Sustainable, cleaner aviation. This topic is more than actual and more than important. What manufacturers are doing in order to reach real improvement on this matter? Have a look at the latest announcement from Dahen and Airbus, announcing their collaborative partnership for the design and development of the wing- mounted EcoPulseTM distributed hybrid propulsion demonstrator with a scheduled maiden flight date of 2022.
Based on Daher’s TBM platform, this project kick-started by CORAC (the French Civil Aviation Research Council) with support from DGAC (the French Civil Aviation Authority) will develop technologies that boost the environmental efficiency of aircraft and meet the new needs of air travel.
The overall approach spans 3 areas of research and development:
Component and systems installation, flight testing, overall analysis and regulatory construction will be undertaken by Daher using its TBM platform.
The purpose of this three-way collaboration is to validate technologies designed to reduce polluting emissions and noise pollution, and create new uses for air transportation.
“Reducing the environmental impact of aircraft is a concern for every part of the industry. So it is with enthusiasm and determination that we welcome the opportunity to be part of this unique partnership alongside Airbus and Safran to succeed in the ambitious challenge set by CORAC. We are determined to make it a distinctive feature of the French aircraft industry, and are certain that all stakeholders will unite around it,” explains Nicolas Orance, SVP Aerospace and Defense BU at Daher.
Safran will supply the entire EcoPulseTM distributed hybrid propulsion system (excluding batteries),consisting of a turbogenerator (a combined turbine and power generator), an electric power management system and integrated electric thrusters (or e-Propellers) including electric motors and propellers. The electric thrusters will be integrated into the EcoPulseTM wing and will provide propulsion thrust, at the same time as delivering aerodynamic gains (reducing wing surface area and wingtip marginal vortices, and therefore drag).
The installation of a distributed propulsion system on a TBM aircraft is an exciting opportunity to boost its efficiency, diversify its missions, reduce its environmental footprint and cut its operating costs.
“Safran has developed a technology roadmap for the installation of electric thrusters on aircraft.EcoPulseTM offers us an excellent opportunity to evaluate and identify the specific features expected by this market, particularly in terms of new hybrid propulsion aircraft projects. Safran intends to position itself as the market leader in this type of propulsion system by 2025,” says Stéphane Cueille, Senior Executive Vice President R&T and Innovation at Safran.
Airbus will be involved in the aerodynamic modeling of the demonstrator, both to support configuration choices and to enable the development of flight control laws. All these considerations should make it possible to demonstrate the benefits of distributed propulsion, and provide the baselines for the design of optimized distributed propulsion aircraft in terms of methods, tools and outcomes.
“This distributed hybrid propulsion demonstrator is a very important step towards preparing the certification standards for a more electric aircraft. It also gives us the opportunity to improve our simulation models and consider their use on larger aircraft,” confirms Jean-Brice Dumont, EVP Engineering at Airbus.
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