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Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 478
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 478
Get Book Here
Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 44
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Book Description
Issued to provide a ready reference file of the Wartime Report numbers and also the corresponding code numbers of the original documents. A chronological list of original advance publications, showing the corresponding Wartime Report Number.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 344
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 284
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category :
Languages : en
Pages : 200
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Book Description
Author: S. Mike Pavelec
Publisher: Bloomsbury Publishing USA
ISBN: 1573567191
Category : History
Languages : en
Pages : 249
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Book Description
In the 1930s, as nations braced for war, the German military build up caught Britain and the United States off-guard, particularly in aviation technology. The unending quest for speed resulted in the need for radical alternatives to piston engines. In Germany, Dr. Hans von Ohain was the first to complete a flight-worthy turbojet engine for aircraft. It was installed in a Heinkel-designed aircraft, and the Germans began the jet age on August 27, 1939. The Germans led the jet race throughout the war and were the first to produce jet aircraft for combat operations. In England, the doggedly determined Frank Whittle also developed a turbojet engine, but without the support enjoyed by his German counterpart. The British came second in the jet race when Whittle's engine powered the Gloster Pioneer on May 15, 1941. The Whittle-Gloster relationship continued and produced the only Allied combat jet aircraft during the war, the Meteor, which was relegated to Home Defense in Britain. In America, General Electric copied the Whittle designs, and Bell Aircraft contracted to build the first American jet plane. On October 1, 1942, a lackluster performance from the Bell Airacomet, ushered in the American jet age. The Yanks forged ahead, and had numerous engine and airframe programs in development by the end of the war. But, the Germans did it right and did it first, while the Allies lagged throughout the war, only rising to technological prominence on the ashes of the German defeat. Pavelec's analysis of the jet race uncovers all the excitement in the high-stakes race to develop effective jet engines for warfare and transport.
Author: Roy D. Hager
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 140
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 48
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Book Description
Author: Peter Spring
Publisher: Air World
ISBN: 1526773511
Category : History
Languages : en
Pages : 309
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Book Description
By the mid-1930s the obstacles to high speed that aircraft designers faced included the question of cooling the engine. This was a big challenge that those working on the new fast aeroplanes entering service as the war clouds gathered over Europe had to consider, as the drag from the system increased as a square of the speed. Ducted systems were designed which lowered drag, but these were based on the assumption that the system was cold. This ignored the potential energy from the air, heated by the radiator, for liquid-cooled aircraft, and from the discharged engine exhaust gases. It took a profoundly lateral thinker to harness the possibilities of the paradox that heat could cut the cost of cooling. That thinker was the British engineer Frederick William Meredith. A researcher at the Royal Aircraft Establishment at Farnborough until 1938, F.W. Meredith a key player in the UK’s development of the autopilot and remote-controlled aircraft. His contribution to Allied success in the Second World War was enormous – but, incredibly, he was also a known a Soviet agent. Few would doubt that the Supermarine Spitfire was a pioneering aeroplane – not because it was an all metal, monoplane with retractable undercarriage and enclosed cockpit as these were not unique – but because it was the first to incorporate a Meredith designed ducted cooling system. This was intended from the beginning to use heat to create ‘negative drag’. In practice the Spitfire’s design was flawed, as Meredith himself pointed out, and did not fully use what became known as the ‘Meredith Effect’. Meredith also made entirely overlooked but extremely important contributions to resolving the problem of how to induce air smoothly into cooling ducts at high speeds without which, as the Spitfire demonstrated, ducted cooling systems worked sub-optimally. The first aeroplane properly to exploit the ‘Meredith Effect’ was the North American P-51 Mustang, this being a very significant factor as to why it was 30mph faster than the Spitfire when both had the same Rolls-Royce Merlin engine. This book by Peters Spring examines the life of the remarkable, and controversial, F.W. Meredith, an individual who has largely been forgotten by history despite the brilliant advances he made – advances which helped the Allies win the war against Hitler’s Third Reich.
Author: R. Narayanan
Publisher: CRC Press
ISBN: 1482286351
Category : Architecture
Languages : en
Pages : 187
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Book Description
The constant need for cost-effective structural forms has led to the increasing use of composite construction, and a substantial amount of research effort is currently being spent in developing techniques for combining concrete and steel effectively. Significant economies in this form of construction have been observed, especially in bridges and building floors. Codes of Practice on composite construction are being revised in the UK and in Europe, in the light of the substantial amount of knowledge that has been generated in recent years. An International Conference organised by the Department of Civil and Structural Engineering, University College, Cardiff, UK, with the specific objective of discussing all types of metal structures in an integrated way, provided a forum for the dissemination of new concepts and for reviewing developments; the expectations of the organisers have been amply justified and exceeded by the level of international response to the call for papers. This volume contains 17 papers on composite steel structures, presented at the Conference, many of which were by well-known experts in their respective fields.
