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Boeing B-7 Valkyrie II

Started by Jesse220, March 10, 2015, 06:52:18 PM

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Jesse220

March 10, 2015, 06:52:18 PM
I've been thinking if Boeing would redesigned the XB-70 Valkyrie Bomber in to a Hypersonic Stealth bomber as part of the Next Generation Bomber program. What do you say. :rolleyes:

pyro-manic

#1
March 10, 2015, 07:24:22 PM
The Valkyrie wasn't hypersonic, nor was it stealthy. The two are mutually exclusive. Anything moving at Mach 5 is going to be very easy to spot.
Some of my models can be found on my Flickr album >>>HERE<<<

Captain Canada

#2
March 10, 2015, 07:43:41 PM
Maybe not.....but it would sure be a neat model to watch you build !

:cheers:
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Jesse220

#3
March 10, 2015, 08:02:57 PM
Quote from: pyro-manic on March 10, 2015, 07:24:22 PM
The Valkyrie wasn't hypersonic, nor was it stealthy. The two are mutually exclusive. Anything moving at Mach 5 is going to be very easy to spot.

I know But Imagine if we could redesign the Valkyrie Bomber into a hypersonic stealth bomber it would be a replacement for the B-52 Stratofortress for the USAF.

Dizzyfugu

#4
March 11, 2015, 01:09:06 AM
Quote from: pyro-manic on March 10, 2015, 07:24:22 PM
The Valkyrie wasn't hypersonic, nor was it stealthy. The two are mutually exclusive. Anything moving at Mach 5 is going to be very easy to spot.

...and probably to hear!

eatthis

#5
March 11, 2015, 01:28:09 AM
Quote from: Dizzyfugu on March 11, 2015, 01:09:06 AM
Quote from: pyro-manic on March 10, 2015, 07:24:22 PM
The Valkyrie wasn't hypersonic, nor was it stealthy. The two are mutually exclusive. Anything moving at Mach 5 is going to be very easy to spot.

...and probably to hear!

not until its a long way past  :lol:
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pyro-manic

#6
March 11, 2015, 02:06:59 AM
Quote from: Jesse220 on March 10, 2015, 08:02:57 PM
I know But Imagine if we could redesign the Valkyrie Bomber into a hypersonic stealth bomber it would be a replacement for the B-52 Stratofortress for the USAF.

The point is it'd be something else entirely, and not a Valkyrie. You can't be hypersonic and stealthy, as I said. One or the other, not both. If you want to design something that maybe looks a little bit like a Valkyrie, then go for it. A hypersonic design might end up similar in some ways. But it wouldn't be, and couldn't be, stealthy.
Some of my models can be found on my Flickr album >>>HERE<<<

pyro-manic

#7
March 11, 2015, 03:01:15 AM
At that kind of speed, the thermal signature is going to be huge, never mind trying to make a radar-absorbent coating that can withstand the heat.

If someone built hypersonic bombers, someone else would build missiles (or lasers or whatever)  to shoot it down. You don't actually need a missile that's faster, if you launch it from the right spot.
Some of my models can be found on my Flickr album >>>HERE<<<

rickshaw

#8
March 11, 2015, 05:02:22 AM
Can't find a "Boeing B-7 Valkyrie II" when I do a Google search.  Are you sure you didn't mean the Douglas B-7?



It'd need a awful lot of work to redesign for hypersonic flight...

If by chance you meant the North American XB-70 Valkyrie, perhaps you should change the thread title?  ;)
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Jesse220

#9
March 11, 2015, 03:10:09 PM
Quote from: rickshaw on March 11, 2015, 05:02:22 AM
Can't find a "Boeing B-7 Valkyrie II" when I do a Google search.  Are you sure you didn't mean the Douglas B-7?



It'd need a awful lot of work to redesign for hypersonic flight...

If by chance you meant the North American XB-70 Valkyrie, perhaps you should change the thread title?  ;)

No. Look up XB-70 Valkyrie and imagine it as a redesigned bomber

pyro-manic

#10
March 11, 2015, 03:20:33 PM
That's what's called a joke, Jesse.... :rolleyes:


For a hypersonic bomber, perhaps try the so-called "SR-72", a project LockMart is currently working on. Mach 6 unmanned reconnaissance aircraft. But just tack on a couple of appropriate weapons instead of the recce payload.

http://www.lockheedmartin.co.uk/us/news/features/2013/sr-72.html
Some of my models can be found on my Flickr album >>>HERE<<<

sandiego89

#11
March 11, 2015, 04:31:58 PM
The design shape of the XB-70 has several things that increase the radar cross section:

Right angles, lots of them.

Slab sides: wing, downward moving wing tips, enormous vertical stabilizers, engine pod.

Exposed engine exhaust area, with 6 big engines, "turkey feathers", open areas between the engines that would be radar reflectors.

Gaping air intake, again slab sided with right angles. Huge radar return.

So as others have said, by the time you "fixed" these issues, or even softened them, you would be far removed from a XB-70.   
Dave "Sandiego89"
Chesapeake, Virginia, USA

Jesse220

#12
March 11, 2015, 06:17:45 PM
Quote from: sandiego89 on March 11, 2015, 04:31:58 PM
The design shape of the XB-70 has several things that increase the radar cross section:

Right angles, lots of them.

Slab sides: wing, downward moving wing tips, enormous vertical stabilizers, engine pod.

Exposed engine exhaust area, with 6 big engines, "turkey feathers", open areas between the engines that would be radar reflectors.

Gaping air intake, again slab sided with right angles. Huge radar return.

So as others have said, by the time you "fixed" these issues, or even softened them, you would be far removed from a XB-70.   

That might be it :cheers:

seadude

#13
March 12, 2015, 07:41:02 PM
Forget the XB-70. Just take an old Testors 1/72 scale SR-75 Penetrator kit and turn that into a stealthy hypersonic bomber or whatever. Oh wait, nevermind. It's already on my "to do" list a few years from now.  ;D  ;D  ;D
Modeling isn't just about how good the gluing or painting, etc. looks. It's also about how creative and imaginative you can be with a subject.
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McColm

#14
March 13, 2015, 04:28:33 AM
The SR-75 is an expensive kit to buy secondhand.
N.A. did have a few test models made before choosing the XB-70 layout.
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