Lighter Than Air

Behold the story of Sophie Blanchard, an extraordinary woman who is largely forgotten despite her claim to being the very first female pilot in history. In eighteenth-century France "balloonomania" has fiercely gripped the nation ... but all of the pioneering aeronauts are men. The job of shattering that myth falls to a most unlikely figure: a shy girl from a seaside village, entirely devoted to her dream of flight. Sophie is not the first woman to ascend in a balloon, nor the first woman to accompany an aeronaut on a trip, but she will become the first woman to climb to the clouds and steer her own course. The words of Matthew Clark Smith bring Sophie's story to light after so many years, while Matt Tavares' atmospheric art and unique perspectives take her to new heights.

Looks at the history of balloons and airships, from Archimedes' discovery of the principle of buoyancy to the present day.

There has always been a sense of romanticism attached to balloons, as they glide effortlessly and soundlessly in a world of their own. However, the history of balloon flight is often underestimated, as are the fascinating scientific breakthroughs that can be attributed to it.

This transcript from hearings before the Subcommittee on Science, Technology, and Space of the Committee on Commerce, Science and Transportation of the United States Senate includes a variety of witness statements and technical submissions including material from Goodyear Airships Programs, the U.S. Navy, NASA Lighter-than-Air Project Office, Piasecki Aircraft Corp., the U.S. Forest Service, Hov-Air-Ship Inc., and Senator Barry Goldwater. Primary uses discussed in detail are transportation and emplacement of very heavy assemblies and subassemblies encountered in the construction industry, and long-endurance surveillance of the coastal zone.

An aerial robot is a system capable of sustained flight with no direct human control and able to perform a specific task. A lighter than air robot is an aerial robot that relies on the static lift to balance its own weight. It can also be defined as a lighter than air unmanned aerial vehicle or an unmanned airship with sufficient autonomy. Lighter than air systems are particularly appealing since the energy to keep them airborne is small. They are increasingly considered for various tasks such as monitoring, surveillance, advertising, freight carrier, transportation. This book familiarizes readers with a hierarchical decoupled planning and control strategy that has been proven efficient through research. It is made up of a hierarchy of modules with well defined functions operating at a variety of rates, linked together from top to bottom. The outer loop, closed periodically, consists of a discrete search that produces a set of waypoints leading to the goal while avoiding obstacles and weighed regions. The second level smoothes this set so that the generated paths are feasible given the vehicle's velocity and accelerations limits. The third level generates flyable, timed trajectories and the last one is the tracking controller that attempts to minimize the error between the robot measured trajectory and the reference trajectory. This hierarchy is reflected in the structure and content of the book. Topics treated are: Modelling, Flight Planning, Trajectory Design and Control. Finally, some actual projects are described in the appendix. This volume will prove useful for researchers and practitioners working in Robotics and Automation, Aerospace Technology, Control and Artificial Intelligence.

Neville Florian Usborne entered the Royal Navy as a cadet in 1897. In the years between him joining up and the outbreak of the First World War, he engaged in a huge number of enterprises and endeavours. Praise and respect garnered in accordance with his achievements all helped to establish his reputation in later years as an 'irreplaceable' pioneer and a leading light of early British airship design. His fertile imagination and enterprising spirit fused to form a dynamic personality, able in wartime to draw up countless schemes in an effort to outwit the enemy. His chief task during the Great War was to dream up new tactics and designs to combat the Zeppelin menace, perceived as one of the most damaging threats of the entire conflict. He was also deeply involved in the design of the very successful SS and Coastal Class airships; indeed, during 1915 he was actually appointed Inspector Commander of Airships at the Admiralty. Unfortunately, his illustrious career was destined to be cut short in 1916 when he was killed testing a prototype of one of his own designs. This new biography seeks to shine a light on an overlooked pioneer of early aviation and it does so in entertaining and reverential style. The importance of Usborne the pioneer is made plain; as one of his contemporaries commented upon his death No one can talk of the early days of British airship design without mention of his name and work. A personality was lost on that February day which was irreplaceable.