Presentation by Clinton Dorris (Deputy Manager, Altair Project Office, NASA) at the Von Braun Memorial Symposium in Huntsville, Alabama, 21 October 2008.
<a href="http://astronautical.org/vonbraun/vonbraun-2008/session2">http://astronautical.org/vonbraun/vonbraun-2008/session2</a>
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Altair: Constellation Returns Humans to the Moon
1. Altair Cover Page
Altair
Constellation Returns Humans
to the Moon
Clinton Dorris
Deputy Manager
Altair Project Office
Constellation
2. EXPLORATION ROADMAP
05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Lunar Capability
Initial Capability Lunar Outpost Buildup
Lunar Outpost Buildup
Exploration and Science Lunar Robotics Missions
Exploration and Science Lunar Robotics Missions
Research and Technology Development on ISS for Risk
and Technology Development on ISS for Risk
Reduction
Reduction
Commercial Orbital Transportation Services for ISS
Commercial Orbital Transportation Services for ISS
Space Shuttle Operations
Space Shuttle Operations
Ares II and Orion Development
Ares and Orion Development
Operations Capability Development
Operations Capability Development
(EVA Systems, Ground Operations, Mission Operations)
(EVA Systems, Ground Operations, Mission Operations)
Orion and Ares II Production and Operation
Orion and Ares Production and Operation
Altair Lunar Lander Development
Altair Lunar Lander Development
Ares V and Earth Departure Stage
Ares V and Earth Departure Stage
Surface Systems Development
Surface Systems Development
3. ALTAIR: BUILDING ON APOLLO’S FOUNDATION
Constellation Altair
10 Lunar Lander
Apollo Lunar Module
Overall Vehicle Height in Meters
5
Height: 7 m Height: 10 m
Diameter: 9 m Diameter: 15 m
Gross Liftoff Mass: 15 Mt Gross Liftoff Mass: 54 Mt Cargo
Gross Liftoff Mass: 45 Mt Crewed
4. ALTAIR: LUNAR LANDER
4 crew to and from the surface
Global access capability
Anytime return to Earth
Capability to land 14 to 17
metric tons of cargo
Airlock for surface activities
Descent Stage
-Liquid oxygen/liquid hydrogen
propulsion
Ascent Stage
-Hypergolic propellants or
Liquid oxygen/methane
5. ALTAIR: DESIGN WORK IN PROGRESS
“Minimum Functional” design “Safety Enhanced” design “Reliability Enhanced”
8.4 m Ares V shroud, 45 mt control mass 10 m Ares V shroud design
In Work
Altair Design Cycle:
LLPO Design Cycle: LDAC-1
LDAC-1 LDAC-1
LDAC-1 LDAC-2
LDAC-2 LDAC-3
Altair Design Analysis Cycles (LDAC)
LDAC-1 – Minimum Functional Vehicle
-Habitation module/airlock embedded in mid-bay within descent module structure
-Designed for 8.4 meter Ares V shroud (7.5 meter diameter dynamic envelope)
LDAC-1 – Minimum Functional Vehicle with optimized descent module structure
-Ascent module and airlock on top deck of “flatbed” lander
LDAC-2 – Safety/Reliability (crew) Upgraded Vehicle
-Designed for 10 meter Ares V shroud (8.8 meter diameter dynamic envelope)
LDAC-3 – Safety/Reliability (mission) Upgraded Vehicle (currently in progress)
-Global access capability
6. ALTAIR: VEHICLE ARCHITECTURE
Three Primary Elements Descent Module
• Provides propulsion for TCMs, LOI, and powered
descent
Airlock
• Provides power during lunar orbit, descent, and
Ascent Module surface operations
• Serves as platform for lunar landing and liftoff of
ascent module
• Designed to fit within 10 meter shroud
• Liquid oxygen / liquid hydrogen propulsion
• Fuel cell powered
Ascent Module
• Provides habitable volume for four during descent,
surface, and ascent operations
• Contains cockpit and majority of avionics
• Provides propulsion for ascent from lunar
surface after surface mission (hyper or
LOX/Meth)
Descent • Battery Powered
Module
Airlock
• Accommodates two crew per ingress / egress
• Connected to ascent module via short tunnel
• Remains with descent module on lunar surface
after ascent module liftoff
8. ALTAIR: WORKFORCE
Prime Contractors
Andrews Space Inc., Seattle, WA
Boeing, Houston, TX/Seattle, WA
Lockheed Martin, Denver, CO
Northrup Grumman, El Segundo, CA/Bethpage, NY
Odyssey Space Research, Houston, TX
Goddard Space Flight Center
-Avionics
-C & DH lead
Glenn Research Center
Ames Research Center -Power subsystem lead
-Simulations -Ascent propulsion
-Data management Langley Research Center
Dryden Flight Research Center -Structures lead
-Trainer development
-Flight tests Johnson Space Center
-Project management Marshall Space Flight Center
JPL (Jet Propulsion Laboratory) -Ascent Module -Descent Stage lead
-Guidance, Navigation & Control -Guidance, Navigation & Control -Propulsion System lead
-Subsystem integration -Environmental control and life support -Additional subsystem support
-Additional subsystem support -Thermal
Kennedy Space Center
-Ground processing
-Final assembly and checkout
Subcontractors
Ball Aerospace Technologies, Boulder, CO Harris Corporation, Melbourne, FL
Draper Laboratory, Cambridge, MA Honeywell Aerospace, Phoenix, AZ
Pratt & Whitney Rocketdyne, W. Palm Beach, FL Wyle Corporation, Houston, TX
Hamilton Sunstrand, Windsor Locks, CT MDA Federal, Houston, TX
Aerojet, Sacramento, CA Microsat Systems, Littleton, CO
United Space Alliance, Houston, TX Space Exploration Technologies, Hawthorne, CA
Orbital Technology, Birmingham, AL
9. LUNAR COMPONENTS OF CONSTELLATION
Earth Departure
Stage Orion-Crew
Exploration Vehicle
Ares I – Crew
Launch Vehicle
Altair- Lunar
Lander
Ares V – Heavy
Launch Vehicle
10. MISSION:AND ARES V CREW WITH CARGO
ALTAIR LUNAR SORTIE
Orion and the crew are launched on an Ares I rocket to low Earth orbit
Altair and the Earth Departure Stage are deployed on an Ares V rocket
to low Earth orbit
The two vehicles rendezvous and dock
The Earth Departure Stage will provide the trans-lunar injection burn
needed to leave low Earth orbit
11. ALTAIR AND ORION: JOURNEY TO THE MOON
Altair and Orion make the journey to
the moon after the Earth Departure
Stage is discarded
12. ALTAIR LANDS ON THE
LUNAR SURFACE
Once in lunar orbit, the crew
transfers to Altair and performs a
powered descent to the lunar
surface.
13. ALTAIR: ASCENT STAGE
After 7 days on the lunar
surface, the crew returns to
Orion in the ascent module
14. ASCENT STAGE AND ORION
The ascent module docks with Orion
and the crew transfers back to Orion
Orion returns the crew and science payload to Earth
15. ALTAIR: RETURNING HUMANS TO THE MOON
The last human walked on the lunar surface on December
14, 1972 – Apollo sent two astronauts to the lunar
surface for only three days.
The next generation of lunar exploration missions will have
larger landing party of four astronauts, who will stay for
extended periods on the lunar surface.
Initially, Altair will serve as the surface habitat for a new
generation of space explorers who will, over time, build a
lunar outpost that will allow for even longer stays.
The Moon will function as a testbed to prepare humans for
further exploration to include Mars.
Notas del editor
Welcome audience.Introduce yourself.Tell audience what you do at NASA.
This chart shows the roadmap for NASA ExplorationAres I and Orion development get into full swing in 2008Launch pad abort tests of emergency escape system start in 2008 and continue through 2011Abort tests will occur at White Sands Missile Range in New MexicoFirst test of full launch stack in 2009 at Kennedy Space Center in FloridaMissions will launch from Kennedy’s Launch Pad 39B, which will be turned over to Constellation after the shuttle’s Hubble Space Telescope missionBased on current budget projections, NASA has high confidence the first crewed Orion mission will launch no later than 2015Orion 1 will be first use of Ares I upper stage, but will not have a human crewOrion 2 will be first crewed mission and will deliver first low-impact docking adapter to space stationOrion 3 will be crewed and deliver second docking adapterOrion 4 will be first space station crew rotation mission
Altair will use some of the concepts and technologies used by it’s predecessor, the Apollo Lunar Module.Clinton: I put actual comparisons in your notes under the Altair Architecture slide – you may want to put them here instead.
Lunar lander project taking a lean approach, using a small team of engineers to develop conceptual designsLander team is getting perspective of those from Apollo days who have “been there, done that”Apollo designed to support landings only in narrow band around moon’s equatorBut Constellation lander will support landings almost anywhere on the moon’s surfaceLander team just completed first design cycle.Biggest challenge is weight, since every pound delivered to the lunar surface is dependent upon resources launched for all stages of the mission Plan is to begin building outpost as soon as possible
Clinton, check verbage here for accuracyThe Altair Project, still in design and development mode is establishing performance metrics, exploring the full range of implementation options and defining an affordable project concept to meet requirements specified in Constellation’s Program Plan.
Altair will be similar in concept to its Apollo predecessors with some notable differences. Like Apollo, Altair will have two stages, the descent and ascent modules. Altair will be carrying a crew of 4 to and from the lunar surface where the Apollo version carried only 2. Altair in cargo mode will have the capability to land 20 metric tons of dedicated cargo which is greater than the total mass of the Apollo Lunar Module.When carrying a crew, Altair will be capable of supporting a crew on the surface for up to 7 days with a payload capacity of 2 metric tonsAltair will be able to access any point on the lunar surface including the Polar RegionsThe Orion spacecraft will orbit the Moon unmanned while the astronauts are on the lunar surfaceAltair has a much larger cabin and an airlock similar to the ISS to keep the interior of the spacecraft much cleaner and add mission flexibility
Different configurations of Altair are being developed for different missions. The Sortie Variant allows for both crew and cargo to land on the lunar surface for exploration up to 7 days. Note the sortie variant contains both the airlock and ascent stage.The Outpost variant would be used once a lunar outpost has been established to deliver both crew and cargo.The Cargo Variant would be used to deliver cargo only to the lunar surface (note the absence of the ascent stage)
Altair’s workforce will add to Constellation’s economic impact across the country, both at NASA centers and in private industry
Constellation Program includes:Two launch vehicles (Ares I and Ares V)Two human spacecraft (Orion and Altair)Additional surface support equipment for exploration, resource utilization and scientific researchConstellation vehicles are being designed initially for missions to moon.Ares V cargo launcher will be big enough to support future missions to Mars.Ares I and Orion are being designed to transport crews the first and last 100 miles – to and from low-Earth orbit.
Clinton – feel free to change or not use these notes:These are exciting times for space science and exploration – it’s been almost 36 years since humans last set foot on our Earth’s Moon – Constellation will take us back – Altair will be the vehicle that sets down on the lunar surface with a crew of humans and eventually with the cargo to establish a lunar outpost. What the Altair Project discovers in traveling to and from the Moon will be used to design and develop the next lander which will set down on Mars. Gene Cernan spoke these last words as the last human standing on the moon’s surface: “As we leave the Moon at Taurus-Littrow, we leave as we came, and God willing, as we shall return, with peace and hope for all mankind. As I take these last steps from the surface for some time to come, I’d just like to record that America’s challenge of today has forged man’s destiny of tomorrow.”Constellation is forging ahead with that destiny!