The tail rotor takes up 10 to 15% of the power, and complicates the mechanics. Some time ago I checked available designs and was surprised to find test flights in Germany in 1942 and a Dornier design well, a design in 1991/1992. Either compressed air pushes low octane gas through the rotor blades and at the end a spark plug ignites the fuel, driving the blades D (1942), Jet exhaust to the tip of the rotors, or a Zoche diesel driving an impeller and pushing the air into the rotor blades. Yet none of the projects became commercial. Now, a new design by a French company, again using jet exhaust, however (as seen at the current Paris Air Show) ...
What would a super fuel-efficient aircraft look like; how far can we refine its aerodynamics; and what kind of performances, load capability and comfort can we expect from it?
The AGA-33 is a 250-passenger fuel-efficient twinjet that is optimized for 6000 km transatlantic missions. This aircraft will be constructed using known materials and mature technologies. This is something that can be done right now, and not “sometime in the future.”
To achieve better fuel-economy, the L/D (lift to drag ratio) has to be boosted by enlarging the wingspan, and reducing the wetted area. With a 68 meters wingspan, the AGA-33 aircraft achieves a L/D of 32. As a result, the fuel burn per passenger falls to 1.01kg ...
The world is currently experiencing rapid explosion in human population with a fixed land mass, thus, making a very constrained space available for agricultural practices. It is gradually coming to a point where agricultural products supply is no longer able to meet up with the demand, thereby causing an impending food shortage/crisis globally and a hike in food prices.
There is therefore the need for more efficient agricultural practices, especially in the areas of mixed cropping and crop rotation for maximizing the agricultural output of a particular piece of land within specific or over a continuous interval.
This solution aims to solve this problem by using specific quantity optimization methods to obtain the optimal number of ...
Many households do not consistently maintain their A/C filters (heating or cooling). Common education suggests that changing your filter every 30 days is sufficient. This catch-all number does not take into account the number of people, pets, other particle generators, or the location of the household.
The device I am currently working on is a very low cost, single AAA battery powered anemometer that is designed to track relative air-flow changes. When placed on an A/C return vent, it will monitor air-flow changes and send a positive alert (beeper and/or LED) when the filter needs replacing.
Newer A/C units often have a simple settable fixed timer to remind the household to change the filter or a more sophisticated method ...
Introduction – When we are going to a place by plane, there is always a chance for the plane to crash. If a plane crashes, then there is a lot of chaos and the passengers fight for a single parachute, after all everyone wants to save their own life. Most of the people don’t know the way to use the parachute and in mid air, it can happen that parachute does not work because there is a problem in the parachute, and then there life will be in danger. My futuristic design will give a solution to all these problems.
My Futuristic Technology – Air Life Saver
Basic Concept – All passengers will carry their own Air Life Saver ...
Tesla High Speed - High Volume Air Turbine
This device was originally created to cool a person or a few people off by way of a high speed high volume turbine and an ice chest, which worked wonderful by the way in cooling down a person or a small enclosed area such as work tent in digging ditches, or out in the heat such as desert climates.
We started out from an idea from Nikola Tesla who did a lot of work on fluid dynamics in the 1900’s. We took that idea and with some innovative thought produced a unit that can be built and used in different endeavors in all categories.
We first created models from wood to ...
Tractor overturns are still the main cause of fatalities on farms today. In most of these cases, the tractor was fitted with a foldable rollover protective structure (foldable ROPS). Although foldable ROPS should be returned to the upright position immediately upon exiting a low clearance environment, the truth is that the ROPS are usually kept down for different reasons: either it implies an effort for the driver to unfold the ROPS, or it is inconvenient to set the ROPS in the upright position, or simply the driver forgets to return the structure to the protection position.
As a response to this global problem, we have developed a ROPS made with telescopic bars that, thanks to inclinometer sensors and airbag ...
Introducing the AIRcable Smart Dimmer, a new in-wall light dimmer switch, designed with one driving criteria in mind: ease of use.
No complicated setup, unreliable powerline communication or wireless infrastructure is required to remotely control house lighting.
Ease Of Use Design
The AIRcable Smart Dimmer is elegantly designed with a standard deco rocker and tactile feedback. It is very easy to use by reducing the user interface to the absolute key essential functions.
- click the rocker and the light goes on or off
- click and hold the rocker to dim the light, changes direction when pressed again
- when the light is off, hold the button and it will start dimming from the lowest level
ALADDIN is a wireless switch. ALADDIN is activated by any remote available and uses the beam Infra Red (IR) emitted, operating with LED (Light Emitting Diode).
ALADDIN replacing the existing wall switch is installed at the point of lighting the area you wish to control.
With only point to the switch and press ALADINO any button on the remote control, this will enable or disable the switch, allowing the light on or off the premises, or on and off the computer to be controlled remotely.
ALADINO gives living comfort. It is advisable to avoid getting up to turn off the light when I sleep and fatigue has overcome by ensuring their health to put your feet on the cold ...
In the ever changing interior world of the ISS and other human inhabited space structures to come, modular adaptability of life support structures will be key. The already proven and very successful interior green wall technology that utilizes vertically arrayed plants, is increasingly integrated into modern homes and offices, offering numerous benefits for occupants. From air purification and oxygen generation to providing psychological benefits through more subtle qualities of beauty and aesthetic enhancement, green wall systems are a desirable feature for enclosed spaces, especially those that will be found in space.
With interior volume and surfaces at a premium, the benefits to having modular sections, or mats of algae, moss, or other compact plantlife which recycles air and are ...
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