Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"airships"”.
-
Rediscovering the arcane science of ground handling large airships : an investigation into ways of reducing the risks inherent in the development of a new generation of very large airships and of establishing guidelines for their ground handling procedure
… handling and support systems of the large rigid airships (commonly known as "Zeppelins") that were built between 1900 and 1940. The intention was to assess the value of such historical information as has survived from the previous generation of very large airships in order to minimise the …
-
Evaluation of a heated-air airship for the environment of Titan
… of Saturn's moon Titan can be carried out by airships, which have the capability to study the atmosphere as well as the capability to land and study the surface at multiple locations. Several lighter-than-air gas airships and passive drifting heated-air balloon designs have been studied, but a …
-
Guidance, Navigation and Control of a Fly-By-Wire Transport Category Airship Designed for Hover Cargo Delivery
… operations. Owing to the large body area, most airships require that they be pointed into the wind to maintain their position. This research aims at controlling an airship attitude and position during hover cargo delivery, irrespective of the wind direction.</p> <p>Control laws were developed …
-
Plans and planes: United States Army aviation in American colour-coded war plans, 1920-1939
The use of airplanes and rigid airships during the First World War forever transformed the way the nations around the world would wage war. By the time the Americans joined the fray, air power had become an integral element of modern warfare. During the interwar period, United States Army war …
-
Performance of CDMA power control for HAPS
… High Altitude Platforms (HAPS). HAPS are either airships or aircraft positioned between 17 and 22.5 km above the earth surface. It has capability to deliver a wide spectrum of applications to both mobile and fixed users over a broad coverage area. Wideband code division multiple access (WCDMA) …
-
Rivals in the sky : the developmental relationship between the airship and the airplane.
On May 6, 1937, the Hindenburg exploded. In the popular mind, this catastrophe ended the long reign of the rigid airship. In actuality, realistic prospects for the widespread use of the airship ceased in 1918 with the end of the First World War. Airplanes and seaplanes quickly moved from …
-
Advances in electroaerodynamic thrusters for aircraft propulsion
… to be a feasible form of propulsion for airships and, recently, for airplanes. A major challenge that has to be overcome is that EAD thrusters have a low thrust density (thrust per unit volume or frontal area) compared to conventional propulsion systems, such as propellers. This thesis …