Rolls-Royce Heritage Trust
Technical Series Reviews - Page 02
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Rocket Development with Liquid Propellants Softbound, 210mm x 297mm x 10mm, 156 pages Recommended Retail Price: 84 photographs/diagrams |
Reviewed by Graham White
Rolls-Royce Heritage Trust Technical Series No. 7
Rocket development has not received anything like the publicity of, say, piston engines. This book helps fill that void. Based on a technical paper written by W H J Reidel in 1950 for the British, it offers excellent insight into German rocket development culminating in the V2. Starting out with primitive rocket powered cars in the late 1920s, the paper goes through the evolutionary development steps required for a successful rocket engine. Critical to the success of a rocket is the guidance system, this pare describes in fairly good detail the gyroscopes and steering vanes used in the V2.
For the rocket enthusiast I'd say this is a must read book. Number 7 in the Technical series, it is a larger format than the normal Heritage Trust books being 8-1/4" by 11-5/8" and soft bound. Profusely illustrated with photographs and drawing by the author, all German captions are translated into English.
As with all Rolls-Royce Heritage Trust books this one offers unbelievable value for money.
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The Allison Engine Catalog Softbound, 215mm x 280mm x 15mm, 282 pages Recommended Retail Price: 300 b/w photographs/drawings |
Reviewed by Kimble D. McCutcheon
Rolls-Royce Heritage Trust Technical Series No. 9
This book provides a broad and fascinating survey of Allison engines and products, covering nearly everything except proprietary (vehicle transmission and GM diesel engine production) and still-classified aerospace products. While it does not attempt to address every model where there were many variants (such as the V-1710), it makes up for the lack of such minutia by exposing the reader to many new concepts, projects and products.
John Leonard, a third-generation Allison employee and long-time editor/contributor of the Rolls-Royce Heritage Trust Allison Branch Newsletter, has combined his vast knowledge of Allison engines with pictures, drawings and information from the Allison archives to produce this very enjoyable work.
Chapter 1, Piston Engines, covers Allison's work on the Liberty engine, its variants and myriad gearbox concepts. In addition to specifications and historical précis of selected models from the V-1710 series, V-3420 series, and DV-6840, relatively obscure concepts such as fuel injection, remote gearboxes (some facilitating multiple engines) and turbocompounding are presented.
Chapter 2, Turboprop, Turboshaft and Propfan Engines, includes the T38, T40, T54, T56 (powerplant for the Lockheed Electra and C-130), and Model 250 (helicopter) series. There is additional discussion of several afterburning and recuperated models, as well as test rigs, gearboxes and work on supersonic propellers.
Chapter 3, Turbojet and Turbofan Engines, includes numerous series, such as the J31, J33, J35, J71, TF41, and AE3007. Also covered are various lift-fan engines, such as the Model 610 and XJ-99.
Chapter 4, Ramjet and Rocket Engines, features Allison's experimental work on the PD-37 ramjet and rocket motor cases. While these activities yielded no production contracts, they did equip the company to build propellant tanks for the Apollo Command/Service and Lunar Excursion Modules.
Chapter 5, Automotive and Industrial Engines, details the gas turbine components and complete engines Allison designed and built for numerous customers including the General Motors Research Laboratory, US Army, US Navy, and US Department of Energy. These engines were intended to power automobiles, armored vehicles, busses, locomotives, boats, generators and auxiliary power units. Many of these engines were recuperated. Some were aimed at extremely high fuel economy and low emissions. Several were multi-fueled; a couple burned coal and one even burned wood!
Chapter 6, Development and Demonstration Engines, is comprised of advanced-concept demonstrators used to investigate high-Mach missile propulsion, high turbine inlet temperature, cooled turbine blades, variable-flow turbines, advanced gas generators, advanced materials and variable cycles.
Chapter 7, Engine Concepts, looks at paper studies that apparently never reached the hardware stage. Of note was a two-stroke V-12 reversible diesel for airship power, a 9,000 hp turboprop, a 10,500 hp coupled turboprop, a two-turbine turbojet with an interburner between the turbine stages, a few recuperated turboprops, several lift fan engines, and a nuclear rocket engine that appears to have been intended for atmospheric use.
Chapter 8, Other Products, examines the components Allison has designed and built over the years. These include parts for WWI vehicles, marine and aviation propeller reduction gearboxes, steel-backed bearings, Roots blowers, various clutches, fuel cells, and a compact nuclear reactor intended to power a portable ammonia generator that would provide fuel for an army from air and water.
Some Allison Records:
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The Rolls-Royce Spey Softbound, 295mm x 210mm x 8mm, 127 pages Recommended Retail Price: 84 photographs/illustrations |
Reviewed by Kimble D. McCutcheon
Rolls-Royce Heritage Trust Technical Series No. 10
The Rolls-Royce Spey, which entered service in 1964, was arguably the first turbofan engine designed specifically for commercial use. It later was also used in military applications as the core engine was modified and enhanced. The Spey's predecessor (12,000 lbT RB-141) was initially envisaged as power for the three-engine de Havilland DH121. However, British European Airways changed the requirement to a smaller airframe, ultimately resulting in the 9,850 lbT RB-163-1, which was later named the Spey. Variants found numerous applications, including the Trident, BAC 111, Buccaneer, F28, Gulfstream, Nimrod, Phantom and Corsair. The Spey has been used in marine and industrial applications and currently holds the world land speed record. More severe noise rules and requirements for better fuel economy ultimately ended Spey aero engine production after 5,646 were built. Industrial and marine engines are still being produced.
Broad application of the Spey involved numerous changes to the basic design, and this book details the more significant ones. All Speys were two-shaft engines. Nearly all had 3, 4 or 5-stage low-pressure compressors, 11 or 12-stage high-pressure compressors, 2-stage high-pressure turbines and 2-stage low-pressure turbines. The TF41 had a 3-stage low-pressure, 2-stage intermediate-pressure and 11-stage high-pressure compressor. Industrial and marine variants have an additional 2-stage power turbine.
The book is full of development and technical detail, with at least one high-quality illustration or photograph on nearly every spread; most are in color. Another attractive feature of the book is its landscape format, which lends itself to the presentation of gas turbine images. This is the second such book produced by the Rolls-Royce Heritage Trust, the first being Fast Jets, which tells the story of reheat.
Among the intriguing details is a long description of the fuel control system, which broke new ground in terms of reliability, acceleration control, surge margins over a wide range of flight conditions, and accuracy. Lucas designed, developed and funded the fuel control system using control laws and parameters that were very different from previous engines. The design employed full-flow metering and spinning valves to alleviate problems with hysteresis and friction that had arisen in previous systems as a result of fuel contamination and specific gravity variations.
Similar rich detail accompanies the discussions of compressor, burner and turbine development, as well as the many modifications that were made during its service life.
Like other Rolls-Royce Heritage Trust books, this one meets high standards for its writing, editing, illustration and production. It would be a bargain at twice the price.
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Jim Allison’s Machine Shop: The First 30 Years Hardbound , 11.2" x 8.6" x 0.7", 260 pages Recommended Retail Price: US $40.00 235 pictures/diagrams, black and white |
Reviewed by Kimble D. McCutcheon - 8 December 2016
Rolls-Royce Heritage Trust Technical Series No. 12
John Leonard's exploration of the Rolls-Royce Heritage Trust, Allison Branch archives has led to another intriguing look into Allison history. While his last book, The Allison Engine Catalog, presented brief descriptions of Allison engines and products, and covered the period of 1915 - 2007, this one provides a substantially deeper treatment of the early years, 1915 - 1945.
Leonard begins with coverage of Jim Allison's personal life, interests and business ventures. He continues with biographical sketches of Jim's friends, business partners and key employees.
Next, Leonard devotes 39 pages to the history and evolution of the many Allison buildings built mostly in and around the town of Speedway, Indiana. Speedway was the brainchild of Carl Fisher, who, along with Jim Allison and others, had founded the Indianapolis Motor Speedway in 1906. Allison was also an investor in the town of Speedway, which provided housing for his employees. Leonard's coverage of the Allison Plants includes numerous maps and photographs.
Several key Allison development projects and products are covered in depth. These include Allison steel-backed bearings, Liberty engines and modifications, marine engines, the X-4520 (an air-cooled X-24 developed in conjunction with the U.S. Army Air Service Engineering Division), and an airship diesel.
Leonard devotes 24 pages to new Allison V-1710 material that has come to light since the publication of Dan Whitney's Vee's for Victory! This includes drawings, photographs, supercharger development concepts and performance charts. Similarly, new material is presented on the Allison V-3420. Leonard also covers Allison gearboxes, gearbox concepts, and many engine concepts that never entered production. Finally early Allison-built turbojets and turboprops are summarized.
This is not only an easy-to-read technical history, but also is a useful reference. I heartily recommend it to anyone interested in Allison history or the development of engines.
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V-1710 and V-3420 Designs and Concepts Softbound, 8.0" x 10.0" x 0.87", 369 pages Recommended Retail Price: $44.99 Lavishly illustrated in color, black and white |
Reviewed by Kimble D. McCutcheon - 19 Nov 2020
Rolls-Royce Heritage Trust Technical Series No. 13
If ever there was a volume that contains the breadth of Allison's design imagination, this is the one. This extraordinary volume gives an unprecedented look at what goes on behind the scenes as an engine manufacturer develops and refines designs to address new requirements and installations.
This is the work of two authors, neither of whom is a stranger to the aircraft engine history field. Dan Whitney, who wrote Vee's for Victory: The Story of the Allison V-1710, is a retired mechanical and nuclear engineer. John Leonard, who wrote Jim Allison's Machine Shop‑ the First Thirty Years and The Allison Engine Catalog, is a third-generation Allison engineer who is also the Rolls-Royce Heritage Trust ‑ Allison Branch archivist and newsletter editor.
While processing the Allison Branch archival collection, John discovered a number of old microfilm rolls containing heretofore unpublished drawings of proposals, concepts and developments of V-1710, V-3420 and V-6840 engines and installations. John spent countless hours making these drawings suitable for publication, and they form the heart of Allison V-1710 and V-3420 Designs and Concepts. Dan provides background, historical context, commentary and engineering details. Together, Dan and John have produced a fantastic Allison historical reference, as well as an unparalleled exposure of the engine design process.
Topics include Early V-1710 Concepts, Airships and the V-1710-B, Gears and Shafts, Douglas DC-8 (before the jet!), V-1710 Installations, Auxiliary-Stage Superchargers, Turbo-Compound Engines, New (non-V-1710-based) Engines, V-1710 Improvements, Early V-3420 Developments, V-3420 Marine Engines, V-3420 Bevel Gears and Applications, and DV-6840 Engines.
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| V-1710 and V-3420 Designs and Concepts Table of Contents | ||||
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