GLIDER BASICS Indian Institute of Technology （滑翔机印度科技学院的基础）.pdfVIP

GLIDER BASICS WHAT IS GLIDER ? A light engineless aircraft designed to glide after being towed aloft or launched from a catapult. 2 PARTS OF GLIDER A glider can be divided into three main parts: a)fuselage b)wing c)tail FUSELAGE  It can be defined as the main body of a glider  Comparing it with a conventional aircraft, the fuselage is the main structure that houses the flight crew, passengers, and cargo. Howsoever, in this case it is only a 2-D fuselage.  It is cambered and in the middle portion, we attach the wing around the position where the camber is maximum by either making a slot in the fuselage, or by dividing in two parts and then attaching SLOT MADE IN FUSELAGE WITHOUT SLOT  If we are breaking the wing in two parts then we have an advantage that we can give dihedral angle to the wing.  But typically for first time users, it is advisable to cut a slot into the fuselage and then attach the wing.  Since in this way the wing remains firmly attached and also since the model is of small size, dihedral is of little importance.(dihedral :explained in later slides)  The front part of the fuselage is called nose. It is rounded in shape to avoid drag and to ensure smooth flow. WING It is the most essential part of a plane. When air flows past it, due to the difference in curvature of its upper and lower parts lift is generated, which is responsible for balancing the weight of the plane, and the body can thus fly. BASIC TERMINOLOGY OF WING  Airfoil: Cross sectional shape of a wing  Leading Edge: Front edge of wing  Trailing Edge: Back edge of wing  Chord Line: Line connecting LE to TE  Camber line: A line joining the leading and trailing edges of an airfoil equidistant from the upper and lower surfaces . High camber found on slow flying high lift aircraft.  Cam