Technical concepts analysis of transport aircraft with various power plant types and layout

Aeronautical and Space-Rocket Engineering

Design, construction and manufacturing of flying vehicles


Аuthors

Chanov M. N.*, Skvortsov E. B.**, Shelekhova A. S.***, Bondarev A. V.****, Ovchinnikov V. G.*****, Semenov A. A.******, Chernavskikh Y. N.*******

Central Aerohydrodynamic Institute named after N.E. Zhukovsky, TsAGI, 1, Zhukovsky str., Zhukovsky, Moscow Region, 140180, Russia

*e-mail: arzmax@bk.run
**e-mail: skvortsov-tsagi@yandex.ru
***e-mail: anna.shelekhova@tsagi.ru
****e-mail: bondarevram@mail.ru
*****e-mail: ovg06@mail.ru
******e-mail: nio-10@tsagi.ru
*******e-mail: urij_ch@mail.ru

Abstract

The article deals with multidisciplinary comparison of the twin-engine transport aircraft concepts with various types and layout of the power plant.

The main purpose of the study consists in the transport efficiency increasing of the wide-body aircraft. The key condition of the presented study is observance of the same operational requirements and a single level of technical excellence. All the concepts of a transport aircraft discussed in this article belong to the 16–23 tons load capacity class.

The article considered four technical concepts of a transport aircraft with two engines:

– the aircraft of traditional layout with turbofan engine (MTS-0);

– the aircraft of traditional layout with turbojet engine (MTS-1);

– the aircraft of integrated layout with turbojet engines positioned in the center wing section (MTS-2);

– the aircraft of integrated layout with turbojet engine above the stern of oval fuselage (MTS-3).

The authors performed analysis of the power plants efficiency; defined aerodynamic, weight and takeoff-landing characteristics, and perform comparison of both transport and economic efficiency of the concepts being considered.

The article showed that the aircraft with turbofan engine (MTS-0) demonstrated minimum fuel consumption, and it required minimum runway length at maximum flight range with the 20 tons load. The price and direct operating costs herewith of the aircraft with turbofan are the highest.

When performing average in the park transportation work with the 14 tons load, the integrated layout engines positioned in the center wing section (MTS-2) is being distinguished by the lowest price and operating cost value. Thus, it can be recommended for commercial application.

Keywords:

transport aircraft, technical concepts, power plant and airframe integration, turbojet engines, multidisciplinary comparison

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