Engines in the power range up to 100 hp were studied for application into small propeller-driven remotely piloted vehicles (RPVs). From an inventory of existing engines, it is found that a number of two- and four-stroke piston engines in this power class are available, but most of them will not fulfill the requirements for RPV-applications with respect to reliability, quality control, noise, vibrations, etc. Up till now no other types of shaft-power engines are available for application to small RPVs, although turboshaft engines and possibly also electrically-driven propellers might offer advantages for some missions. For payloads between 10 and 50 kg and flight endurances of up to 3 hours, some parametric calculations are presented for fixed-wing and rotary-wing vehicles to illustrate vehicle sizes and engine power requirements. Some recommendations are given for the future development of piston- and turbo-shaft engines suitable for propeller-driven RPVs, emphasizing the need for Demonstrator Engine Programs. Data on actual and projected engines and some typical specifications are added in appendici. (ERA citation 03:040943)


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    Titel :

    Engines for Small Propeller-Driven RPVs. Report of Sub-Group A of AGARD Working Group on Propulsion and Power Supplies for Unmanned Vehicles


    Erscheinungsdatum :

    1977


    Format / Umfang :

    105 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch