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SPACE LAUNCH SYSTEM
National Aeronautics and Space Administration
www.nasa.gov/sls
5 . . . 4 . . . 3 . . . 2 . . . 1 . . .
Exploration Class Capability
for Deep Space Exploration
Bob HawkinsDeputy Lead Engineer
SLS Integrated Avionics and
Software
https://ntrs.nasa.gov/search.jsp?R=20150021442 2018-06-26T07:14:56+00:00Z
www.nasa.gov/sls8750_JANNAF2015.2
www.nasa.gov/sls
SLS Driving Objectives
8750_JANNAF2015.3
Safe• Human-rated to provide safe and reliable systems
• Protecting the public, NASA workforce, high-value
equipment and property, and the environment from
potential harm
Affordable• Maximum use of common elements and existing
assets, infrastructure, and workforce
• Constrained budget environment
• Competitive opportunities for affordability on-ramps
Sustainable • Initial capability: 70 metric tons (t), 2017–2021
‒Serves as primary transportation for Orion and
human exploration missions
• Evolved capability: 105 t and 130 t, post-2021
‒Offers large volume for science missions and payloads
‒Reduces trip times to get science results faster
‒Minimizes risk of radiation exposure and orbital debris impacts
Designed for BEO Missions of National Importance
www.nasa.gov/sls
• SLS initial
configuration offers
Block 1 to LEO.
• Future
configurations offer
Block 1B and
Block 2 to LEO.
• More mass-to-orbit
means larger
payloads to variety
of destinations.
Medium/Intermediate Heavy Super Heavy
100’
200’
300’
Retired
Retired
ULA
Atlas V 551
SpaceX
Falcon 9
ULA
Delta IV H
NASA
Space Shuttle
NASA
Block 1
NASA
Block 2
NASA
Saturn V
0
20
40
60
80
100
120
140
160
Paylo
ad
Mass (
mT
)
Mass (mT)
SLS Mass-to-Orbit Comparison
0018 IAC_.4
www.nasa.gov/sls
Europa Trajectory Comparison
Launch(6/5/22)
JOI (5/23/24)
DSM(7/10/22)
VGA(5/14/22)
EGA-2(10/24/25)
EGA-1(10/24/23)
Jupiter’sOrbit
JOI (4/4/28)
Launch(11/21/21)
Atlas V 551: VEEGA SLS: Direct
Reduces Transit Time To Europa By Half
0018 IAC_.5
www.nasa.gov/sls
130 t
RS-25 Engines
105 t
Core StageCore Stage
70 t
SLS Block 2 CargoSLS Block 1B Crew SLS Block 1B Cargo
Interstage
Advanced
Boosters
Solid
Rocket
Boosters
Exploration
Upper Stage
105 t
SLS Block 1
Orion
Launch
Abort
System
Launch Vehicle
Stage Adapter
Interim Cryogenic
Propulsion Stage
Exploration
Upper Stage
Cargo FairingCargo Fairing
Interstage
Universal
Stage Adapter
Solid
Rocket
Boosters
Core Stage
SLS Evolution Overview
0018 IAC_.6
www.nasa.gov/sls
SLS Block 1 Key Design Features
SLS
Block 1
Launch Abort System
Launch Vehicle Stage Adapter
Core Stage
RS-25
Engines (4)
Service Module
Orion Stage Adapter
Solid Rocket
Boosters (2)
Interim Cryogenic
Propulsion Stage
Encapsulated Service Module Panels
Crew Module
Orion Multi-Purpose
Crew Vehicle
Spacecraft Adapter
8750_JANNAF2015.7
www.nasa.gov/sls
Five-Segment Solid Rocket Booster
Qualification Motor-1 (QM-1)
March 2015, Promontory, Utah
SRB Forward Skirt Load Test
May 2014, Promontory Utah
Booster Processing,
Promontory, Utah
SRB Aft Skirt Avionics Testing
September 2014
8750_JANNAF2015.8
www.nasa.gov/sls
5-Segment Booster Test Video
www.nasa.gov/sls
RS-25 Core Stage Engine
RS-25 Adaptation Test, Stennis Space Center, January – August 2015
RS-25 Controller
0013_IAC Briefing.10
8750_JANNAF2015.11
www.nasa.gov/sls
Core Stage Progress
Pegasus Barge Renovation Complete
LH2 Dome Assembly at Michoud, July 2015
0013_IAC Briefing.12
LH2 Structural Test Article (STA) Test Stand,
MSFC, August 2015
B-2 Test Stand at Stennis Space Center
www.nasa.gov/sls
SLS MAF/Stages Progress Video
8560 JANNAF
2014_B.Askins.13
www.nasa.gov/sls
Spacecraft/Payload Integration and Evolution
Orion/MSA Mated to Delta IV for EFT-1
November 2014
DCSS for EFT-1
KSC, June 2014
8750_JANNAF2015.14
www.nasa.gov/sls
Systems Engineering & Integration
Booster Separation Tests, LaRC
October 2014
Base Heating Tests CUBRC, Buffalo, New York
January 2015
SMAT Testing, MSFC August 2014
Core Stage
Engine TVC
Actuator Testing
Redstone Test
Center
March 2015
8750_JANNAF2015.15
www.nasa.gov/sls
SLS Avionics Progress
8750_JANNAF2015.16
www.nasa.gov/sls
Where is SLS Avionics Located?
8750_JANNAF2015.17www.nasa.gov/sls
SLS
Block 1
Launch Vehicle Stage Adapter
(Two Cameras for ICPS Separation)
Core Stage Avionics
(Flight Computers, Command and Telemetry Controller, Inertial
Navigation Equipment, RF Transmitter)
Booster
Avionics Interim Cryogenic
Propulsion Stage
Avionics
Core Stage Avionics
(Command and Telemetry Controller, Power Distribution, Data
Acquisition, Camera Equipment, Liquid Level Sensors, Rate
Gyro, RF Transmitter)
Core Stage Avionics
(Main Propulsion System Valve Control, Core Stage Thrust
Vector Control, Rate Gyro)
Core Stage Engine Controllers
Booster
Avionics
www.nasa.gov/sls
SLS Block I Avionics Architecture
8750_JANNAF2015.18www.nasa.gov/sls
www.nasa.gov/sls
SLS Block I Software Providers
8750_JANNAF2015.19www.nasa.gov/sls
System: Flight Computer (FC)
Type: Byzantine Fault Resilient
3 String Voting Architecture
Developer: MSFC In-House
Category: Flight Critical
Function: Primary SLS Vehicle Flight
Control System
System: Redundant Inertial Navigation Unit (RINU)
Type: Internally Self-Checking Architecture
Developer: Stages Subcontractor (Honeywell)
Category: Flight Critical
Function: Provide Navigation and Flight Control
inputs to FCs
System: Rate Gyro Assembly
Type: Internally Self-Checking Architecture
Developer: Stages Subcontractor (Honeywell)
Category: Flight Critical
Function: Provide vehicle rate inputs to FCs
System: Core Stage Engine Controller (CSEC)
Type: Self-Checking Pair of Pairs (Prime/Backup)
Developer: Engines Contractor - Aerojet Rocketdyne (AR)
Category: Flight Critical
Function: Control/Monitor of RS-25 Engine
System: ULA Common Avionics
Based
Developer: ULA
Function: Primary ICPS Flight
Control and Health
Monitoring
www.nasa.gov/sls
SLS Block I Avionics and SW Test Labs
8750_JANNAF2015.20
SDF-3
(FC FSW)
SITF-D (Stages)/
SIL(Level 2)
SITF-Q
(Stages)
SDF-1&2
(FC FSW)
Control
RoomBooster
SITF-D/SIL
SITF-Q HIL
www.nasa.gov/sls
Path to EM-1 (First Launch)
2011 2012 2013 2014 2015 2016 2017 2018
ConceptStudies
Design & DevelopmentFinal Design& Fabrication
System Assembly, Integration and Test, Launch Checkout
✔ ✔✔ ✔Mission
Concept Review
Critical
Design ReviewPreliminary
Design Review
Design
Certification
Review
Launch
AvailabilitySystem
Requirements
Review/System
Definition Review
Key
Decision
Point-C
Booster
Development
Test
Booster
Assembly
at KSC
Booster
Qualification
Tests
RS-25
Flight
Testing
Begins
Core
Stage
Assembly
Complete
Core Stage
Production
Begins
Production
of Adapter
for Orion
Flight Test
SLS
Launch
Readiness
SLS
Design
Chosen
RS-25
Development
Testing
Begins
Engines
Delivered
to
Inventory
Manufacturing
Tooling
Installation
Core
Stage
Structural
Testing
Boosters
Fabrication
Complete
Core
Stage
Test-Firing
✔
Integrated
Upper
Stage
Structural
Testing
Upper
Stage
Production
Begins
0018 IAC_.21
With design and development work
mostly complete, the SLS Program is
now building and testing components
of the world’s most powerful rocket to
be ready for launch in 2018. Each of
these steps advance NASA on the
Journey to Mars.
www.nasa.gov/sls
Summary
• SLS provides capability for human exploration missions.
– Block 1 configuration enables initial flight tests.
– Evolved configurations enable missions including humans to Mars.
• SLS offers unrivaled benefits for a variety of missions.
– Block 1 provides greater mass lift than any contemporary launch
vehicle; Block 2 offers greater lift than any launch vehicle, ever.
– With 8.4m and 10m fairings, SLS will over greater volume lift
capability than any other vehicle.
– Updated Mission Planner’s Guide provides capabilities information.
• SLS is currently on schedule for first launch.
– Critical design review completed in July 2015;
SLS is now in implementation phase.
– Manufacture and testing are currently underway.
– Hardware now exists representing all SLS elements.
0018 IAC_.22
SLS will be the Biggest and Most Capable Rocket ever Built
8750_JANNAF2015.23
www.nasa.gov/sls
Questions?
8750_JANNAF2015.24