Accession Number:

AD0731564

Title:

Parafoil Wind Tunnel Tests

Descriptive Note:

Final rept.

Corporate Author:

NOTRE DAME UNIV IN DEPT OF AEROSPACE AND MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

1971-06-01

Pagination or Media Count:

206.0

Abstract:

Extensive parafoil wind tunnel tests were carried out. Parafoil model sizes ranged from .09 sq ft to 147 sq ft and parafoil aspect ratios ranged from .5 to 3.0. The wind tunnel test velocities ranged from approximately 20 ft per second to over 60 ft per second. The aerodynamic stability coefficients were measured. The parafoil remained self inflated and rigid over a range of angle from -10 to 80 deg and revealed no stall characteristics Maximum lift coefficients from 0.751 to 1.005 were measured for parafoils of different aspect ratio. Maximum lift to drag ratios ranging from 1.83 to 6.40 were measured for the various parafoil designs. The various wind tunnel tests confirm both the static and the dynamic stability of the parafoil in pitch yaw, and roll. The results of these investigations are consolidated in the report by summary plots and special presentations.

Subject Categories:

  • Gliders and Parachutes

Distribution Statement:

APPROVED FOR PUBLIC RELEASE