Accession Number:

AD0749010

Title:

Effects of Canopy Geometry on the Spinning Characteristics of a Cross Parachute with a W/L RATIO of 0.264

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1972-06-20

Pagination or Media Count:

49.0

Abstract:

The effects of cloth permeability, number of suspension lines, suspension line length, and hem configuration on the spinning characteristics and aerodynamic drag force of the cross parachute were investigated in a wind tunnel. Forty-inch-diameter models with a canopy arm width-to-length ratio WL of 0.264 were tested at various velocities from 50 feet per second to 300 feet per second. Tests were conducted with a conventional cross parachute and with modifications to the skirt hem which represented an interpanel cord and a band of cloth. The width of the cloth band was ten percent of the canopy diameter.

Subject Categories:

  • Gliders and Parachutes
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE