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A model for nocturnal frost formation on a wing section Aircraft takeoff performance penalties
| 题名： | A model for nocturnal frost formation on a wing section Aircraft takeoff performance penalties |
| 作者： | Dietenberger, M. A. |
| 关键词： | section；frost；forman；perform；turn；format；nalt；matio；model；take |
| 摘要： | The nocturnal frost formation on a wing section, to explain the hazard associated with frost during takeoff was investigated. A model of nocturnal frost formation on a wing section which predicts when the nocturnal frost will form and also its thickness and density as a function of time was developed. The aerodynamic penalities as related to the nocturnal frost formation properties were analyzed to determine how much the takeoff performance would be degraded by a specific frost layer. With an aircraft takeoff assuming equations representing a steady climbing flight, it is determined that a reduction in the maximum gross weight or a partial frost clearance and a reduction in the takeoff angle of attack is needed to neutralize drag and life penalities which are due to frost. Atmospheric conditions which produce the most hazardous frost buildup are determined. |
| 报告类型： | 科技报告 |
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