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Mach 6 Test Aircraft Set For Trials
coondoggie writes "The aspiration that jets may someday fly at over six times the speed of sound took a very real step toward reality recently, as the US Air Force said it successfully married the test aircraft, known as the X-51A WaveRider, to a B-52 in preparation for a Dec. 2 flight test. The X-51A flight tests are intended to demonstrate that the engines can achieve their desired speed without disintegrating. While the X-51 looks like a large rocket now, its applications could change the way aircraft or spaceships are designed, fly into space, support reconnaissance missions and handle long-distance flight operations. At the heart of the test is the aircraft's air-breathing hypersonic scramjet system."
Engines reaching desired speed without disintegrating....thats a GOOD feature to have.
Mach 6, how blades is that?
WHOOOSH!
(ducks)
"Kill 'em all and let Root sort 'em out"
Which costs more energy - carrying the extra O2, or overcoming the friction from having to accelerate in an atmosphere? Which imposes more design compromises?
Which would be more economical in the long run? Bear in mind that there are 2 kinds of people that need to achieve very high velocities -- astronauts trying to make orbit and intercontinental travelers trying to get to the other side of the world.
Recent advances in the production of titanium may bring this metal into wide use in airframes. And everything else.
The X-43 already did mach 9.68.
This is actually a bigger step towards making a mach 6 missile rather then a mach 6 plane....
Technology, the cause of and solution to all of life's problems.
When calling the Concorde (or any other aircraft) "too expensive to create, manufacture, and maintain." on needs to take into account the ticket price the market will bear.
Since the Concorde was not designed with a range suitable for flying the Pacific routes, it was forced to try to make up it's high costs on the much tighter margins of the Atlantic routes. Had it been able to fly the higher margin Pacific routes it is quite possible it would not have been too expensive to be sustainable - even at the same (or slightly higher) cost basis.
The concorde was profitable in its last years (not extremely profitable, but it made money, which is more than most airlines can currently say).
In the end, its operators decided it wasn't worth maintaining/refurbishing the planes, scrapped the program, and wouldn't let competitors purchase the unused aircraft. Richard Branson allegedly made several serious offers for the planes, all of which were rejected. Numerous allegations have been made that the grounding of the Concorde fleet was a result of a conspiracy between Airbus and the airlines (unsubstantiated, but certainly plausible, especially in light of their refusal to sell the craft to other carriers at a time when the company was losing money)
In short, we got lazy and stupid.
-- If you try to fail and succeed, which have you done? - Uli's moose
The F-22 wasn't created for our time, it's intended use is to aid our future brethren in overthrowing their tyrannical alien overlords. See the documentary here.
It's no Concorde in any sense. The Concorde was created to make an efficient aircraft, not a fast one. This is the history I learned in college:
Jet engines are more economical the faster you get. Too bad the air friction (drag) gets worse the faster you get. For subsonic aircraft with single flow engines, the optimum lies just a bit below the speed of sound. As there were only single-flow jet engines at that time, the Concorde was created to try to shift the optimum to above the speed of sound. They succeeded in that.
But then, the multi-flow jet engine was invented. Instead of blowing the air out even faster, a more powerful jet engine could now mount an extra turbine that drove an extra flow of air, thereby spreading the power over more air, that was accelerated less. Bummer. Now the Concorde was just a fancy fast-flying airliner.
Nae king! Nae laird! Nae yurrupiean pressedent! We willna be fooled again!
Hmmm...I'm reading my post, and I don't mean to say that it would be great 9/11 would still happen. Don't get me wrong - 9/11 sucked and I would never want that to happen again. But, when I say "what's great" is the fact that nobody seemed to stop and think about how pointless many/most of the security measures actually are. (AKA, I was attempting sarcasm and it definitely did not come through...my apologies.)