Mass Model• Objective:Center of Gravity of the aircraft is related to the stability condition of the aircraft.Moment of inertias will be needed for the calculation of the stability derivatives.
Mass Model• Two methods of calculations:The first method (using CAD software)The second technique (Manual calculations)
Mass Model• Firstly we will define the Axis system we used:We took the center of the general Axis at the leading edge of the airfoil cross section of the wing’s root.The +ve Z direction is upward,the +ve Y direction is in the right wing direction from the front view,the +ve X direction is in the direction of the fuselage rear.
Mass Model• The aircraft is divided into 3 main sections of components:Structural Components.Propulsion Components.Control Components.
Manufacturing Skin Using Vacuum Bagging Technique• What is vacuum Bagging ?! a new technique used in composite manufacturing that used the pressure as a clamping force to press the fiber laminates together with the mold until the resin is cured.
Vacuum Bagging Light weight Product • vacuum bagging results in absorbing of excessive resin in the breathermaterial and can reduce Epoxy resin weight by 30% and total weight by 15% Better uniformity of lay up (No thick / • thin cross sections) exact shaping • vacuum Bagging lay up results in perfect shape that exactly like thefemale mold shape due to clamping force between mold and laminate. Strong bonding between layers •