EXPERIMENTAL INVESTIGATIONS OF GROUND-JET SUPPRESSION FENCES FOR VTOL AIRCRAFT PREPARED SITES

An experimental program was conducted to investigate the effectiveness of ground-jet suppression fences mounted on the periphery of a prepared pad for jet VTOL aircraft in order to reduce the effects of ground erosion and particle entrainment beyond the pad, and thereby reduce the pad size requireme...

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Bibliographische Detailangaben
Hauptverfasser:	Lavi, Rahim, Rogers, Kenneth H, Hall, Gordon R
Format:	Report
Sprache:	eng
Schlagworte:	BLAST CAPTIVE TESTS CONFIGURATIONS DOWNWASH EROSION EXHAUST GASES FEASIBILITY STUDIES FLOW FIELDS Fluid Mechanics GROUND EFFECT INGESTION(ENGINES) J-85 ENGINES JET FLOW LANDING MATS SAFETY EQUIPMENT SOILS Structural Engineering and Building Technology STRUCTURES SUPPRESSORS Terminal Flight Facilities TEST METHODS TURBOJET EXHAUST NOZZLES TURBOJET INLETS V/STOL VERTICAL TAKEOFF AIRCRAFT WALLS
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Beschreibung
Zusammenfassung:	An experimental program was conducted to investigate the effectiveness of ground-jet suppression fences mounted on the periphery of a prepared pad for jet VTOL aircraft in order to reduce the effects of ground erosion and particle entrainment beyond the pad, and thereby reduce the pad size requirement. Small-scale tests of a variety of fence configurations were made using single and dual nozzles. Large-scale tests of the better fence configurations were conducted with a model powered by as many as three J85 engines mounted vertically in a pod. (Author)