Canard Pane鸭式飞机.docxVIP

CANARD PLANEAEROMODELLING CLUBSUMMER PROJECT 2012SCIENCE AND TECHNOLOGY COUNCIL , IIT KANPURBY-AYUSH JAINYASH MAHANOTANUBHAV BIMBISARIYEANAM SIDDIQUE AIMTO BUILD A RC CANARD PLANE.INTRODUCTIONA Canard Plane is an aircraft in which the forward surface is smaller than the rearward.The former wing is known as the Canard wing while the latter is called the Main?wing.However, a conventional aircraft has a main wing having a horizontal stabilizer attached at its rear end.Canard plane are of two types-1.LIFTING CANARD 2.CONTROL CANARDLIFTING CANARD* In this configuration, the weight of the aircraft is shared between the main wing and the canard wing.*It may be described as an extreme conventional configuration with the following features:A small highly-loaded wingThe c.g. significantly aft, at 500% chordA relatively large lifting tail to give enough stability with this extreme aft c.g* A lifting-canard generates an upload, in contrast to a conventional aft-tail which generates negative lift that must be counteracted by extra lift on the main wing*The canard lift appears to increase the overall lift capability of the configurationCONTROL CANARD*Incontrol-canard, most of the weight of the aircraft is carried by the main wing and the canard wing is used primarily for longitudinal control during manoeuvring. Thus, a control-canard mostly operates only as a control surface and is usually at zero angle of attack, carrying no aircraft weight in normal flight. Combat aircraft of canard configuration typically have a control-canard. In combat aircraft, the canard is usually driven by a computerized flight control system.*One benefit obtainable from a control-canard is avoidance of pitch-up. An all-moving canard capable of a significant nose-down deflection will protect against pitch-up. As a result, the aspect ratio and wing-sweep of the main wing can be optimized . PRACTICAL USE-*CANARD PLANE CAN ACT AS ACARRIER FOR OTHER PLANE AS IT CAN GENE