www.extrahw.com
>

Hypersonic travelling closer to reality, Mach 7 achieved

Hypersonic travelling closer to reality, Mach 7 achieved
,
Air transportation starts to be slow now. We need to travel even faster. Therefore, NASA, Australia and Air Force are developing hypersonic planes. They were able to successfully test the hypersonic rocket that achieved 7.5 times the speed of sound.
The world is faster and faster. We need quicker communication and transportation. Therefore, the air transportation starts to be slow for today's demand. Concorde aircraft is a history for a long time now and there are no really fast aircrafts. NASA, Australia’s Department of Defence, and Air Force Research Laboratory are jointly developing hypersonic technology HiFiRE (Hypersonic International Flight Research Experimentation Program). Hypersonic speed has to be at least five time faster than the speed of sound.
 
 
It can be useful not only for ordinary transportation but especially in a warfare. Such a fast plane would be almost impossible to hit. Hypersonic planes can also replace rockets in delivering satellites into the space.
 
These agencies carried out a test of HiFiRE technology this week. For this test, ordinary aircraft was not used. It is better to use rocket in these stages of development. The rocket achieved the height of 172 miles (277 km) and the maximum speed reached 7.5 times the speed of sound (Mach 7). That is approximately 9200 km/h (5700 MPH). With such a fast aircraft, you can travel from London to New York in approximately 35-40 minutes, the journey from London to Sydney would take about 2 hours.
 
Scramjet engines that are used in hypersonic technology are supersonic combustion engines that use the compressed oxygen from atmosphere as same as in ramjet engines. In comparison with ordinary ramjet engines, the scramjet ones are able to work with the air flowing in supersonic speed (usually, supersonic ramjets slow down the air to subsonic speeds, hypersonic scramjet slow down the air to supersonic speeds).
 
Newest articles
Panasonic Lumix G80 (G85): Review Panasonic Lumix G80 (G85): Review
Panasonic has just released the new mirrorless camera Lumix DMC-G80 (DMC-G85, DMC-G81). It has 4K video mode, second generation of Dual IS system, 3.5mm jack for stereo microphone and it is also dust and water resistant. How did it perform in our test?
9/19/2016, Computers, Milan Šurkala
Fabric generates electricity from sunlight and motion Fabric generates electricity from sunlight and motion
Researchers at Georgia Institute of Technology have developed a new type of fabric that is able to convert sunlight and various types of motion to electricity. That can be used to power small electronics and wearables.
9/15/2016, Computers, Milan Šurkala
Fisker Karma reborn, new hybrid Karma Revero Fisker Karma reborn, new hybrid Karma Revero
Hybrid sports car Fisker Karma is back but it has changed its name and some other properties. Now, it is called Karma Revero. It has slightly larger battery, there are minor changes in design and it can reach 60 mph in 5.4 seconds only.
9/13/2016, Transportation, Milan Šurkala
Electric Mercedes-Benz Vision Van with delivery drones Electric Mercedes-Benz Vision Van with delivery drones
The car maker Mercedes-Benz has just presented a concept of the future van transportation. The Vision Van has an electric engine, it is controlled with a joystick and there are two autonomous drones to deliver a cargo. 
9/9/2016, Transportation, Milan Šurkala
Water-resistant Apple iPhone 7 and 7 Plus with RAW capture Water-resistant Apple iPhone 7 and 7 Plus with RAW capture
Long-awaited smartphones Apple iPhone 7 and iPhone 7 are here. Both smartphones are water-resistant with IP67 rating, their cameras were improved and got RAW capture and dual lens in iPhone 7 Plus case. Apple has also removed 3.5mm jack but that is not all.
9/8/2016, Computers, Milan Šurkala