller cannot be determined in the same way as for propellers operating in the presence of freestream airflow. As various kinds of multirotor drones and small UAVs operate in hovering or nearly hovering modes, it is necessary to develop methods for determining and measu...
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MDPI AG
2025-03-01
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| Series: | Engineering Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4591/90/1/89 |
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| author | Jaan Susi Karl-Eerik Unt Siim Heering |
| author_facet | Jaan Susi Karl-Eerik Unt Siim Heering |
| author_sort | Jaan Susi |
| collection | DOAJ |
| description | The static efficiency of a propeller cannot be determined in the same way as for propellers operating in the presence of freestream airflow. As various kinds of multirotor drones and small UAVs operate in hovering or nearly hovering modes, it is necessary to develop methods for determining and measuring the static aerodynamic efficiency of small-scale propellers. Propellers with a Reynolds number near the 0.75 R, where the blade section is less than 500,000, are considered to be at a critical value, i.e., the estimated border between two flow modes—laminar and turbulent. The efficiency of small-scale propellers may be hard to predict through modeling, making direct empirical measurements invaluable in this situation. |
| format | Article |
| id | doaj-art-e323339cd50e443b9b964a4fd98a4e33 |
| institution | Kabale University |
| issn | 2673-4591 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Engineering Proceedings |
| spelling | doaj-art-e323339cd50e443b9b964a4fd98a4e332025-08-20T03:27:10ZengMDPI AGEngineering Proceedings2673-45912025-03-019018910.3390/engproc2025090089The Efficiency of Drone Propellers—A Relevant Step Towards SustainabilityJaan Susi0Karl-Eerik Unt1Siim Heering2Department of Aeronautical Engineering, Estonian Aviation Academy, Lennu 40, Reola, 61707 Kambja Parish, Tartu County, EstoniaDepartment of Aeronautical Engineering, Estonian Aviation Academy, Lennu 40, Reola, 61707 Kambja Parish, Tartu County, EstoniaDepartment of Aeronautical Engineering, Estonian Aviation Academy, Lennu 40, Reola, 61707 Kambja Parish, Tartu County, EstoniaThe static efficiency of a propeller cannot be determined in the same way as for propellers operating in the presence of freestream airflow. As various kinds of multirotor drones and small UAVs operate in hovering or nearly hovering modes, it is necessary to develop methods for determining and measuring the static aerodynamic efficiency of small-scale propellers. Propellers with a Reynolds number near the 0.75 R, where the blade section is less than 500,000, are considered to be at a critical value, i.e., the estimated border between two flow modes—laminar and turbulent. The efficiency of small-scale propellers may be hard to predict through modeling, making direct empirical measurements invaluable in this situation.https://www.mdpi.com/2673-4591/90/1/89propeller efficiencyapplied aerodynamicssmall-scale propellersmultirotors |
| spellingShingle | Jaan Susi Karl-Eerik Unt Siim Heering The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability Engineering Proceedings propeller efficiency applied aerodynamics small-scale propellers multirotors |
| title | The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability |
| title_full | The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability |
| title_fullStr | The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability |
| title_full_unstemmed | The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability |
| title_short | The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability |
| title_sort | efficiency of drone propellers a relevant step towards sustainability |
| topic | propeller efficiency applied aerodynamics small-scale propellers multirotors |
| url | https://www.mdpi.com/2673-4591/90/1/89 |
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