Assessment of the passenger aircraft mass and efficiency with a fuselage without portholes

Abstract

The problem of evaluating the effectiveness of reducing the weight of the aircraft and, in particular, the use of the concept of “fuel efficiency” is considered. For the design (operational) mass analysis, the mass state equation is used, on the basis of which the method of mass growth coefficients is constructed. The most widely used short-haul and medium-haul passenger aircraft of the B737 and A320 types are considered as an example of the application of this technique. The authors suggest to reduce the weight of the aircraft structure to switch to the fuselage without portholes. In the present work, this decision is assessed from the point of view of saving fuel weight.