drewb99 0 Posted March 28, 2004 http://www.cnn.com/2004....ex.html Quote[/b] ]LOS ANGELES, California -- NASA has made aeronautics history by launching an experimental jet that reached a record velocity of just over seven times the speed of sound. Share this post Link to post Share on other sites
Wilco 944 Posted March 28, 2004 Holy crap, seven times the speed of sound Share this post Link to post Share on other sites
hellfish6 7 Posted March 28, 2004 Pfff... I've flown faster than that on my way to the bathroom after having a shot of whiskey. Share this post Link to post Share on other sites
Supah 0 Posted March 28, 2004 I have read some pretty interesting stuff on these scramjets. They seem like a interesting propulsion system where it not for their inability to work when the vehicle is at a standstill or low speeds. Have to carry as scram jet AND a normal jet engine kinda takes away the advantage due to weight Pfff... I've flown faster than that on my way to the bathroom after having a shot of whiskey. Â Jalapenos do the job too. Share this post Link to post Share on other sites
Ex-RoNiN 0 Posted March 28, 2004 I have read some pretty interesting stuff on these scramjets. They seem like a interesting propulsion system where it not for their inability to work when the vehicle is at a standstill or low speeds. Have to carry as scram jet AND a normal jet engine kinda takes away the advantage due to weight Pfff... I've flown faster than that on my way to the bathroom after having a shot of whiskey. Â Jalapenos do the job too. Space flight mate 2 engines will be a lot less to carry than tons of liquid oxygen, which the scramject can suck in I'm very happy that this experiment was a success, esp. considering the results of the first attempt Share this post Link to post Share on other sites
waffendennis 0 Posted March 28, 2004 Hmm I wonder: Can I human resist the G-Force that comes at that speed? Isent the bidy collaps at a speed above mach 3>? Share this post Link to post Share on other sites
kegetys 2 Posted March 28, 2004 Hmm I wonder: Can I human resist the G-Force that comes at that speed? Isent the bidy collaps at a speed above mach 3>? Speed does not cause g-forces, acceleration does. Share this post Link to post Share on other sites
joltan 0 Posted March 28, 2004 Just imagine a cruise missile with an engine like that - that would be really hard to shoot down... Share this post Link to post Share on other sites
Certa 0 Posted March 28, 2004 Lovely! The scram jet works with compressing the oxygen from the atmosphere and igniting it. It contains no moving parts leaving the disadvantages of jet behind but is still being energy efficient. The future idea is to have a 3 step space plane, or a two step long distance plane. Take off with jets bringing the craft up to the speeds where scram will work. Scram needs an initial high speed being able to compress oxygen, scram takes over and will bring the craft up to or close to orbit speed while still in the atmosphere. the last stage, if space is the goal, is handled by a rocket engine. From ground to orbit using a lot less fuel a rocket would require. Share this post Link to post Share on other sites
Guest Posted March 28, 2004 7 times the speed of sound? Pffft! Bad news travels way faster! Share this post Link to post Share on other sites
Albert Schweitzer 10 Posted March 28, 2004 do window-wipers still work at that speed? Share this post Link to post Share on other sites
soul_assassin 1750 Posted March 28, 2004 Hmm I wonder: Can I human resist the G-Force that comes at that speed? Isent the bidy collaps at a speed above mach 3>? there is no G in space so u'r bidy will be aight Share this post Link to post Share on other sites
dm 9 Posted March 28, 2004 Hmm I wonder: Can I human resist the G-Force that comes at that speed? Isent the bidy collaps at a speed above mach 3>? In the early 1900's they thought that you would die if you traveled @ 40mph.... go figure btw, the old Saturn V rockets, and the Shuttles travel close to this speed in order to escalpe the earths atmosphere, and the astronaughts dont die, do they? (The important thing about this, is that Mach 7 was achieved WITHOUT using rockets) Share this post Link to post Share on other sites
llauma 0 Posted March 29, 2004 We are currently traveling at an enormous speed so it's as kegetys says only about acceleration. The speed is just a measurement of how fast two objects moves away from each other. Who can say for sure which object is moving and which isn't? Share this post Link to post Share on other sites
Certa 0 Posted March 29, 2004 Some speed and rocket info.. Rocket engines are still top when it comes to brute force, acceleration and speed. The problem is the fuel needed for one minute of thrust The space shuttle must reach 20 times the speed of sound in order to get into a useful orbit. The old Saturn V outperforms the shuttle with 31+ times the speed of sound, but the Russian Energia rocket could beat even that. In the case of space rockets, a lot of the acceleration is done outside the atmosphere so the friction of the atmosphere is not a problem. It's worse coming back down, that's when good heat shields are needed. Share this post Link to post Share on other sites
Baron Hurlothrumbo IIX 0 Posted March 29, 2004 The future idea is to have a 3 step space plane, or a two step long distance plane. Take off with jets bringing the craft up to the speeds where scram will work. Scram needs an initial high speed being able to compress oxygen, scram takes over and will bring the craft up to or close to orbit speed while still in the atmosphere. the last stage, if space is the goal, is handled by a rocket engine.From ground to orbit using a lot less fuel a rocket would require. Or even using a carrier type plane as the launch vehicle (Eg an Antonov 124 could lift one easily - it was designed to move the russian shuttle about before launches on it's back.) Share this post Link to post Share on other sites
drewb99 0 Posted March 29, 2004 The 225 was built for the Buran shuttle, not the 124. Share this post Link to post Share on other sites
ran 0 Posted March 29, 2004 the Antonov AN225 Mirya/Cossack is a real monster , I saw it once at Paris Air Show, this thing is simply monstruous its flight is kinda majestuous eventhough this bird is a "fat ass" Share this post Link to post Share on other sites
Baron Hurlothrumbo IIX 0 Posted March 29, 2004 Sorry, you are right. The one with the split tailplane. Share this post Link to post Share on other sites
Winters 1 Posted March 30, 2004 Warp speed here we come. Kudos to NASA on a job well done They needed it. Share this post Link to post Share on other sites