Evolved Expendable Launch Vehicle (EELV) is an expendable launch system program of the United States Air Force (USAF), intended to assure access to space for Department of Defense and other United States government payloads. The program, which began in the 1990s with the goal of making government space launches more affordable and reliable, resulted in the development of two launch systems, Delta IV and Atlas V. These two launch systems are the primary methods for launching U.S. military satellites.
The USAF plans to use the EELV family of launch vehicles until at least 2030. Follow-on technologies are being considered, one of which was originally the Reusable Booster System until its discontinuation.
Evolved Expendable Launch Vehicle | Wikipedia audio article
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/National_Security_Space_Launch
00:01:17 1 History
00:01:26 1.1 Initial program goals
00:03:59 1.2 1990s-2000s
00:05:32 1.3 2010s
00:07:04 1.4 2018 to 2020s
00:07:58 2 Launch vehicles
00:08:34 2.1 Active
00:08:43 2.1.1 Atlas V - certified
00:09:30 2.1.2 Delta IV Heavy - certified
00:09:52 2.1.3 Falcon 9 - certified
00:10:03 2.1.4 Falcon Heavy - certified
00:11:16 2.2 Next generation vehicle competition
00:11:27 2.2.1 New Glenn
00:11:58 2.2.2 OmegA
00:13:27 2.2.3 Vulcan
00:14:36 3 References
00:15:01 4 External links
00:15:25 Vulcan
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learnin...
Animation of mission concept for EELV Secondary Payload Adapter ring deployment of cubesats. (NASA/MSFC) (Lightwave, 2018)
published: 02 Jun 2024
Spies, Allies, and Enterprise - the Strange Story of ULA
How did two traditional competitors - Lockheed Martin and Boeing - end up as partners in the United Launch Alliance?
The tale is one of intrigue.
published: 22 Nov 2021
Confusing Rocket Engine Choices...
What do some rockets use engines that are different than the ones we would expect them to use? We'll look at the Delta IV and the ULA Vulcan.
How to choose a first stage fuel for your rocket:
https://www.youtube.com/watch?v=DiH5Hg21W8E
published: 05 Nov 2021
Expendable launch vehicle - Astronaut
published: 27 Jan 2013
Rocket Lab Confirms Bid for Pentagon Launch Contracts with New Medium-Lift Rocket Neutron #RKLB
Rocket Lab is set to challenge SpaceX in the military space launch arena, confirming its intent to bid for Pentagon contracts with its Neutron rocket.
“We’re excited to bid this time round for NSSL (National Security Space Launch) Lane 1, and we think Neutron is a really good vehicle for it,” Rocket Lab CEO Peter Beck told SpaceNews.
The Space Force requires the next round of Lane 1 bidders to be ready for a first launch by December 2025, a timeline Beck says Neutron can meet.
“We think we can get there, but ultimately the government will decide that,” he said.
published: 05 Nov 2024
Evolved Expandable Launch Vehicle Complex
published: 12 Feb 2018
OASD: Air Force Press Conference on Evolved Expendable Launc
Peter B. Teets, acting secretary of the U.S. Air Force; Steve Shaw, the Air Force top official for contractor debarment and suspensions; and U.S. Air Force Maj. Gen. Craig R. Cooning, director, Space Acquisition, Office of the Under Secretary of the Air Force, give a press conference regarding the Evolved Expendable Launch Vehicle Program at the Pentagon in Arlington, Va., March 4, 2005. The footage is from the collection held by the U.S. Department of Defense Office of the Assistant Secretary of Defense (Public Affairs). (DoD video/Released) [75616301_xxx_fc.mov]
published: 12 Sep 2016
New $5.6B Space Launch Program Opens Doors for Rocket Lab, Other Entrants #RKLB #RocketLab
The new request for proposals is part of an "on-ramp" strategy in the National Security Space Launch Phase 3 Lane 1 program, inviting new companies to compete with SpaceX, Blue Origin, and United Launch Alliance.
Structured as an Indefinite Delivery, Indefinite Quantity contract, it's valued at $5.6 billion over five years and will conduct at least 30 missions from 2025 to 2029, potentially extending through 2034.
Prospective entrants must demonstrate launch readiness by December 2025, with proposals due December 13 and awards by Spring 2025.
Among the potential new entrants, Rocket Lab stands out with its Neutron launch vehicle, anticipated to be ready for its first flight by mid-2025.
The company recently achieved a milestone by completing tests on its Neutron engine.
#RKLBStock
published: 31 Oct 2024
Chips and Rockets - Starting a launch company is a bad decision
People tend to focus on the technical difficulty of building an orbital rocket, but even if you achieve that you need to be able to sell launches to customers to be successful.
@Eager_Space on Twitter
Triabolical_ on Reddit
https://www.patreon.com/eagernetwork
https://www.facebook.com/Eager-Space-103843052204122
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/National_Security_Space_Launch
00:01:17 1 History
00:01:26 1.1 Initial pr...
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/National_Security_Space_Launch
00:01:17 1 History
00:01:26 1.1 Initial program goals
00:03:59 1.2 1990s-2000s
00:05:32 1.3 2010s
00:07:04 1.4 2018 to 2020s
00:07:58 2 Launch vehicles
00:08:34 2.1 Active
00:08:43 2.1.1 Atlas V - certified
00:09:30 2.1.2 Delta IV Heavy - certified
00:09:52 2.1.3 Falcon 9 - certified
00:10:03 2.1.4 Falcon Heavy - certified
00:11:16 2.2 Next generation vehicle competition
00:11:27 2.2.1 New Glenn
00:11:58 2.2.2 OmegA
00:13:27 2.2.3 Vulcan
00:14:36 3 References
00:15:01 4 External links
00:15:25 Vulcan
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.882228574270591
Voice name: en-GB-Wavenet-C
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
National Security Space Launch (NSSL) is a program of the United States Air Force (USAF) intended to assure access to space for DoD and other US government payloads.
Started in 1994 as the Evolved Expendable Launch Vehicle (EELV) launch system program, the initial program goal was to make government space launches more affordable and reliable, leading to the development of the Delta IV and Atlas V EELV families. As of 2019, these launch vehicles are the primary methods for launching U.S. military satellites, along with the Falcon 9 developed under NASA's CRS program.On 1 March 2019, the program changed its name from EELV to National Security Space Launch (NSSL) to better reflect the changing nature of launch contracting, including the retirement of STS and the inclusion of reusable vehicles. The NSSL program launches the nation's most valuable military satellites; contracts to launch lower value payloads, such as those of the Space Test Program, are awarded using different methodologies.
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/National_Security_Space_Launch
00:01:17 1 History
00:01:26 1.1 Initial program goals
00:03:59 1.2 1990s-2000s
00:05:32 1.3 2010s
00:07:04 1.4 2018 to 2020s
00:07:58 2 Launch vehicles
00:08:34 2.1 Active
00:08:43 2.1.1 Atlas V - certified
00:09:30 2.1.2 Delta IV Heavy - certified
00:09:52 2.1.3 Falcon 9 - certified
00:10:03 2.1.4 Falcon Heavy - certified
00:11:16 2.2 Next generation vehicle competition
00:11:27 2.2.1 New Glenn
00:11:58 2.2.2 OmegA
00:13:27 2.2.3 Vulcan
00:14:36 3 References
00:15:01 4 External links
00:15:25 Vulcan
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.882228574270591
Voice name: en-GB-Wavenet-C
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
National Security Space Launch (NSSL) is a program of the United States Air Force (USAF) intended to assure access to space for DoD and other US government payloads.
Started in 1994 as the Evolved Expendable Launch Vehicle (EELV) launch system program, the initial program goal was to make government space launches more affordable and reliable, leading to the development of the Delta IV and Atlas V EELV families. As of 2019, these launch vehicles are the primary methods for launching U.S. military satellites, along with the Falcon 9 developed under NASA's CRS program.On 1 March 2019, the program changed its name from EELV to National Security Space Launch (NSSL) to better reflect the changing nature of launch contracting, including the retirement of STS and the inclusion of reusable vehicles. The NSSL program launches the nation's most valuable military satellites; contracts to launch lower value payloads, such as those of the Space Test Program, are awarded using different methodologies.
What do some rockets use engines that are different than the ones we would expect them to use? We'll look at the Delta IV and the ULA Vulcan.
How to choose a f...
What do some rockets use engines that are different than the ones we would expect them to use? We'll look at the Delta IV and the ULA Vulcan.
How to choose a first stage fuel for your rocket:
https://www.youtube.com/watch?v=DiH5Hg21W8E
What do some rockets use engines that are different than the ones we would expect them to use? We'll look at the Delta IV and the ULA Vulcan.
How to choose a first stage fuel for your rocket:
https://www.youtube.com/watch?v=DiH5Hg21W8E
Rocket Lab is set to challenge SpaceX in the military space launch arena, confirming its intent to bid for Pentagon contracts with its Neutron rocket.
“We’re ...
Rocket Lab is set to challenge SpaceX in the military space launch arena, confirming its intent to bid for Pentagon contracts with its Neutron rocket.
“We’re excited to bid this time round for NSSL (National Security Space Launch) Lane 1, and we think Neutron is a really good vehicle for it,” Rocket Lab CEO Peter Beck told SpaceNews.
The Space Force requires the next round of Lane 1 bidders to be ready for a first launch by December 2025, a timeline Beck says Neutron can meet.
“We think we can get there, but ultimately the government will decide that,” he said.
Rocket Lab is set to challenge SpaceX in the military space launch arena, confirming its intent to bid for Pentagon contracts with its Neutron rocket.
“We’re excited to bid this time round for NSSL (National Security Space Launch) Lane 1, and we think Neutron is a really good vehicle for it,” Rocket Lab CEO Peter Beck told SpaceNews.
The Space Force requires the next round of Lane 1 bidders to be ready for a first launch by December 2025, a timeline Beck says Neutron can meet.
“We think we can get there, but ultimately the government will decide that,” he said.
Peter B. Teets, acting secretary of the U.S. Air Force; Steve Shaw, the Air Force top official for contractor debarment and suspensions; and U.S. Air Force Maj....
Peter B. Teets, acting secretary of the U.S. Air Force; Steve Shaw, the Air Force top official for contractor debarment and suspensions; and U.S. Air Force Maj. Gen. Craig R. Cooning, director, Space Acquisition, Office of the Under Secretary of the Air Force, give a press conference regarding the Evolved Expendable Launch Vehicle Program at the Pentagon in Arlington, Va., March 4, 2005. The footage is from the collection held by the U.S. Department of Defense Office of the Assistant Secretary of Defense (Public Affairs). (DoD video/Released) [75616301_xxx_fc.mov]
Peter B. Teets, acting secretary of the U.S. Air Force; Steve Shaw, the Air Force top official for contractor debarment and suspensions; and U.S. Air Force Maj. Gen. Craig R. Cooning, director, Space Acquisition, Office of the Under Secretary of the Air Force, give a press conference regarding the Evolved Expendable Launch Vehicle Program at the Pentagon in Arlington, Va., March 4, 2005. The footage is from the collection held by the U.S. Department of Defense Office of the Assistant Secretary of Defense (Public Affairs). (DoD video/Released) [75616301_xxx_fc.mov]
The new request for proposals is part of an "on-ramp" strategy in the National Security Space Launch Phase 3 Lane 1 program, inviting new companies to compete w...
The new request for proposals is part of an "on-ramp" strategy in the National Security Space Launch Phase 3 Lane 1 program, inviting new companies to compete with SpaceX, Blue Origin, and United Launch Alliance.
Structured as an Indefinite Delivery, Indefinite Quantity contract, it's valued at $5.6 billion over five years and will conduct at least 30 missions from 2025 to 2029, potentially extending through 2034.
Prospective entrants must demonstrate launch readiness by December 2025, with proposals due December 13 and awards by Spring 2025.
Among the potential new entrants, Rocket Lab stands out with its Neutron launch vehicle, anticipated to be ready for its first flight by mid-2025.
The company recently achieved a milestone by completing tests on its Neutron engine.
#RKLBStock
The new request for proposals is part of an "on-ramp" strategy in the National Security Space Launch Phase 3 Lane 1 program, inviting new companies to compete with SpaceX, Blue Origin, and United Launch Alliance.
Structured as an Indefinite Delivery, Indefinite Quantity contract, it's valued at $5.6 billion over five years and will conduct at least 30 missions from 2025 to 2029, potentially extending through 2034.
Prospective entrants must demonstrate launch readiness by December 2025, with proposals due December 13 and awards by Spring 2025.
Among the potential new entrants, Rocket Lab stands out with its Neutron launch vehicle, anticipated to be ready for its first flight by mid-2025.
The company recently achieved a milestone by completing tests on its Neutron engine.
#RKLBStock
People tend to focus on the technical difficulty of building an orbital rocket, but even if you achieve that you need to be able to sell launches to customers t...
People tend to focus on the technical difficulty of building an orbital rocket, but even if you achieve that you need to be able to sell launches to customers to be successful.
@Eager_Space on Twitter
Triabolical_ on Reddit
https://www.patreon.com/eagernetwork
https://www.facebook.com/Eager-Space-103843052204122
People tend to focus on the technical difficulty of building an orbital rocket, but even if you achieve that you need to be able to sell launches to customers to be successful.
@Eager_Space on Twitter
Triabolical_ on Reddit
https://www.patreon.com/eagernetwork
https://www.facebook.com/Eager-Space-103843052204122
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/National_Security_Space_Launch
00:01:17 1 History
00:01:26 1.1 Initial program goals
00:03:59 1.2 1990s-2000s
00:05:32 1.3 2010s
00:07:04 1.4 2018 to 2020s
00:07:58 2 Launch vehicles
00:08:34 2.1 Active
00:08:43 2.1.1 Atlas V - certified
00:09:30 2.1.2 Delta IV Heavy - certified
00:09:52 2.1.3 Falcon 9 - certified
00:10:03 2.1.4 Falcon Heavy - certified
00:11:16 2.2 Next generation vehicle competition
00:11:27 2.2.1 New Glenn
00:11:58 2.2.2 OmegA
00:13:27 2.2.3 Vulcan
00:14:36 3 References
00:15:01 4 External links
00:15:25 Vulcan
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.882228574270591
Voice name: en-GB-Wavenet-C
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
National Security Space Launch (NSSL) is a program of the United States Air Force (USAF) intended to assure access to space for DoD and other US government payloads.
Started in 1994 as the Evolved Expendable Launch Vehicle (EELV) launch system program, the initial program goal was to make government space launches more affordable and reliable, leading to the development of the Delta IV and Atlas V EELV families. As of 2019, these launch vehicles are the primary methods for launching U.S. military satellites, along with the Falcon 9 developed under NASA's CRS program.On 1 March 2019, the program changed its name from EELV to National Security Space Launch (NSSL) to better reflect the changing nature of launch contracting, including the retirement of STS and the inclusion of reusable vehicles. The NSSL program launches the nation's most valuable military satellites; contracts to launch lower value payloads, such as those of the Space Test Program, are awarded using different methodologies.
What do some rockets use engines that are different than the ones we would expect them to use? We'll look at the Delta IV and the ULA Vulcan.
How to choose a first stage fuel for your rocket:
https://www.youtube.com/watch?v=DiH5Hg21W8E
Rocket Lab is set to challenge SpaceX in the military space launch arena, confirming its intent to bid for Pentagon contracts with its Neutron rocket.
“We’re excited to bid this time round for NSSL (National Security Space Launch) Lane 1, and we think Neutron is a really good vehicle for it,” Rocket Lab CEO Peter Beck told SpaceNews.
The Space Force requires the next round of Lane 1 bidders to be ready for a first launch by December 2025, a timeline Beck says Neutron can meet.
“We think we can get there, but ultimately the government will decide that,” he said.
Peter B. Teets, acting secretary of the U.S. Air Force; Steve Shaw, the Air Force top official for contractor debarment and suspensions; and U.S. Air Force Maj. Gen. Craig R. Cooning, director, Space Acquisition, Office of the Under Secretary of the Air Force, give a press conference regarding the Evolved Expendable Launch Vehicle Program at the Pentagon in Arlington, Va., March 4, 2005. The footage is from the collection held by the U.S. Department of Defense Office of the Assistant Secretary of Defense (Public Affairs). (DoD video/Released) [75616301_xxx_fc.mov]
The new request for proposals is part of an "on-ramp" strategy in the National Security Space Launch Phase 3 Lane 1 program, inviting new companies to compete with SpaceX, Blue Origin, and United Launch Alliance.
Structured as an Indefinite Delivery, Indefinite Quantity contract, it's valued at $5.6 billion over five years and will conduct at least 30 missions from 2025 to 2029, potentially extending through 2034.
Prospective entrants must demonstrate launch readiness by December 2025, with proposals due December 13 and awards by Spring 2025.
Among the potential new entrants, Rocket Lab stands out with its Neutron launch vehicle, anticipated to be ready for its first flight by mid-2025.
The company recently achieved a milestone by completing tests on its Neutron engine.
#RKLBStock
People tend to focus on the technical difficulty of building an orbital rocket, but even if you achieve that you need to be able to sell launches to customers to be successful.
@Eager_Space on Twitter
Triabolical_ on Reddit
https://www.patreon.com/eagernetwork
https://www.facebook.com/Eager-Space-103843052204122
Evolved Expendable Launch Vehicle (EELV) is an expendable launch system program of the United States Air Force (USAF), intended to assure access to space for Department of Defense and other United States government payloads. The program, which began in the 1990s with the goal of making government space launches more affordable and reliable, resulted in the development of two launch systems, Delta IV and Atlas V. These two launch systems are the primary methods for launching U.S. military satellites.
The USAF plans to use the EELV family of launch vehicles until at least 2030. Follow-on technologies are being considered, one of which was originally the Reusable Booster System until its discontinuation.