Keith's note: NASA SP-125 "Design of Liquid Propellant Rocket Engines" was online for decades at NTRS. Not any more. (we have it online here) It was declassified on 30 Nov 1969. Here is an excerpt from the book's preface:
"This book intends to build a bridge for the student and the young engineer: to link the rocket propulsion fundamentals and elements (which are well covered in the literature) with the actual rocket engine design and development work as it is carried out in industry (which is very little, if at all covered in literature). The book attempts to further the understanding of the realistic application of liquid rocket propulsion theories, and to help avoid or at least reduce time and money consuming errors and disappointments. In so doing, it also attempts to digest and consolidate numerous closely related subjects, hitherto often treated as separate, bringing them up to date at the same time."
Oh yes, in the foreword, Wernher von Braun said: "As man ventures deeper into space to explore the planets, the search for perfection in the design of propulsion systems will continue. This book will aid materially in achieving that goal."
Not any more. Charlie Bolden took this half-century old book offline because Frank Wolf scared him into doing so.
- Charlie Bolden's Gutted Version of NTRS is Back Online, earlier post
- NASA Technical Reports Server Mysteriously Taken Offline, earlier post