Aerospace & Defense

Order by: [ Title ] [ Date ] [ Views ]

Earth exerts a gravitational force and pulls down every object that attempts to leave or escape it. Therefore, in order to break free from Earth’s gravitational pull, it is essential for a rocket to attain an enormously high speed. This velocity is known as the ‘escape velocity’. For Earth, the escape velocity value is 11.2 kilometers per second (25,020 mph); this means that you have to accelerate a rocket at 11.2 kilometers per second in order to make the orbit.

This project is about building a mechanism that uses gravitational force to launch space shuttles instead of against it to achieve the escape velocity with lower cost. This is done by integrating roller coaster principle, Newton law and existing ...

Many peoples travel through jungles and cross a river for many reasons, like for research and hiking and many others. While doing so, many peoples get attacked by wildlife when passing by because peoples are not aware of which animals are nearby. Animal attacks have been identified as a major public health problem. "Unprovoked attacks occur when the animal approaches and attacks a person(s) who is the principle attractant, for example, predation on humans. In 1997, it was estimated that up to 2 million animal bites occur each year in the United States. Injuries caused by animal attacks result in thousands of fatalities worldwide every year. Some of the world's deadliest animals include mosquitoes.which are estimated to kill about ...

The Exodus Space Corporation, a minority owned company with SBA 8(a) certification in process, is developing an innovative Horizontal Takeoff/Horizontal Landing (HTHL) Two-Stage-To-Orbit (TSTO) spaceplane design with the potential to finally provide the launch service capabilities for commercial space and eventually NASA. The success of this effort could represent a generational leap forward in responsive, reliable, and cost-effective access to Low Earth Orbit (LEO). The result of 10 years of evolving conceptual design, the Exodus AstroClipper spaceplane will employ a unique and patented (US patent #8528853 B2) horizontal-in-line configuration of its booster and orbiter stages into a blended wing body, taking maximum advantage of aerodynamic lift and of atmospheric oxygen to efficiently reach orbit. The baseline design of the ...

Reduction of drag and boosting of lift to drag ratio is of paramount importance to maximize flight efficiency. Body shape has a major role in producing drag. In order to reduce drag and increase lift to drag ratio I have successfully developed a new concept after spending several years to research. The concept is described below.

Using cycloid profile sideward acceleration smoothly changes from zero to peak then to zero so there would not by sudden impulses or momentum changes of fluid and sideward velocity of fluid smoothly changes from zero to peak and the to zero. This causes what’s known as 3D relieving, for example a cylinder has smooth up (y+) and down (y-) flow during a passage ...

Explaining how my device does the following:

a. Monitoring C02 levels in the immediate vicinity of the crew member, preferable near the mouth and nose:
The Proposed personal CO2 monitor is a portable, wearable Bluetooth device which is clipped to the upper body clothing of its user. It can be built with commercial IR sensors like the Arduino Analog Infrared CO2 Sensor or most preferably the “CozIR sensor” which are lightweight and use significantly less power so can be battery powered only needing to be charged after weeks or more of usage.

b. Is not obstructive so as to minimize crewmember discomfort and distraction:
The device is designed to have a small form factor, it is attached to the ...

The tactical smart gyroballcam grenade, or TSGBCG for short, has 2 camera sensors located on each opposing side of the gyroscope which include capabilities of infrared light, ultra violet and night vision incorporating zoomable abilities. TSGBCG manafactures 3 various models for varied situations: smoke dispersement grenade, a detonation grenade and gas dispersement grenade.

TSGBCGs use sensored detonation abilities or disbursement capabilities. TSGBCG is loaded onto a smart docking/charging holster on your hip or thigh. Hip/thigh charging docking station clips around thigh/hip with 3 adjustable comfort straps. Hip/thigh docking station plugs into an outlet to regain charge/power. Hip/thigh docking station can load charge 4/6 TSGBCGs. Once emptied of disbursement agents TSGBCGs can be refilled via leg docking station or on ...

Contrary to logic and general theory, a bullet with a flat tip moves in water several times faster than a bullet with a sharp tip. This effect is simply explained: a flat tip creates cavitation bubbles that rub on the rest of the bullet surface very slightly. That is, the total area of friction is reduced so much that it fully compensates for the enormous resistance of the flat tip.

Is it possible to achieve this effect in aerodynamics? Everyone says no, since cavitation is only a property of the fluid. But even in the '30s, it was proven that at high speeds the gas has fluid dynamics. Just this discovery allowed to improve cooling technology.
But what configuration ...

This drone has 4 new parts that can increase the load capacity and maneuverability many times:
• Turbopropellers are propellers with turbo expander in the center.
• Lifting body, which increases the load capacity by about 30%
• Vertical flaps that turn the resistance of the motor holders into useful work.
• Reactive cuts on the wings, which increase the load capacity and speed.

1. As is known, 1/4 central part of the propeller located above the motor does not perform work. Turboexpander makes this part work very efficiently. They can be of two types:
The first version is intended only for small drones and it has only central blades. They push air out of the middle and create ...

The Pulsed Turbine Transvector Jet Propulsion concept is a recently developed adaptation to the Pulsed Turbine Rotor Engine and The Pulsed Turbine Jet Propulsion concept.

Please click on hyperlink below:
http://www.tinyurl.com/Aerospace-Inventor

The transvector jet principle with optional water spray/steam thrust booster was envisioned to ensure ample thrust to vertically launch a VTOL jet propelled vehicle and speed up its transition to horizontal flight. This innovative idea could expedite the vehicle’s transition to horizontal flight from a vertical launch and consume less conventional fuel in the process.

Applying the same principle introduced by the Pulsed Turbine VTOL Gyro-Stabilized Jet Propulsion Platform, four identical Pulsed Turbine Jet Engines are linked physically by a central thrust vectoring transmission drive and also ...

Good News! The first practical lightweight jet-powered VTOL "car", "aircraft" is finally within reach. I'm presenting to all of you, an opportunity for one corporation or investor to make aviation history by capturing the elusive practical flying car that has been sought after for many decades. I am writing to you not as a professional engineer, designer or manufacturer. I am a total amateur, a hobbyist that has followed aviation accomplishments since childhood. But I've pursued my own independent line of reasoning, off from the beaten path of conventional thinking and I have designed and patented (U.S. Patent: US 6,907,723 B1 ) The Pulsed Turbine Rotor Engine, which I think will solve the technical issues involved in designing and ...

Page 7 of 8