Hypersoar

sferrin

sferrin

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Surprised this hasn't popped up here yet.

http://www.globalsecurity.org/military/systems/aircraft/hypersoar.htm
 

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Actually, I think that showed up in one of the Hypersonic threads in the aircraft forum.
 
Sundog said:
Actually, I think that showed up in one of the Hypersonic threads in the aircraft forum.
Click to expand...

I did a search before posting and the name popped up once but nothing else that I could see.
 
Not surprisingly, there hasn't been any news on the development of Hypersoar since the concept was unveiled in 1999. Given the current state-of-the-art scramjet technology and the fact that the X-51 is the first hypersonic air-breathing aircraft to demonstrate sustained hypersonic flight (beyond 12 seconds), maybe the Lawrence Livermore National Laboratory will go back to the Hypersoar concept and build its own technology demonstrator for an air-breathing, hydrocarbon-fueled hypersonic plane to test the feasibility of hypersonic passenger flight. The trouble is, there is no infrastructure for fueling a hypersonic aircraft with methane or any other hydrocarbon, and hypersonic flight requires the use of a combined cycle turboramjet engine to accelerate to Mach 3.7 (at which the turbine is shut down and the pilot turns on the throttle to ignite the scramjet so that the plane can fly to Mach 5.9).
 
"Scramjet" pretty much killed the idea for me. They aren't ready yet. Here's some more information sites:
LNL Webpage on HyperSoar:
https://www.llnl.gov/str/Carter.html

Science Notes 1999 article
http://sciencenotes.ucsc.edu/9901/ride/ride.htm

Advancement and Refinement of HyerSoar Modeling report:
https://e-reports-ext.llnl.gov/pdf/238650.pdf

And interestingly enough the inventor now works for NASA as "Director for Game Changing Technology" :)
http://www.nasa.gov/offices/oct/about_us/bios/oct_carter_bio.html

Randy
 
Hypersoar's funding line in Darpa's budget request was later "renamed" Falcon when several responsive strategic strike systems concepts "merged" in the new grand scheme. There is a direct programmatic connection between these two initiatives, the modest hypersoar and the far reaching Falcon system.


A.
 
Might be a little bitter. But here's the proof.
antigravite said:
Hypersoar's funding line in Darpa's budget request was later "renamed" Falcon when several responsive strategic strike systems concepts "merged" in the new grand scheme. There is a direct programmatic connection between these two initiatives, the modest hypersoar and the far reaching Falcon system.
Click to expand...


A.
 

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There seems to be a problem with US hypersonic research. It can't be "simple" and it can't be incremental.

The change paper shows that what started as a "demo" suddenly morphed into a prototype SLV demonstrator/operational vehicle. Same thing happened with RASCAL and other DARPA projects.

I don't get the reasoning

Rancy
 
It hadn't occurred to me before watching this video just how hyper-nauseating a skip-glide flight would be.

"1.5 Gs for 20 seconds...then weightlessness for 1.7 minutes! Then repeat for two hours!".
 

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