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NACA-CB-5B05
Computation of hinge-moment characteristics of horizontal tails from section data
Year: 1945
Abstract: A study of data from various wind-tunnel tests of horizontal tail surfaces was made to determine the accuracy with which section data can be used to estimate the hinge-moment characteristics of control surfaces of finite span. The study consisted of a comparison between the variation of elevator hinge moments with elevator deflection and with airplane pitching moment, as estimated from data obtained in two-dimensional flow, and that variation measured experimentally on 16 different horizontal tails mounted on wind-tunnel models of complete airplanes. The method used in applying section data to the evaluation of three-dimensional characteristics is outlined, and summary curves showing the variation of the major parameters with control-surface chord, balance chord, and trailing-edge angle are presented. It is demonstrated that the three-dimensional hinge-moment characteristics of tail surfaces can be derived from existing section data with an accuracy which is within the tolerance required in preliminary design.
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:19:36Z | |
| date available | 2017-09-04T15:19:36Z | |
| date copyright | 01/01/1945 | |
| date issued | 1945 | |
| identifier other | MTUYYDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/19441 | |
| description abstract | A study of data from various wind-tunnel tests of horizontal tail surfaces was made to determine the accuracy with which section data can be used to estimate the hinge-moment characteristics of control surfaces of finite span. The study consisted of a comparison between the variation of elevator hinge moments with elevator deflection and with airplane pitching moment, as estimated from data obtained in two-dimensional flow, and that variation measured experimentally on 16 different horizontal tails mounted on wind-tunnel models of complete airplanes. The method used in applying section data to the evaluation of three-dimensional characteristics is outlined, and summary curves showing the variation of the major parameters with control-surface chord, balance chord, and trailing-edge angle are presented. It is demonstrated that the three-dimensional hinge-moment characteristics of tail surfaces can be derived from existing section data with an accuracy which is within the tolerance required in preliminary design. | |
| language | English | |
| title | NACA-CB-5B05 | num |
| title | Computation of hinge-moment characteristics of horizontal tails from section data | en |
| type | standard | |
| page | 34 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1945 | |
| contenttype | fulltext |