books.google.gr - This book describes the history, technology, and future of rocket planes. Michel van Pelt takes us on a journey into this fascinating world, examining the unusual concepts and actual flying machines that have been devised over the last hundred years. He recounts stories from the early pioneers who attached...https://books.google.gr/books/about/Rocketing_Into_the_Future.html?hl=el&id=4M9i-FXVKckC&utm_source=gb-gplus-shareRocketing Into the Future
