Group Captain ER Rajappan is an IAF veteran with more than three decades of service. He was a scholar at the prestigious Centre for Air Power Studies – the only Air Power think tank in India and published articles in various journals on airpower, strategic matters and airport planning and operations. He also served the United Nations in DR Congo in Africa during the Congo crisis. Post-retirement, he founded Shivayu Aerospace – now an AS 9100 and ISO 9001 Aerospace and Defence company in Bangalore. He is an accomplished corporate trainer and motivational speaker. He is now fully engaged in manufacturing high precision machined components for aircraft, satellites and defence.