Pushpindar Singh; who was the inspiration and brains behind their works. Ravi left India for the US, followed by two decades in India ending in 1989. In India, Ravi wrote over 500 articles, plus books and papers. He has a total of about 35+ books, many refused permission to publish by the Government of India. (Late) Pushpindar Singh was internationally well-known for his research and writing on Indian aviation matters for over five decades, being regarded as virtual chronicler of India’s aviation history and present times. He has 30+ books authored to his credit and is the Founder of the Vayu Aerospace & Defence Review Journal that has just completed 50 years.