Subsonic Single Aft Engine (SUSAN) Transport Aircraft Concept and Trade Space Exploration

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Subsonic Single Aft Engine (SUSAN) Transport Aircraft Concept and Trade Space Exploration

R. H. Jansen / C. C. Kiris / T. Chau / G. K. W. Kenway / L. G. Machado / J. C. Duensing / A. Mirhashemi / J. M. Haglage / T. P. Dever / J. W. Chapman / ... [mehr]

Abstract

A trade space exploration of a new NASA regional transport aircraft concept called the SUbsonic Single Aft eNgine (SUSAN) Electrofan is presented. The SUSAN concept uses a 20MW Electrified Aircraft Propulsion (EAP) system to enable advance Propulsion Airframe Integration (PAI) in transport category aircraft. Alternative fuels will be used to reduce the amount of emissions per energy used. By combining these features there is the potential to reduce aircraft emissions by 50% per passenger/mile while retaining the size, speed, and range of large regional jets. SUSAN is has a 750 mile economic mission, a 2500 mile design range and a maximum capacity of 180 passengers. The SUSAN configuration utilizes a single aft mounted engine and distributed electric wing-mounted thrusters on a tube and wing arrangement with a T-tail empennage. The SUSAN Electrofan employs a hybrid powertrain to enable: single turbofan operation on a large transport category aircraft; increased aerodynamic and propulsive efficiency through placement of electric engines; optimized turbofan sizing and efficiency through control and electric boosting, reduced control surface sizing through thrust augmentation. A single use battery is employed as the power source in case of turbofan failure. The design study also considers the constraints of operating within the current airport, airspace and economic constraints. This paper presents the status of the trade space exploration; however the concept definition is not finished. Forward work includes optimizing the overall aircraft configuration and including certain hard to model features like boundary layer ingestion or natural laminar flow across all appliable subsystems. Additional work forward work is a more extensive analysis of the configuration using alternative fuels.

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Titel :

Subsonic Single Aft Engine (SUSAN) Transport Aircraft Concept and Trade Space Exploration

Beteiligte:

R. H. Jansen (Autor:in) / C. C. Kiris (Autor:in) / T. Chau (Autor:in) / G. K. W. Kenway (Autor:in) / L. G. Machado (Autor:in) / J. C. Duensing (Autor:in) / A. Mirhashemi (Autor:in) / J. M. Haglage (Autor:in) / T. P. Dever (Autor:in) / J. W. Chapman (Autor:in)

Erscheinungsdatum :

2021

Format / Umfang :

21 pages

Medientyp :

Report

Format :

Keine Angabe

Sprache :

Englisch

Subsonic Single Aft Engine (SUSAN) Transport Aircraft Concept and Trade Space Exploration

Subsonic Single Aft Engine (SUSAN) Transport Aircraft Concept and Trade Space Exploration

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