Two horizontal direct-acting triple-expansion screw-engines laid out for cruisers Nos. 4 and 5, with 10,500 horsepower under forced draught.
This specification presents the complete engine package and auxiliary systems used in a 4,083-ton displacement cruiser, detailing the machinery, auxiliaries, and the testing regime.
The book outlines the scope, layout, and performance of the main engines and their auxiliaries, including a vertical single-acting auxiliary air-pump, an auxiliary circulating-pump, and the associated condensers and feed systems. It covers the design philosophy, materials, construction tolerances, and the integration of boilers, condensers, and piping for shipboard operation.
What you will find in this edition:
- Technical descriptions of the engines, with 10,500 indicated horsepower and forced-draught operation, plus the arrangement of the direct-acting triple-expansion cylinders.
- Details on the auxiliary equipment, including air-pumps, circulating-pumps, and condensers, and how they connect to the feed-tank and sea-suction systems.
- Boiler construction specifics: double-ended boilers, stay-tubes, tubes, combustion-chambers, riveted joints, and shell thickness, plus testing and materials requirements.
- Standards for testing, weights, materials, and inspection, including pressure tests, hydrostatic checks, and post-test painting requirements.
Ideal for readers of naval engineering history and ship propulsion, this edition provides a window into the design standards and factory-to-ship procedures used in late 19th-century steam engineering.