By Dr Ross Mahoney

Editorial note: This piece was originally drafted not long after the passing of Air Vice-Marshal Mason. However, several personal reasons led to a delay in its publication. 

On 12 November 2023, Air Vice-Marshal Professor R.A. Mason, one of the doyens of air power studies, sadly passed away. Known as Tony by most who knew him personally and professionally, Mason can be considered one of the fathers of air power studies in the UK. As I have argued elsewhere, Mason was arguably the critical British air power thinker of the late 20^th Century. From being the Royal Air Force’s (RAF) first Director of Defence Studies (DDefS) to his writing and commentary work, Mason was consistently at the forefront of the field until the 2010s. Indeed, his consistent commitment to the field and the length of his career made him stand out. He was also generous with his time and knowledge and always happy to share material with those who shared his interests.

Mason joined the RAF in 1956 and entered the Education Branch. He gradually rose through the ranks in his branch and undertook various assignments, including attending King’s College London, the United States Air War College and the RAF Staff College. Eventually, in 1976, Mason was informed that he would be the RAF’s first DDefS. Mason took up the role at the start of 1977. The position of DDefS was established due to the perceived state of thinking on air power within the RAF and public awareness of the Service’s role. In a letter to Air Officer Commanding-in-Chief Support Command, Air Marshal Sir Reginald Harland, Chief of the Air Staff, Air Chief Marshal Sir Neil Cameron noted that the position was being established ‘to help provide a new stimulus to air power thinking’ throughout the RAF.[1] This point was also emphasised in the terms of reference for the DDefS post, as there was a need to ‘write on air power and defence issues,’ which was to be encouraged.[2]

The establishment of the post of DDefS at the RAF Staff College at Bracknell and Mason’s perceived suitability for the role caused some debate. While this is not the place to consider that debate, the view of Mason’s successor, Group Captain Timothy Garden, is worth noting. Garden, a pilot and later Air Marshal Baron Garden, noted in 1982 in Air Clues that a colleague had questioned why he would want to take over what was perceived by 1982 as an ‘admin branch’ role. Garden reflected that the most appropriately qualified person should essentially hold the post to achieve its aims and that it ‘should not be the prerogative of any branch.’[3] That Garden, as a pilot, viewed the post in such a way was as much down to Mason’s hard work in the role as it was to the importance of the RAF’s intellectual development.

Mason nonetheless quickly sought to encourage discussion and debate and discussion about the role of air power within the service on taking up the role of DDefS. Despite the demise of the RAF Quarterly in 1977, Mason regularly contributed to Air Clues, which, up to the 1970s, had primarily been a technical publication for the RAF. In 1980, he established the Air Power Supplement to Air Clues, the spiritual ancestor to the RAF’s current professional flagship journal, Air and Space Power Review.[4] He also regularly contributed to other publications, such as The RUSI Journal. Perhaps his critical success in this period was organising an academic symposium in his first year in post. This symposium was entitled ‘Air Power in the Next Generation.’ It was well attended and laid the basis for similar endeavours by his successors. It was also published as Air Power in the Next Generation, co-edited with Edgar Feuchtwanger and published by The Macmillan Press in 1979. The book included contributions from the senior USAF, Luftwaffe, and Israeli officers, as well as civilian academics such as John Erickson. Much of Mason’s work started a process whereby his successors have continued to contribute to the collegiate intellectual development of the RAF through various schemes such as publications, conferences, and the management of defence fellowships.[5] Many former post-holders, such as Air Commodore (ret’d) Professor Peter Gray, are also notable for their contribution to developing British air power thinking through their engagement with academia after leaving the post of DDefS and the RAF.

Mason’s contributions to air power studies continued after moving on from the DDefS role. In 1983, Mason published Air Power in the Nuclear Age in conjunction with Air Marshal Michael Armitage. This publication helped cement Mason’s position as a leading air power thinker. As Marshal of the Royal Air Force Lord Cameron noted in the foreword to the book, ‘[t]he joint authors of this book are advanced and enlightened thinkers about the doctrine of air power as a vital and perhaps the most important element of modern and future warfare.’[6] This view was not hyperbole. For example, in his 1984 overview of air power literature, historian Richard Hallion described the book as an ‘excellent survey’ of the development of air power during the Cold War.[7] The book was updated as a second edition in 1985. Mason’s other notable works in this period were the edited book War in the Third Dimension and the establishment of the Brassey’s Air Power: Aircraft, Weapons Systems and Technology Series. This latter series was interesting because it was explicitly directed at developing an awareness of air power amongst junior military personnel.

After retiring from the RAF in 1989, Mason moved into academia. He became the Leverhulme Air Power Research Director for the Foundation for International Security and took up a post as a Senior Research Fellow at the Centre for Studies in Security and Diplomacy at the University of Birmingham, where he was director. In 1996, he was made an Honorary Professor of Aerospace Policy at the University of Birmingham.

In 1994, Mason published what might be considered his magnum opus, Air Power: A Centennial Appraisal. This book confirmed Mason’s place as one of Britain’s leading air power thinkers. In this book, Mason examined the development of air power between 1989 and 1994. In doing so, he took a historical approach to examine how air power developed in the years up to this period. Mason then conceptualised the period 1989 to 1994, focusing on several key themes, such as the place of air power in arms control. Notably, he sought to contextualise much of the then-contemporary debate about the role of air power in the First Gulf War. Perhaps the most significant aspect of the book lay in Mason’s conceptualisation of what he called ‘differential air power.’[8] In short, Mason argued that while many nations shared ideas around the implementation of air power, only one in 1994 might be able to fully apply the advantages afforded by air power – the US. Using the idea of differential air power, Mason explored why the US stood out as a unique user of air power capabilities. These were important views for the time; however, while the book remains a significant contribution to air power studies, given factors such as the rise of China in the 21^st Century and the distributed use of off-the-shelf technology such as drones, it remains to be seen whether his view remains applicable. Nevertheless, Mason concluded that:

One enduring concept underlay all air power thinking and all operations from the first day of the century to the last, and will continue to do so. Any nation intent on going to war to pursue an interest or defend a principle must first secure the air above it.[9]

Mason’s book was well received at publication and has become a commonly cited work. In his 1995 review in The RUSI Journal, Garden described the book as ‘excellent [and] thought-provoking.’[10] Thomas Keaney, who had worked on the Gulf War Air Power Survey, noted that the book made an ‘important contribution to any discussion on the future of airpower in the United States or elsewhere’ in a 1996 review for the US Joint Forces Quarterly.[11] However, historian Philip Sabin, reviewing the book in the Journal of Strategic Studies in 1995, offered a more tempered view. While recognising that the book had certain strengths, particularly Mason’s ‘balanced insights into many of the controversial issues regarding air power,’ Sabin also highlighted the challenge of reading a book that was ‘dense and difficult to follow without careful reading.’[12]

After the publication of Air Power, Mason continued to contribute to both the public’s and the RAF’s understanding of air power through his continued contribution to publications.[13] He also served as an expert member of the House of Commons Defence Committee in the early 2000s and helped inform British defence policy. He was also an inveterate media commentator and was often called to provide expert opinion. Mason’s contribution to air power studies was wide-ranging. While he had retired several years before his passing, his expertise will undoubtedly be sorely missed by many air power scholars for decades to come.

Dr Ross Mahoney is an independent scholar specialising in the history of war with particular reference to the use of air power and the history of air warfare. He is currently the Senior Historian within the Heritage Policy team at Brisbane City Council in Australia. He has nearly 20 years of experience in the education, museum and heritage sectors in Australia and the United Kingdom. Between 2013 and 2017, he was the inaugural Historian at the Royal Air Force Museum in the UK. In Australia, he has worked as a Historian for the Department of Veterans’ Affairs and taught at the Strategic and Defence Studies Centre at The Australian National University based at the Australian War College. His research interests are focused on the history of war, specifically on the history of air power and air warfare, military leadership and command, military culture, and the history and development of professional military education. He also maintains an interest in transport history. He has published numerous articles, chapters and encyclopedia entries, edited two books, and delivered papers on three continents. His website is here, and he can be found on Twitter at @airpowerhistory.

Header image: Ramslade House, the home of the RAF Staff College in Bracknell when Mason took up the role of Director of Defence Studies. (Source: Wikimedia)

[1] Author’s Personal Collection, Letter from the Chief of the Air Staff to AOC-in-C Support Command, 2 November 1976. I am grateful to the late Air Vice-Marshal Professor R.A. Mason for a copy of this and other documents linked to the establishment of the DDefS post.

[2] Author’s Personal Collection, Terms of Reference for Director of Defence Studies appended to a Letter from the Chief of the Air Staff to AOC-in-C Support Command, 2 November 1976, p. 1.

[3] Group Captain Timothy Garden, ‘Why don’t we forget Defence Studies and get on with the job?’ Air Clues 36, no 10 (1982), p. 364.

[4] Air Vice-Marshal Tony Mason, ‘Air Power Review’s Place in RAF History,’ Air Power Review 21, no. 1 (2018), p. 10.

[5] For a variety of publications produced under the guidance of DDefS, see: Andrew Lambert and Arthur C. Williamson (eds.), The Dynamics of Air Power (London: HMSO, 1996); Stuart Peach (ed.), Perspectives on Air Power: Air Power in its Wider Context (London: The Stationary Office: 1998); Peter W. Gray (ed.), Air Power 21: Challenges for the New Century (London: The Stationary Office, 2000); Peter W. Gray and Sebastian Cox (eds.), Air Power Leadership: Theory and Practice (London: The Stationary Office, 2002).

[6] Marshal of the Royal Air Force Lord Cameron, ‘Foreword’ in M’J’ Armitage and R.A. Mason, Air Power in the Nuclear Age: Theory and Practice, Second Edition (Basingstoke: The Macmillan Press, 1985), p. vii.

[7] Richard Hallion, The Literature of Aeronautics, Astronautics, and Air Power (Washington DC: Office of Air Force History, 1984), p. 36.

[8] Tony Mason, Air Power: A Centennial Appraisal (London: Brassey’s, 1994), pp. 235-278.

[9] Mason, Air Power, p. 278.

[10] Timothy Garden, ‘Book Reviews – Air Power: A Centennial Appraisal,’ The RUSI Journal 140, no. 3 (1995), p. 60.

[11] Thomas Keaney, ‘A Jubilee for Airmen: A Book Review,’ Joint Forces Quarterly 11 (1996), p. 134

[12] Philip Sabin, ‘Book Review – Air Power: A Centennial Appraisal,’ Journal of Strategic Studies 18, no. 4 (1995), pp. 141-2.

[13] For example, see: Tony Mason, ‘British Air Power’ in John Andreas Olsen (ed.), Global Air Power (Dulles, VA: Potomac Books, 2011), 7-62; R.A. Mason, ‘The Response to Uncertainty’ in John Andreas Olsen (ed.), European Air Power: Challenges and Opportunities (Dulles, VA: Potomac Books, 2014), pp. 215-30; Mason, ‘Air Power Review’s Place in RAF History,’ pp. 10-1.