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Author Topic: DARPA/LM Skunk Works Blackswift (HTV-3X)  (Read 28314 times)

Offline KJ_Lesnick

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #30 on: May 11, 2008, 05:25:10 pm »
Where has it ever been said it could do that?

There was a thread awhile back about ABMs and such.  And the Nike-Zeus / Spartan were said to be able to hit the bus before it unloaded its warheads from what I remember. 


Kendra

Offline sferrin

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #31 on: May 11, 2008, 05:41:32 pm »
Where has it ever been said it could do that?

There was a thread awhile back about ABMs and such.  And the Nike-Zeus / Spartan were said to be able to hit the bus before it unloaded its warheads from what I remember. 


Kendra

Fairly certain that's wrong.  Spartan's range was only about 450 miles and Zeus a little over half that. 
"DARPA Hard"  It ain't what it use to be.

Offline flateric

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #32 on: May 12, 2008, 02:27:45 am »
Some more graphics to add. Note that those are not official, but first one is pretty cool, while artist didn't get those complicated inlet shape quite right.
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works


Offline flateric

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #34 on: June 14, 2008, 04:55:38 pm »
...almost a month ago. Previous iteration was much more *attractive*
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline mz

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #35 on: June 15, 2008, 04:58:13 pm »
Sorry, I'm a bit uncertain regarding the differences between FALCON and the HATV/Blackswift, so I'll post this here.

A video from fall 2007 shows the Lockheed FALCON hypersonic cruiser going to Mach 9. Huh?

Offline flateric

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #36 on: June 15, 2008, 07:27:31 pm »
FALCON HCV-OS = B-52-sized CAV-carrier strike Hypersonic Cruise Vehicle (O)perational (S)ystem
Blackswift program (previously known as HTV-3X) = scaled down, HCV-OS technology demonstrator
Early HTV-3X closely resembled 'big' HCV-OS,

http://youtube.com/watch?v=tM_XTwtfSgo

and now it ...resembles *that*


« Last Edit: June 15, 2008, 07:34:25 pm by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline fightingirish

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #37 on: June 20, 2008, 02:06:17 pm »
Quote
If like me you are intrigued by DARPA's new Vulcan program to demonstrate a "constant volume combustion" (CVC) engine capable of powering a hypersonic vehicle from rest to Mach 4-plus, a few more details are now available at the research agency's website.

The industry day briefing begins with a review of the problem - how to accelerate a hypersonic vehicle from zero airspeed to the Mach numbers needed to fire up a supersonic-combustion ramjet. It includes a couple of interesting slides on the HTV-3X flight demonstrator conceived by Lockheed Martin's Skunk Works under DARPA's Falcon program.
See also a new B-3 picture in the PDF!
Quote
Source:  Ares - A Defense Technology Blog - DARPA Lifts the Covers on Vulcan Engine - Posted by Graham Warwick at 6/20/2008 8:58 AM CDT
PDF: http://www.darpa.mil/TTO/solicit/BAA08-53/VULCAN_Industry_Day_Presentations.pdf
Slán,
fightingirish

Slán ist an Irish Gaelic word for Goodbye.  :)

Offline sferrin

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #38 on: June 20, 2008, 02:32:53 pm »



"Sorry but that's just too damn ugly.  Back to the drawing board!"  :P
"DARPA Hard"  It ain't what it use to be.

Offline hesham

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #39 on: July 31, 2008, 03:13:18 am »

Offline flateric

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #40 on: July 31, 2008, 03:27:27 am »
Damn, Hesham, this is JUST A PLAIN VERY OLD SPECULATION from a person who knows nothing about hypersonic aerodynamics
Actually, this is first 'SR-72' speculative pic that have appeared.
« Last Edit: July 31, 2008, 03:29:01 am by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline airrocket

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #41 on: September 10, 2008, 08:58:13 pm »
SR-72 pic is UAV stealthy cruise missile design intake is not hypersonic perhaps supersonic at best.

BlackSwift is a DARPA tech demo, a stepping stone towards hypersonic M12 TBCC or RBC HCV. NO Stealth intended or strike capablity. A demo capable of only a few minutes of hypersonic velocity.  DEMO of PDE and modified existing supersonic turbine with inward inlets. Chill on the SR-72 speculation please.

The actual HCV will penetrate at M12, glaring like a white hot blob on infra-red. Stealth not required at these high hyper speeds. One thing to shoot down a target with known repeatable stable orbit. Try hitting a HCV flying an evasive high mach12 pattern.
Vis Viva

Offline CammNut

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #42 on: September 15, 2008, 05:46:23 pm »
Can we just clarify - Blackswift does NOT include PDE (pulsed detonation engine). PDE is part of Darpa's Vulcan program to demonstrate an engine for a full-scale hypersonic vehicle. Vulcan is related to, but separate from, Darpa's Falcon and Blackswift programs.

Blackswift will be powered by a combination of high-Mach turbojets (Rolls-Royce or Williams) and dual-mode ramjet/scramjets (Pratt & Whitney Rocketdyne). The turbojet and scramjet will share the same axisymmetric/inward-turning/three-dimensional/round inlet. A door will divert the flow from the turbojet to the scramjet and vice versa.

Vulcan, meanwhile, is a program to demonstrate an engine - based on an existing, in-production, Mach 2-class fighter engine - that could accelerate a full-scale hypersonic vehicle from zero airspeed to Mach 4-plus and scramjet ingition. In Vulcan, the PDE - either mounted in parallel with or wrapped around the turbojet - would take the place of the ramjet and avoid need for the very expensive development of a full-size high-Mach turbojet.

Offline quellish

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #43 on: September 15, 2008, 11:50:00 pm »
Can we just clarify - Blackswift does NOT include PDE (pulsed detonation engine). PDE is part of Darpa's Vulcan program to demonstrate an engine for a full-scale hypersonic vehicle. Vulcan is related to, but separate from, Darpa's Falcon and Blackswift programs.

Blackswift will be powered by a combination of high-Mach turbojets (Rolls-Royce or Williams) and dual-mode ramjet/scramjets (Pratt & Whitney Rocketdyne). The turbojet and scramjet will share the same axisymmetric/inward-turning/three-dimensional/round inlet. A door will divert the flow from the turbojet to the scramjet and vice versa.

Vulcan, meanwhile, is a program to demonstrate an engine - based on an existing, in-production, Mach 2-class fighter engine - that could accelerate a full-scale hypersonic vehicle from zero airspeed to Mach 4-plus and scramjet ingition. In Vulcan, the PDE - either mounted in parallel with or wrapped around the turbojet - would take the place of the ramjet and avoid need for the very expensive development of a full-size high-Mach turbojet.


Which, when you think about it, is pretty odd. It's like saying developing a PDE is easier than a turbojet. A high mach PDE no less.

As far as I know, there has only been one flight of a PDE, but a few turbojets have flown. While I think the Vulcan program is trying to solve a real problem, with what is potentially a real solution, it has me scratching my head. PDEs have a lot of tough problems to solve, and the current crop of white world PDE programs sort of gloss over some of these. The air force funds the flight of not *one* PDE in a light aircraft, but a cluster. And flies it once before putting it in museum. Huh?




Just to clarify CammNut, my "huh?" is not with your post, it's with the program :)

Offline KJ_Lesnick

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DARPA/LM Skunk Works Blackswift (HTV-3X)
« Reply #44 on: September 16, 2008, 10:53:12 am »
Is Blackswift to be controlled by a person remotely or to be fully automated?


KJ