This publication documents the Propulsion Systems Laboratory No. 1 and 2 and the Altitude Wind Tunnel prior to their demolition.

Written as a basic guide on the uses and characteristics of space systems, this book discusses astronautics and its applications, technology in the space environment, rocket vehicles, propulsion systems

This publication is based chiefly on the author's close personal connection with the development of aircraft engines during the period 1917-1950. The illustrations include a number of engines, aircraft, and the materials in the collections of the National Air and Space Museum.

This book is a contribution to the current effort among historians of technology to understand technological innovation as a social activity or process.