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Space launch system..



 
 
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  #1  
Old July 14th 12, 10:54 AM posted to sci.space.shuttle
Brian Gaff
external usenet poster
 
Posts: 2,312
Default Space launch system..


In the item below I see we seem to still be talking huge solids. I thought
the vibration problems associated with the chaotic burning etc, was a
problem?

If they are determined to use this technology, I just wondered how much is
need and how much is politics.
In effect this is what is done on other designs but perhaps rather larger
and a bigger proportion of the thrust, but it does seem counter intuitive to
me.
Kind of like saying, oh dear we have this core stage but it will be too
slow of the pad so lets lift the tank with solids like wot we did on
Shuttle.

Brian
July 13, 2012

Trent J. Perrotto
Headquarters, Washington
202-358-0321


Kim Henry
Marshall Space Flight Center, Huntsville, Ala.
256-544-0034


RELEASE: 12-234

NASA SELECTS SPACE LAUNCH SYSTEM ADVANCED BOOSTER PROPOSALS

WASHINGTON -- NASA has selected six proposals to improve the
affordability, reliability and performance of an advanced booster for
the Space Launch System (SLS). The awardees will develop engineering
demonstrations and risk reduction concepts for SLS, a heavy-lift
rocket that will provide an entirely new capability for human
exploration beyond low Earth orbit.

"The initial SLS heavy-lift rocket begins with the proven hardware,
technology and capabilities we have today and will evolve over time
to a more capable launch vehicle through competitive opportunities,"
said William Gerstenmaier, associate administrator for the Human
Exploration Operations Mission Directorate at NASA Headquarters in
Washington. "While the SLS team is making swift progress on the
initial configuration and building a solid baseline, we also are
looking ahead to enhance and upgrade future configurations of the
heavy lift vehicle. We want to build a system that will be upgradable
and used for decades."

Designed to be flexible for launching spacecraft, including NASA's
Orion multipurpose vehicle, for crew and cargo missions SLS will
enable NASA to meet the president's goal of sending humans to an
asteroid by 2025 and to Mars in the 2030s. The initial SLS
configuration will use two five-segment solid rocket boosters similar
to the solid rocket boosters that helped power the space shuttle to
orbit. The evolved SLS vehicle will require an advanced booster with
significant increase in thrust from any existing U.S. liquid or solid
boosters.

Individual awards will vary with a total NASA investment of as much as
$200 million.

Proposals selected for contract negotiations a
-- "Subscale Composite Tank Set," Northrop Grumman Systems Corporation
Aerospace Systems
-- "Full-Scale Combustion Stability Demonstration," Aerojet General
Corp.
-- "F-1 Engine Risk Reduction Task," Dynetics Inc.
-- "Main Propulsion System Risk Reduction Task," Dynetics Inc.
-- "Structures Risk Reduction Task," Dynetics Inc.
-- "Integrated Booster Static Test," ATK Launch Systems Inc.

"We are building a new national capability to carry astronauts and
science experiments beyond Earth orbit to new destinations in space,"
said Todd May, SLS program manager at NASA's Marshall Space Flight
Center in Huntsville, Ala. "Our industry partners have presented a
variety of options for reducing risk while increasing performance and
affordability, and we're looking forward to seeing their innovative
ideas come to life."

The proposal selections are the first step in the NASA Research
Announcement procurement process. The second step, the formal
contract award, will follow after further negotiations between NASA
and selected organizations. All funded efforts will demonstrate and
examine advanced booster concepts and hardware demonstrations during
a 30-month period. This risk mitigation acquisition precedes the
follow-on design, development, testing and evaluation competition for
the SLS advanced booster currently planned for 2015.

All proposals will be valid for 12 months to allow for a later award
should the opportunity become available, unless withdrawn by the
offeror prior to award. Successful offerors to this NRA are not
guaranteed an award for any future advanced booster acquisition.

The first test flight of NASA's Space Launch System, which will
feature a configuration for a 77-ton (70-metric-ton) lift capacity,
is scheduled for 2017. As SLS evolves, a two-stage launch vehicle
configuration will provide a lift capability of 143 tons (130 metric
tons).

Marshall manages the SLS Program for the agency. For information about
NASA's Space Launch System, visit:

www.nasa.gov/sls

-end-


--
--
From the sofa of Brian Gaff -

Blind user, so no pictures please!


Ads
  #2  
Old July 14th 12, 05:58 PM posted to sci.space.shuttle
Bob Haller
external usenet poster
 
Posts: 3,197
Default Space launch system..

On Jul 14, 5:54*am, "Brian Gaff" wrote:
In the item below I see we seem to still be talking huge solids. I thought
the vibration problems associated with the chaotic burning etc, was a
problem?

If they are determined to use this technology, I just wondered how much is
need and how much is politics.
*In effect this is what is done on other *designs but perhaps rather larger
and a bigger proportion of the thrust, but it does seem counter intuitive to
me.
*Kind of like saying, oh dear we have this core stage but it will be too
slow of the pad so lets lift the tank with solids like wot we did on
Shuttle.

Brian
July 13, 2012

Trent J. Perrotto
Headquarters, Washington
202-358-0321


Kim Henry
Marshall Space Flight Center, Huntsville, Ala.
256-544-0034


RELEASE: 12-234

NASA SELECTS SPACE LAUNCH SYSTEM ADVANCED BOOSTER PROPOSALS

WASHINGTON -- NASA has selected six proposals to improve the
affordability, reliability and performance of an advanced booster for
the Space Launch System (SLS). The awardees will develop engineering
demonstrations and risk reduction concepts for SLS, a heavy-lift
rocket that will provide an entirely new capability for human
exploration beyond low Earth orbit.

"The initial SLS heavy-lift rocket begins with the proven hardware,
technology and capabilities we have today and will evolve over time
to a more capable launch vehicle through competitive opportunities,"
said William Gerstenmaier, associate administrator for the Human
Exploration Operations Mission Directorate at NASA Headquarters in
Washington. "While the SLS team is making swift progress on the
initial configuration and building a solid baseline, we also are
looking ahead to enhance and upgrade future configurations of the
heavy lift vehicle. We want to build a system that will be upgradable
and used for decades."

Designed to be flexible for launching spacecraft, including NASA's
Orion multipurpose vehicle, for crew and cargo missions SLS will
enable NASA to meet the president's goal of sending humans to an
asteroid by 2025 and to Mars in the 2030s. The initial SLS
configuration will use two five-segment solid rocket boosters similar
to the solid rocket boosters that helped power the space shuttle to
orbit. The evolved SLS vehicle will require an advanced booster with
significant increase in thrust from any existing U.S. liquid or solid
boosters.

Individual awards will vary with a total NASA investment of as much as
$200 million.

Proposals selected for contract negotiations a
-- "Subscale Composite Tank Set," Northrop Grumman Systems Corporation
Aerospace Systems
-- "Full-Scale Combustion Stability Demonstration," Aerojet General
Corp.
-- "F-1 Engine Risk Reduction Task," Dynetics Inc.
-- "Main Propulsion System Risk Reduction Task," Dynetics Inc.
-- "Structures Risk Reduction Task," Dynetics Inc.
-- "Integrated Booster Static Test," ATK Launch Systems Inc.

"We are building a new national capability to carry astronauts and
science experiments beyond Earth orbit to new destinations in space,"
said Todd May, SLS program manager at NASA's Marshall Space Flight
Center in Huntsville, Ala. "Our industry partners have presented a
variety of options for reducing risk while increasing performance and
affordability, and we're looking forward to seeing their innovative
ideas come to life."

The proposal selections are the first step in the NASA Research
Announcement procurement process. The second step, the formal
contract award, will follow after further negotiations between NASA
and selected organizations. All funded efforts will demonstrate and
examine advanced booster concepts and hardware demonstrations during
a 30-month period. This risk mitigation acquisition precedes the
follow-on design, development, testing and evaluation competition for
the SLS advanced booster currently planned for 2015.

All proposals will be valid for 12 months to allow for a later award
should the opportunity become available, unless withdrawn by the
offeror prior to award. Successful offerors to this NRA are not
guaranteed an award for any future advanced booster acquisition.

The first test flight of NASA's Space Launch System, which will
feature a configuration for a 77-ton (70-metric-ton) lift capacity,
is scheduled for 2017. As SLS evolves, a two-stage launch vehicle
configuration will provide a lift capability of 143 tons (130 metric
tons).

Marshall manages the SLS Program for the agency. For information about
NASA's Space Launch System, visit:

www.nasa.gov/sls

-end-

--
--
From the sofa of Brian Gaff -

Blind user, so no pictures please!


SLS is pure pork the piggie squeals with delight as the money gets
wasted..

musk has a heavy lift design nearly as large as the saturn 5

besides the vibration issues why duplicate something you can already
have?

unless your congress and need to buy some votes

  #4  
Old July 28th 12, 07:36 PM posted to sci.space.shuttle
Bob Haller
external usenet poster
 
Posts: 3,197
Default Space launch system..

On Jul 16, 10:11*am, Jeff Findley wrote:
In article a0d8b403-e4ac-410b-a09c-1625714a18d6
@x39g2000yqx.googlegroups.com, says...



SLS is pure pork the piggie squeals with delight as the money gets
wasted..


It all depends on your point of view.

musk has a heavy lift design nearly as large as the saturn 5


No, he does not.

besides the vibration issues why duplicate something you can already
have?


We don't have heavy lift at this point in time.

unless your congress and need to buy some votes


I see spelling and grammar errors galore.

Jeff
--
" Ares 1 is a prime example of the fact that NASA just can't get it
* up anymore... and when they can, it doesn't stay up long. "
* *- tinker


still you appear to understand my post

Space X is working on a heavy lifter roughly saturn equivalent

If their for Falcon speed is applied to SLS heavy lift NASA will still
be studying while falcon has flown and hopefully gone places
 




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