Most aircraft simulators are manufactured separately for each model because the structure and flight characteristic of each model is different. However, light aircrafts are somewhat similar in terms of form and struct...Most aircraft simulators are manufactured separately for each model because the structure and flight characteristic of each model is different. However, light aircrafts are somewhat similar in terms of form and structure. In addition, from the flight schools’ point of view, it is not economically beneficial to purchase and maintain light aircraft simulators for each different aircraft type. Globally, there are four types of light aircraft models that are most widely used for basic flight training. If all four models are separately selectable within a single flight simulator, there will be a lot of economic benefits in terms of reducing the purchasing costs as well as the reduction of pilot training costs. In this regard, this study aims at developing the multi-purpose variable-type simulator technology so that it can train four different aircraft types using only a single simulator. The utility of simulator is divided into the use of flight training and the use of leisure time. The flight characteristics are analyzed for each model type to emulate the actual aircraft. It is anticipated that the developed simulator can be produced at a lower cost while occupying less floor space and using less electric energy than the previous one.展开更多
hree kinds of devices of drag reduction are presented swept wingtip,stage by stage swept wingtip and downbend wingtip. The effects of changing geometryparameters of the swept wingtip on the drag reducing are also pres...hree kinds of devices of drag reduction are presented swept wingtip,stage by stage swept wingtip and downbend wingtip. The effects of changing geometryparameters of the swept wingtip on the drag reducing are also presented. Wind-tunnelexperiment results indicate that a properly designed swept wingtip results in an incre-ment in induced efficiency of 4%～ 7% and that swept wingtip can increase longitudinalstatic-stability. Water-tunnel experiment results indicate that the reason for drag re-ducing of swept wingtip is that when the angle of attack is not zero, the strong end vor-tex of the wing is weakened by the combined effect of the leading edge and trailing edgevortices of the swept wingtip.展开更多
In this article, the interference between canard and wing is discussed on the basis of wind-tunnel test, with a brief review of the development of aerodynamic configurations of AD-100 / 200 (two light canard aircraft ...In this article, the interference between canard and wing is discussed on the basis of wind-tunnel test, with a brief review of the development of aerodynamic configurations of AD-100 / 200 (two light canard aircraft designed by NAI) .The safety against stall of a canard is also discussed based upon flight test.The rule 'canard stall first'is introduced as an effective measure to improve safety against stall. It has been pointed out that the rule may threaten the flight safety at low-altitude. Finally,what a designer can do to remove the threat is presented.展开更多
文摘Most aircraft simulators are manufactured separately for each model because the structure and flight characteristic of each model is different. However, light aircrafts are somewhat similar in terms of form and structure. In addition, from the flight schools’ point of view, it is not economically beneficial to purchase and maintain light aircraft simulators for each different aircraft type. Globally, there are four types of light aircraft models that are most widely used for basic flight training. If all four models are separately selectable within a single flight simulator, there will be a lot of economic benefits in terms of reducing the purchasing costs as well as the reduction of pilot training costs. In this regard, this study aims at developing the multi-purpose variable-type simulator technology so that it can train four different aircraft types using only a single simulator. The utility of simulator is divided into the use of flight training and the use of leisure time. The flight characteristics are analyzed for each model type to emulate the actual aircraft. It is anticipated that the developed simulator can be produced at a lower cost while occupying less floor space and using less electric energy than the previous one.
文摘hree kinds of devices of drag reduction are presented swept wingtip,stage by stage swept wingtip and downbend wingtip. The effects of changing geometryparameters of the swept wingtip on the drag reducing are also presented. Wind-tunnelexperiment results indicate that a properly designed swept wingtip results in an incre-ment in induced efficiency of 4%～ 7% and that swept wingtip can increase longitudinalstatic-stability. Water-tunnel experiment results indicate that the reason for drag re-ducing of swept wingtip is that when the angle of attack is not zero, the strong end vor-tex of the wing is weakened by the combined effect of the leading edge and trailing edgevortices of the swept wingtip.
文摘In this article, the interference between canard and wing is discussed on the basis of wind-tunnel test, with a brief review of the development of aerodynamic configurations of AD-100 / 200 (two light canard aircraft designed by NAI) .The safety against stall of a canard is also discussed based upon flight test.The rule 'canard stall first'is introduced as an effective measure to improve safety against stall. It has been pointed out that the rule may threaten the flight safety at low-altitude. Finally,what a designer can do to remove the threat is presented.
