Mohammad Ali Vaziri - Aerospace Engineering Dept. AmirKabir University of Technology, Tehran, Iran Professor of Aircraft Design
Mohammad Azadian - Aerospace Engineering Dept. AmirKabir University of Technology, Tehran, Iran MSC student
Sayyed Basir Ajelleh - Aerospace Engineering Dept. Malek Ashtar University of Technology, Esfehan, Iran MSC student

Reducing the weight of the aircraft is one of the most important issues of airplane design. Using advanced materials such as AL/LI and composite would decrease the weight of the aircraft and is one of the solutions. This paper determines the effect of using such materials (instead of the classical Aluminum) in aircrafts Wing area(S( and engine thrust(T) required. Our method includes the consideration of weight reduction effect of advanced alloys and materials in airplane structural module and modeling it into airplanes take off weight. Our case study addressed an indigenously designed jet transport of 186 passenger and 4000 km range (A-320 class). As a result the application of Composite in the wing, reduced the engine thrust required about 9.04%. This thrust reduction has only 1.18% error relative to the practical application of composite in the B-777X wing.

Composite-Weight reduction-Wing area-engine thrust