Remember all the advances in transportation?

[RED]

Yep, it amazed Americans when horse and buggies became extinct.

Propeller driven air planes were replaced by jets!

Now our simple jets are obsolete!

"The Paradoxal hypersonic jet concept is designed to travel at Mach 24 (nearly 16,000 mph). At this speed, it can fly out of JFK and land at Heathrow, London, covering a distance of 3,450 miles in 11 minutes. Yes, you read that right."

[Allen]

I had a horse when I was young---never cared to ride them though. They have a brain of their own.

I read a little on the Paradoxal hypersonic jet but didn't get any answers to my thoughts: If man can only withstand a G force of around mach 3 to 3.5 how can they withstand mach 24? I suppose the answer is that the plane leaves the earths atmosphere and travels like a rocket beyond that.. Up to 70K feet or so is limited to the mach 3.

Another thought is: will titanium be required to make these? If so, we don't have much of it here and in the past had to get it from Russia.

Also wonder if any form of anti-gravitational concept will be incorporated here.

I'll bet there are many spies working for Boeing on this.

[Major Tom]

I don't fly anymore, so that is irrelevent to me.

[Oyaji]

I don't fly anymore, so that is irrelevent to me.

Same here.....last time I boarded an airliner was probably 25 years ago. Flew numerous times across the Pacific and Indian Oceans; so much so, that I've lost count. Have flown in both military and civilian charter aircraft. Don't know the exact number of hours but, it's a bunch. Another thing I detest is the TSA screening flunkies at the airports. I refuse to have anything to do with them. Furthermore, there's no way I would want to be cooped up in an airborne aluminum cylinder, shoulder-to-shoulder and nuts-to-butts with ill mannered and obnoxious excuses for a human beings. Last time I traveled commercially was three years ago and that was by AmTrak California to Washington State and return for my daughter-in-law's funeral. Nowadays if I can't get to my destination by automobile in 3 hours or less, I ain't going!

[Johnny P]

With all the liquid oxygen on board you won't have time to worry about it if anything happens.

[Mark in Ottawa]

I was saying the other day that just because science has advanced to the point that we can now do certain things that were previously impossible or in the realm of science fiction, it does not necessarily mean that we should actually do them. Travel at that speed is a good example. Another is the rapid development and implementation of Artificial Intelligence (AI). My fear is that it is developing so fast that little thought has been given to the implications and effects of its wide use or to the development of appropriate controls.

[Allen]

I was saying the other day that just because science has advanced to the point that we can now do certain things that were previously impossible or in the realm of science fiction, it does not necessarily mean that we should actually do them.

Visiting the Titanic in a plastic sub is an example.

[Johnny P]

Seems the industry can't keep the planes flying that it has been building for years, much less something out of science fiction.

[Phloating Phlasher]

" If man can only withstand a G force of around mach 3 to 3.5 how can they withstand mach 24?"
"G" force is created during violent maneuvering. Right now we're both experiencing +1"G", natural ground level gravity pull. "G" numbers are multiples of "normal +1"G"ravity. Most healthy people can do up to about +7 or +8 "G", or about -3 to -4 "G". There are physical things you can do, Clenching & breathing Hard, & inflatable suits triggered during high "G" maneuvers automatically to stop the blood from being pooled in the extremities.
"G" is an acceleration.
Mach numbers are something else entirely.
Mach 1.0 is simply traveling at the speed of sound (in the atmospheric conditions surrounding you, which vary.) Mach 2.0 is twice that, mach 3.0 three times & so on. You won't even notice anything (assuming you're in an enclosed cabin.).

[Allen]

I did kinda blur mach and G force together.

I meant the G force typically generated by traveling at mach 3.

[Phloating Phlasher]

There isn't any unless you're accelerating up to Mach 3.Then its dependent on your aircraft & thrust available.

[RED]

Mach 3???? How many fighter jets were capable of mach 3+?

Rare, the fastest jets were not fighters.

In a 1960's F-4 Phantom, i experienced over mach 2.2 over a dozen times. It was always just a maintenance flight test!

In our dog fight training (think of Top Gun) super sonic turning was never easier or better than .9 mach maneuvers.

[Allen]

Mach 3 ? The SR-71. Though not a fighter it did have to outrun missiles. Top speed estimated at Mach 3.2. Though the speed may not be as critical the plane does have to accelerate to that speed thus the G force. The plane was capable of more and that info (if known) is still classified. Plus, there was the heat problem.

Yes, most fighters that I've read about have a top speed of mach 2.5 or less including the latest and greatest.

I wonder if some of the engineering of this mach 24 aircraft is based upon the concept of the TR3B (look it up) which is said to be capable of mach 9 (if real).

[RED]

In 1972 I was a "STAR" radar controller with 6, T-39 air trainers off the Georgia coast training Radar Intercept Officers.

A odd super sonic aircraft interred the restricted area. It was too high and too fast for any of the T-39's to lock it up.

I reported the incident... and received zero returns.