Showing posts with label aircraft. Show all posts
Showing posts with label aircraft. Show all posts

Monday, 12 December 2016

NASA’s Double Bubble D8

Double Bubble D8
NASA has long been longing at ways to revolutionize the air travel which has not seen any great technological advancement in the recent past. NASA has come up with a new design which can be fitted right into the aircraft’s wings. This new radical design is related to the segment of Double Bubble D8 which focuses on fitting the plane with extra equipment to increase its agility, speed and performance. NASA study has shown that this new design will help in boosting the fuel efficiency of the air crafts by eight percent through dramatically reducing the drag as well as weight of the future planes.

NASA working on a super project

NASA is actively engaged in testing new fan and inlet design at its Glenn Research Center in Cleveland. Currently the design of jet aircraft ensures that the engines are located quite away from the aircraft body in order to avoid the slow flowing air which usually develops along the plane’s surface. This is also known as boundary layer.

NASA engineers have devised a new way of reducing the fuel burn through embedding the aircraft engine into these surfaces. Doing away with the boundary layer aircraft will generate the propel ability right through its mission with less fuel usage. NASA engineers are currently in testing phase but they are hopeful that the new design and required enabling technologies will help in revolutionizing the air transportation in near future.
How the testing is carried out?

Testing is an integral part of development of new design and its enabling technologies in order to make it safer for wide usage in future. NASA is conducting highly experimental test which will certainly require years of preparation but it will help in removing all the doubts about it in the right fashion. Research team will be testing out the new technology and hardware by pushing it against varying wind speeds and boundary layer thickness as well as the fan operation. This research will also help a number of aircraft design being pursued by the NASA along with other private and academic industry partners.

NASA has plan to get this ‘double bubble or D8’ into a twin hull plane for better fuel efficiency and lesser load and unload time factor. The design for Double Bubble D8 craft was developed in 2008 by Aurora Flight Sciences and MIT. NASA has given a contract worth $2.9 million to a company for developing a scale model of the aircraft. So far in terms of innovation only X planes has made distinct name for itself by breaking the sound barrier.

Benefits of the D8

In a nutshell this new design forwarded with the D8 will bring about a number of benefits which includes increased fuel efficiency, less community noise, improved air quality, heightened passenger experience, greater airport compatibility and faster boarding and deplaning. However the best thing worth noting about the D8 is that it will help in enhancing the efficiency of the planes at transonic cruise speeds.

Tuesday, 8 November 2016

A New Twist on Airplane Wing Design

In one of his greatest work “Codex on the Flight of Birds”, Leonardo da Vinci provided some unique study with almost 500 sketches of flying machine, which is the basis of modern Airplane technology in the contemporary society. The Wright brothers have accomplished the maiden powered flight over hundred years ago, which was controlled by using pulleys and wires to twist and bending of the wings, made of wood and canvas.

Although this system is a quite different one, that is propelled by hinged flaps and the ailerons, which are being used in most of the aircraft since its inception. The aircraft technology has developed in many ways in the last few decades and witnessed some of the most advanced elements in the design and technical know-how.

Now the engineers from MIT and National Aeronautics and Space Administration (NASA) have developed some hi-tech enchantment, with a new version of bendable and “morphing” wing. This new technology is having some unique features and simplified process of manufacturing that reduces the consumption of fuel by improving the aerodynamics of wings. Some of the features of this basic concept are as follows:
  • The fundamental principle at the back of this new concept is the simple use of an arrangement of tiny and lightweight structural components, which are referred as “digital materials” and can be assembled into almost infinite assortment of shapes. This is such a simple structure manufacturing that can be compared even with the formation of configuration with the help of Lego blocks. The separate pieces are quite strong and rigid in nature, but it can be noted; the precise choice of sizes and the materials and most importantly the geometry of the assembling of pieces, which allow for the exact tuning of suppleness of the shape.

  • According to researchers; the building up of such large and intricate structure, from an arrangement of tiny and indistinguishable building blocks, which have the exceptional grouping of strength, flexibility and light weight, simplifies the manufacturing process to a great extent. This modular structure is also providing the greatest ever simplicity in both the assembly and the disassembly of the construction that means; when the structure is not been needed, it can be dismantled and the entire structure can be taken apart by segregating its separate component parts, which can be reassembled and used for creating some other kinds of structures.

  • Being the composition of different tiny parts; repairing process is also very easy and can be done in a very simple manner e.g. just by replacement of the damaged subunits in a very comfortable manner. The “skin” or the outer coat of the wings is also enhancing the performance of the structure. This “Skin:” is made with the technology of overlapping strips, made of flexible materials and layered as bird’s feather or somewhat like fish scales, which allows the pieces in moving across, while the wings flexes but still provide the most smoothened outer surface. It is ascertained that the primary use of this technology can be for making of tiny and robotic aircraft at the initial stage.

Monday, 25 July 2016

PAK-DA Bomber Capable Of Launching Nuclear Weapons From Space

PAK-DA Bomber

Russia’s Hypersonic Rocket-like-Jet - Five Times Speed of Sound

Russia intends developing a hypersonic rocket like jet that could strike targets from space with nuclear missiles. PAK-DA Bomber, Flying five times the speed of sound, the rocket would be capable of reaching any point on the earth in less than two hours. Said to be the first of its kind, it would be capable of dropping a nuclear warhead before coming back to its base in Russia. According to Colonel Alexei Solodovnikov, who has been working on the project, by 2020, a well-designed engine will be established.

He had informed that PAK-DA Bomber would be a strategic aircraft and will fly into outer space in order to strike; utilising nuclear bombs and will then return to the airfield. The test engine for the PAK-DA bomber is said to be shown at the Army 2016 International Military Technology Forum near Moscow in September.

The commander of Russian Strategic Missile Forces, Colonel General Sergei Karakayev, has confirmed that the model engine for the PAK-DA Bomber has been built and has been tested successfully. He had stated that `an engine for a promising space plane has been created at Strategic Rocket Forces Academy and the unit’s operational ability has been verified.The notion is that the bomber would be taking off from a normal home airfield to patrol Russian airspace’.

Strike Target with Nuclear Warhead & Return to Home Base

He further added that on command it will ascend into outer space, striking a target with nuclear warheads and return to its home base. It will be using hypersonic speed in rocket mode. As per the Strategic Missile Forces Academy, the engine would be operated in two modes wherein one would be utilising kerosene fuel for conventional flight while the other would be using methane and oxygen to power the craft into space.

Reaction Engines, a British firm states that its own hypersonic engine would be ready by 2020. Over £7.5 million has been invested by the European Space Agency towards the development of the SABRE engine that would enable aircraft to fly anywhere in four hours. The U.S. officials have not been revealed whether their own next generation bomber would be flying at hypersonic speed, though the US Air Force in 2007 had stated that its aircraft would probably be subsonic in order to control the cost. Flying hypersonic would mean flying at Mach 5, five times the speed of sound at around 3,840mph or quicker.

Taranis Aircraft – Most Advanced Built by British

The closest programme of Britain to the Russian hypersonic jet is said to be a confidential stealth drone which is being developed by BAE Systems and the £200 million Taranis aircraft is said to be the most advanced built by the British engineers. It is likely to offer the basis for fleets in supersonic unmanned bombers which could attack into the enemy territory while escaping sophisticated defences. A RAF source had commented that the RAF has a futuristic programme `Taranis’ which is stealth drone having similar capabilities though does not operate in outer atmosphere.

The presently fastest jet of Britain is the Eurofighter Typhoon which tends to have a top speed of about Mach 2 or 1,550 mph. With regards to US capabilities compared to the Russians’ the source of RAF has stated that whatever one can imagine in the wildest dreams, the US has perhaps been ahead by thirty years on it. If the Russians have been developing it, the US would already be much ahead.

Friday, 22 July 2016

4,000mph Hypersonic Plane Backs Revolutionary Sabre Engine

Our world is becoming so fast that even a few minutes or seconds delay can cause huge losses and problems for us. Transportation and communication sector has gone through a rapid phase of development in the recent past which helped in lowering the costs and time taken for travel along with increasing the mobility.

European Space Agency is looking to make people lives more fast literally by investing $11 million for developing a hypersonic engine with the ability to fly anywhere across the planet within four hours. Reaction Engines has landed up with the job of developing such engine turbine which encompasses the technologies of both jet and rocket in order to achieve an unbelievable five times the speed of sound. Reaction Engines have confirmed that they will be able to come up with the first prototype for testing by the year 2020.

Reaction Engines were going through the period of securing investment from the companies and agencies. So far it has secured about $66 million from the British government and $55 million from the UK Space Agency. The development of the aircraft is still in its preliminary stages and it will take about 20 more years to make it reality on a grand scale.

How Sabre Jet engine works? 

Reaction Engines are working on the revolutionary Sabre engine which would eventually allow aircrafts to take off from the runway and get to the fives times the speed of sound within few seconds. Later on aircraft can switch to the rocket mode thereby propelling the craft right into the orbit. The important part about the Sabre engine is that it works on the theme of burning the atmospheric air in its combustion chambers. Then it makes use of the heat to turbo-charge its engine.

It should be noted that currently rockets have to carry extremely expensive fuel in the name of liquid oxygen and liquid hydrogen in order to power. Sabre engine will certainly help in cutting down the cost as it creates its own liquid oxygen which happens within a blink of an eye. Sabre engine comes in the new class of aerospace engine which has been designed to enable crafts to get to five times the speed of light from the standstill within few seconds.

Sabre Engine is set to revolutionise the transportation

Once the aircraft loaded with the Sabre engine gets its space then it will be able to switch to the rocket mode. In the rocket mode aircraft can travel the orbit for a stimulated period of 36 hours. Thereby such aircrafts can even be used for launching the satellites into the orbit at a fraction of current costs.

UK Space Agency is investing and collaborating with the Reaction Engines to develop the Sabre engine and aircraft which can be used to travel longer distances within shortest time intervals. UK Space Agency has invested 60 million pounds in 2013 with an aim of developing some ground breaking technology and Sabre engine is a result of its effort.

Wednesday, 19 November 2014

DARPA Working On Building an Aircraft Carrier Inspired From Avengers

 Aircraft Carrier
Drones, which are always considered as a vital part of the United States Military Arsenal and the strength of the US Military is gaining importance every day. Although the range and speed of the drones is limited when compared to other manned aircrafts, this shortcoming has been overtaken its advantages which includes low-risk, low cost, versatile as well as the best alternate to manned aircrafts.

This is the reason why they are becoming progressively more powerful. The shortcomings of the drones is being keenly checked and expected to be fixed by DARPA, who are looking towards airborne aircraft carriers as an alternate. Now, this is just an idea for DARPA, but if this goes in the desired way, then we can soon expect these carriers to develop and be ready for deployment. People are expecting these carriers to be similar to the helicarriers that was used by the S.H.I.E.L.D. in the movie “The Avengers”.

Sounds Unbelievable but it is possible

At an instance, the idea might sound crazy but this is not the first time, where an aircraft has been launched and has been successfully recovered as well. Before the World War 2, The US Naval airships Akron and Macon (officially known as ZRS-5 and ZRS-4 respectively) were floating airfields and aircraft hangars. Since at that time the range of ocean required to be observed was too much and bi-planes used for scouting were having limited range, 1000-foot-long airships were designed. These airships were designed in such a way that they could carry nearly five F9C-2 Curtiss Sparrow hawk scout planes.

The planes could not only be launched but also recovered by using a hook system in a trapeze-shape. One thing to remember is that there was no accident reported on these airships with respect to the aircrafts. During their years of operation, both launch and recovery process was completed successfully. Unfortunately, Navy had to discontinue to usage of this program due to the planes being destroyed in crash caused by bad weather.

Now, what we are left with is “Hangar 1″ at Moffet Field, which has been built to accommodate the Macon. Even though people might have seen it at Silicon Valley and associated it with Airship are deprived about the complete story. According to the reports, the Hanger was leased out to Google recently and they had to pay a whopping $1 billion for a period of 10-years.

What will change for the drones?

According to DARPA, if they are able to develop the capability of launch and recovery of the drones, this will enable the US military to combine the manned aircrafts with the speed, precision and range of the drones. At present, the emphasis is being put on the surveillance, intelligence, and reconnaissance, DARPA recognizes that these weaponized drones will also be helpful in other missions. DARPA has invited respondents to put forth their ideas pertaining to the modification of the aircrafts and provide an a complete analysis of the benefits that can be expected out of the modified craft and also the system will work on these crafts.

Saturday, 14 January 2012

Stratolaunch Systems: an aircraft with excessive dimensions

After completing the Space Ship One, the spearhead of Virgin Galactic, the two friends Paul G. Allen and Burt Rutan have again worked together to give a more impressive result, literally.

The mountain was not an anti-climax as the duo wants to design the largest aircraft ever built. The craft was named Stratolaunch Systems. This is an aircraft carrier to be used for space tourism. Its mission is to transport rockets at high altitude. Burt Rutan remains true to its principles and takes the body double as the White Knight but with a size that is closer to that of a Boeing 747. Accusing 500 tonnes on the scale, Stratolaunch Systems is equipped with wings of 125 meters wide. It is powered by six reactors Jumbo Jet.