HELICOPTER DOWNWASH BLAST EFFECTS STUDY

reportActive / Technical Report | Accession Number: AD0452177 | Open PDF

Abstract:

Field tests were conducted with operational helicopters at Fort Rucker, Ala., and at the Waterways Experiment Station to determine downwash velocity profiles. In addition, tests utilizing scale-model rotor blades were made at the WES over wet and dry sands and a dry lean clay, and over a chemically stabilized soil, plastic-impregnated soils, and lightweight ground covers membranes to determine modelscale velocity profiles and air velocities at the ground surface required to dislodge and move particles of various types of soil, the size of soil area requiring protection for various VTOL aircraft, and the effectiveness of membranes and soil stabilization in preventing dust- cloud formation.

Author(s):
Leese, G. W.
Author Organization(s):
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
Descriptive Note:
Technical rept.
Supplementary Note:
DOI: 10.21236/AD0452177
Annotation:
Helicopter downwash blast effects study.
Pagination:
0049

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AEWES-TR-3-664
Monitor Series:
TRECOM
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control; JCA_1.2.5_Lessons Learned; JCA_1.2.7_Experimentation; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_6.4.1_Secure Information Exchange; JCA_6_Net Centric; JCA_1.2.3_Educating; JCA_5.3_Planning
Communities of Interest:
Air Platforms
Descriptor(s):
*HELICOPTERS, *DOWNWASH, VELOCITY, PARTICLE SIZE, DAMAGE, HAZARDS, TEST EQUIPMENT, DUST, EROSION, SOILS, CORRELATION TECHNIQUES, BLAST, TEST FACILITIES, VERTICAL TAKEOFF AIRCRAFT, PROTECTIVE COVERINGS
Field(s)/Group(s):
Helicopters, Fluid Mechanics
Report Date:
1964 Oct 01