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NASA-TN-D-6531
Comparison of several methods for estimating low speed stability derivatives
Year: 1971
Abstract: Methods presented in five different publications have been used to estimate the low-speed stability derivatives of two unpowered airplane configurations. One configuration had unswept lifting surfaces, the other configuration was the D-558-II swept-wing research airplane. The results of the computations were compared with each other, with existing wind-tunnel data, and with flight-test data for the D-558-II configuration to assess the relative merits of the methods for estimating derivatives. The results of the study indicated that, in general, for low subsonic speeds, no one text appeared consistently better for estimating all derivatives.
Subject: AERODYNAMIC
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:34:14Z | |
| date available | 2017-09-04T15:34:14Z | |
| date copyright | 01/01/1971 | |
| date issued | 1971 | |
| identifier other | OLYKAEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/35966 | |
| description abstract | Methods presented in five different publications have been used to estimate the low-speed stability derivatives of two unpowered airplane configurations. One configuration had unswept lifting surfaces, the other configuration was the D-558-II swept-wing research airplane. The results of the computations were compared with each other, with existing wind-tunnel data, and with flight-test data for the D-558-II configuration to assess the relative merits of the methods for estimating derivatives. The results of the study indicated that, in general, for low subsonic speeds, no one text appeared consistently better for estimating all derivatives. | |
| language | English | |
| title | NASA-TN-D-6531 | num |
| title | Comparison of several methods for estimating low speed stability derivatives | en |
| type | standard | |
| page | 37 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1971 | |
| contenttype | fulltext | |
| subject keywords | AERODYNAMIC | |
| subject keywords | AIRCRAFT | |
| subject keywords | CHARACTERISTICS | |
| subject keywords | CONFIGURATIONS | |
| subject keywords | DERIVATIVES | |
| subject keywords | STABILITY | |
| subject keywords | SWEPT | |
| subject keywords | WINGS |