Mastering a heavy lift: learn how engineers design a 150-ton rotary tower crane from the ground up. This book presents a practical look at the methods used to analyze the forces on a rotary tower crane, compare design choices, and determine stresses to keep the structure safe and efficient. - Understand why English and German cranes differ in layout and cost, and how that shapes the design approach. - See how loads, wind, and motion are modeled to size components like the jib, trolley, gears, shafts, and drums. - Explore how safety factors, materials, and standard specifications guide every design decision. - Follow the step-by-step reasoning used to translate raw requirements into a complete, working crane design. Ideal for readers of engineering design, structural analysis, and mechanical system design who want a concrete view of crane development and stress calculations.