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Dublin: 19 °C Wednesday 19 June, 2013

Hypersonic jet fails Mach 6 test

Officials have blamed a faulty control fin for stopping the super-sonic combustion ramject engine from starting properly.

Image: US Air Force

THE US AIR FORCE’S attempt to fly an experimental aircraft at six times the speed of sound, or about 3,600 mph, on Tuesday.

It was hoped that the unmanned X-51 WaveRider would reach Mach 6 Tuesday when dropped by a B-52 bomber after its take-off at the Southern California coast near Point Mugu. Engineers hoped it would sustain its top speed for 300 seconds which is twice as long as it’s managed to go before.

However, officials have blamed a faulty control fin for stopping the super-sonic combustion ramject engine from starting properly, reports the BBC.

“It is unfortunate that a problem with this subsystem caused a termination before we could light the scramjet engine,” said Charlie Brink, of the Air Force Research Laboratory at the Wright-Patterson Air Force Base in Ohio.

“All our data showed we had created the right conditions for engine ignition and we were very hopeful to meet our test objectives.”

Last year in its most recent test, the X-51 fell for about four seconds before its booster rocket ignited, but the aircraft failed to separate from the rocket and plunged into the ocean.

Designed by Boeing, the aircraft is intended to allow the Pentagon to deliver strikes around the globe within minutes.

Read: US to trial unmanned plane flying at Mach 6>

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Comments (56 Comments)

  • Commercial spin offs will be mighty. Emigration to Oz in a few hours.

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  • America f**k yeah!

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  • With regards to this technology being used to kill people just remember that a lot of people- hundreds of thousands were killed in Rwanda by machetes or other crude devices. In the movie about the killings there was a comment made about the machetes being made in china for 50 cents a piece.
    In the second world war, two atomic bombs killed approx 200,000 people in a conflict that caused the deaths of 60 million world wide. You don’t need high technology to kill a lot of people.
    After america lost in Vietnam the north Vietnamese went on to kill more of their own people and the khmer rouge in Cambodia killed a couple of million of their own by simple crude methods.
    So let’s get some perspective here.

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  • At 3,600mph it would take about 84,000 years to reach the nearest star in our own galaxy, Proxima Centauri.

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    • I assume your anti this weapon. It would be used within our own atmosp….

      Oh actually why am I bothering, anyone who thinks this would be for interstellar travel is not really understanding of what this is

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  • How far are we from warp speed? We could deliver the same yolks in seconds.
    Or we might become peaceful and explore space like on star trek weah hay..

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  • Bit of a rogue comma in the first sentence there. “F,ly”.

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  • Wake up nothing! Read the last paragraph. This is a weapon of mass destruction. But hey that’s ok: it belongs to the US. Glad to know though that noone was hurt in the accident – unlike those who’ll be at the receiving end.

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  • That’s terrible. What will the Americans use to kill people around the world now?

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  • Just some things that we all use on a day to day basis that originated from military requirements. Internet,GPS,nuclear power, satellites, jet engine, carbon fibre, Kevlar, mobile phones….the list goes on.

    While its unfortunate that we as a human race have not figured out how to get along, without these advancements we’d still b in the dark ages technically speaking….

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    • Could these things not have been achieved without war? Think about the money spent and man hours that are devoted to war and the wasted time taken up in politics because of it.

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  • Both John and Stephen seem to have gotten out of bed the wrong side this morning.
    Wake up boys!!

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  • It’s going to be used”by the Pentagon to deliver strikes around the globe within minutes”. What do you think those “strikes” will comprise?

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    • Just because it can get from A to B in short order, does not make it a weapon of mass destruction. It just makes it a very fast delivery system for a weapon. And the internet you’re on right now, complaining about this, in part owes its existence to the US Military. Just putting a little context on things.

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  • The word on the street is that it is really a nuclear sub that needed launching from the air . Mission complete .

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  • Sorry people. Early morning miscalculation above. Make that about 800,000 years.

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  • @ John Thomas. That’s true come to think of it. Right back to Greek and Roman times a lot of technical advances have been driven by the necessities of troops’ equipment for the battlefield. Just can’t help wishing it wasn’t so.

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  • bob 16/08/12 #

    a 6G bomb,whoed have thunk it.ah sure if ya die ya die.bugger all the journal can do to stop billions of $$$$’s making wmd.’s.PS can you still buy guns over the counter in the states,drop a few roofies and kill all around you? you can,great! I’m of to school/ post office/mosque…..etc.feel sooooooo safe!

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  • Fail.

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  • Maybe they COULD have been but they weren’t. Its precisely as a result of huge defense budgets that the private sector can’t match that these inventions came about.

    They were never commercially viable at first and so would never have been per sued commercially…

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  • Niall F 16/08/12 #

    James o d is spot on. I work in aviation and the science of this thing being a bomber doesn’t add up, and remember only the papers are suggesting that, Boeing are building this toy with their bestest pals the USAF cos the USAF, as always, will throw the rattle out of the pram in congress if they aren’t allowed in on it. This is an engine test for a type of technology that allows the engine to ‘breathe’ supersonic air. If they safely crack that boeing will revolutionise air travel and it’ll be cheap too, happy days all round. You’ll be in Tokyo before o’leary has time to get the trolley out and weigh your bag. Major major cash to be had and dominance of the commercial aircraft industry for the next 30 years min. But yeah, for sure the USAF will build a military aircraft using this technology (personally I think they have already surpassed this with something unmanned) but such an aircraft would be a high level reconnaissance aircraft (cos the ‘enemy’ can see their satellites coming and hides all the goodies before they pass the horizon line) whereas this thing could pop up anywhere and outrun a missle. Watch out derga dergastan. Simples. Where’d I put my anorak and that comic?

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    • My point exactly..Boeing may have the future commercial benefit of an invention, that if works, will truly revoloutionise passenger travel. It will be quicker and cleaner. But they could NEVER have pursued it (in the short/medium term) without defense funding….

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  • I agree completely, Mark

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  • How many billions are the empire spending on developing this horrendous way of killing women and children. What a dreadful country.

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  • @ Andrew Eager. True about the net. What exactly is the definition of a WMD? Still don’t think developing smarter ways to kill more people in a faster timescale is anything to be too proud of.

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    • Weapon of mass destruction only definition you need.

      However military innovation drives technology. It’s not meaning more will die or more bomb strikes just means instead of sending up bomber or drone can launch directly from the US it’s a delivery system. That’s all, does not have a H bomb on the end, does not need one. Actually h bomb tends to be on rocket into space and reenters so flight time is even faster. This is sub atmospheric engine so standard munition I would imagine. Actually if you give it thought the physics of it would ya really need explosives hitting a target at Mach 7 the Kinetic energy alone would do the job.

      Last point military innovation in ww2 gave us the jet engine which revolutionised how we travel. Military innovation gave us rocket engines that took us to other worlds and put up satellites that allow us mass communications on every level. Military innovation in ww2 advanced computing and gave us the first real computers as primitive at it was set the stage for today.

      So please spare me the horse s**t

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    • Very respectful James. So you not only argue we need military developments but also argue that a war costing millions their lives was a good thing for. Our technological enhancement. Well done, as long as it doesn’t effect you, I presume?
      But coming to the subject of the h-bomb: you do realise that the US is the only nation in the world ever to use such terror and the are many (I’m personally on the bench on this one) who believe that it was a terrible war crime?
      But again, as long as you can have the benefits, who cares how many die!

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    • Lol I think your the only one alright :) bomb in Japan even the war and saved lives. But your entitled to your misguided opinion.

      Mind you if you don’t like military innovation please STOP using your smart phone and pc please.

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    • Ended the war :) damn smartphone. Oh the irony

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    • I’ll stop alright; mit dummheit kann man nicht redenen…

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  • @James O’Donoghue: Paul McCann and Mark Vieregge have made perfectly the point I wanted to make.

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    • What point ? That your a hypocrite ? I make that point because your using a pc with the Internet which are both military innovations to state anti technology views.

      I guess when electricity first came along we had people like this too

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  • I was always told about this American bluff in other word cods whollop tell when it works

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  • @ Mark V : my sentiments exactly!

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