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L. Deuschle, E. Kirchner, L. Obert, E. Aust, L. Stoll, N. Marr
This paper describes the operational concept of a High Altitude Long Endurance (HALE) system used to reestablish internet connectivity under disaster conditions over a large area. To identify the scope of the system, the causes for the internet outage are determined and researched. By identifying different natural disasters, high-level requirements for the operational system are derived in order to allow operations under the derived disaster conditions. Robustness is identified as the key property of the entire system and is to be achieved on every system level. After establishing the requirements, the airborne as well as the ground segment is designed. This includes the determination of the operating altitude of the HALE with respect to various influences, such as area coverage, flight performance, the jet stream as well as air traffic. The operational base is defined, including equipment and stock for operation under disaster conditions, such as a sufficient fuel supply and power generation capacity. A responsive operational procedure is proposed. The required number of personnel and qualifications as well as the time intervals for maintenance of the aircraft are determined. Based on these data, the response time of the system for continuous and time critical operation is determined. Costs for personnel, fuel, production and fixed expenses are approximated, based on the design mission. Within the scope of this paper, the performance of the system as well as the operational limits are analyzed and discussed. As a future outlook, applications aside from reestablishing internet connectivity are investigated. This preliminary system design was conducted as part of the 2023 DLR Design Challenge, a yearly competition among teams of students, organized by the German Center for Aerospace Research. The basis for this paper is the proposed Sentinel-system by the team of the DHBW Ravensburg. The operational aspects of the Sentinel system are the main focus of this paper and are further expanded upon.
Deutscher Luft- und Raumfahrtkongress 2023, Stuttgart
Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2023
21,0 x 29,7 cm, 10 Seiten
Stichworte zum Inhalt:
Conceptual Aircraft Design Securing Communication in Crises, DLR Design Challenge 2023
Deuschle, L.; Kirchner, E.; et al. (2023): Conceptual Operation and Cost Analysis of a High Altitude, Long Endurance Airborne System to provide Internet Service to Disaster Areas. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/610533. urn:nbn:de:101:1-2023112914010864669183.