2015
Aerospace & Defense

I have been working lately on shielding against radiation in space which does not cost over $100,000 U.S. dollars to shield a cylinder 5 meters in diameter and 15 meters long against harmful radiations in space. The two competing most qualified candidates for shielding against such radiations with respect to the given budget limit are polyethylene and water. Water has an advantage of costing less per volume compared to polyethylene material that can be obtained from manufacturers but not the polyethylene plastics that came from the garbage. Using recycled plastic bags from the garbage doesn't cost at all except that it has to be cleaned with water and germicidal solution like the low-cost brine before using it for a ...

Hybrid rocket propulsion is a promising propulsion system which presents appealing features such as safety, low cost and environment friendliness. On the other hand certain issues like low regression rates, mixture ratio shifting, mixing inefficiencies, etc. restrict its use as a preferred propulsion system. The present investigation presents an approach for improvement of one of the most important among those issues, namely low fuel regression rate.

Fuel regression rate can be increased by increasing oxidizer flow speed over the burning fuel surfaces. This is because flow over the burning surface creates shear stress which facilitates fuel and oxidizer mixing. One method of improving shear stress and thus regression rate is to induce an oxidizer vortex into the ...

Riscram™ Rocked Ignited Supersonic Combustor Ramjet. Propulsion system for hypersonic aircraft with supersonic combustor. Mach 0 to 30 - Earth Sea Level to Space Exosphere.

What: this invention relates to a propulsion system for hypersonic aircraft configured to operate from a fixed point to hypersonic steady state speed and from an altitude at sea level to an altitude which comprises the terrestrial exosphere. More specifically, this invention relates to a propulsion system for hypersonic aircraft having a supersonic combustor which is ignited by a rocket, in other words, a propulsion system for hypersonic aircraft having a supersonic RAM combustor which is ignited by a rocket.

How: described is a propulsion system for hypersonic aircraft, having an air inlet of ...

Loss Of Control In-flight (LOC-I) is the most frequent cause of General Aviation accidents and incidents. The proposed concept aims at preventing the risk of occurrence of a LOC-I by providing an indication of the current margins to aerodynamic stall conditions, the most frequent cause of LOC-I. Such indication is based on a derived aircraft angle of attack (AoA) computation and is shown to the pilot by means of a graphical interface integrated into the Primary Flight Display or the Multi-functional Flight Display. A colored vertical bar is used with two indicators that represent AoA with flaps up and flaps down configurations, in order to show instantly the energy state of the airplane in either configuration and to enable ...

Modern rocketry industry faces nowadays the full impact of a fully competitive market with a restricted access to manpower. Complex processes inherited from the massive investments of the rocket race age are today a source of risk despite their seemingly economic attractiveness. Simplification of components impact then directly the overall efficiency of rockets. The usages of technologies exposed here are intended to erase parts of the nodes of complexity present on existing systems for boosted ascent and boosted recovery phases.

By beaming a laser source on the gas chamber of a gas generator functioning on a rich fuel mode, we have reduced the needs for an onboard heat generation medium such as is typically the usage of an Oxidizer ...

Numerous commerce and shipping companies are currently developing unmanned delivery concepts for every day products, but what about those not so usual types of cargo? For example, returning experiments from orbit or delivering critical supplies to remote disaster victims or other people in immediate need.

Current practice for space operations is to perform the experiments and gather data for transmission back to the ground or return the experiments via capsules. The former case may be limited in the quantity and quality of on orbit equipment while the latter may be dependent on a reliable and affordable ride back to Earth. The latter case is also subject to landing accuracy issues such of weather and atmospheric entry variations which typically ...

Smart Materials to Improve Aerodynamic Efficiency

The morphing technology, inspired by bat and bird flight, can enable an aircraft to adapt its shape to enhance mission performance and optimize flight altitude controlling efficiency. Present day aircraft structure is greatly influenced by morphing at different points of time. Morphing indicates gradual change in the shape of any object by varying the cross section. It is achieved with the help of electrical actuators in the earlier scenario and gets upgraded with smart materials like Piezo-electric and shape memory alloys. Among the identified smart materials, Shape memory alloys have attracted a great interest by many researchers as a promising morphing wing material because of its shape recovery upon application of voltage. Shape ...

SPoSER (Solar Powered Surveillance and Exploration Robot) is a 6WD terrestrial robotic platform with real-world applications to either aerospace/military/defense or environmental sectors. Typical applications may be surveillance of a dangerous area by the police or army, or monitoring of hazardous environments (e.g. nuclear accident), continuously providing, next to the real-time video, loads of vital measurements (e.g. radiation level). Its main advantage over other low-cost (1000-2000 euros) commercial platforms in the market is that it can operate over an unrestricted period of time due to the solar energy, and provides also a friendly user graphical interface (GUI) for interacting with the vehicle and the onboard sensors. Besides this, it is expandable to accommodate a wide range of sensors and mechanical ...

·1; Rotary-Turbo-InFlow Tech . Featured Development - GEARTURBINE PROJECT Have the similar basic system of the Aeolipilie Heron Steam Turbine device from Alexandria 10-70 AD * With Retrodynamic = DextroRPM VS LevoInFlow + Ying Yang Way Power Type - Non Waste Looses *8X/Y Thermodynamic CYCLE Way Steps. Higher efficient percent. No blade erosion by sand & very low heat target signature Pat:197187IMPI MX Dic1991 Atypical Motor Engine Type

Shape-Mass + Rotary-Motion = Inertia-Dynamic / Form-Function Wide [Flat] Cylindrical shape + positive dynamic rotary mass = continue Inertia positive tendency motion. Kinetic Rotating Mass. Tendency of matter to continue to move. Like a Free-Wheel.

-This innovative concept consists of hull and core where are held all 8 Steps of the ...

NASA’s Langley Research Center has developed a synthetic 3D visualization flight display, which presents flight data information in an intuitive way using 3D computer graphic capabilities. The flight crew can preview and rehearse flight maneuvers in a realistic environment. The display also provides an unimpeded visualization of the surrounding environment in the case of inclement weather, enabling safer flying conditions. Flight crews can rewind/fast forward/pause to certain areas of an approach or go-around and discuss abort strategies or point out dangerous terrain. New pilots can safely train on upcoming flights because of the intuitive and easy-to-follow technology. Seasoned pilots will notice the current paper chart arrangement but with information presented in a quickly interpretable manner. Flight crews can use ...

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