Accession Number:

AD0625908

Title:

PRELIMINARY DESIGN STUDY OF A FLAT PLATE REFLECTOR AND SUPPORT UNIT.

Descriptive Note:

Final rept. 1 Mar-15 Sep 65,

Corporate Author:

FAIRCHILD HILLER CORP FARMINGDALE N Y REPUBLIC AVIATION DIV

Personal Author(s):

Report Date:

1965-10-15

Pagination or Media Count:

138.0

Abstract:

Aerodynamic measurements are presented based on open field aerodynamic testing of a mesh surfaced, square shaped, flat plate reflector. Forces and moments were measured on the flat plate in an isolated condition and when located at various positions within an array of 24 similar flat plates and support units. All tests were conducted on open ground and data was recorded during prevailing wind conditions in the natural environment. The extraneous loads produced by the dynamics of the system were filtered by an averaging process over five data points for the steady state values. Array locations are shown to increase the isolated forces by a factor of 4 and the isolated moments by a factor of 50 percent due to the induction effects from adjacent plates. Preliminary design airloads and moments for full scale plates of a similar construction, forming a quadrant of the MultiPlate Antenna, are presented. Implications of the test results related to a full scale, four lobe, Multi-Plate Antenna are discussed. Author

Descriptors:

Subject Categories:

  • Electrical and Electronic Equipment
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE


View the full text of this report