When Paul Fauchille presented his dictum “[a]irspace should be free as the High Seas [...] States should only have the territorial powers up to an altitude of 300 metres." to the public in 1901, it did not take long until the international community disagreed strongly. The fear of espionage, attacks and other abuse was too great to give up sovereignty over the own territories’ airspace.
This essay presents Fauchille’s idea of the freedom of the air (Chapter 2) and compares it with a concept of airspace sovereignty (Chapter 3), focussing on origin, arguments, logical consistency as well as international and national state practice. Further, it will be analysed whether current trends towards a liberalised market in scheduled international civil aviation could influence the legal status of the air (Chapter 4). Finally, remaining fields of strict sovereignty on the international political stage will be identified (Chapter 5), before a conclusion is drawn (Chapter 6).
The legal status of the air was not questioned for a long time. The states’ inability to control the airspace and the circumstance that manned flights were not operated on a regular basis yet seems to have deterred states from any claims of sovereignty. However, the technological progress and the first short balloon flights in the late 18th century attracted the public’s attention. Among others, the French lawyer and pioneer of air law Paul Auguste Fauchille developed his own concept for the legal status of the air, which will be outlined in the next chapter.
Table of Contents
Chapter 1 – Introduction
Chapter 2 – Fauchille’s Concept for the Air
Chapter 2.1 – Freedom of the Air
Chapter 2.2 – Arguments
Chapter 2.3 – Critique
Chapter 2.4 – National and International State Practice
Chapter 3 – Airspace Sovereignty
Chapter 3.1 – Origin
Chapter 3.2 – Arguments
Chapter 3.3 – State Practice and Legal Implementation
Chapter 4 – Commercial Airspace Liberalisation
Chapter 4.1 – Introduction
Chapter 4.2 – Bilateral Air Service Agreements
Chapter 4.3 – Open Skies Agreements
Chapter 5 – Presence of strict Sovereignty
Chapter 6 – Conclusion
Research Objectives and Core Themes
This essay explores the historical and legal tension between the concept of a free, open airspace and the established doctrine of strict state sovereignty over national airspace. It investigates whether modern trends in international aviation, particularly market liberalisation and Open Skies agreements, represent a practical movement toward Fauchille's historical vision of free air passage or if sovereign control remains an insurmountable barrier.
- Historical evolution of "freedom of the air" vs. "airspace sovereignty."
- Impact of bilateral and multilateral agreements on commercial aviation.
- The role of economic necessity in incentivizing the liberalization of air traffic rights.
- Persistent domains of strict sovereignty in military and governmental aviation.
- The relationship between state sovereignty, safety, and security standards.
Excerpt from the Book
Chapter 2.1 – Freedom of the Air
Fauchille was not the first who gave thought to the legal status of the air. For instance, the Dutch jurist Hugo Grotius mentioned the freedom of the air in his treatise De jure belli ac pacis already in 1625 to argue for the freedom of the High Seas, a thesis developed in his earlier work Mare liberum. A similar analogy to the rights of the High Seas can also be found in Jean-Jacques Rousseau’s treatise Le Nouveau Dédale.
Yet, Fauchille’s approach to the freedom of the air remains unique, as he is the first one to have stimulated an international debate on this very issue.
As described in the beginning of the previous chapter, Fauchille’s concept consists of the idea that the air is free and states should have only rights to such an extent as necessary for their conservation in times of peace and war. The highest artificial building in Paris at his time, the Eiffel Tower, rose 300 metres above ground level; this altitude was suggested as a vertical lower limitation. The states’ right of self-preservation (droit de conservation) should range to an altitude of 1500 metres, at that time a level at which it was technically impossible to take accurate photographs.
Summary of Chapters
Chapter 1 – Introduction: This chapter introduces Paul Fauchille's 1901 vision of a free airspace and frames the central conflict between this ideal and the realities of modern state sovereignty in aviation.
Chapter 2 – Fauchille’s Concept for the Air: It outlines the historical origins of Fauchille's theory, his arguments for a vertical limitation of sovereignty, and the subsequent critique and state practice that led to the rejection of his original vision.
Chapter 3 – Airspace Sovereignty: This chapter examines the foundations of the rival concept of airspace sovereignty, tracing its legal arguments and the state practice that solidified it in international treaties like the Paris and Chicago Conventions.
Chapter 4 – Commercial Airspace Liberalisation: The focus here is on how economic needs have driven the creation of traffic rights and modern liberal agreements, such as Open Skies, which function as partial implementations of free airspace principles.
Chapter 5 – Presence of strict Sovereignty: This section identifies the persistent areas where strict sovereignty remains dominant, particularly in the military and governmental use of airspace, and discusses its role in safety and security regulation.
Chapter 6 – Conclusion: The conclusion synthesizes the findings, noting that while sovereignty remains the foundation of international aviation, global economic pressure continues to push states toward deeper liberalization and cooperation.
Keywords
Airspace Sovereignty, Freedom of the Air, Paul Fauchille, International Civil Aviation, Open Skies Agreements, Bilateral Air Service Agreements, Chicago Convention, State Practice, Liberalisation, Air Navigation, Traffic Rights, National Security, Aviation Law, Sovereignty, Global Air Market
Frequently Asked Questions
What is the primary focus of this work?
The work examines the historical and legal conflict between the theoretical concept of a free, international airspace and the practical reality of sovereign control exerted by individual states.
What are the central thematic fields?
The study centers on air law, the history of aviation regulation, international relations, and the economic drivers behind the liberalisation of commercial air travel.
What is the central research question?
The essay explores whether Fauchille’s 1901 vision of a "free airspace" can ever be fully realized in a modern world, or if the doctrine of strict state sovereignty will always remain the dominant force in international relations.
Which scientific methods are employed?
The research uses a legal-historical analysis, comparing theoretical concepts of air freedom against established state practice, international treaties, and the development of commercial aviation policies.
What topics are discussed in the main body?
The main body covers Fauchille's original theory, the emergence of the concept of airspace sovereignty, the evolution of Bilateral Air Service Agreements, the rise of Open Skies, and the remaining domains of strict state sovereignty.
Which keywords best characterize the research?
Key terms include Airspace Sovereignty, Freedom of the Air, Chicago Convention, Open Skies, and aviation liberalization.
How does the author view the future of aviation liberalization?
The author concludes that while full freedom of the air remains a distant goal, global economic pressures continue to push nations toward increased cooperation and the adoption of more liberal aviation agreements.
How do Air Defence Identification Zones (ADIZ) relate to the concept of sovereignty?
ADIZs are presented as examples of how states attempt to extend their surveillance and control beyond their territorial borders, reflecting the persistent nature of strict sovereignty in non-commercial sectors.
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- Malte Gunnar Krumm (Autor:in), 2017, Fauchille’s long-cherished dream of a free airspace. New hope for the freedom of the air in a free market economy?, München, GRIN Verlag, https://www.grin.com/document/359335
