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NACA-RM-A8C03
Low-speed investigation of a small triangular wing of aspect ratio 2.0. III - static stability with twin vertical fins
Year: 1948
Abstract: INTRODUCTION
Previous tests of a single vertical tall in combination with an approximately triangular wing (reference1, configurations 7 and 8) have shown marked losses in directional stability at high lift coefficients. Considerations of the flow about triangular wings at high lift coefficients (as discussed in references 2 and 3) indicated that vertical fins mounted outboard of the center line of the wing would possibly provide more desirable characteristics.
In order to check the merits of outboard vertical fins, a short investigation of twin vertical fins on a triangular wing was made in the Ames 7- by 10-foot wind tunnel. The characteristics of the model with fins mounted symmetrically about the wing-chord plane and fins mounted wholly above the wing-chord plane were investigated.
Previous tests of a single vertical tall in combination with an approximately triangular wing (reference1, configurations 7 and 8) have shown marked losses in directional stability at high lift coefficients. Considerations of the flow about triangular wings at high lift coefficients (as discussed in references 2 and 3) indicated that vertical fins mounted outboard of the center line of the wing would possibly provide more desirable characteristics.
In order to check the merits of outboard vertical fins, a short investigation of twin vertical fins on a triangular wing was made in the Ames 7- by 10-foot wind tunnel. The characteristics of the model with fins mounted symmetrically about the wing-chord plane and fins mounted wholly above the wing-chord plane were investigated.
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:17:22Z | |
| date available | 2017-09-04T18:17:22Z | |
| date copyright | 01/01/1948 | |
| date issued | 1948 | |
| identifier other | HPCTUDAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/200232 | |
| description abstract | INTRODUCTION Previous tests of a single vertical tall in combination with an approximately triangular wing (reference1, configurations 7 and 8) have shown marked losses in directional stability at high lift coefficients. Considerations of the flow about triangular wings at high lift coefficients (as discussed in references 2 and 3) indicated that vertical fins mounted outboard of the center line of the wing would possibly provide more desirable characteristics. In order to check the merits of outboard vertical fins, a short investigation of twin vertical fins on a triangular wing was made in the Ames 7- by 10-foot wind tunnel. The characteristics of the model with fins mounted symmetrically about the wing-chord plane and fins mounted wholly above the wing-chord plane were investigated. | |
| language | English | |
| title | NACA-RM-A8C03 | num |
| title | Low-speed investigation of a small triangular wing of aspect ratio 2.0. III - static stability with twin vertical fins | en |
| type | standard | |
| page | 13 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1948 | |
| contenttype | fulltext |