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Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept



 
 
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  #1  
Old June 3rd 20, 06:31 PM posted to sci.space.policy
Scott Kozel
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Posts: 62
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept

Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept
https://www.youtube.com/watch?v=EgtmR9IRalQ
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  #2  
Old June 3rd 20, 07:17 PM posted to sci.space.policy
David Spain
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Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept

I'd call this plan the mother of all BDRs*.

Dave

*Big Disposable Rockets
  #3  
Old June 3rd 20, 09:15 PM posted to sci.space.policy
Scott Kozel
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Posts: 62
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept

On Wednesday, June 3, 2020 at 2:17:20 PM UTC-4, David Spain wrote:
I'd call this plan the mother of all BDRs*.

Dave

*Big Disposable Rockets


The solid boosters might be reusable / refurbishable.

Given the size of the shock wave and noise footprint, it is obvious why it is
launched at sea and not at the Cape.
  #4  
Old June 4th 20, 12:06 PM posted to sci.space.policy
Jeff Findley[_6_]
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Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept

In article ,
says...

Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept
https://www.youtube.com/watch?v=EgtmR9IRalQ

The fantasy part was the 372-inch solid motor to be used as strap-ons.
The largest diameter solid rocket motor ever tested was 260 inches,
which is a lot smaller when you take into account diameter vs area
involves a square term.

At any rate, here's a paper on the 260 inch motor testing:

https://ntrs.nasa.gov/archive/nasa/c...0000033816.pdf

Actual video of a testing (love that 60s voice-over:

https://www.youtube.com/watch?v=rmtzFNy1t3U

On the third test firing (the SL-3 motor), the nozzle blew right off the
motor! So, needless to say, there were serious issues with scaling
solid rocket motors up that big.

If you search YouTube for "Aerojet Dade Rocket Facility", you'll find
several videos of "urban explorers" (fancy name for trespassers)
exploring the long abandoned test facility.

NASA Watch mentioning the motor (comments are interesting):

http://nasawatch.com/archives/2015/0...orgot-the.html

One of the problems with large solids is that the vibrations scale up
with the size of the booster. So, I can't imagine the vibrations that
would have been caused by 10 372-inch solid motors strapped onto this
proposed Boeing SSTO! And we thought the space shuttle provided for a
rough ride with two puny 120 inch solid rocket motors firing!

Jeff
--
All opinions posted by me on Usenet News are mine, and mine alone.
These posts do not reflect the opinions of my family, friends,
employer, or any organization that I am a member of.
  #5  
Old June 4th 20, 01:16 PM posted to sci.space.policy
Scott Kozel
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Posts: 62
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept

On Thursday, June 4, 2020 at 7:06:55 AM UTC-4, Jeff Findley wrote:
In article ,
says...

Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept
https://www.youtube.com/watch?v=EgtmR9IRalQ

The fantasy part was the 372-inch solid motor to be used as strap-ons.
The largest diameter solid rocket motor ever tested was 260 inches,
which is a lot smaller when you take into account diameter vs area
involves a square term.


Besides, what payload of 4 million pounds (2,000 tons) would fit into the
payload capsule?

That is the weight of a large WW II destroyer warship.
  #6  
Old June 4th 20, 06:23 PM posted to sci.space.policy
Greg \(Strider\) Moore
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Posts: 752
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept

"Jeff Findley" wrote in message
...

In article ,
says...

Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch
Vehicle Concept
https://www.youtube.com/watch?v=EgtmR9IRalQ


The fantasy part was the 372-inch solid motor to be used as strap-ons.
The largest diameter solid rocket motor ever tested was 260 inches,
which is a lot smaller when you take into account diameter vs area
involves a square term.


Holy crap! This reminds me of the launch in Civilization III if you made it
that far.

That said, I'd be surprised if the acoustic loads didn’t' destroy the rocket
itself!

At any rate, here's a paper on the 260 inch motor testing:

https://ntrs.nasa.gov/archive/nasa/c...0000033816.pdf

Actual video of a testing (love that 60s voice-over:

https://www.youtube.com/watch?v=rmtzFNy1t3U

On the third test firing (the SL-3 motor), the nozzle blew right off the
motor! So, needless to say, there were serious issues with scaling
solid rocket motors up that big.

If you search YouTube for "Aerojet Dade Rocket Facility", you'll find
several videos of "urban explorers" (fancy name for trespassers)
exploring the long abandoned test facility.

NASA Watch mentioning the motor (comments are interesting):

http://nasawatch.com/archives/2015/0...orgot-the.html

One of the problems with large solids is that the vibrations scale up
with the size of the booster. So, I can't imagine the vibrations that
would have been caused by 10 372-inch solid motors strapped onto this
proposed Boeing SSTO! And we thought the space shuttle provided for a
rough ride with two puny 120 inch solid rocket motors firing!

Jeff


Yeah. Scaling up would have been... interesting.


--
Greg D. Moore http://greenmountainsoftware.wordpress.com/
CEO QuiCR: Quick, Crowdsourced Responses. http://www.quicr.net
IT Disaster Response -
https://www.amazon.com/Disaster-Resp...dp/1484221834/

  #7  
Old June 4th 20, 10:38 PM posted to sci.space.policy
Jeff Findley[_6_]
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Posts: 2,307
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept

In article ,
says...

On Thursday, June 4, 2020 at 7:06:55 AM UTC-4, Jeff Findley wrote:
In article ,
says...

Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept
https://www.youtube.com/watch?v=EgtmR9IRalQ

The fantasy part was the 372-inch solid motor to be used as strap-ons.
The largest diameter solid rocket motor ever tested was 260 inches,
which is a lot smaller when you take into account diameter vs area
involves a square term.


Besides, what payload of 4 million pounds (2,000 tons) would fit into the
payload capsule?

That is the weight of a large WW II destroyer warship.


Good question. Maybe the military has thought of something. Why yes
they have: tungsten rods

The Air Force's 'rods from god' could hit with the force of a nuclear
weapon ? with no fallout

Blake Stilwell, We Are The Mighty Feb 4, 2019, 10:05 AM

https://tinyurl.com/ycvjylx7

Imagine dropping 4 million pounds of tungsten rods on your enemy's
underground fortifications.

Jeff
--
All opinions posted by me on Usenet News are mine, and mine alone.
These posts do not reflect the opinions of my family, friends,
employer, or any organization that I am a member of.
  #8  
Old June 5th 20, 01:43 AM posted to sci.space.policy
Sylvia Else[_3_]
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Posts: 87
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept

On 04-Jun-20 3:31 am, Scott Kozel wrote:
Boeing's 4 Million lbs Payload Rocket (LMLV) Large Multipurpose Launch Vehicle Concept
https://www.youtube.com/watch?v=EgtmR9IRalQ


Just as well they never got to do it. They'd string it out for as long
as possible, getting ever more government cash backed be congressmen
directing money to their own constituencies, without any regard to the
national benefit.

Sylvia.
  #9  
Old June 5th 20, 02:15 AM posted to sci.space.policy
Scott Kozel
external usenet poster
 
Posts: 62
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept

On Thursday, June 4, 2020 at 5:38:49 PM UTC-4, Jeff Findley wrote:
In article ,
says...

Besides, what payload of 4 million pounds (2,000 tons) would fit into the
payload capsule?

That is the weight of a large WW II destroyer warship.


Good question. Maybe the military has thought of something. Why yes
they have: tungsten rods

The Air Force's 'rods from god' could hit with the force of a nuclear
weapon ? with no fallout

Blake Stilwell, We Are The Mighty Feb 4, 2019, 10:05 AM

https://tinyurl.com/ycvjylx7

Imagine dropping 4 million pounds of tungsten rods on your enemy's
underground fortifications.


Interesting that you mention tungsten. It is a very dense material, 2.7 times
the density of iron.

Specific Gravity
Aluminum --- 2.80
Iron ------- 7.13
Lead ------ 11.34
Tungsten -- 19.25
Gold ------ 19.32
  #10  
Old June 5th 20, 02:28 AM posted to sci.space.policy
Alain Fournier[_3_]
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Posts: 548
Default Boeing's 4 Million lbs Payload Rocket (LMLV) Large MultipurposeLaunch Vehicle Concept

On Jun/4/2020 at 21:15, Scott Kozel wrote :
On Thursday, June 4, 2020 at 5:38:49 PM UTC-4, Jeff Findley wrote:
In article ,
says...

Besides, what payload of 4 million pounds (2,000 tons) would fit into the
payload capsule?

That is the weight of a large WW II destroyer warship.


Good question. Maybe the military has thought of something. Why yes
they have: tungsten rods

The Air Force's 'rods from god' could hit with the force of a nuclear
weapon ? with no fallout

Blake Stilwell, We Are The Mighty Feb 4, 2019, 10:05 AM

https://tinyurl.com/ycvjylx7

Imagine dropping 4 million pounds of tungsten rods on your enemy's
underground fortifications.


Interesting that you mention tungsten. It is a very dense material, 2.7 times
the density of iron.

Specific Gravity
Aluminum --- 2.80
Iron ------- 7.13
Lead ------ 11.34
Tungsten -- 19.25
Gold ------ 19.32


It also has a very high melting point. So it can survive entry in the
atmosphere.


Alain Fournier
 




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