SR-72 Confirmed: Mach 6 Project Blackswift , page 17
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reply posted on 30-9-2009 @ 05:19 PM by aircrafter
reply to post by intelgurl



Wow thanks for the info and news.

-Eric
Gosh I miss flying but now onto a new glass etching hobby.



reply posted on 6-11-2009 @ 08:56 AM by stratsys-sws
reply to post by sealteamsix



Hi sealteamsix,

I agree with you in that I don't believe that the Aurora existed, I also believe that any short term hypersonic aircraft will be using combined cycle engines, as Intelgurl has pointed out with the P&W press release (nice one Intelgurl).

However, where do you get your data about PDE's? I think you are confusing PDE's with pulsejet engines? PDE are amongst the most efficient engines due to their mechanical simplicity and thermodynamic efficiency.
Whilst pulsejets use a similar principle, they work via deflagration (burning) of fuel, whereas Pulse Detonation Engines........PDE's......actually detonate the mixture.
It's a bit like comparing gun powder to plastic explosive, one burns very fast, the other detonates via a shockwave and releases much more energy for a given mass.
I would say that should PDE's ever be developed to run smoothly and reliably, then they will be more efficient than combined cycle engines, and much cheaper to produce. (but bloody loud!)

Cheers

Robbie


reply posted on 6-11-2009 @ 11:00 AM by sealteamsix
reply to post by stratsys-sws



Ah, you're correct stratsys-sws. I was referring to Pulsjet engines, not PDE's! I will have to read more carefully next time.


reply posted on 5-1-2010 @ 07:48 AM by howie82788
reply to post by intelgurl



The second photo looks like the new Space shuttle from NASA... Go on their website and look it up...

New Space Shuttle To be in use by 2013

or the old design

Classic Space Shuttle


reply posted on 13-2-2010 @ 08:38 PM by dbloch7986
reply to post by howie82788



I agree, they do look very similar. I also saw that second "model" on the military channel's "dogfights" as a design for a suboribital but exoatmospheric fighter "jet".


reply posted on 22-4-2010 @ 03:05 AM by LightBright
I know that the technology in the field for energy production is much more advanced than is publicly realized. If we have something equivalent to a nuclear powered electric power source the size of a conventional 50kw gen set that doesn't use radioactive fuel then you can realize energy weapons. I am certain that any high speed object moving on earth could be tracked roughly using passive RF techniques. I have seen examples of receivers that use capacitors as the antenna element to register movement in a wide area.

I would think that mach 6 objects even if they had reduced radar and thermal signatures would have tell tales that would make them stand out from all the non mach 6 stuff out there.

If the SR72 is coolest # we have behind the cloak of black skunk-works projects I would be really disappointed.

But I am thinking its all about the generators stupid.
Obviously Electric aircraft have it all over every thing but balloons when it comes to altitude and duration of flight when combined with solar tech.
And this is only with wisp of an aircraft using simple propeller technology.

If you start off with a small power source in say the 10 MW range then I would think that all sorts of possibilities open up.
For starters you could build a fairly conventional air craft only using an electric motor in place of the petrol turbine or piston engine that power todays commercial aircraft. The resulting craft could easily have jet fighter type performance and eclipse any thing publicly revealed for duration of flight and altitude.

NASA's tether experiment really makes me suspect electric propulsion might be able to get you into orbit or sling you in to space also.

Suffice it to say there is a growing body of super tech out there shrouded by black projects of countries like Germany, Japan, Russia, US, UK, India. But at the heart of most all this technology will be compact lightweight non radioactive plentiful electric power. And from what I have heard through the rumor mill that tech exists and is in the field in combat now. So I suspect any thing we are seeing using air-breathing engines is so last year that it really doesn't deserve consideration as a black super tech project. Its just the small potatoes.


reply posted on 28-7-2010 @ 01:19 PM by Astr0
I would like to bring this link to your attention - it is very worthwhile and could possibly shed light on what is happening with the Sr-72 and its brethren.

www.flightglobal.com...

Page 37 & 38.

Mach 6 RBCC ISR system - 5000 miles range and 2000lb payload. Sounds ideal, and considering the amount of exploratory work in the RBCC propulsion field it seems almost inevitable that some day soon we will see just such a system in operational use.
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