Mach 10

[meteor]

There's a scramjet trying to achieve a velocity of Mach 10; it will do the flight on Monday, trying to improve the actual record of Mach 7. I hope it can achieve it. Here's an article
http://www.newscientist.com/news/news.jsp?id=ns99996658

[boaz]

you're porbably talking about nasa's x-43a. i hope the final flight that is scheduled on monday 15 nov will go fine. i have heard about this amazing research few weeks ago and i think it is very exciting. if you want to know more, the following link gives a closer look at the x-43a mission.

http://www.nasa.gov/missions/research/x43-image-feature.html

[meteor]

http://www.newscientist.com/news/news.jsp?id=ns99996686
yeahhh!!!!! :smile:

NASA's X-43A scramjet programme successfully smashed its own world speed record for aircraft by flying at nearly 10 times the speed of sound. The flight proves its radical, air-breathing engine can function at speeds of nearly 12,000 kilometres per hour.

12000 km/h is 200 km/s. Better no think about it :rolleyes:

What's the next step? According to wikipedia, the limit of the scramjet technology is superior to Mach 20....

[russ_watters]

12000 km/h is 200 km/s. Better no think about it :rolleyes: Ya wanna try that one again...? :uhh:

[Clausius2]

http://www.newscientist.com/news/news.jsp?id=ns99996686
yeahhh!!!!! :smile:

12000 km/h is 200 km/s. Better no think about it :rolleyes:

What's the next step? According to wikipedia, the limit of the scramjet technology is superior to Mach 20....

Yes, NASA guys have achieved it. But do not forget it's only a subscaled model of a real engine (I think the aircraft is 1m lenght), and it has achieved such velocities only for a while. As far as I know, the Hyper-X project is going to be put apart by Bush derivating funds to Mars manned travel.

In my opinion, achieving a succesfull supersonic combustion with high reliability and enough controlling, and designing a commercial engine is far beyond. Only very little is know about what happens into the combustion chamber at that velocity, and how the engineers are going to deal with the high drag and extreme high aerothermal flux.

Anyway, congratulations to USA for this achievement. Also France and Japan sciencists have done a great job all over these years researching in supersonic combustion, so they have an small part of responsability at this event.

[meteor]

Ya wanna try that one again...?

Ok, a little less, then :biggrin:

[Orion1]

Scramjet' launched on Mach 10 flight attempt off California

A tiny unmanned NASA "scramjet" soared over the Pacific Ocean Tuesday to demonstrate a radical new engine technology by attempting to fly at a record speed of about 7,000 mph, almost 10 times the speed of sound.

The 12-foot-long X-43A supersonic combustion ramjet was to fly under its own power at Mach 10 for about 10 seconds after separating from a booster rocket at 110,000 feet, then glide to a splash landing.

The X-43A, mounted on a Pegasus rocket used to boost it to flight speed, was carried under the wing of a B-52 aircraft and released at an altitude of 40,000 feet over a test range off the Southern California coast. The rocket motor then fired for a 90-second ascent.

Like its predecessors, the X-43A will not be recovered from the ocean.


Reference:
http://archive.harktheherald.com/archive_detail.php?archiveFile=./pubfiles/prv/archive/2004/November/17/OtherNews/53155.xml&start=0&numPer=20&keyword=scramjet&sectionSearch=&begindate=1%2F1%2F1997&enddate=12%2F31%2F2004&authorSearch=&IncludeStories=1&pubsection=&page=&IncludePages=&IncludeImages=&mode=allwords&archive_pubname=Heraldextra.com%0A%09%09%09

[prithvibala]

I've been asked to do a basic seminar on SCramjet in two weeks' time. Can you tell me where to find scramjet theory on the net? About the best place I found was Wikipedia, but that's just too basic.