WIND- TESTS OF A LOW-ASPECT-RATIO WING IN CLOSE PROXIMITY TO THE GROUND,
Abstract
Wind tunnel tests were conducted on a semispan wing model with an aspect ratio of 2 in simulated ground effect. The variation of aerodynamic coefficients with changes of angle of attack, surface camber, and trailing-edge clearance were measured. Improvements in lift/drag ratio due to ground proximity and due to end plates were determined. The lift/drag ratio of the model with end plates ranged in general between 30 and 40; without end plates, it was about half as large. The piching-moment data indicate that an additional stabilizing surface or artificial stability will be required. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1963
- Accession Number
- AD0413890
Entities
People
- Herbert E. White