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NACA-TN-1766
Wind-tunnel investigation of effects of tail length on the longitudinal and lateral stability characteristics of a single-propeller airplane model
Year: 1948
Abstract: An investigation has been made of a powered model of a single propeller low-wing airplane with three values of tail length and three horizontal tails to determine the effects of tail length and tail volume on the longitudinal and lateral stability.
The destabilizing shift in neutral pint caused by power increased with increasing tail length for either the condition of constant horizontal-tail length for either the condition of constant horizontal-tail volume or constant horizontal-tail area. For a given tail length, the destabilizing shift in neutral point caused by power increased with increasing tail area. The increase in directional stability caused by power became larger as the tail length was increased. The tendency toward rudder lock decreased as the tail length was increased in the positive yaw range but was practically unaffected by tail-length variations in the negative yaw range.
The destabilizing shift in neutral pint caused by power increased with increasing tail length for either the condition of constant horizontal-tail length for either the condition of constant horizontal-tail volume or constant horizontal-tail area. For a given tail length, the destabilizing shift in neutral point caused by power increased with increasing tail area. The increase in directional stability caused by power became larger as the tail length was increased. The tendency toward rudder lock decreased as the tail length was increased in the positive yaw range but was practically unaffected by tail-length variations in the negative yaw range.
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:27:43Z | |
| date available | 2017-09-04T16:27:43Z | |
| date copyright | 01/01/1948 | |
| date issued | 1948 | |
| identifier other | UDPTYDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/90821 | |
| description abstract | An investigation has been made of a powered model of a single propeller low-wing airplane with three values of tail length and three horizontal tails to determine the effects of tail length and tail volume on the longitudinal and lateral stability. The destabilizing shift in neutral pint caused by power increased with increasing tail length for either the condition of constant horizontal-tail length for either the condition of constant horizontal-tail volume or constant horizontal-tail area. For a given tail length, the destabilizing shift in neutral point caused by power increased with increasing tail area. The increase in directional stability caused by power became larger as the tail length was increased. The tendency toward rudder lock decreased as the tail length was increased in the positive yaw range but was practically unaffected by tail-length variations in the negative yaw range. | |
| language | English | |
| title | NACA-TN-1766 | num |
| title | Wind-tunnel investigation of effects of tail length on the longitudinal and lateral stability characteristics of a single-propeller airplane model | en |
| type | standard | |
| page | 110 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1948 | |
| contenttype | fulltext |