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E2 Vacuum
The vacuum-optimized E2 variant developed by ABL for RS1's second stage.
Identity
Domains
spaceflight
Identity Level
variant
Kind
liquid-rocket-engine
Name
E2 Vacuum
Status
historical
Details
Description
The vacuum-optimized E2 variant developed by ABL for RS1's second stage.
Developers
Developer
Family
Family
Manufacturers
Manufacturer
Propellants
Jet-A
liquid oxygen
Links
Official Url
https://ablspacesystems.com/wp-content/uploads/2022/06/ABL-Payload-Users-Guide-2022-V1.pdf
Assets & Meta
Creation Time
July 29, 2026 at 11:21:16 UTC
Updated Time
July 29, 2026 at 11:21:56 UTC
Other
Sources
Accessed Date
2026-07-29
Note
Supports the legacy vehicle installation and the narrow canonical identity used for migration.
Publisher
Official vehicle or program source
Title
ABL RS1 Block 1 official vehicle reference
Url
https://ablspacesystems.com/wp-content/uploads/2022/06/ABL-Payload-Users-Guide-2022-V1.pdf
Accessed Date
2026-07-29
Note
Supports the legacy vehicle installation and the narrow canonical identity used for migration.
Publisher
Official vehicle or program source
Title
ABL RS1 Block 2 official vehicle reference
Url
https://blog.ablspacesystems.com/p/building-e2/
Accessed Date
2026-07-29
Publisher
SpaceNews
Title
ABL Space exits commercial launch market, shifts focus to missile defense
Url
https://spacenews.com/abl-space-exits-commercial-launch-market-shifts-focus-to-missile-defense/
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