National Aeronautics and Space Administration
www.nasa.gov
NASA’s Space Launch System:Exploration Beyond Earth’s Orbit
May 2012
Todd A. May, Program ManagerGarry M. Lyles, Chief EngineerJoan (Jody) A. Singer, Deputy Program ManagerDavid E. Beaman, Spacecraft and Payload Integration ManagerStephen D. Creech, Strategic Development Manager
https://ntrs.nasa.gov/search.jsp?R=20120014548 2020-05-20T08:21:40+00:00Z
Todd May, Program ManagerNASA’s Vision and Mission
8200_T.May_GLEX.2www.nasa.gov/sls
“Extend and sustain human activities across the solar system.”NASA 2011 Strategic Plan
SLS Launches in 2017
8200_T.May_GLEX.3www.nasa.gov/sls
Earth
International Space Station
Near-Earth Asteroid
Mars
Lagrange Points
Moon
Saturn
Jupiter
The Future of Exploration
8200_T.May_GLEX.4www.nasa.gov/sls
My desire is to work more closely with the human spaceflight program so we can take advantage of synergy…. We think of the SLS as the human spaceflight program, but it could be hugely enabling for science.
— John Grunsfeld, Associate Administrator NASA Science Mission Directorate
Nature, Jan 19, 2012
Initial Exploration Missions (EM)EM-1 in 2017
• Un-crewed circumlunar flight – free return trajectory• Mission duration ~7 days• Demonstrate integrated spacecraft systems
performance prior to crewed flight• Demonstrate high speed entry (~11 km/s) and
Thermal Protection System prior to crewed flight
8200_T.May_GLEX.5www.nasa.gov/sls
EM-2 no later than 2021• Crewed lunar orbit mission• Mission duration 10–14 days
NASA’s Space Launch SystemVital to NASA’s exploration strategy and the Nation’s space agenda.
Key tenets: safety, affordability, and sustainability
System Requirements Review/System Definition Review in progress
Partnerships with NASA Exploration Systems Development (Headquarters), Orion and Ground Operations Programs, and Centers
Prime contractors on board, engaging the U.S. aerospace workforce and specialized infrastructure
Turning plans into progress: Design and development work moving forward today, to deliver an unsurpassed capability that launches in 2017
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On Track for First Flight in 2017
Garry Lyles, Chief EngineerThe SLS Design
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SLS Architecture Block Upgrade Approach
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Payload Fairings
Launch Abort System
SolidRocket
Boosters
Block 170 t
321 ft.
Block 2130 t
384 ft.
Upper StagewithJ-2X
Engines
AdvancedBoosters
OrionInterim Cryogenic
Propulsion Stage (ICPS)
Core StageCore Stage
Block 1A105 t
314 ft.
27.5 ft. (8.4 m)
Starting with Available Assets and Evolving the Design
27.5 ft. (8.4 m)
RS-25 Core Stage Engines(Space Shuttle Main Engines)
SLS 70 Metric Tons: First Flight 2017
8200_T.May_GLEX.9www.nasa.gov/sls
Launch Abort System
70 t318 ft.
Orion Multi-Purpose Crew Vehicle (MPCV)
INITIAL CAPABILITY, 2017–21
Core Stage/Avionics(Boeing)
Core Stage Engines (RS-25)(PWR)
5-Segment Solid Rocket Booster (SRB)
(ATK)
Interim Cryogenic Propulsion Stage (ICPS)
• MPCV Stage Adapter• Launch Vehicle Stage Adapter
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SLS will launch from Kennedy Space Center in 2017
Ascent Mission Profile: SLS/Orion
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Core Stage Engine CutoffTime (sec) 475.2Maximum Acceleration
Launch
Maximum Dynamic PressureTime (sec) 76.4Altitude (ft) 48,189Mach 1.84
SRB SeparationTime (sec) 128.4Altitude (ft) 141,945Mach No. 4.33
Maximum Boost Stage Axial AccelerationTime (sec) 110.4Mach No. 3.9
Liftoff + 0.6 secTime (sec) 0.6
Payload SeparationTime (sec) MECO + 30 sec
(Not To Scale)At IgnitionTime (sec) 0.0Weight (lb) 5,795,338
LAS JettisonTime (sec) 158.4Altitude (ft) 193,530Mach No. 4.9
Core Stage Pacific
Splashdown5579 sec(1.5 hrs)
Tower Clear & Initiate
Roll/Pitch Maneuver
9 sec
Roll Maneuver places astronauts in heads-down position
Gravity Turn minimizes aero loads on vehicle and uses Earth G to turn vehicle horizontal
SRB Atlantic Splashdown
331 sec(5.5 min)
SLS: Being Built Today
8200_T.May_GLEX.12www.nasa.gov/sls
Meeting with Space Campers at U.S. Space & Rocket Center, Huntsville,
AL, Feb 2012.
RS-25 Core Stage Engine in the KSC Engine Processing Facility,
2011.
Installing the J-2X powerpack in test stand at SSC.
Stages Industry Day at Michoud Assembly Facility, New Orleans,
Nov 2011.
First ring forging prepared for Orion Stage Adapter, Cudahy, WI, April 2012.
Solid Rocket Booster development motor test, Promontory, Utah, Sep 2011.
KSC is preparing Launch Complex 39B for SLS/Orion operations, 2012.
J-2X Upper Stage Engine powerpack test, Stennis Space Center (SSC), MS, Feb 2012.
Jody Singer, Deputy Program ManagerHardware Progress
8200_T.May_GLEX.13www.nasa.gov/sls
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RS-25 Engines received atStennis Space CenterApril 2012
100% Success
Rate
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5-Segment Solid Rocket Booster
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Development Motor Test 3ATK Promontory, Utah Test Site, September 8, 2011
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Avionics and controls for SLS booster readying for Flight Control Test 1 atATK’s test facility in Promontory, Utah, March 28,2012
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J-2X Upper Stage Enginereadying for testing at Stennis Space CenterMarch 2012
8200_T.May_GLEX.19www.nasa.gov/sls
First J-2X development engine on the A-2 Test Standat Stennis Space CenterApril 20, 2012
Marshall Space Flight Center’s Michoud Assembly Facility
One-of-a-Kind Infrastructure Asset8200_T.May_GLEX.20www.nasa.gov/sls
Stages and Avionics
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Core Stage
Upper Stage
SLS Commonalities
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70 ton Payload(Block 1)
130 ton Payload (Block 2)
Core Stage work directly appliesto Upper Stage:• Same diameter (27.5 ft.) and basic design• Manufacturing facilities, tooling, materials, and
processes/practices• Workforce• Supply chain/industry base• Transportation logistics• Ground systems/launch infrastructure• Propellants
Core Stage
Payload Interfaces:• Mechanical• Avionics• Software
RS-25 Core Stage Engines
David Beaman, Spacecraft and Payload Integration ManagerAdapters and Fairings
8200_T.May_GLEX.23www.nasa.gov/sls
Exploration Flight Test-1 Mission Overview
8200_T.May_GLEX.24
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Orion MPCV Stage Adapter
www.nasa.gov/sls 8200_T.May_GLEX.26
First ring forging preparation by ATI/Ladish Forging, Cudahy, Wisconsin, April 2012
Crew application
Cargo application
Orion
Payload Adapter30 ft. (10 m)
27.5 ft. (8.4 m)
Payload FairingsLaunch Abort System
Interim Cryogenic Propulsion Stage
• MPCV Stage Adapter• Launch Vehicle Stage
Adapter
SolidRocket
Boosters
Upper StagewithJ-2X
Engine
Liquidor
SolidRocket
Boosters
Orion
Core Stage
RS-25(Space Shuttle Main Engines)
INITIAL CAPABILITY, 2017–21 EVOLVED CAPABILITY, Post-2021
8200_T.May_GLEX.27www.nasa.gov/sls
Steve Creech, Strategic Development ManagerMission Capabilities
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A National Asset for Stakeholders and Partners
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SLS —Going Beyond Earth’s Orbit
Block 1 ICPS
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Payl
oad
Syst
em M
ass
(mt)
C3 (km2/s2)
30.0
25.0
20.0
15.0
10.0
5.0
0.0-20 0 20 40 60 80 100 120 140 160 180
Sola
r Pro
be
Jupi
ter/E
urop
a
Mar
s
Luna
r
Human Space Flight
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Human Mission to Mars
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Safe, Affordable, Sustainable8200_T.May_GLEX.33
SLS Performance = Affordability
Less Risk Less ExpensiveMission Operations
Increased Design Simplicity
Increased Mission
Reliability and Confidence
Increased lift capacity High energy orbit Volume and mass capability
Volume and mass capability
Increased payloadmargin
Shorter trip times Increased design simplicity
Fewer deployments and critical operations
www.nasa.gov/sls
The Ice of Europa
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Enceladus Orbiter
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For More Info: www.nasa.gov/sls
www.nasa.gov/sls 8200_T.May_GLEX.36Building a Platform for Global Space Exploration
Somewhere, something incredibleis waiting to be known.— Carl Sagan
www.nasa.gov/sls 8155_Marshall Association.37
