SR-72 Confirmed: Mach 6 Project Blackswift

Did anyone ever close the loop on why the Air Force ordered a bunch of JP7 several years ago? I remember it raised some eyebrows since there is nothing “known” out there that uses JP7 aside from the SR-71. I can’t recall when exactly this was, but I came across a JP7 post on one of the SR-71 pages I follow and it reminded me that the military has some modern day demand for a fuel that won’t burn in any aircraft that we know of. Just curious if it fits into this project or if the SR-72 is what’s burning the boron based fuel that’s so notoriously green?

I recall reading that thread some time ago as well. I remember it being very intriguing, relating to the to the "Green Lady" aircraft, wasn't it?

Officially it was for the X-51... I insist on the word officially lol

I haven't posted one of these in a while. However, with the progress the Chinese are making I feel the need. The Chinese have made hypersonic scramjets and other airbreathers a national priority. This is what is published in the open literature.

Investigation of combustion characteristics in a hydrogen-fueled scramjet combustor

Authors:

Ye Tian, Wen Shi, Mingming Guo Yuan Liu Chenlin Zhang Jialing Le

Affiliations:

Science and Technology on Scramjet Laboratory, China Aerodynamics Research and Development Center, Mianyang, 621000, China

Shenyang Aircraft Design and Research Institute, Shenyang, 110035, China

Abstract:

The combustion characteristics of a hydrogen-fueled scramjet combustor were investigated experimentally and numerically. One nonreacting case (case 1), and two different equivalence ratio (ER) reacting cases (cases 2 and 3) were compared. The combustion process of each reacting case was divided into three phases. In the first phase, the monitor pressure in case 2 (ER = 0.1) reached a higher level due to the fuel injected before the hydrogen was ignited, whereas the change in case 3 (ER = 0.3) was the opposite, being less than that in the nonreacting flow. Almost all of the hydrogen in case 2 was in the front of the cavity, and that in case 3 was both throughout the whole cavity and near the top wall behind the cavity. In the second phase, the ignition times were about 0.010 s in case 2 and about 0.022 in case 3; a larger ER of hydrogen might be difficult to ignite. Finally, in the last phase, the hydrogen combustion was stable. The shock train in case 3 was pushed into the isolator, and the disturbing distance was about 0.08 m, in accordance with the wall pressure distribution. The higher static temperature in case 2 was mainly in the back of the cavity and that in case 3 was in the cavity shear layer, in line with the hydroxyl planner laser-induced fluorescence (OH-PLIF) results. The combustion mode in case 2 was supersonic combustion and that in case 3 was subsonic combustion.

link:
www.sciencedirect.com...

One of these dates is frighteningly soon.

a reply to: anzha
Yes they are speed balling a lot of space stuff at the moment.Feels like Deja Vu from the 80,s with the USA getting stuff into space..
Yeah I think a lot of the X-51 tech has been forwarded onto newer bigger platforms..

a reply to: Blackfinger

Got a dark site that might hint an anything? Watched this tread for years frome something I saw.

Top Secret Forums is a start.

www.parabolicarc.com...

Pulse engines are pretty simple..Fuel ,air and spark and it keeps going.At height how do they keep the oxygen content constant?Pressurized tanks?

www.businessinsider.com...

a reply to: anzha
China you think?

a reply to: Blackfinger

doubt it.


My guess would be someone in NATO

I thought this was rather interesting. We might have something similar or further along....

www.thedrive.com...

originally posted by: aliensporebomb
I thought this was rather interesting. We might have something similar or further along....

www.thedrive.com...

Damn those pesky Chinese, they only gone and stole my design.

a reply to: aliensporebomb

There are several RBCC designs that have been used for testing. It's a lot easier than a TBCC design.

a reply to: aliensporebomb

if you look super close at those drones before they were going down the main street for the parade


it clearly had wooden parts and flaps that were not consistent with super highspeed aircraft.


and if you look at the engine bells they are clearly new and never been fired. there isn't even heat discoloration on the nose.

and the most important part there is no visible ISR EO systems that I cant see, so is this just vapor ware and stage craft or a real drone ready for production?

if anything they MIGHT be catching up to their claims but their rocket drone is old hat here in the US and the reason we don't use them is it never worked that well. Example the D-21.

the US even in a full out war with ASAT's in use the US has the ability to put emergency sats into space at a push of a button. You think all our ICBM's are just for nuclear warheads?......

nypost.com...

Missile skirts the aircraft bit. However, around the world with a Chinese nuclear, hypersonic missile. weee....

Rogoway did a piece too:

www.thedrive.com...

a reply to: anzhalinlk

sounds like a fancy FOBS system or a MARV.




the whole video is great but if you want to see something cool start at about 6 mins and watch