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Posted on 07/11/2025 8:24:47 AM PDT by Red Badger
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AVIATION Ping!.........................
YAWN ,LOL
From rice farming to hypersonic propulsion. How did the Chicoms do that?
How many millions of gallons of fuel per second ? LOL
20,000 km/hr = 12,427.4 mph = Mach 16
They are smart people who know how to do advanced math.
Detonation hypersonic engine - like the one we were flight testing a couple decades ago?
China unveils a LOT of stuff, but... how about flying one?
I look at all the stolen tech, liners, flaps and seals on the nozzle. Chem milled titanium engine casing. Like the poster above; where did they get this tech?
How high must it travel to avert burning up due to atmospheric heat?
Will passengers have to get a pre-flight physical before pulling 9 G’s
Per Google:
At Mach 7, the G-forces experienced by an object can be up to 9 G1. Fighter pilots can withstand up to about 9 G for a second or two, but sustained G-forces of even 6 G would be fatal2. Astronauts endure around 3 G on lift-off2.
But first, it’ll crash into a Chinese school a bunch of times.
at that speed the friction generated temperature would be about 15000K
Hypersonic vehicles like reentry capsules or experimental aircraft (e.g. NASA’s X-43) experience surface temps of 1,500–3,000 K.
A commercial aircraft (if it existed at this speed) would likely use ablative shielding or regenerative cooling to keep skin temps in the 1,000–2,500 K range.
Those temps are still above Aluminium melting temp of ~933K
Not sure what the airframe would be made of. It would melt to slag from the friction.
Like the Concorde that went before it, it will be the elite’s toy. It won’t be practical for the same reasons the Concorde was scrapped.
From the end of the article:
Despite its potential, significant engineering challenges must be resolved before hypersonic travel becomes a practical reality.Extreme heat and pressure at Mach 16 require advanced thermal protection systems to prevent aircraft from breaking apart.
Materials capable of withstanding these conditions must be developed,
and cooling mechanisms must be perfected to ensure structural integrity during flight.
Another major hurdle is stability and control. Researchers must refine the technology further to ensure that hypersonic engines remain stable across various speed ranges.
developing cost-effective aircraft that can safely operate at these speeds remains a significant challenge.
If the technology proves too expensive, commercial adoption could be delayed for decades.
That temp for friction was assuming standard international flight altitudes
Bill Clinton.
That is 3.4 miles per second. At 4.7 miles per second you are moving fast enough for low Earth orbit.
Tungsten.
We aren’t using it for lightbulbs any more................
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