Lockheed Martin SR-72?

[Steve Pace]

Thanks

 

[Adventurer104]

Chinese allegedly shot down a D-21 Mach 3 drone more than 30 years ago
Cheers, Woody

Please direct me to rumor source. Fascinating!

Thanks

 

[bobbymike]

Inside America's Next Spyplane

A secret, hypersonic replacement for the legendary SR-71 promises to transform military aviation

www.popsci.com

I hope I'm not being pie in the sky but there sure seems to be an accumulation of stories recently pointing to hypersonic weapons/platforms 'in the next five years'

 

[sferrin]

They were saying that back in the 80s too. Aurora, X-30, scramjet everything. . . :'(

 

[bobbymike]

They were saying that back in the 80s too. Aurora, X-30, scramjet everything. . . :'(

Cool picture though ;D

I posted elsewhere in different thread (HSSW, X-51, etc.) that with 30 years of $40-$70 billion in 'black budgets' something has to be 'out there' it is just hard to believe a trillion + over 30 years hasn't bought us anything.

And yes I am an eternal optimist with these things (some would say naïve)

 

[Stargazer]

I posted elsewhere in different thread (HSSW, X-51, etc.) that with 30 years of $40-$70 billion in 'black budgets' something has to be 'out there' it is just hard to believe a trillion + over 30 years hasn't bought us anything.
And yes I am an eternal optimist with these things (some would say naïve)

I'm kinda like you on this particular issue, although there is also a real possibility that all this "black budget" thing could also have been a cover-up for totally different spendings, conveniently hidden under the "black" label so that there would be no need to justify them...

 

[Grey Havoc]

I posted elsewhere in different thread (HSSW, X-51, etc.) that with 30 years of $40-$70 billion in 'black budgets' something has to be 'out there' it is just hard to believe a trillion + over 30 years hasn't bought us anything.
And yes I am an eternal optimist with these things (some would say naïve)

I'm kinda like you on this particular issue, although there is also a real possibility that all this "black budget" thing could also have been a cover-up for totally different spendings, conveniently hidden under the "black" label so that there would be no need to justify them...

Under this administration, that goes without saying. [sigh]

 

[dark sidius]

Sadly, SR-72 is just a beautiful picture on a magazine nothing else in the real world , we see something like that on the net since 10 years and in reality nothing in the sky since that.

 

[The Artist]

I posted elsewhere in different thread (HSSW, X-51, etc.) that with 30 years of $40-$70 billion in 'black budgets' something has to be 'out there' it is just hard to believe a trillion + over 30 years hasn't bought us anything.
And yes I am an eternal optimist with these things (some would say naïve)

I'm kinda like you on this particular issue, although there is also a real possibility that all this "black budget" thing could also have been a cover-up for totally different spendings, conveniently hidden under the "black" label so that there would be no need to justify them...

Under this administration, that goes without saying. [sigh]

To be honest, that statement could be made about any administration over the last thirty years or so.

 

[fightingirish]

http://www.popsci.com/inside-americas-next-spyplane
[...]

BTW this illustration is done by Don Foley.

 

[XP67_Moonbat]

I've noticed some artwork for the SR-72 features 2 separate podded engines. And I've also seen art with a single engine bay. Perhaps LM hasn't pinned down the final configuration yet

 

[Steve Pace]

Another LM released SR-72 image. -SP

 

[XP67_Moonbat]

My theory is that LM had two schools of thought on whether to go single or twin engine for their baseline configuration. I have another theory that maybe the single-engine variant could be a sub-scale demonstrator. It's just theories here and I'm really just taking stabs in the dark.

 

[sferrin]

I've noticed some artwork for the SR-72 features 2 separate podded engines. And I've also seen art with a single engine bay. Perhaps LM hasn't pinned down the final configuration yet

The single engine one was for a demonstrator.

http://aviationweek.com/defense/skunk-works-reveals-sr-71-successor-plan

 

[Stargazer]

I've noticed some artwork for the SR-72 features 2 separate podded engines. And I've also seen art with a single engine bay. Perhaps LM hasn't pinned down the final configuration yet

Unless I'm mistaken of the victim of some display bug, the two pics you posted are exactly the same.

 

[XP67_Moonbat]

Woops! ;D Fixed it now. Thanks

 

[blackkite]

Hi!
https://www.youtube.com/watch?v=PFzSDLrDdJk

 

[blackkite]

HSSW missile.
http://www.lockheedmartin.com/us/products/high-speed-strike-weapon-hssw.html

http://theaviationist.com/2013/11/07/hssw-image/

 

[blackkite]

Is it another propulsion concept?
http://nextbigfuture.com/2013/11/hypersonic-sr72-and-trijet-engine.html

 

[blackkite]

3D model. How about this model?
http://www.turbosquid.com/3d-models/3d-model-lockheed-martin-sr-72/780846

 

[Steve Pace]

Totally cool! -SP

 

[blackkite]

Many thanks great Steve.

 

[flateric]

3D model. How about this model?

Authentic planform view from ADP

 

[phrenzy]

I wonder if they're feeling out a reaction engines engine at all, can't deny the synergy between their high mach atmospheric passenger aircraft and this.

I'd be very interested to know about the crew configuration. Obviously no windows so is it going to be a camera and screen layout for two people like the blackbird or maybe optionally manned or even unmanned?

 

[marauder2048]

Is it another propulsion concept?
http://nextbigfuture.com/2013/11/hypersonic-sr72-and-trijet-engine.html

TriJet was designed around a Mach 7 cruising speed which dictated a certain inlet capture area for the scramjet.
To prevent unstarts, the turbine would be required to work up to Mach 4. To get around that, they incorporated an
ERJ in a separate duct with its own doors.


IIRC, SR-72 is designed around a Mach 6 cruise which reduces the inlet requirements
allowing you to discontinue the turbine at ~ Mach 3 and obviates the need for the separate ERJ duct + doors.

 

[blackkite]

3D model. How about this model?

Authentic planform view from ADP

Thanks. I think this plan form is good. SR-72 has double delta wing.
But tail plan shape is little different from the artisitc impressions.

 

[blackkite]

I wonder if they're feeling out a reaction engines engine at all, can't deny the synergy between their high mach atmospheric passenger aircraft and this.

I'd be very interested to know about the crew configuration. Obviously no windows so is it going to be a camera and screen layout for two people like the blackbird or maybe optionally manned or even unmanned?

SR-72 is an unmanned vehicle.

http://en.wikipedia.org/wiki/Lockheed_Martin_SR-72

 

[blackkite]

Is it another propulsion concept?
http://nextbigfuture.com/2013/11/hypersonic-sr72-and-trijet-engine.html

TriJet was designed around a Mach 7 cruising speed which dictated a certain inlet capture area for the scramjet.
To prevent unstarts, the turbine would be required to work up to Mach 4. To get around that, they incorporated an
ERJ in a separate duct with its own doors.


IIRC, SR-72 is designed around a Mach 6 cruise which reduces the inlet requirements
allowing you to discontinue the turbine at ~ Mach 3 and obviates the need for the separate ERJ duct + doors.

Thanks a lot.

 

[marauder2048]

IIRC, SR-72 is designed around a Mach 6 cruise which reduces the inlet requirements
allowing you to discontinue the turbine at ~ Mach 3 and obviates the need for the separate ERJ duct + doors.

Current testing at UTRC is looking to take the transition down to Mach 2. There is no such thing as a Mach 3 turbine these days which fits the bill.

My theory is that they have onboard LOX to:

1. inject pre-compressor for cooling (DARPA RASCAL style which had P&W F100s running @ Mach 3.5+ with LOX + water )
2. use as oxidizer for the Ejector Ramjets in the DMRJ

 

[blackkite]

Thanks a lot. Very interesting information. B)
Main structural material is Titanium alloy, Inconel alloy or heat resistant composite?
Fuel is JP6?
SR-72 will be a prototype of HSBJ or HST?
I'm irritated with a slow subsonic passenger plane such as Boeing or Airbus for a long time indeed. ;D
Please deal with someone somehow.

 

[blackkite]

Hi!
http://www.lockheedmartin.com/us/news/features/2015/sr-72.html

http://aviationweek.com/blog/meet-son-blackbird-2013

 

[blackkite]

http://www.popsci.com/inside-americas-next-spyplane

SKIN

Aerodynamic friction at speeds exceeding Mach 5 will heat an aircraft’s exterior to 2,000 degrees. At that point, conventional steel airframes will melt. So engineers are looking at composites—the same kinds of high-performance carbon, ceramic, and metal mixes used for the noses of intercontinental ballistic missiles and space shuttles. Every joint and seam must be sealed: Any air leak at hypersonic speed, and the in-rushing heat would cause the aircraft to collapse. (That’s what doomed the space shuttle Columbia).

 

[XP67_Moonbat]

Good thing I didn't spend $4.99+tax for 2 measly pages! I got all I need here!

 

[blackkite]

Hi!
I already ordered this book to Amazon. ;D

 

[XP67_Moonbat]

The skimpy article didn't justify the cost for me.

 

[flateric]

But tail plan shape is little different from the artisitc impressions.

It fits single engined demonstrator though. PopSci renders are complete crap in terms of planform view accuracy

 

[blackkite]

You mean this one?

 

[blackkite]

Hi!
https://www.youtube.com/watch?v=d8U_w-MiX-A

 

[muttbutt]

Good catch Blackkite. B)

 

[blackkite]

Hi!
Certainly, the figure of the length direction of the whole fuselage about this picture may be destroyed by perspective intentionally.