INtegration and Digital demonstration of low-emission aIrcraft technoloGies and airport Operations (INDIGO)

通过减少航空的影响来实现气候中和的目标是一项任务，需要为颠覆性技术和运营概念的发展精心起草路线图。特别注意机场当地机场区域的污染物和噪音排放，需要一种协同方法，将飞机方面和机场方面的干预措施结合在一起。这就要求在开发技术方面进行协调努力，这些技术不仅在巡航条件下提供好处，而且能够改善当地的空气质量和机场区域的噪音，因为污染物和烦恼对当地社区的影响已被证明在发病率和死亡率方面相当大。INDIGO是学术界、研究中心和机场，旨在确定机场当地空气质量和噪音改善的边际，这是由于引入了一种新的非常规中程飞机，该飞机具有基于混合动力/可持续动力和传统燃料动力系统的分布式推进，以及能够在机场附近低空以零至低排放模式（即电动和SAF）安静飞行的大展弦比机翼，只有在机场附近时才使用传统航空燃料需要，例如在更高的高度或在巡航期间充电。INDIGO将探索下一代静音、清洁的中程飞机的新模式，以及这种新飞机将改变“机场内外”运营的方式。它将引入改进的方法来分析未来的航空环境影响，在不确定性的过滤下，将能够考虑非常规飞机性能和未来的机场情景。

Achieving the goals of climate neutrality by reducing the impact of aviation is a task that requires a carefully drafted roadmap for the development of disruptive technologies and concepts of operations. With particular attention to the emissions of pollutants and noise in airport local airport areas, a synergetic approach is needed that combines together interventions on the aircraft side and on the airport side. This calls for coordinated efforts in developing technologies that not only provide benefits during cruise conditions but also are capable of improving the local air quality and noise in airport areas where the impact of pollutants and annoyance to local communities has been demonstrated to be quite large in terms of morbidity and mortality. INDIGO is a collaborative project between academia, research centres and airports that aims at identifying the margins of improvement in airport local air quality and noise resulting from the introduction of a new non-conventional mid-range aircraft featuring distributed propulsion based on hybrid electric/sustainable and conventional fuel powertrain and large aspect-ratio wings capable to fly quietly and in zero-to-low-emission mode (i.e. electric and SAF) at low altitudes near airports and resort to conventional aviation fuel only when required, e.g. at higher altitudes or to recharge batteries during cruise. INDIGO will explore a new paradigm for the next-generation of silent and clean mid-range aircraft and for the way such a new aircraft will allow transforming the operations “at and near” airports. It will introduce improved methods for the analysis of future aviation environmental impact that, under the filter of uncertainty, will be able to account for non-conventional aircraft performance and future airport scenarios.