Dr william wolf (47 résultats)

Paperback. Etat : new. Paperback. The XB-40 and XB-41 were secret, little-known experimental modifications of the B-17F and B-24D, respectively, into heavily-armed bomber gunships sometimes referred to as bomber escorters.They were developed during early World War II in response to the lack of a USAAF long-range fighter aircraft able to escort and protect regular B-17 formations making the round trip from Britain deep into Germany. Unfortunately, these protecters were found wanting in several ways - after the addition of guns and ammunition they became overweight and tail-heavy causing center of gravity problems. Each encountered numerous delays in the development and delivery of their various armament additions and improvements, particularly the Bendix chin turret.In the end, the YB-40 participated in only 14 lackluster operational service test missions during mid-1943 before being withdrawn from service. The XB-41 Liberator never saw operational testing before also being cancelled for its poor performance. The failure of the gunship concept left a huge hole in the capabilities of the Eighth Air Force. However, it spurred the adoption of the Merlin-powered P-51 Mustang, the outstanding escort fighter that was key to Allied victory in the air war over Europe.Using many formerly-classified documents from his large microfilm collection, William Wolf presents their previously-unpublished history. It describes in depth for the first time the politics and development and associated problems of both escorter types. Before the P-51 Mustang, the USAAF planned to use heavily-armed converted Flying Fortresses and Liberators to escort the Eighth Air Force's formations over Germany. This is the first history of their development, role, and failure, by an expert USAAF historian. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. Tooby, Adam (illustrateur).…

paperback. Etat : New. Douglas XB-19: America's giant World War II intercontinental bomber: 16 (X-Planes) Brand new item sourced directly from publisher. Packed securely in tight packaging to ensure no damage. Shipped from warehouse on same/next day basis. Tooby, Adam (illustrateur).

Etat : New. 2020. Paperback. . . . . . Tooby, Adam (illustrateur).

Etat : New. 2020. Paperback. . . . . . Books ship from the US and Ireland. Tooby, Adam (illustrateur).

paperback. Etat : New. Tooby, Adam (illustrateur).

paperback. Etat : New. Tooby, Adam (illustrateur).

Paperback / softback. Etat : New. New copy - Usually dispatched within 3 working days. Tooby, Adam (illustrateur).

Hardcover. Etat : New. Etat de la jaquette : New. 1st Edition. New, unmarked. Offers the first in-depth examination of American air to ground attack, where four times as many pilots were lost than were lost against the Luftwaffe in aerial combat. Chronicles the vital role played by fighter-bombers over the Mediterranean and northwest Europe // Shipped carefully packed in a sturdy box.…

Hardcover. Etat : Very Good. No Jacket. Hard bound, in dust jacket. [ Heavy - Please contact for overseas shipping quote ].

Hardcover. Etat : Very Good. Etat de la jaquette : Very Good. 1st Edition. Hard bound in dust jacket. [Heavy - Please contact for overseas shipping quote ].

Hardback. Etat : New. New copy - Usually dispatched within 4 working days.

Hardback. Etat : New. New copy - Usually dispatched within 4 working days.

Hardcover. Etat : As New. Etat de la jaquette : As New. This is a fine, as new, hardcover first edition copy in a fine, as new DJ, brown spine. MEDIA SHIPPING ONLY, extra for airmail or international shipping.

Etat : New.

Paperback. Etat : New. This collection features six peer-reviewed reviews on the economics of key agricultural practices.The first chapter assesses the economic impact of horticultural crops and integrated pest management programmes. The chapter highlights the importance of considering agricultural system design and the utilisation of novel control tactics.The second chapter considers the economic consequences of novel integrated weed management (IWM) strategies, as well as the different approaches used to assess the economics of IWM strategies.The third chapter reviews developments in methods to assess the economic value of agricultural biodiversity. The chapter also outlines the limitations of these methods and proposes a possible, novel way forward.The fourth chapter provides an overview of the economic barriers faced by smallholder farmers, including land, labour, capital and inputs, and their impact on farm profitability.The fifth chapter reviews the economics of soil health, focussing on the adoption of soil health management practices by farmers and the effectiveness of incentives.The final chapter examines the use of economic research as a tool to determine the profitability and adoption potential for a number of precision agriculture technologies.…

Paperback. Etat : New. This book features four peer-reviewed reviews on the economics of key elements of agriculture.The first chapter describes the economic potential for the widespread adoption of agricultural robotics worldwide, focussing primarily on adoption in low- and middle-income countries. The chapter also considers the broader implications of agricultural robotics adoption on the farm sector.The second chapter explores the large and diverse literature on the economics of nitrogen in agriculture and the economics of off-farm impacts from nitrogen fertilisation. The chapter also considers the over-application of nitrogen fertilisers and their contribution to nitrogen pollution.The third chapter summarises recent advances in the development of novel integrated weed management (IWM) strategies and the economic consequences of their use in farming systems. The chapter also reviews the economics of different IWM strategies and the contrasting approaches used to assess their efficiency.The final chapter discusses the use of groundwater for agricultural use and how unregulated overdevelopment of this key resource poses a threat to its sustainability. This chapter presents several approaches to groundwater governance and evaluates the appropriateness of each approach using socioeconomic theory. …

Paperback. Etat : New. This collection features six peer-reviewed reviews on the economics of key agricultural practices.The first chapter assesses the economic impact of horticultural crops and integrated pest management programmes. The chapter highlights the importance of considering agricultural system design and the utilisation of novel control tactics.The second chapter considers the economic consequences of novel integrated weed management (IWM) strategies, as well as the different approaches used to assess the economics of IWM strategies.The third chapter reviews developments in methods to assess the economic value of agricultural biodiversity. The chapter also outlines the limitations of these methods and proposes a possible, novel way forward.The fourth chapter provides an overview of the economic barriers faced by smallholder farmers, including land, labour, capital and inputs, and their impact on farm profitability.The fifth chapter reviews the economics of soil health, focussing on the adoption of soil health management practices by farmers and the effectiveness of incentives.The final chapter examines the use of economic research as a tool to determine the profitability and adoption potential for a number of precision agriculture technologies.…

Paperback. Etat : new. Paperback. The XB-40 and XB-41 were secret, little-known experimental modifications of the B-17F and B-24D, respectively, into heavily-armed bomber gunships sometimes referred to as bomber escorters.They were developed during early World War II in response to the lack of a USAAF long-range fighter aircraft able to escort and protect regular B-17 formations making the round trip from Britain deep into Germany. Unfortunately, these protecters were found wanting in several ways - after the addition of guns and ammunition they became overweight and tail-heavy causing center of gravity problems. Each encountered numerous delays in the development and delivery of their various armament additions and improvements, particularly the Bendix chin turret.In the end, the YB-40 participated in only 14 lackluster operational service test missions during mid-1943 before being withdrawn from service. The XB-41 Liberator never saw operational testing before also being cancelled for its poor performance. The failure of the gunship concept left a huge hole in the capabilities of the Eighth Air Force. However, it spurred the adoption of the Merlin-powered P-51 Mustang, the outstanding escort fighter that was key to Allied victory in the air war over Europe.Using many formerly-classified documents from his large microfilm collection, William Wolf presents their previously-unpublished history. It describes in depth for the first time the politics and development and associated problems of both escorter types. Before the P-51 Mustang, the USAAF planned to use heavily-armed converted Flying Fortresses and Liberators to escort the Eighth Air Force's formations over Germany. This is the first history of their development, role, and failure, by an expert USAAF historian. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. Tooby, Adam (illustrateur).…

Paperback. Etat : new. Paperback. The XB-40 and XB-41 were secret, little-known experimental modifications of the B-17F and B-24D, respectively, into heavily-armed bomber gunships sometimes referred to as bomber escorters.They were developed during early World War II in response to the lack of a USAAF long-range fighter aircraft able to escort and protect regular B-17 formations making the round trip from Britain deep into Germany. Unfortunately, these protecters were found wanting in several ways - after the addition of guns and ammunition they became overweight and tail-heavy causing center of gravity problems. Each encountered numerous delays in the development and delivery of their various armament additions and improvements, particularly the Bendix chin turret.In the end, the YB-40 participated in only 14 lackluster operational service test missions during mid-1943 before being withdrawn from service. The XB-41 Liberator never saw operational testing before also being cancelled for its poor performance. The failure of the gunship concept left a huge hole in the capabilities of the Eighth Air Force. However, it spurred the adoption of the Merlin-powered P-51 Mustang, the outstanding escort fighter that was key to Allied victory in the air war over Europe.Using many formerly-classified documents from his large microfilm collection, William Wolf presents their previously-unpublished history. It describes in depth for the first time the politics and development and associated problems of both escorter types. Before the P-51 Mustang, the USAAF planned to use heavily-armed converted Flying Fortresses and Liberators to escort the Eighth Air Force's formations over Germany. This is the first history of their development, role, and failure, by an expert USAAF historian. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability. Tooby, Adam (illustrateur).…

Etat : NEW.

Etat : NEW.

Hardcover. Etat : Very Good. Etat de la jaquette : Very Good. 1st Edition. Includes hundreds of b/w photographs. 464pp. Slight crimp to upper DJ edge. This book weighs 2.6kg, please enquire for delivery options prior to ordering.

Etat : New. In.

Etat : New. In.

Etat : New. &Uumlber den AutorWilliam WolfInhaltsverzeichnis1. Bomber Escorter Concept2. XB-40/YB-40 Bomber Escorter3. XB-41 Bomber Escorter4. Other Bomber EscortersFurther ReadingIndexKla. Tooby, Adam (illustrateur).

Paperback. Etat : new. Paperback. Merriam Press Military Monograph 53. Fifth Edition (April 2012). This is the first account to be published in English of two relatively little-known "secret weapons" of the Luftwaffe. The Hs 293 guided missile was used against Allied shipping and naval forces in the latter stages of the war with some success. Covers development and operational history of the Hs 293 in considerable detail, as well as proposed variants and the tactics used against their targets. Although not as well known as the Hs 293, the Fritz X guided missile could have dealt considerable havoc on Allied warships and merchant shipping during World War II, and did achieve some operational successes. Covers development and operational history of the Fritz X in detail, and tactics used against their targets. Contents: * Introduction * Henschel Hs 293 * Ruhrstahl SD 1400X "Fritz X" * Appendix 1: Allied Intelligence Report on the Henschel Hs 293 * Appendix 2: Allied Intelligence Report on the SD 1400X "Fritz X" Radio-Controlled Bomb * Bibliography * 39 photos * 7 illustrations * 7 multi-view drawings * 2 cutaways * 3 camouflage/markings drawings * 7 side view drawings. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Etat : New. &Uumlber den AutorWilliam Wolf was a dentist for 22 years in Ft. Lauderdale, Florida, before retiring at the age of 45 to pursue his aviation interests and outdoor pastimes of hiking, mountain climbing, road and mountain biking, and sea.

Etat : New. &Uumlber den AutorWilliam Wolf was a dentist for 22 years in Ft. Lauderdale, Florida, before retiring at the age of 45 to pursue his aviation interests and outdoor pastimes of hiking, mountain climbing, road and mountain biking, and sea.

Paperback. Etat : Brand New. 94 pages. 0.90x6.00x9.00 inches. In Stock.

Paperback. Etat : New. This collection features six peer-reviewed reviews on the economics of key agricultural practices.The first chapter assesses the economic impact of horticultural crops and integrated pest management programmes. The chapter highlights the importance of considering agricultural system design and the utilisation of novel control tactics.The second chapter considers the economic consequences of novel integrated weed management (IWM) strategies, as well as the different approaches used to assess the economics of IWM strategies.The third chapter reviews developments in methods to assess the economic value of agricultural biodiversity. The chapter also outlines the limitations of these methods and proposes a possible, novel way forward.The fourth chapter provides an overview of the economic barriers faced by smallholder farmers, including land, labour, capital and inputs, and their impact on farm profitability.The fifth chapter reviews the economics of soil health, focussing on the adoption of soil health management practices by farmers and the effectiveness of incentives.The final chapter examines the use of economic research as a tool to determine the profitability and adoption potential for a number of precision agriculture technologies.…