Errymath: Hypersonic Aircraft

Hypersonic SR-72 spyplane demo spotted

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<a href="http://www.popularmechanics.com/military/aviation/news/a28420/hypersonic-sr-72-demonstrator-reportedly-spotted-at-skunk-works/" target="blank">A subscale demonstrator of the SR-72 hypersonic spyplane was reportedly spied at Lockheed’s facilities in California.</a><br />
<br />
A proposed hypersonic reconnaissance and strike aircraft, the SR-72 
would serve as a replacement for the famed SR-71 Blackbird, which was 
retired by the Air Force back in 1998. The SR-71 Blackbird could fly at 
2200 mph (over 3 times the speed of sound).<br />
<br />
Lockheed has said they are working on a combined-cycle engine. It 
uses both a turbine and a scramjet to achieve hypersonic speeds. 
Lockheed Martin is testing Aerojet Rocketdyne from 2013 to 2017. Two 
combined-cycle engines are planned to power the SR-72, which is designed
 to be about the same size of the SR-71 and could achieve first flight 
in the late 2020s.<br />
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<img alt="" data-aria-label-part="" src="https://pbs.twimg.com/media/DK6CzskUMAEAH1m.jpg" style="top: -0px; width: 100%;" /><br />
  <br />
An optionally piloted flight research vehicle (FRV) is also in the 
works to flight test elements of the SR-72 design. The FRV will be about
 the size of an F-22 and use a single combined-cycle engine for 
propulsion. Development of the FRV is expected to begin next year and 
first flights could occur as soon as 2020. Leading up to the FRV, 
Lockheed could be conducting ground and flight tests on even smaller 
demonstrators.<br />
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<img alt="" class="alignnone size-full wp-image-137289" height="431" src="https://www.nextbigfuture.com/wp-content/uploads/2017/09/6f3a902dc620b0f33f219aeb11a127de.jpg?x71037" width="700" /><br />
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<blockquote class="twitter-tweet" data-lang="en">
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<a href="https://twitter.com/hashtag/Hypersonic?src=hash&ref_src=twsrc%5Etfw">#Hypersonic</a> SR-72 <a href="https://twitter.com/hashtag/spyplane?src=hash&ref_src=twsrc%5Etfw">#spyplane</a> demo spotted<a href="https://twitter.com/hashtag/Aerospace?src=hash&ref_src=twsrc%5Etfw">#Aerospace</a> <a href="https://twitter.com/hashtag/scramjet?src=hash&ref_src=twsrc%5Etfw">#scramjet</a>  <a href="https://twitter.com/hashtag/6XSoundSpeed?src=hash&ref_src=twsrc%5Etfw">#6XSoundSpeed</a> <a href="https://twitter.com/LockheedMartin?ref_src=twsrc%5Etfw">@LockheedMartin</a> <a href="https://twitter.com/hashtag/Aerojet?src=hash&ref_src=twsrc%5Etfw">#Aerojet</a> <a href="https://twitter.com/hashtag/Rocketdyne?src=hash&ref_src=twsrc%5Etfw">#Rocketdyne</a>  <a href="https://t.co/sPkAK0VxyM">https://t.co/sPkAK0VxyM</a></div>
— Hugo Ángel (@hangel) <a href="https://twitter.com/hangel/status/913867111361073153?ref_src=twsrc%5Etfw">September 29, 2017</a></blockquote>
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Hypersonic SR-72 spyplane demo spotted <a href="https://t.co/Y2b6bca3wY">https://t.co/Y2b6bca3wY</a> <a href="https://t.co/jWrn38J3Eh">pic.twitter.com/jWrn38J3Eh</a></div>
— nextbigfuture (@nextbigfuture) <a href="https://twitter.com/nextbigfuture/status/913811601404432384?ref_src=twsrc%5Etfw">September 29, 2017</a></blockquote>
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Hypersonic SR-72 spyplane demo spotted

A subscale demonstrator of the SR-72 hypersonic spyplane was reportedly spied at Lockheed’s facilities in California. A proposed hyper...

Maiden Flight of Chinese HyperSonic Aircraft Flew Faster than US Blackbird

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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1ZzWfTiQEO4CVKrpr88J1qgmUTlLCYsBt6TjBzkHxsSzFsNK9ucyH_tPjCM6SoN0MgmbbZX8gGstaNqCAU0R178IugaA745QFmHlHwf1MhTx7xx5LhJVItq_l_QSIBmK09aSlXztub3Y/s1600/hypersonic+aircraft+shape.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="364" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1ZzWfTiQEO4CVKrpr88J1qgmUTlLCYsBt6TjBzkHxsSzFsNK9ucyH_tPjCM6SoN0MgmbbZX8gGstaNqCAU0R178IugaA745QFmHlHwf1MhTx7xx5LhJVItq_l_QSIBmK09aSlXztub3Y/s640/hypersonic+aircraft+shape.jpg" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;">Figure new hypersonic aircraft shape Imaginative</span></td></tr>
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<br />
Dongfeng military (<a class="externalLink" href="http://www.chbee.com/news/2281.html" rel="nofollow" target="_blank">东风军事网-最新热点军事资讯网</a>
 The so-called hypersonic airplane hypersonic aircraft is a member of 
the family, in general, we will fly faster than 6200 kilometers per 
hour, the aircraft became hypersonic aircraft and manned superb sonic 
referred to as hypersonic aircraft aircraft, currently the fastest 
man-made flying military aircraft in the United States SR-71 strategic 
reconnaissance aircraft, its flight speed of not more than an hour 4000 
kilometers, and let the driver safety ride in a flight within faster 
than Mach 5 or more aircraft, its technical requirements are high<i>. </i><br />
<br />
<i>September
 18, according to the aviation industry, state media reported recently, 
the center of a new hypersonic flight demonstrator flight test is 
successful, the article said, "the aircraft mission profile special, 
unique way flight, flight speed and height is far more than the test 
since the center was established for all other test models. "<br />

</i><br />
<i>The article also includes a first exposure this not only hypersonic 
aircraft, but also has a test pilot, the article said:. "A few hours 
after takeoff, an airline task completion dark aircraft, from wide-angle
 deep sky dive close to chic complete flare, light to float to the 
airport runway, the whole process is like a sword sheath also accurate 
chic. " The article describes the plane quintana dark, due to hypersonic
 aircraft flying at high speed, the surface temperature of the black 
high-temperature insulation materials need to ensure that the body, so 
this description can be basically confirmed hypersonic flight 
characteristics of the aircraft, in addition to reports that flight I 
grew up in a few hours time, also beyond the Chinese media this aircraft
 powered maturity guess.<br />
<br />
It reported that "the flight test center to achieve a breakthrough in 
the field of hypersonic flight, flag flight test center in kind, art is 
more mature. New areas, new challenges, flight test center for young 
people, here is a new starting point, China will witness a faster pace 
and that China attaches a higher place, it is the beginning of a dream 
place. "<br />
<br />
At present, humans can achieve hypersonic flight are basically two ways,
 one is propelled gliding, both aircraft itself is not power, 
accelerated by providing speed boosters, our multiple tests of WU-14 
aircraft belonging to this one type. Another is to use a turbine, 
rocket, stamping and other pulse detonation engine based tandem engine 
turbine based combined. The so-called tandem-type turbine based combined
 cycle engine, that is, the simple combination of different types of 
engines, different Mach number range, using only one engine, i.e., the 
use of the relay-type work.<br />
<br />
The United States in the development of SR-71 strategic reconnaissance 
aircraft J-58 engine used to belong to the aforementioned combined 
engine, visible power is the key to the development of this aircraft. In
 the August 25, AVIC Qingan engine group more products program 
evaluation research reports related stories, a so-called "tandem engine 
turbo punch combination" first appeared, and confirm this new research 
engine will "as an aircraft supporting. " Referred to here is the 
above-mentioned article reported the hypersonic demonstrator. Test 
flight from the aircraft flight test center has been transferred, it is 
clear already conducted several test aircraft to verify the basic flight
 performance.<br />
<br />
<br />
According to military experts say China a "tandem engine turbo punch 
combination" secret aircraft project has been carried out over seven 
years, the outside world that this aircraft is the China project total 
catch Chengdu Aircraft Research Institute developed a "black technology"
 project. Hang from media reports, China's new hypersonic manned 
aircraft substantially similar to the United States SR-71 "Blackbird" 
strategic reconnaissance aircraft, but the aircraft's flight index will 
surpass the US SR-71 "Blackbird", the highest flight speed reaches 
nearly 5 times to 7 times the speed of sound, which is the upper limit 
of human technology manned aircraft. Fraser military experts believe 
that China is currently pre-research of this hypersonic aircraft will 
probably have a similar multi-purpose design requirements, if deemed 
strategic bombers can bomb Tokyo within 20 minutes, the bombing of Guam 
within 50 minutes. Interestingly, Japan and the US media this time 
choose the collective silence.<br />
<br />
Military experts for further analysis, said Fraser, currently the 
world's countries to carry out research of hypersonic aircraft, although
 many, but really were not much to the practical stage, to create a 
demonstrator or prototype two countries only China and the US, can be 
seen the degree of difficulty of this technology is high, Chinese 
research on such aircraft generally reflects that China has caught up 
with the United States in an area hypersonic research aircraft, on the 
whole, if the report does have a manned aircraft the ability to fly, 
then the machine will be publicly reported, the world's fastest airplane
 flight.<br />
<br />
Since the flight speed can make it easier to avoid the hypersonic 
aircraft of enemy air defense missiles to fight back, so a hypersonic 
aircraft with an excellent platform to use as a strategic 
reconnaissance, while the platform as a strategic strike, hypersonic 
aircraft can also carry anti-ship missile high-speed assault on enemy 
aircraft, also can carry cruise missiles on enemy targets in depth 
"surgical" precision strike. From this point of view after several high 
supersonic combat aircraft and anti-ship missile that is has become a 
hypersonic aircraft, China's another trump card.</i><br />
<br />
<br /></div>

Maiden Flight of Chinese HyperSonic Aircraft Flew Faster than US Blackbird

Figure new hypersonic aircraft shape Imaginative Dongfeng military ( 东风军事网-最新热点军事资讯网 The so-called hypersonic airplane hypersonic a...

Hypersonic Engine Wins Award, Reshapes Speed Race?

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<img alt="China Hypersonic Plane" class="full-width unveil-processed full-visible" data-lgsrc="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/chinese_hypersonic_uav.jpg?itok=7__Q-9Bz" data-medsrc="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_hypersonic_uav.jpg?itok=xb_uBo7L" data-smsrc="http://www.popsci.com/sites/popsci.com/files/styles/small_1x_/public/chinese_hypersonic_uav.jpg?itok=diT_Yybw" data-src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_hypersonic_uav.jpg?itok=xb_uBo7L" height="480" src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_hypersonic_uav.jpg?itok=xb_uBo7L" width="640" /><div class="caption-wrapper">
<a class="colorbox-button color-processed cboxElement linkTargets-processed" href="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/chinese_hypersonic_uav.jpg?itok=7__Q-9Bz"> </a>
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    The Future?<br />

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    Grassroots (artist)<br />

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    Professor Wang's scramjet, together with combined cycle engines, 
could allow China to fly Mach 6 airplanes, like this fan art, which 
could fly anywhere in the world in under three hours, at speeds and 
altitudes imprevious to modern air defenses.  It is highly likely that 
due to the nature of material sciences and laws physics, hypersonic 
aircraft like the American SR-72 and its Chinese counterparts would look
 similar to each other (like how most modern attack submarines share the
 same general shape).<br />
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<img alt="China Scramjet Hypersonic" class="full-width unveil-processed full-visible" data-lgsrc="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/chinese_waverider.jpg?itok=Gqs9k0qL" data-medsrc="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_waverider.jpg?itok=1kpY_PAe" data-smsrc="http://www.popsci.com/sites/popsci.com/files/styles/small_1x_/public/chinese_waverider.jpg?itok=AH3b_ag6" data-src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_waverider.jpg?itok=1kpY_PAe" height="494" src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_waverider.jpg?itok=1kpY_PAe" width="640" /><div class="caption-wrapper">
<a class="colorbox-button color-processed cboxElement linkTargets-processed" href="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/chinese_waverider.jpg?itok=Gqs9k0qL"> </a>
  <div class="field-title">
    Scramjet Concept<br />

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<div class="field-credit">
    Henri K<br />

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    This schematic from a Chinese academic journal shows a proposed 
Chinese scramjet.  The scramjet developed and flown by Professor Wang's 
group would likely resemble this drawing.<br />
<br />

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<div data-adafter="false">
Global Times 
newspaper declared Upon NASA's discovery of liquid Martian water last 
week. </div>
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And thanks to Professor Wang Zhengou of the National Defense 
Science and Technology University, China has a critical piece of 
technology not just to get into space, but also into the global 
hypersonic arms race.</div>
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<br /></div>
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<img alt="CSAA Feng Ru Award 2015" class="full-width unveil-processed full-visible" data-lgsrc="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/castc2015_award.jpg?itok=H1VFJ6Zl" data-medsrc="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/castc2015_award.jpg?itok=OeXqhKoE" data-smsrc="http://www.popsci.com/sites/popsci.com/files/styles/small_1x_/public/castc2015_award.jpg?itok=_tEGPeg9" data-src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/castc2015_award.jpg?itok=OeXqhKoE" height="426" src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/castc2015_award.jpg?itok=OeXqhKoE" width="640" /><div class="caption-wrapper">
<a class="colorbox-button color-processed cboxElement linkTargets-processed" href="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/castc2015_award.jpg?itok=H1VFJ6Zl"> </a>
  <div class="field-title">
    Feng Ru<br />

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<div class="field-credit">
    CSAA<br />

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    Professor Wang Zhenguo was one of the nine recipients of the 2nd Feng Ru awards at CSAA's biennial conference in September 2015.<br />
<br />

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<div data-adafter="false">
Scramjet engines mix together air and liquid 
fuel at supersonic speeds, to result in the rapid combustion that 
propels aircraft and missiles at hypersonic speeds over Mach 5.  In 
September 2015, Professor Wang received an award from the Chinese 
Society for Aeronautics and Astronautics (CSAA) for the successful 
development of China's first scramjet engine over the past decade.  In 
fact, Professor Wang took the top billing at the 2nd China Aeronautical 
Science and Technology Conference (CASTC2015) Feng Ru Aviaion Science 
& Technology Elite Awards (Feng Ru was an early 20th century Chinese
 aviation pioneer).  CSAA took pains to mention that the 
kerosene-powered scramjet engine has successfully conducted flight 
tests, which makes China the second nation in the world, after the 
American X-43 and X-51 test vehicles, to develop a working scramjet 
engine for sustained atmospheric hypersonic flight.</div>
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<br /></div>
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<img alt="China Hypersonic Wind Tunnel Research" class="full-width unveil-processed full-visible" data-lgsrc="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/jf-12_hypersonic_wind_tunnel.jpg?itok=aLaHT9nT" data-medsrc="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/jf-12_hypersonic_wind_tunnel.jpg?itok=c_dJ9Vo7" data-smsrc="http://www.popsci.com/sites/popsci.com/files/styles/small_1x_/public/jf-12_hypersonic_wind_tunnel.jpg?itok=MkafH6b5" data-src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/jf-12_hypersonic_wind_tunnel.jpg?itok=c_dJ9Vo7" height="453" src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/jf-12_hypersonic_wind_tunnel.jpg?itok=c_dJ9Vo7" width="640" /><div class="caption-wrapper">
<a class="colorbox-button color-processed cboxElement linkTargets-processed" href="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/jf-12_hypersonic_wind_tunnel.jpg?itok=aLaHT9nT"> </a>
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    JF-12 Hypersonic Wind Tunnel<br />

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    Xinhua News Agency<br />

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    The JF-12 Hypersonic Wind Tunnel began operations in March 2014. 
It is the world's largest hypersonic wind tunnel, capable of achieving 
speeds of Mach 5 to Mach 9.<br />
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While China's seemingly sudden success in 
hypersonic flight may be surprising to outside observers, hypersonic 
technology is a key part of the national security 863 research 
initiative.  In spite of longstanding Chinese difficulties in building 
turbofan engines, scramjet engines are a vastly different and emerging 
field that China has a opportunity to build a lead in.  Along with the 
successful hypersonic glider vehicle WU-14 tests (which demonstrated 
Chinese capability in working high strength, thermal resistant aerospace
 materials), China has the world's largest hypersonic wind tunnel, the 
JF-12.  The JF-12 can produce speeds of up to Mach 9 (NASA"s hypersonic 
wind tunnel reaches to only Mach 7).  The JF-12 would provide Chinese 
scientists with a convenient way to observe supersonic airflow of 
different scramjet configurations, in addition to directly testing 
material durability in laboratory conditions, rather than having to make
 difficult and expensive high-altitude engine test flights.</div>
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<img alt="China UAV Mach 4 Supersonic Hypersonic" class="full-width unveil-processed full-visible" data-lgsrc="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/hypersonic_testbed.jpg?itok=l5IATJEe" data-medsrc="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/hypersonic_testbed.jpg?itok=-oz7JG7M" data-smsrc="http://www.popsci.com/sites/popsci.com/files/styles/small_1x_/public/hypersonic_testbed.jpg?itok=rRHwRt1X" data-src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/hypersonic_testbed.jpg?itok=-oz7JG7M" height="391" src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/hypersonic_testbed.jpg?itok=-oz7JG7M" width="640" /><div class="caption-wrapper">
<a class="colorbox-button color-processed cboxElement linkTargets-processed" href="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/hypersonic_testbed.jpg?itok=l5IATJEe"> </a>
  <div class="field-title">
    The Missing Drone<br />

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    Bai Wei via lt.cjdby.net<br />

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    China was rumored to make the first flight of a Mach 4+ test 
drone in September 2015.  Launched from a H-6 carrier aircraft, the 
drone fired up its combined cycle turbo-ramjet engine to accelerate from
 subsonic to high supersonic speeds.  If the yanked CNA report is 
accurate, the UAV's ability to land makes it the fastest recoverable air
 breathing aircraft in the world.<br />
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Professor Wang's award comes after an 
interesting rumor making the rounds about Chinese supersonic flight.  On
 September 18, 2015, China Aviation News, a respected source on Chinese 
aerospace developments, posted an article on the successful test flight 
of a Mach 4+ reusable UAV testbed that used a variable cycle 
turbo-ramjet engine (the engine uses a turbofan/turbojet at lower 
speeds, but redirects air to the ramjet at speeds above Mach 2.0).  In 
comparison, the SR-71 only flew at speeds of about Mach 3.2.  However, 
China Aviation News quickly yanked the article in a matter of hours, 
suggesting that they may have inadvertently (or deliberately as a 
signal) posted restricted information.</div>
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<img alt="China Combined Cycle Turbo-ramjet engine Variable Cycle" class="full-width unveil-processed full-visible" data-lgsrc="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/chinese_combined_cycle_engine.jpg?itok=Nc4IptoZ" data-medsrc="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_combined_cycle_engine.jpg?itok=2bZCD0bP" data-smsrc="http://www.popsci.com/sites/popsci.com/files/styles/small_1x_/public/chinese_combined_cycle_engine.jpg?itok=Uk1ioWfj" data-src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_combined_cycle_engine.jpg?itok=2bZCD0bP" height="384" src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/chinese_combined_cycle_engine.jpg?itok=2bZCD0bP" width="640" /><div class="caption-wrapper">
<a class="colorbox-button color-processed cboxElement linkTargets-processed" href="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/chinese_combined_cycle_engine.jpg?itok=Nc4IptoZ"> </a>
  <div class="field-title">
    Combined Cycle Engine<br />

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<div class="field-credit">
    shinobiyan at cjdby.net<br />

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<div class="field-body">
    The combined cycle engine shares the same inlet and exhaust 
nozzle for both the turbojet/turbofan and ramjet.  In the upper diagram,
 the air intake ramps behind the ramjet spike direct airflow into the 
turbo core.  In the bottom diagram, the air intake ramps gradually block
 off air flow to the turbo core, redirectly air into the ramjet 
combustion engine for high supersonic (Mach 3.0-Mach 4.0).  Chinese 
combined cycle engines like this concept could be combined with the new 
scramjet to power hypersonic Chinese planes and missiles.<br />
<br />

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<div data-adafter="false">
If it has flown, the Chinese variable cycle 
engine could be combined with Professor Wang's scramjet to form the holy
 grail of hypersonic flight, a combined turbine/scramjet engine. Such a 
combined engine would use subsonic speeds to takeoff, power the ramjet 
to high supersonic speeds, before transforming into scramjet mode for 
speeds above Mach 5.  Lockheed Martin has proposed using a similar 
concept of combined engines for the Mach 6 SR-72, a near-space UAV, to 
the US Air Force.</div>
<div data-adafter="false">
<br /></div>
<div class="media media-element-container media-default full-width color-processed" data-adafter="false">
<img alt="China Hypersonic Plane Bomber Shadow Dragon" class="full-width unveil-processed full-visible" data-lgsrc="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/shadow_dragon.jpg?itok=YHmT8uFs" data-medsrc="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/shadow_dragon.jpg?itok=WWguETuj" data-smsrc="http://www.popsci.com/sites/popsci.com/files/styles/small_1x_/public/shadow_dragon.jpg?itok=PwvkRao2" data-src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/shadow_dragon.jpg?itok=WWguETuj" height="480" src="http://www.popsci.com/sites/popsci.com/files/styles/medium_1x_/public/shadow_dragon.jpg?itok=WWguETuj" width="640" /><div class="caption-wrapper">
<a class="colorbox-button color-processed cboxElement linkTargets-processed" href="http://www.popsci.com/sites/popsci.com/files/styles/large_1x_/public/shadow_dragon.jpg?itok=YHmT8uFs"> </a>
  <div class="field-title">
    Shadow Dragon Hypersonic Bomber<br />

</div>
<div class="field-credit">
    Wendell Minnick<br />

</div>
<div class="field-body">
    The Shadow Dragon hypersonic bomber concept, from the PLAAF's 
Engineering College, won a second prize in the 4th National Future 
Aircraft Design Competition at the 2010 Zhuhai Airshow. The Shadow 
Dragon and other aircraft like it would be powered by scramjet 
technology that China is now racing to take a lead in.<br />

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</article><i><span class="author"><span class="label">By</span>
  
    Jeffrey Lin and P.W. Singer | Popular Science  
</span></i><br />
<br />
<br />
<b><br /></b>
<b><br /></b>
<b>J-31 Gyrfalcon
</b><br />
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<iframe allowfullscreen="" frameborder="0" height="460" src="https://www.youtube.com/embed/BKwhTsU6qKY" width="660"></iframe>

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