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RD-108-8D75
Original RD-108 8D75 core-stage engine variant for the R-7 8K71/8K74 base vehicles.
Identity
Aliases
8D75
RD-108-8D75 core-stage engine
Domains
spaceflight
Identity Level
variant
Kind
liquid-rocket-engine
Name
RD-108-8D75
Status
retired
Details
Description
Original RD-108 8D75 core-stage engine variant for the R-7 8K71/8K74 base vehicles.
Developers
Developer
Family
Family
Manufacturers
Manufacturer
Propellants
kerosene
liquid oxygen
Rocket Specs
Chamber Count
4
Assets & Meta
Creation Time
August 1, 2026 at 17:54:03 UTC
Updated Time
August 1, 2026 at 17:54:03 UTC
Other
Sources
Accessed Date
2026-08-01
Note
The archived R-7 stage table identifies the central R-7 core block as RD-108-8D75 and marks the original stage out of production.
Publisher
NASA Safety and Mission Assurance
Title
R-7 technical vehicle document
Url
https://sma.nasa.gov/LaunchVehicle/assets/astonautix-r7-document.pdf
Accessed Date
2026-08-01
Note
Rostec identifies RD-107 and RD-108 as engines developed specifically for the R-7 program and distinguishes their booster/core roles.
Publisher
Rostec
Title
The space success of the RD-107/108 engines
Url
https://rostec.ru/media/news/kosmicheskiy-uspekh-dvigatelya-rd-107-108/
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