Free Speeches from our members

The texts published in this section allow members of the Academy to express themselves freely on the subjects of their choice.

These documents reflect only the opinion of their authors and do not in any way commit the official word of the Air and Space Academy.

Update on Airline Pilot Hypovigilance and Incapacitation Detectors

By Jean-Jacques SPEYER, member of the Civil Aeronautics Commission of the AAE

This note recalls the work carried out up to 2009 by the author in the context of reflections on the application to Airbus aircraft and proposes ways of implementation still to be developed, taking into account the results of the latest research on the subject.

A truly ergonomic approach to HMI must necessarily include any type of interactive exchange between man and machine.

It must include consideration of ...

TRAIN and PLANE: Decarbonization in the same fight?

By Xavier BOUIS, AAE member and President of the IESF Aeronautics and Aerospace Sectoral Committee… and SNCF “Grand Voyageur”

Why this article?
I had this article published in April on the website of the Engineers and Scientists of France (IESF). Several colleagues of the AAE persuaded me to present it as “free speech” on the Academy’s website. And that’s a fact! Details have been added in italics

I am currently working on the issues of decarbonisation of air transport, which ...

SAF and energy efficiency, inseparable keys to aeronautical decarbonization

By Jean-Paul Herteman, former Chairman and Chief Executive Officer of SAFRAN, Honorary Member of the AAE.

The decarbonisation of air transport is imperative. Admittedly, this represents a relatively modest share of total greenhouse gas emissions, about 2.5% (with an equivalent impact reaching up to perhaps 4% due to contrails, we will come back to this). But its very strong growth (on average 2 times faster than that of GDP over the past 60 years) leaves no doubt: neither about the ...

The secrets and limits of Ariane 6*’s competitiveness

By Alain Charmeau, full member of the AAE and former Chief Executive Officer of ArianeGroup.

[*] Article published in ASAF’s Spring 2022 issue of “Engagement”.

Designed in the 1990s, the Ariane 5 launcher aimed to provide European states with autonomous access to space and to develop new technologies in the 12 countries participating in the programme. The Ariane 5 launcher was then a commercial success because it perfectly met the need for access to geostationary orbit at a time when ...

Air, space and physical travel

By Eric Dautriat, Vice-President of Air and Space Academy

What if Air and Space (and thus their Academy) together became the symbol of physical presence, in a world in the process of virtualization? The antidote to the invasion of ectoplasm and avatars? The alternative to the “metaverse”, the 3D universe announced by Facebook, among others? And to go even further, the anti-Matrix?

The health crisis has established a global society of confinement, which can be understood with wide variations ...

Recovery plan for aeronautics in France following the Covid 19 crisis: assessment of the aid put in place by the State and the regions

By Yann Barbaux,Senior Vice President Airbus SAS, former Executive Chairman Aerospace Valley, AAE correspondent

In March 2020, the health crisis linked to COVID-19 plunged air transport, and in the wake of the entire civil aeronautics sector, into a deep economic crisis, on a scale and duration never seen before, and all the more severe in its impact as it occurred in a period of sharp increase in production rates that had led all players to invest massively. At the height ...

A long-term vision of air transport: a great challenge.

By Jean-Claude Ripoll, Honorary Member.

Air Transport is one mobility tool among others. Not every movement of an artifact can be completely “carbon-free”. Moving into the third dimension offers many advantages but requires a concentrated source of energy. Moving away from the speed paradigm will make it possible to implement all the resources of technology. A societal disruption in the demand for mobility, combined with real cooperation between modes of transport, would be the major way to reduce the global ...

Engines and the environment

By Alain Joselzon, Full Member.

The engines, and more generally the propulsion system, are a fundamental system for the aircraft, to which they provide the thrust necessary for movement, from the energy source that constitutes the fuel transported. In doing so, they produce noise and emissions that have an impact on the environment, but this impact is not independent of the characteristics of the aircraft itself…

Aircraft and Engines: very close interdependence

The degree of integration of engines in aircraft ...

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