Aerodynamic design and aircraft family concept for an advanced technology regional aircraft (ATRA)

Abstract

The aim of this work is to make a feasibility study of the application of combined Hybrid Laminar Flow Control (HLFC) - Variable Camber Wing (VCW) to the ATRA aircraft family. The VCW can be used as a lift control during cruise and climb to find the best lift/drag ratio. The prediction of ATRA’s performance used computational fluid dynamic and empirical methods. During cruise, compared to the turbulent version, the lift/drag improvement was achieved due to the application of the combined HLFC-VCW. This improvement leads to the reduction of maximum take-off weight (MTOW) for constant design requirements and objectives (DR&O) and to the increased of range performance for constant MTOW.