a reply to: BASSPLYR
Well, having read the initial thread I don’t see how you’d rule out use of boron based zip fuels.
I havent observed her of course so I cant really comment on how the exhaust flame looks.
But I’d think depending on the exact chemical mixture various shades of green would be possible. ‘Doesn’t look exactly like boron burning on YT,
therefore must be something else’ (or something similar) is a rather weak argument IMO.
I’m not generally opposed to the thought of more advanced or even exotic engine technology being researched in the US. Its entirely possible IMO,
that much more advanced, maybe even magic-like stuff to the uninformed is being worked on.
But is also think, it’s a very, very steep climb from a theoretical research paper or even some proof of concept experiments to something resembling
something remotely close to an operational capability. Just because it black world doesn’t mean its always cutting edge, point of the spearhead
tech. Sometimes you just need stuff that works.
Meaning – and I might be wrong about this, but IMO they build the Green Lady because after 0911 they had an actual need for a strategic recon
capability and the funds to do it. I really don’t believe there was an active strategic recon program after 8 years of Clinton cuts to the armed
forces. It probably died during Bush I to be honest.
Anyway, you don’t use the most advanced technology outthere when there is an immediate capability requirement. You look at whats available today,
not tomorrow and throw something together given the tools available to you in order to field an operational capability as soon as possible. Alongside
this effort you start investing in more advanced technologies.
That’s how you end up with the Green Lady and the renewed effort into everything hypersonic on the high end. The Green Lady kinda like a Blackbird+
in most ways – very impressive but nothing earthshattering, just a leap in performance. Using Zip fuel is an obvious way to do this, it takes a
understood technology - turboramjets - upgrade it with latest material technologies and the wonder fuel already researched decades ago and integrate
it into an already used/researched but shelved design – comparatively low risk doable within a relatively short timeframe.
You don’t build an entirely new engine based on revolutionary technology and put it in an aircraft cell dreamed up decades ago. Makes no sense.
Anyway, regarding the SR-72, IMO they achieved a breakthrough with the TBCC engine (HSRFRV?) and are trying to rather aggressively market it. Why
would it be a red hering? The Blackswift was all about TBCC, it went away, there was public talk about a follow on project and years later Lockheed
campaigns hard for money to build a matured grey world TBCC demonstrator. Adds up.